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混疑土的浇筑工程大致由混凝土的搅拌、运送、布料、捣实、耙平、表面抹平和养护等作业组成。混凝土在搅拌站搅拌,再用车辆运到施工现场,接着用混凝土泵车通过管路压送到浇筑点。但是混凝土压送管路的出口(即软管端部)移动时相当重,而浇注则全都靠人力去完成。这种作业劳动强度大,既脏又累,劳动条件很差。
The construction of concrete for contaminated soil is roughly composed of operations such as concrete mixing, transportation, cloth, compaction, tamping, surface smoothing, and maintenance. The concrete is stirred at the mixing station, transported to the construction site by vehicles, and then pumped by a concrete pump truck to the pouring point through the pipeline. However, the exit of the concrete pressure-feeding pipeline (that is, the end of the hose) is quite heavy when it is moved, and the pouring is all done by human effort. This kind of work is labor-intensive, dirty and tired, and the working conditions are poor.