临河区域深基坑工程变形监测与模拟研究

DEFORMATION MONITORING AND SIMULATION OF DEEP FOUNDATION PIT ENGINEERING NEAR RIVER

以合肥某调蓄池深基坑工程为依托,开展流砂+竖向裂隙中风彳傾复杂地质条件下环水超深基坑安全施工案例分析,应用有限元软件模拟分析基坑开挖全过程,通过开挖过程中的监测数值,结合数值模拟研究,分析深基坑开挖过程中的变形规律,总结出沿河区域深基坑支护结构的合理方案。

Relying on a deep foundation pit project of a storage tank in Hefei,a case study of safe construction of ultra-deep foundation pits surrounded by water under complicated geological conditions in quicksand+weathered rock in vertical cracks was carried out,and the whole process of foundation pit excavation was simulated and analyzed by finite element software.Through the monitoring value during the excavation process,combined with the numerical simulation study,the deformation law of the deep foundation pit excavation process is analyzed,and the reasonable plan of the deep foundation pit supporting structure along the river area is summarized.