基于沉降控制的刚性桩复合地基设计方法及应用

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Abstract Some problems of rigid pile composite foundation design according to current codes have been analyzed. After investigating the function of cushion in rigid pile composite foundation and the influence rules of cushion thickness and stiffness of soil on pile-soil stress ratio，the tangent modulus method proposed by YANG Guanghua is used to study the design method according to settlement control. The design method is presented as follows. Firstly，supposing that pile and soil are independent systems，the nonlinear p-s curves(where p is stress，s is settlement) of pile and soil are calculated，respectively. Then，according to the deformation compatibility principle，the settlement curve of composite foundation is obtained by the above p-s curves. Finally，by controlling settlement and adjusting cushion thickness，loads on piles and soil are optimized，which makes the design of rigid pile composite foundation reach the best state. A practical project design is optimized by this method. The calculation value is very close to the measured settlement，which proves the rationality of this design method. This method better considers pile-soil interaction；and its parameter determination is relatively simple and reliable，so as to give a new idea in rigid pile composite foundation design.

Key words： pile foundations composite foundation rigid pile deformation compatibility tangent modulus method settlement control

Received: 27 May 2013

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https://rockmech.whrsm.ac.cn/EN/Y2013/V32/I10/2135

[1]	杨光华，苏卜坤，乔有梁. 刚性桩复合地基沉降计算方法[J]. 岩石力学与工程学报，2009，28(11)：2 193-2 200.(YANG Guanghua，SU Bukun，QIAO Youliang. Method for calculating settlement of rigid-pile composite foundation[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(11)：2 193-2 200.(in Chinese)) " target="_blank">
[2]	杨光华. 地基沉降计算的新方法[J]. 岩石力学与工程学报，2008，27(4)：679-686.(YANG Guanghua. A new settlement computation method of the soil foundation[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(4)：679-686.(in Chinese))
[3]	刘鹏，杨光华. 考虑桩土变形协调的软土刚性桩复合地基设计计算[J]. 岩石力学与工程学报，2011，30(增2)：4 039-4 046.(LIU Peng，YANG Guanghua. Designed calculation of rigid-pile composite foundation in soft soil ground considering deformation compatibility of pile and soil[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(Supp.2)：4 039-4 046.(in Chinese)) " target="_blank">
[4]	龚晓南. 复合地基理论及工程应用[M]. 北京：中国建筑工业出版社，2002：45-67.(GONG Xiaonan. Theory of composite foundation and engineering application[M]. Beijing：China Architecture and Building Press，2002：45-67.(in Chinese)) " target="_blank">
[5]	龚晓南，褚航. 基础刚度对复合地基性状的影响[J]. 工程力学， 2003，20(4)：67-73.(GONG Xiaonan，CHU Hang. The influence of base stiffness on status of composite foundations[J]. Engineering Mechanics，2003，20(4)：67-73.(in Chinese))
[6]	姜燕. 刚性桩复合地基褥垫层设置问题研究[硕士学位论文][D]. 郑州：郑州大学，2010.(JIANG Yan. Research on cushion of rigid-pile composite foundation[M. S. Thesis][D]. Zhengzhou：Zhengzhou University，2010.(in Chinese)) " target="_blank">
[7]	姜燕，杨光华，姚丽娜，等. 刚性桩复合地基褥垫层合理厚度的确定[J]. 广东水利水电，2012，(7)：12-16.(JIANG Yan，YANG Guanghua，YAO Lina，et al. Determination of thickness the rigid pile composite foundation[J]. Guangdong Water Resources and Hydropower，2012，(7)：12-16.(in Chinese)) " target="_blank">
[8]	闫明礼，张东刚. CFG桩复合地基技术及工程实践[M]. 北京：中国水利水电出版社，2006：85-104.(YAN Mingli，ZHANG Donggang. Technology and engineering practice of composite foundation with CFG pile[M]. Beijing：China Water Power Press，2006：85-104.(in Chinese)) " target="_blank">
