| 边坡岩土体抗剪强度原位试验研究 |
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| 引用本文： | 杨喆,林杜军,李寅良,韩书栋.边坡岩土体抗剪强度原位试验研究[J].工程勘察,2012(8):18-22. |
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| 作者姓名： | 杨喆 林杜军 李寅良 韩书栋 |
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| 作者单位： | [1]中煤西安设计工程有限责任公司,西安710054 [2]长安大学地质工程与测绘工程学院,西安710054 |
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| 摘 要： | 针对碟子沟风井场地边坡特征,在边坡典型位置的岩石与土层界面和软弱泥岩夹层处分别进行了原位剪切试验,获得了相应的抗剪强度指标。通过与滑带土相同工况下的室内试验强度指标对比,发现室内试验指标较原位剪切试验获得的内聚力和内摩擦角低,并分析了室内外试验结果差异的原因。试验研究表明,边坡岩土体的大型原位剪切试验对边坡稳定性分析和工程治理优化具有重要价值。
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| 关 键 词： | 边坡 原位剪切试验 室内剪切试验 抗剪强度 |
Study on the shear strength of rock and soil mass in slopes with in-situ tests |
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| Yang Zhe,Lin Dujun,Li Yinliang,Han Shudong.Study on the shear strength of rock and soil mass in slopes with in-situ tests[J].Geotechnical Investigation & Surveying,2012(8):18-22. |
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| Authors: | Yang Zhe Lin Dujun Li Yinliang Han Shudong |
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| Affiliation: | 1. China Coal Xi＇ an Design Engineering Co. ,Ltd, Xi＇ an 710054, China ; 2. School of Geology Engineering and Geomatics, Chang＇ an University, Xi＇an 710054, China) |
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| Abstract: | Based on the characteristics of the ventilating shaft slope in Diezigou, the in-situ shear tests were respectively carried out at the interface of the rock and soil layer and at the soft mudstone interlayer on the typical position of the slope, and the corresponding shear strength parameters were obtained. Compared with the cohesive force and the internal friction angle of the slide face soil in secondary shear and saturated state with laboratory shear tests and in-situ shear tests, the parameters of the landslide shear soil in secondary shear and saturated state from laboratory shear tests are lower than that from in-situ shear tests, and the reasons for the differences between the two kinds of tests are analyzed. It is shown that the in-situ shear tests are important to the slope stability analysis and the optimization of slope engineering treatment. |
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| Keywords: | slope in-situ shear test laboratory shear test shear strength |
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