| 植物根系对土体抗剪强度影响的研究 |
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| 引用本文： | 陈春晖,晏鄂川.植物根系对土体抗剪强度影响的研究[J].地质科技情报,2012(4):123-126. |
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| 作者姓名： | 陈春晖 晏鄂川 |
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| 作者单位： | 中国地质大学工程学院 |
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| 基金项目： | 国土资源部项目“三峡库区三期地质灾害防治监测预警工程”(SXJC-3ZH1D1-合[2009]003) |
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| 摘 要： | 通过室内直剪实验分析了不同含水率下有根和无根的扰动砾砂土体的抗剪性能。得出:在相同含水率下,有根土体相对于无根土体其内聚力较小,内摩擦角较大;有根土体的抗剪强度随含水率的增大而减小。最后为其在工程中的应用提出了一些建议,可为植物根系护坡技术的应用提供一定的借鉴意义。
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| 关 键 词： | 植物根系 砾砂 直剪实验 抗剪强度 |
Effect Plant Roots on Shear Strength of Soil |
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| CHEN Chun-hui,YAN E-chuan.Effect Plant Roots on Shear Strength of Soil[J].Geological Science and Technology Information,2012(4):123-126. |
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| Authors: | CHEN Chun-hui YAN E-chuan |
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| Institution: | (Faculty of Engineering,China University of Geosciences,Wuhan 430074,China) |
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| Abstract: | Slope protection with plant roots not only works effectively but also beautifies the environment.It has been used in engineering for a long time and it could be the trend of slope protection in the future.This paper studies the shear behavior of disturbed gravel sand soil with roots and without roots under different water content by using the direct shear test.The results show that,(1) The cohesion of the soil with roots decreased while the internal frictional angle increased under the same water content;(2) The shear strength of soil with roots decreased with the increase of water content.The paper also puts forward some suggestions in engineering application of plant roots in slope protection. |
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| Keywords: | plant roots gravel sand direct shear test shear strength |
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