| 椭圆形基坑支护土压力分布理论初探 |
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| 引用本文： | 李大鹏,唐德高,黄牧,钱岳红,杜维国.椭圆形基坑支护土压力分布理论初探[J].河海大学学报(自然科学版),2014,42(4):332-336. |
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| 作者姓名： | 李大鹏 唐德高 黄牧 钱岳红 杜维国 |
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| 作者单位： | 解放军理工大学国防工程学院爆炸冲击防灾减灾国家重点实验室,解放军理工大学国防工程学院爆炸冲击防灾减灾国家重点实验室,解放军理工大学国防工程学院爆炸冲击防灾减灾国家重点实验室,解放军92303部队,解放军96528部队 |
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| 基金项目： | 国家自然科学基金(51021001) |
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| 摘 要： | 为使基坑设计更加科学合理，分析了椭圆形基坑支护的变形和土压力分布情况。结果表明:椭圆形支护上存在4个土压力转变点，在转变点处土压力会发生主、被动之间性质的转变；作用于支护上的土压力值是区别于经典理论的“类主动土压力”和“类被动土压力”，它们之间存在一定的比例关系。根据椭圆形支护上土压力的分布模式，提出了3种确定椭圆形支护土压力的方法。
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| 关 键 词： | 椭圆形基坑 类主动土压力 类被动土压力 土压力分布模式 |
| 收稿时间： | 2014/4/8 0:00:00 |
| 修稿时间： | 2014/9/4 0:00:00 |
Theoretical analysis of soil pressure acting on elliptical excavation support |
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| LI Dapeng,TANG Degao,HUANG Mu,QIAN Yuehong and DU Weiguo.Theoretical analysis of soil pressure acting on elliptical excavation support[J].Journal of Hohai University (Natural Sciences ),2014,42(4):332-336. |
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| Authors: | LI Dapeng TANG Degao HUANG Mu QIAN Yuehong and DU Weiguo |
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| Institution: | State Key Laboratory for Disaster Prevention and Mitigation of Explosion and Impact, College of Defense Engineering, PLA University of Science and Technology, Nanjing 210007, China,State Key Laboratory for Disaster Prevention and Mitigation of Explosion and Impact, College of Defense Engineering, PLA University of Science and Technology, Nanjing 210007, China,State Key Laboratory for Disaster Prevention and Mitigation of Explosion and Impact, College of Defense Engineering, PLA University of Science and Technology, Nanjing 210007, China,92303 PLA Troops, Qingdao 266405, China and 96528 PLA Troops, Beijing 102202, China |
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| Abstract: | In order to scientifically and rationally design excavations, we analyze the deformation and soil pressure distribution of an elliptical excavation support. The results show that there are four soil pressure changing points on the elliptical excavation support, similar active soil pressure and similar positive soil pressure change at these points, and there is a proportional relationship between the similar active soil pressure and similar positive soil pressure, in contrast to the classical theory. According to the distribution modes of soil pressure acting on the elliptical excavation support, we propose three methods for determining the soil pressure. |
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| Keywords: | elliptical foundation pit similar active soil pressure similar positive soil pressure soil pressure distribution mode |
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