| 非线性差异沉降分析 |
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| 引用本文： | 张国霞,张乃瑞,张风林. 非线性差异沉降分析[J]. 岩土工程学报, 1981, 3(3): 41-48 |
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| 作者姓名： | 张国霞 张乃瑞 张风林 |
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| 作者单位： | 北京市勘察处； |
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| 摘 要： | 本文提出一种单向压-剪模型来解释北京某幢房屋在兴建过程中所观测到的非线性差异沉降现象,这种模型是建立在波速与动、静三轴试验中所得到的剪切模量与应变之间的双对数折线关系上的。为了能够在类似情况下进行设计,已经通过载荷试验与建筑物的实测沉降倒算出半经验参数。
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| 关 键 词： | 差异沉降 压剪 原生土 非线性 压密 剪切模量 前期固结压力 地基 垂直压力 前第四纪 |
Nonlinear Differential Settlement Analysis |
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| Zhang Guo-xia,Zhang Nai-rui and Zhang Feng-lin. Nonlinear Differential Settlement Analysis[J]. Chinese Journal of Geotechnical Engineering, 1981, 3(3): 41-48 |
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| Authors: | Zhang Guo-xia Zhang Nai-rui Zhang Feng-lin |
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| Affiliation: | Beijing Municipal Geotechnical Exploration Department |
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| Abstract: | A one-dimensional consolidation-shear model based upon a broken-line relationship between shear modulus and strain on a log-log plot established from simultaneously conducted insitu shear wave velocity and dynamic/static triaxial compression tests is proposed to explain the non-linear differential settlement behaviour observed during the construction of a building in Beijing. Semi-empirical coefficients based on this model are back-figured from plate load tests and observed settlements using the conventional layered-sum method of settlement analysis and a computer program of soil-structure interaction for use in future design under similar conditions. |
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