【摘要】 采用弹性地基上的板壳有限元 ,分析地铁平行换乘车站深基坑开挖过程中 ,坑底土体加固的深度、加固的密度、加固的程度对基坑变形的影响。在基坑开挖过程中 ,坑底土体加固主要影响开挖面以下连续墙侧向变形 ,对基坑最后一道支撑以上墙体变形影响很小更多还原

【Abstract】 The influence of the depth of soil consolid ation at the foundation bo ttom, the density of consolidation and degree of consolidation on the deformatio n of foundation pit during excavation of deep foundation at parallel transition station of a metro is analyzed with finite element of shell plate on the elastic ground. During excavation of foundation pit, the consolidation of soil at pit b ottom will affect the lateral deformation of continuous wall below the excavatio n surface and have a little influence on the deformation of the wall above the l ast support of the pit.更多还原