[9]	陈伟超. 刚性桩复合地基承载性状研究及优化设计[硕士学位论文][D]. 广州：华南理工大学，2011.(CHEN Weichao. Study on bearing behavior and optimum design of rigid-pile composite foundation[M. S. Thesis][D]. Guangzhou：South China University of Technology，2011.(in Chinese)) " target="_blank">
[10]	杨光华，李德吉，官大庶. 刚性桩复合地基优化设计[J]. 岩石力学与工程学报，2011，30(4)：818-825.(YANG Guanghua，LI Deji， GUAN Dashu. Optimization design of rigid pile composite foundation[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(4)：818-825.(in Chinese))
[11]	中华人民共和国行业标准编写组. JGJ79—2002建筑地基处理技术规范[S]. 北京：中国建筑工业出版社，2002.(The Professional Standards Compilation Group of People?s Republic of China. JGJ79—2002 Technical code for ground treatment[S]. Beijing：China Architecture and Building Press，2002.(in Chinese)) " target="_blank">
[12]	中华人民共和国行业标准编写组. DBJ15-38—2005建筑地基处理技术规范[S]. 北京：中国建筑工业出版社，2005.(The Professional Standards Compilation Group of People¢s Republic of China. DBJ15-38—2005 Technical code for ground treatment of buildings[S]. Beijing：China Architecture and Building Press，2005.(in Chinese)) " target="_blank">
[13]	池跃军，宋二祥，陈肇元. 刚性桩复合地基沉降计算方法的探讨及应用[J]. 土木工程学报，2003，36(11)：19-23.(CHI Yuejun，SONG Erxiang，CHEN Zhaoyuan. An simplified method for settlement of rigid-pile composite foundation[J]. China Civil Engineering Journal，2003，36(11)：19-23.(in Chinese)) " target="_blank">
[14]	杨敏. 减少沉降桩基础的设计理论和工程实践[C]//岩土工程青年专家学术论坛文集. 北京：中国建筑工业出版社，1998：129-136.(YANG Min. Theory and application of reducing settlement pile foundation[C]//Proceedings of Academic Forum Young Expert on Geotechnical Engineering. Beijing：China Architecture and Building Press，1998：129-136.(in Chinese)) " target="_blank">
[15]	中华人民共和国国家标准编写组. GB50007—2002 建筑地基基础设计规范[S]. 北京：中国建筑工业出版社，2002.(The National Standards Compilation Group of People?s Republic of China. GB50007—2002 Design code for building foundation[S]. Beijing：China Architecture and Building Press，2002.(in Chinese)) " target="_blank">
[16]	杨光华. 地基非线性沉降计算的原状土切线模量法[J]. 岩土工程学报，2006，28(11)：1 927-1 931.(YANG Guanghua. Nonlinear settlement computation of the soil foundation with the undisturbed soil tangent modulus method[J]. Chinese Journal of Geotechnical Engineering，2006，28(11)：1 927-1 931.(in Chinese)) " target="_blank">
[17]	宰金珉. 复合桩基理论与应用[M]. 北京：中国水利水电出版社，2004：10-32.(ZHAI Jinmin. Theory and application of composite pile foundation[M]. Beijing：China Water Power Press，2004：10-32.(in Chinese)) " target="_blank">
[18]	杨光华. 基础非线性沉降的双曲线模型法[J]. 地基处理，1997，(1)：50-53.(YANG Guanghua. Hyperbola model in calculating the nonlinear settlement of foundation[J]. Ground Improvement，1997， (1)：50-53.(in Chinese)) " target="_blank">
[19]	杨光华，骆以道，张玉成，等. 用简单原位试验确定切线模量法的参数及其在砂土地基非线性沉降分析中的验证[J]. 岩土工程学报，2013，35(3)：401-408.(YANG Guanghua，LUO Yidao，ZHANG Yucheng，et al. Determination of parameters for tangent modulus method using simple in-situ test and its application in nonlinear settlement analysis on sandy soil[J]. Chinese Journal of Geotechnical Engineering，2013，35(3)：401-408.(in Chinese))
[20]	杨光华，李艳华. 复杂地质条件下高层建筑岩石地基承载力取值的探讨[J]. 岩土力学，2007，28(增1)：851-853.(YANG Guanghua，LI Yanhua. Research on the determination of the bearing capacity of rock foundation under complicated geological conditions[J]. Rock and Soil Mechanics，2007，28(Supp.1)：851-853.(in Chinese)) " target="_blank">
[21]	闫明礼，张东刚. CFG 桩复合地基技术及工程实践[M]. 北京：中国水利水电出版社，2001：25-44.(YAN Mingli，ZHANG Donggang. CFG pile composite foundation technology and engineering practice[M]. Beijing：China Water Power Press，2001：25-44.(in Chinese)) " target="_blank">
[22]	杨光华. 地基沉降计算的新方法及其应用[M]. 北京：科学出版社，2013：30-125.(YANG Guanghua. The new method to calculate the settlement of the foundation and its applications[M]. Beijing：Science Press，2013：30-125.(in Chinese)) " target="_blank">