| 基础局部沉降下土工格栅加筋衬垫系统变形特性的试验研究 |
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| 引用本文： | 许四法,胡琦,王哲,张勇.基础局部沉降下土工格栅加筋衬垫系统变形特性的试验研究[J].土木工程学报,2011(Z2):46-49. |
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| 作者姓名： | 许四法 胡琦 王哲 张勇 |
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| 作者单位： | 浙江工业大学; |
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| 摘 要： | 基础局部沉降会引起垃圾填埋场衬垫系统中的土工膜产生较大的拉应变,有可能导致衬垫系统性能下降,因此正确评价衬垫系统的应变就显得非常重要。通过模拟试验,采用应变片和位移计对基础发生局部沉降后土工格栅加筋衬垫系统的变形进行试验研究。试验结果表明:环境温度对衬垫系统的变形影响较大;相同组成材料下土工格栅和土工膜叠放在一起比其他方案更能降低土工膜的应变;衬垫系统刚度对沉陷范围影响不大,但对最大应变值影响较大。所得结果对垃圾填埋场衬垫系统的设计具有一定的指导意义。
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| 关 键 词： | 基础局部沉降 衬垫系统 土工格栅 应变 环境温度 |
Experimental study on deformation behavior of geosynthetic liner system reinforced with geogrid subjected to local settlement of foundation |
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| Xu Sifa Hu Qi Wang Zhe Zhang Yong.Experimental study on deformation behavior of geosynthetic liner system reinforced with geogrid subjected to local settlement of foundation[J].China Civil Engineering Journal,2011(Z2):46-49. |
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| Authors: | Xu Sifa Hu Qi Wang Zhe Zhang Yong |
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| Affiliation: | Xu Sifa Hu Qi Wang Zhe Zhang Yong (Zhejiang University of Technology,Hangzhou 310032,China) |
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| Abstract: | The local settlement of foundation will cause the tensile strains of geomembrane and non-woven geotextile as geosynthetic liner system,and the greater tensile strain will lead to the tensile failure of geosynthetic liner system or the degradation of performance.Therefore,it is very important to correctly evaluate the tensile strain of liner system.The deformation behavior of geosynthetic liner system was studied by strain gauge and displacement gauge through model test.The test results showed that the tempe... |
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| Keywords: | local settlement of foundation liner system geogrid strain circumstantial temperature |
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