| 基坑开挖卸载土体变形的试验研究 |
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| 引用本文： | 周敦云.基坑开挖卸载土体变形的试验研究[J].山东建筑工程学院学报,2003,18(3):15-18. |
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| 作者姓名： | 周敦云 |
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| 作者单位： | 青岛建筑工程学院建筑设计研究院 山东 |
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| 摘 要： | 对青岛地区某深基坑工程的20个粉质粘土原状饱和试样在K0状态下进行不排水卸荷试验,对其应力-应变关系进行分析研究,目的在于了解该种土在卸荷条件下试验应力-应变的变化规律,探索弹性模量方程的形式。研究结果表明:卸荷条件下该土的试验应力-应变曲线仍可用双曲线形式模拟,且与常规三轴压缩试验应力-应变曲线相似,它们之间可用一个常量来表达,而其弹性模量却有各自不同的表达形式。
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| 关 键 词： | 基坑 卸载 应力应变 试验研究 |
Experimental research on deformation of foundation pit soil |
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| ZHOU Dun-yun.Experimental research on deformation of foundation pit soil[J].Journal of Shandong Institute of Architecture and Engineering,2003,18(3):15-18. |
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| Authors: | ZHOU Dun-yun |
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| Abstract: | A series of experimental researches on the deformation character were made for 20 undisturbed saturated samples of silty clay from a deep foundation pit in Qingdao at K0 state with no drain. The stress-strain curves are tested aiming at finding out equations of elastic modulus in unloading condition of silty clay. The result shows that the stress-strain curve in unloading condition is a hyperbola similar to the routine one of three-axis compression tests while the equation of elastic modulus is different from each other. |
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| Keywords: | foundation pit unloading stress-strain experimental research |
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