港口工程中非均质层状地基承载力计算方法

›› 2006, Vol. 27 ›› Issue (7): 1124-1128.

港口工程中非均质层状地基承载力计算方法

袁凡凡¹，栾茂田^{1, 2}，闫澍旺³，孙万禾⁴，毛明⁵

1.中国科学院岩土力学重点实验室，武汉 430071；2.大连理工大学土木水利学院，大连 116024；3.天津大学土木建筑学院，天津 300072； 4.天津港湾研究所，天津 300222；5.湖北省交通规划设计院，武汉 430051

收稿日期:2005-03-04 出版日期:2006-07-10 发布日期:2013-11-19
作者简介:袁凡凡，男，1977年生，博士，副研究员，主要从事软土力学与工程、土工数值分析与计算等方面的研究工作
基金资助:
国家自然科学基金资助项目(No,50509023, No.50579006)

Methods for estimating bearing capacity of layered foundations in harbor engineering

YUAN Fan-fan¹, LUAN Mao-tian^{1, 2}, YAN Shu-wang³, SUN Wan-he⁴, MAO Ming⁵

1. Key laboratory of Rock and Soil Mechanisms, Chinese Academy of Sciences, Wuhan 430071, China; 2. Institute of Geotechnical Engineering, School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China; 3. Institute of Geotechnical Engineering, School of Civil Engineering and Architectures, Tianjin University, Tianjin 300072, China; 4. Tianjin Port Engineering Institute, Tianjin 430052, China; 5.Huhei Institute of Traffic Plan and Design, Wuhan 430051, China

Received:2005-03-04 Online:2006-07-10 Published:2013-11-19

摘要/Abstract

摘要： 在深水码头、防浪堤等大型港口工程建设中常常会遇到构筑物下覆地基由非均质的层状土构成的情况。对于这类非均质层状地基，我国港口工程地基规范推荐采用Hansen 61公式、Hansen 69公式和Sokolovskii数值解法3种方法计算地基的极限承载能力。然而，工程实践中由这3种方法计算得出的地基极限承载力数值往往有较大的差别。考虑到规范的继承性，基于牛顿迭代法，针对3个理论计算公式编制了计算程序，根据长江口深水治理二期工程地质实测资料，运用该计算程序对该地区地基的极限承载能力进行了计算比较。计算结果表明，对于非均质层状地基，在相同地质条件、相同荷载条件下Sokolovskii数值解法得到的承载力数值最大，Hansen 69公式得到的承载力数值最小。

关键词: 港口工程, 非均质层状地基, 极限承载力, 牛顿迭代法

Abstract: In Harbor Engineering, it is often the case that subsoil consists of layered soils. In China, Hansen 61’s methods、Hansen 69’s methods and developed Sokolovski methods were recommended by the code to estimate the ultimate bearing capacity of layered foundation. However, in practice the ultimate bearing capacities of layered foundations predicted by the three methods are different from each other. Considering inherits of the codes, a calculation program has been compiled using Newton iteration methods to solve the expressions presented in the codes. Then, basing on the geotechnical information in the Yangtze River mouth region, the ultimate bearing capacities of layered foundations have been computed by the program and the predictions from three methods have been compared each other. The results show that under the same geotechnical conditions and similar loading conditions, the developed Sokolovski methods shall provide the largest bearing capacity values among three methods; while the bearing capacity value from Hansen 69’s methods shall be smallest.

Key words: harbor engineering, ultimate bearing capacity, layered foundation, Newton iteration methods

中图分类号:

TU 451

袁凡凡，栾茂田，闫澍旺，孙万禾，毛明,. 港口工程中非均质层状地基承载力计算方法[J]. , 2006, 27(7): 1124-1128.

YUAN Fan-fan , LUAN Mao-tian , YAN Shu-wang , SUN Wan-he , MAO Ming,. Methods for estimating bearing capacity of layered foundations in harbor engineering[J]. , 2006, 27(7): 1124-1128.

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