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港口工程中,常遇到一些小型的沉井工程,如地下油罐房,污水泵房、机座等。这些沉井工程,虽然规模不大,建筑面积一般在100平方米左右,但若施工区域地下水位高流量大,沉井的施工技术便较复杂。如施工不善,有可能沉井封底不牢或渗水、漏水,造成工程稳患,影响使用。现以某港煤码头某机座的沉井为例,将此类沉井施工的要点作一简介。
In port engineering, there are often some small open caisson projects, such as underground tank houses, sewage pump rooms, and machine bases. Although these open caisson projects are not large-scale, the construction area is generally about 100 square meters, but if the groundwater level in the construction area is high, the construction technology of caisson will be more complicated. If the construction is not good, it may be that the back cover of the well is not solid or seepage or water leaking, which may cause the project to stabilize and affect the use. Taking the caisson of a certain coal terminal at a coal port as an example, the main points of such caisson construction will be briefly introduced.