文档介绍：自来水管道施工方案
安徽芜湖长江二桥 DN600
自来水改建工程
施
工
方
案
编制单位 :山东军辉建设安装工程有限公司
张家港分公司
编制单位 :2015 年 4 月 15 日
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 , 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 cleara