坑中坑基坑等效计算深度初探
摘要:基坑工程中的坑中坑问题是一个非常普遍但又没有进行深入研究的问题,如何将坑中坑设计等效为常规设计是一个具有现实意义的难题。基于外墙最大墙体变形的等效原则,分析了等效方法的可行性,并通过对坑趾系数χ、内外坑开挖宽度比α、内外坑开挖深度比β的分析,就等效计算深度的公式进行了初步探讨。
Abstract:Problem of "pit in pit" (PIP)is a universal problem which hasn't been researched deeply. It is the realistic meaning for the PIP's equivalent conventional design. According to the rules of equivalent outer protective structure's maximum deformation, the feasibility of the equivalent method was studied. Through analyzing three important parameters:pit toe coefficient(χ), the area ratio of inside and outside(α), the depth ratio of inside and outside(β), a formulas is derived to calculate PIP's equivalent design depth.
中文标题:
坑中坑基坑等效计算深度初探
Preliminary Study of Equivalent Depth Calculation in Pit Retaining
作者:
朱炎兵1,周小华1,廖少明2
Zhu Yanbing1,Zhou Xiaohua1,Liao Shaoming2
作者简介:朱炎兵,1979年生,男,汉族,湖北仙桃人,高级工程师,主要从事地下结构设计和研究。E-mail:mic2001@126.com
通讯地址:
1. 中铁第四勘察设计院集团有限公司, 湖北武汉 430063; 2. 同济大学地下建筑与工程系, 上海 200092
1.ChinaRailwaySiyuanSurveyandDesignGroupCo.,LTD.Wuhan430063,Hubei,China; 2.DepartmentofGeotechnicalEngineering,TongjiUniversity.Shanghai200092,China
中图分类号:TU942;TU433
doi:10.3969/j.issn.1007-2993.2012.02.003
出版物:岩土工程技术
收稿日期:2012-02-06
网络出版日期:2021-07-06
关键词:坑中坑基坑,等效深度,面积比,深度比,坑趾系数,数值分析
Key words:pit in pit,equivalent calculating depth,area ratio,depth ratio,pit toe coefficient,numerical simulation
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