| 刚性桩复合地基优化设计 |
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| 引用本文： | 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. |
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| 作者姓名： | 杨光华 李德吉 官大庶 |
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| 作者单位： | (1. 广东省水利水电科学研究院，广东 广州 510610；2. 华南理工大学 土木工程系，广东 广州 510641；
3. 珠江水利科学研究院，广东 广州 510610) |
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| 摘 要： | 采用原状土切线模量法分别计算地基土和桩基的非线性P-S(荷载–沉降)曲线。假设两者为相对独立的体系，在桩和土的位移相等的条件下，根据桩和土的P-S曲线确定桩和土分担的荷载。通过控制沉降量和调整垫层的厚度，协调桩、土的相对刚度，使天然地基和桩基的承载力充分发挥；通过优化设计，使土和桩分担的荷载及沉降都达到要求的目标，从而使刚性桩复合地基的设计达到比较理想的优化状态。最后，通过工程案例说明该方法的实施过程。
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| 关 键 词： | 桩基工程刚性桩复合地基优化设计原状土切线模量法 |
| 收稿时间： | 2010-07-30; |
OPTIMIZATION DESIGN OF RIGID PILE COMPOSITE FOUNDATION |
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| 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. |
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| Authors: | YANG Guanghua LI Deji GUAN Dashu |
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| Affiliation: | (1. Guangdong Research Institute of Water Resources and Hydropower，Guangzhou，Guangdong 510610，China；2. Department of Civil Engineering，South China University of Technology，Guangzhou，Guangdong 510641，China；3. Pearl River Hydraulic Research Institute，Guangzhou，Guangdong 510610，China) |
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| Abstract: | The tangent modulus method of undisturbed soil is used to calculate the nonlinear settlements of soil foundation and pile foundation separately;and the nonlinear relation P-S(load-settlement) curves of the soil foundation and pile foundation are obtained.Supposing that the soil foundation and pile foundation are acted independently,simultaneously considering that the settlements of soil foundation and pile foundation are equal,then we can obtain the load acting on the soil and pile by the P-S curves.Then,by... |
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| Keywords: | pile foundation engineering rigid pile composite foundation optimization design tangent modulus method of undisturbed soil |
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