| 地基非线性沉降计算原状土切线模量法的推广和应用 |
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| 引用本文： | 杨光华,王俊辉.地基非线性沉降计算原状土切线模量法的推广和应用[J].岩土力学,2011,32(Z1):33-37. |
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| 作者姓名： | 杨光华 王俊辉 |
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| 作者单位： | 1. 广东省水利水电科学研究院，广州 510610；2. 华南理工大学 土木系，广州 510640；3. 台山核电合营有限公司，广东 台山 529228 |
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| 摘 要： | 根据原状地基的载荷试验曲线，对于试验曲线为任意形式的情况下，提出了直接应用实测压板试验的P-S曲线，依据应力水平确定原状土切线模量的一般方法，建立了应力水平与原状土切线模量的关系。用该切线模量对地基沉降进行分层总和法计算，反映了原状地基土的特点和土的非线性，可以用于较准确地进行地基的沉降计算，且可以计算地基的非线性沉降过程，同时可以克服原切线模量法中假设压板试验曲线为双曲线方程的限制，使原状土切线模量法能应用于更广的范围。通过实例说明了方法的可行性
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| 关 键 词： | 地基沉降 切线模量 平板载荷试验 分层总和法 非线性 |
| 收稿时间： | 2010-08-24 |
Application of undisturbed soil tangent modulus method for computing nonlinear settlement of soil foundation |
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| YANG Guang-hua ,WANG Jun-hui.Application of undisturbed soil tangent modulus method for computing nonlinear settlement of soil foundation[J].Rock and Soil Mechanics,2011,32(Z1):33-37. |
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| Authors: | YANG Guang-hua WANG Jun-hui |
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| Institution: | 1. Guangdong Provincial Research Institute of Water Resources and Hydropower, Guangzhou 510610, China; 2. Department of Civil Engineering, South China University of Technology, Guangzhou 510640, China; 3. Taishan Nuclear Joint Venture Co.,Ltd., ,Taishan, Guangdong 529228, China |
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| Abstract: | Based on the in-site plate loading curve,the undisturbed soil tangent modulus of soil can be computed based on its stress level;then the foundation settlement can be computed by using undisturbed soil tangent modulus in the layerwise summation method.This method takes the nonlinearity and original state of soil into consideration,and can be used to different kinds of loading curves and in the large scale.it can also overcome the shortcomings of the original tangent modulus method which supposes the loading ... |
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| Keywords: | foundation settlement tangent modulus plate loading test layerwise summation method nonlinearity |
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