施工中的码头、驳岸在收尾工程中都要涉及土体回填。按照常规,基坑内淤泥必须清除干净,然后用砂粉层填平夯实,而且土层的承载力f值不得小于75hpa,必须要控制最佳含水量,分层夯实,每层厚度不得超过松填土300mm,使之土体吻合于码头和驳岸的墙后。当然土体回填控制的不佳,会带来许多相应的负效应,给工程质量带来许多麻烦,使之整体工程不能发挥其正常的效益。 Construction of the pier, revetment in the closing project must be involved in soil backfill. In accordance with the conventional practice, the silt in the foundation pit must be removed cleanly and then compacted with a layer of sand powder. The f bearing capacity of the soil layer should not be less than 75hpa. The optimum water content must be controlled. Layers compacted shall be compacted. The thickness of each layer shall not exceed the thickness of the loose- Soil 300mm, so that the soil is consistent with the dock and the revetment of the wall. Of course, the poor control of soil backfill will bring about many corresponding negative effects, which will bring a lot of troubles to the quality of the project so that the overall project can not exert its normal benefits.