在地下连续墙深基坑开挖工程中 ,开挖前常用灌浆的方法来加固将被挖去的软土 ,从而减少地下连续墙的变形 ,增加开挖稳定性 ,保证工程安全 .但是 ,在灌浆过程中 ,灌浆的作用机制以及对地下连续墙及邻近土体变形的影响原理还没有得到很好的研究 .以新加坡艺术中心地下连续墙深基坑开挖工程为背景 ,实测了灌浆施工过程中 ,地下连续墙的变形、超孔隙水压力以及地下水位的变化 ;再结合有限元的理论分析方法 ,研究了灌浆施工对地下连续墙及邻近土体变形的影响 .理论及实测结果显示 :在灌浆施工过程中 ,灌浆的效果相当于产生一个灌浆侧向压力 ,该侧向压力作用在灌浆深度范围内的地下连续墙墙背上 ,使得地下连续墙产生较大的、朝向墙背方向的位移 ,从而可以减少在其后的基坑开挖过程中墙体的变形 .实测结果表明 :灌浆施工过程中 ,超孔隙水压力增加 ,地下水位几乎维持不变 In the deep foundation pit excavation of underground continuous wall, the grouting method used before excavation is to reinforce the soft soil to be excavated so as to reduce the deformation of continuous diaphragm wall, increase the stability of excavation and ensure the safety of the project. However, In the process of grouting, the mechanism of grouting and the effect on the deformation of the diaphragm wall and the adjacent soil have not been studied well.Based on the excavation of deep foundation pit of Singapore Art Center underground diaphragm wall, the grouting construction process The deformation of underground diaphragm wall, the excess pore water pressure and the change of groundwater level are analyzed. The effect of grouting construction on the deformation of underground continuous wall and adjacent soil body is also studied with the theoretical analysis method of finite element method. The theoretical and experimental results show that in the During grouting, the effect of grouting is equivalent to creating a grouting lateral pressure acting on the back of a continuous subsurface wall within the grouting depth, resulting in large displacements of the diaphragm wall towards the back of the wall , Which can reduce the deformation of the wall during the subsequent excavation process.The results show that: during the grouting construction, the excess pore water pressure Plus, the water table is almost unchanged