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NIU Fujun, LIU Yuhai, NI Wankui. 2001: 软土基坑变形失稳形态模拟试验研究. JOURNAL OF ENGINEERING GEOLOGY, 9(1): 93-99.
Citation:
NIU Fujun, LIU Yuhai, NI Wankui. 2001: 软土基坑变形失稳形态模拟试验研究. JOURNAL OF ENGINEERING GEOLOGY, 9(1): 93-99.
NIU Fujun, LIU Yuhai, NI Wankui. 2001: 软土基坑变形失稳形态模拟试验研究. JOURNAL OF ENGINEERING GEOLOGY, 9(1): 93-99.
Citation:
NIU Fujun, LIU Yuhai, NI Wankui. 2001: 软土基坑变形失稳形态模拟试验研究. JOURNAL OF ENGINEERING GEOLOGY, 9(1): 93-99.
软土基坑变形失稳形态模拟试验研究
NIU Fujun
,
LIU Yuhai
,
NI Wankui
Graphical Abstract
Graphical Abstract
Abstract
Abstract
通过不同土性、地下水条件下软土基坑开挖变形失稳的模拟试验, 研究了软土基坑开挖变形发展直至失稳破坏的全过程。通过试验研究, 初步认为软土基坑坑壁在无支护或支护刚度较小的情况下, 其坑壁破坏形态呈抛物线型; 在基坑开挖范围内若存在有砂性土, 且地下水位较高时, 易于发生流砂渗透破坏, 并导致了地表沉陷, 但侧向变形相对较小; 而对于因承压水引起的坑底土体隆起变形, 若不考虑土体的强度特性, 计算结果是偏于安全的。
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