o型密封圈 o型密封圈标准

o型密封圈 o型密封圈 o型密封圈 o型密封圈标准 o型密封圈 o型密封圈标准 进口密封圈|密封圈标准供应进口|o型o型密封圈|密封圈丁睛胶骨架油封规格 TC骨架油封规格 圈的应用范围与特征规格 |o型密封圈规格|密封 圈规格表 进口氟胶O型圈型号|氟橡进口氟胶O型圈|氟橡胶耐高温密封圈O|耐腐蚀密封密封圈规格密封圈型号标准 胶O型密封圈国家标准型密封圈|氟|氟橡胶O型密封圈|耐低温密封圈 橡胶O型密封圈生产厂家 圈规格大全 O型圈是一种截面为圆形的橡胶圈，因其截面为O型，故称其为O型圈。液压与气压传动系统中使用最广泛的一种。通常在台企、日企叫做O-Ring.O型密封圈是具有圆形截面的环行橡胶密封圈. 静态条件下， O型密封圈能防止液体和气体介质的泄露. 动态条件下， O型密封圈也能用作轴向往复运动和低速旋转运动的动态密封元件.根据不同的条件,可分别选择不同的材料与之相适应。 规格描述 1/一般规格表示为:内径d1× 线径d2，比如:O形圈25*2.2，其中25代表O形圈内径为25毫米，2.2代表O形圈的截面直径是2.2毫米; 2/规格齐全---有3000副模具，包括各国标准与非标，真正意义上做到了规格齐全。 一、O型圈有多长的使用寿命 O型圈的使用寿命主要是由O型圈的材质和使用环境(温度、压力、介质等)决定的。O型圈按材质分主要为:丁腈橡胶O型圈、氟橡胶O型圈、硅橡胶O型圈、三元乙丙橡胶O型圈、氯丁橡胶O型圈、天然橡胶O型圈等。静态O型圈密封的使用寿命明显比动态O型圈密封的使用寿命要长的多，因为有的O型圈是套在轴上需要滑动或旋转密封的，这时O型圈的使用寿命就是由与o型圈相配合的槽及孔的配合尺寸和表面粗糙度等因素决定。因此，O型圈的使用寿命很难给出确切的年限，使用不当O型圈的使用寿命可能1年或更低，使用妥当，O型圈的使用寿命可能是3年、6年或更高。 二、O型圈硬度的选择 O型圈硬度的选择是O型圈使用中比较重要的一环。O型圈硬度低，便于O型圈安装，但如果O型圈硬度过于偏低，则容易出现O型圈剥落、安装损伤和挤出等不良状况;若O型圈硬度过高，则不易于O型圈的安装。通常O型圈硬度为40,90度(邵氏硬度)，在使用中O型圈一般选用70度是比较合适的，但对于硅橡胶O型圈是个例外，一般使用60 度即可。具体O型圈硬度选用时，需综合考虑O型圈实际使用的环境条件。 d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt . d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt . d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt . d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt . d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt . d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt . d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt . d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt . d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt d slope to facilitate emptying. (1) during the excavation process, feel free to check the status of side slope, vertical dig depth is greater than 1.5M, according to the changes of soil, excavation (Groove) or trench support preparation, to prevent collapse. (2) excavation (Groove) and when the trench should not dig to the design height of the following, if not exactly digging base elevation is to design, persistence of elevation above a layer of soil is not dug, to copy after ping dug out by hand. (3) mechanical construction dig into the Earth, digging manual at any time, and trolleys to transport Earth machinery to dig the place, so as to use the machinery of cherry-picking. 5, trimming ... (1) soil excavation on a rainy day, their work should not be too large, should be done piecemeal, by staging. (2) the rain at the time of construction in the excavation and earth-moving required great attention to slope stability. If necessary, the appropriate slow slope, or braces, while in the pits (Groove) outside surrounded by Earthen berms or digging ditches, prevent surface water from entering. Always check on the slope, support, an embankment, identify problems and deal with. II, backfill Engineering (a) construction preparation research field site formation, earth fill construction plan, determine the fill line, order, range, slope, drainage levels, and so on. 1, the engineering according to the characteristics of species, density of the fill quantity requirements, construction site conditions of reasonable fill soil moisture control, virtual shop and compaction parameters, such as number. 2, underground and above-ground pipelines should be found out before construction obstacles, requirements shall in accordance with the construction plan, the construction of aboveground and underground obstacle clearance in the region and dealt