The study relied on the deep foundation pit project of the Ji'nan Jiluo road yellow tunnel automo-bile repair plant station to study the impact of groundwater level changes on the horizontal displacement of the top of the diaphragm wall.The following conclusions were obtained:(1)With the excavation of the foundation pit,the horizontal displacement of the top of the diaphragm wall gradually increases.(2)By analyzing on-site data,on the 6 th day,the groundwater level significantly decreased and the horizontal displacement of the top of the diaphragm wall also showed significant deformation.(3)In response to the impact of water level changes on the horizontal displacement of the top of the diaphragm wall,effective control of the deformation of the diaphragm wall is carried out from two aspects:the optimization control method of groundwater level and the optimization control method of foundation pit support structure.
关键词
深基坑/地下连续墙/地下水位/水平位移/变形控制
Key words
deep foundation pit/diaphragm wall/groundwater level/horizontal displacement/deforma-tion control