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目前在实际工程中,格形地下连续墙设计主要采用类似于重力坝式挡土墙的设计方法,对格形地下连续墙的力学性能缺乏理论研究。运用离心机模拟格型地下墙在砂土中的受力情况,在模型试验中,主要对墙体应变、墙体位移和土压力进行了研究,结果表明:格形地下连续墙由于有中间隔墙其整体性较好,墙体位移有类似于重力坝的整体倾覆位移模式,前、后墙间的土压力没有明显的变化规律。
At present, in practical engineering, the design of continuous underground wall with lattice shape mainly adopts the design method similar to gravity dam retaining wall, and there is no theoretical research on the mechanical performance of continuous diaphragm wall. In the model test, the strain of wall, the displacement of wall and the earth pressure are mainly studied by using centrifuge to simulate the force of the grid in the sand. The results show that because of the middle interval The integrity of the wall is better. The displacement of the wall has the same pattern of overturning and displacing as that of the gravity dam. There is no obvious change rule of the earth pressure between the front and back walls.