Practical Investigation into Two Types of Analyses in Predicting Ground Displacements Due to Dewatering and Excavation
Practical Investigation into Two Types of Analyses in Predicting Ground Displacements Due to Dewatering and Excavation
复制标题
预测排水和开挖引起的地面位移的两种分析类型的实际研究
DOI：
10.1061/(asce)as.1943-5525.0000431
复制
发表时间：
2015
影响因子：
2.4
通讯作者：
Wang Jian-Hua
中科院分区：
文献类型：
--
作者：
Tan Yan-Pei;Chen Jin-Jian;Wang Jian-Hua
AbstractTo reduce ground displacements induced by dewatering and excavation in foundation engineering, it is crucial to predict the ground displacements before construction. Two types of analyses, i.e., transient analysis (TA) and steady state analysis (SSA), are often used to predict ground displacements. To facilitate appropriate use of the two analyses in this study, both TA and SSA are carried out for a large-scale excavation in Shanghai, China. The calculations include groundwater table, ground settlement, and horizontal displacement. Comparisons between the calculated results and the measured results are made. Both the calculated and the measured results suggest that the deep mixing soil walls and diaphragm walls play an important part in preventing groundwater seepage and constraining soil movement. The calculated results show similar tendencies to the measured results, although the magnitudes were different. The comparisons indicate that TA is more accurate, and it is appropriate for detailed anal...
