岩土工程学报Issue(z2)：265-268,4.DOI:10.11779/CJGE2014S2046
基坑降水对临近运营高铁桥墩的影响评估分析
Assessment of effect of dewatering of excavations on nearby piers of operating high-speed railways
摘要
Abstract
According to the evaluation of effect of dewatering of excavation of Huqiu Wedding Mall in Suzhou on nearby Shanghai-Nanjing Railway, on the basis of the Darcy's law and the Dupuit assumption, some computing ideas on changes of groundwater levels caused bydewatering of excavations near the piers of piers of operating high-speed railways, considering different degrees of failure cases of closed cut-off curtains in excavations. The pier settlement of operating high-speed railway and change of safety factor caused by the dewatering of excavations are analyzed. The results show that, under certain assumptions, the dewatering of excavations will cause the nonlinear in crease of the neutral point of the bridge and pier settlement growth changing. The safety factor of the pile foundation is reduced, and the piers of high-speed rail ways are sensitive to change of groundwater.关键词
基坑降水/落底式止水帷幕/失效程度/高铁桥墩/沉降/安全系数Key words
dewatering of excavation/closed cut-off curtain/failure degrees/high-speed railway pier/settlement/safety factor分类
建筑与水利引用本文复制引用
孟长江,熊大生,赵海粟,张燕,于廷新..基坑降水对临近运营高铁桥墩的影响评估分析[J].岩土工程学报,2014,(z2):265-268,4.基金项目
中国铁路总公司科技研究开发计划项目 （）
