摘要:采用三维有限元法模拟了地下连续墙单个槽段的成槽施工，研究了泥浆比重、成槽宽度、成槽深度、及成槽厚度对槽壁水平位移及地表沉降的影响。结果表明：槽壁的水平位移和地表沉降对泥浆比重和成槽宽度的变化较为敏感；当成槽深度增加到一定程度后，再增加成槽深度，对槽壁最大水平位移和最大地表沉降的影响很小；成槽厚度的变化对槽壁的水平位移和地表沉降的影响较小。

Abstract: The trenching construction of a single diaphragm wall is simulated using the three-dimensional finite element method. The influences on the soil lateral movements and surface settlements of the factors, including the slurry pressure, the depth, width, and thickness of the wall are studied. It has been found that the soil lateral movements and surface settlements are sensitive to the slurry pressure and the width of the diaphragm wall, while the influence of the thickness of the wall is smaller. The results also show that when the depth of the wall is biger than a certain value, and the variation of the depth of the wall has little effect on the maximum soil lateral movement and surface settlement.