湖南工业大学学报Issue(2)：21-25,5.DOI:10.3969/j.issn.1673-9833.2015.02.004
基坑支护桩非极限准主动土压力计算研究
Calculation and Research on Non-Limit Quasi Active Earth Pressure of Pit Support Pile
摘要
Abstract
At present the foundation pit supporting pile soil pressure calculation mostly applies the classical earth pressure theory or normative experience method, which deduced under the limit equilibrium state, and is significantly different from the foundation pit engineering under non-limit state of soil. Based on the previous research results, applies the method of level-layer analysis and combining with the reasonable assumption to deduce the calculation formula of quasi active earth pressure of non-limit state between initial state and limit state, and improves the method of level-layer analysis. Through the analysis of the foundation pit engineering examples, it shows that the obtained quasi active earth pressure value is basically consistent with the actual measured earth pressure, and the caculating result of the method of level-layer analysis relatively larger than the consequence of Rankine active earth pressure, but it is less than the static earth pressure value, which in line with the non-limit state law of earth pressure. It also illustrated reasonableness of the previous assump-tions and correctness of quasi- active earth pressure formula.关键词
非极限状态/基坑支护/水平层分析法/准主动土压力Key words
non-limit state/foundation pit support/level-layer analysis method/quasi active earth pressure分类
建筑与水利引用本文复制引用
李和志,赵永清,陈春鸣..基坑支护桩非极限准主动土压力计算研究[J].湖南工业大学学报,2015,(2):21-25,5.基金项目
江西省科技计划基金资助项目（20123BBG70180），湖南省教育厅科研基金资助项目（12K103），江西科技学院自然科学研究基金资助项目 （）
