考虑围护结构位移的非对称基坑土压力分析

喻军; 鲁嘉; 龚晓南

考虑围护结构位移的非对称基坑土压力分析 English Version

喻军^1,2,3,
鲁嘉²,
龚晓南³

(1. 浙江工业大学建工学院，浙江杭州 310032；2. 浙江省建设投资集团有限公司，浙江杭州 310012；3. 浙江大学建工学院，浙江杭州 310029)

详细信息

作者简介:
喻军(1978– )，男，湖南邵阳人，博士后，讲师，主要从事基坑及地下工程的研究工作。

中图分类号: TU476
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出版历程
- 收稿日期: 2012-11-12
- 发布日期: 2012-11-12

Earth pressure on supporting structures of asymmetric excavations considering their displacement

(1. College of Civil Engineering And Architecture, Zhejiang University of Technology, Hangzhou 310032, China; 2. Zhejiang Construction Investment Group Co., Ltd., Hangzhou 310012, China; 3. College of Civil Engineering And Architecture, Zhejiang University, Hangzhou 310029, China)

摘要

摘要: 分析了影响土压力值大小的因素，提出了非对称基坑在结构位移的影响下土压力的计算公式，用此公式计算某基坑的土压力，与现场监测数据对比分析，发现非对称基坑的土压力大小是基坑两侧土体位移的综合表现，位移近似等于支撑的变形，土压力略小于支撑的内力；在降水时，土压力值减小，有利于基坑的稳定；在降雨条件下，则相反。研究结果可为其他基坑安全施工设计提供借鉴。
- 位移 /
- 非对称基坑 /
- 土压力分布 /
- 监测
Abstract: The reason of earth pressure alteration is analyzed, and the formula for calculating the earth pressure considering the displacement of structures of asymmetric excavations are put forward. The earth pressure is calculated, compared and analyzed according to the monitoring data. They are almost equal. At the same time, the earth pressure of asymmetric excavations is the comprehensive result of soil displacement around them. The soil displacement is almost equal to the deformation of structure and earth pressure is less than the internal force of supporting structures. A formula for earth pressure considering water pressure and asymmetric displacement is concluded. It is concluded that the earth pressure for dewatering gets less and it benefits to the stability of excavations, and vice versa during raining. The earth pressure is nearly equal to the force of lining. It may be useful for the design of similar projects.
- displacement /
- asymmetric excavation /
- distribution of earth pressure /
- monitoring

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参考文献(11)

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