| 岩土体力学参数空间分布下的滑坡稳定性数值计算方法 |
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| 引用本文： | 吴韩,简文星,肖迪,檀康.岩土体力学参数空间分布下的滑坡稳定性数值计算方法[J].工程地质学报(英文版),2015,23(1):135-139. |
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| 作者姓名： | 吴韩 简文星 肖迪 檀康 |
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| 作者单位： | 1.中国地质大学教育部长江三峡库区地质灾害研究中心 武汉 430074; |
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| 基金项目： | 国家自然科学基金项目(41272306)资助． |
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| 摘 要： | 滑坡岩土体强度参数具有空间变异性,采用统一强度参数进行数值建模计算不能很好地体现这一客观性质对结果的影响.本文提出一种考虑岩土体力学参数空间分布下的滑坡数值建模方法,通过对滑坡地形地貌和有限的勘察数据进行控制边界下的插值补充,形成参数分布云图,结合Visual Basic和FISH编程将差异分布的参数加载到数值网格模型中,使理论模型和实际更接近.算例分析结果表明该方法可行,能更准确显示出滑体变形破坏部位及特征,对后期变形监测和治理有指导意义.
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| 关 键 词： | 滑坡 稳定性 数值模拟 力学参数 空间分布 |
| 收稿时间： | 2013-10-12 |
NUMERICAL MODELING METHOD FOR SLOPE STABILITY UNDER VARIABLE DISTRIBUTION OF STRENGTH PARAMETERS |
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| WU Han,JIAN Wenxing,XIAO Di,TAN Kang.NUMERICAL MODELING METHOD FOR SLOPE STABILITY UNDER VARIABLE DISTRIBUTION OF STRENGTH PARAMETERS[J].Journal of Engineering Geology,2015,23(1):135-139. |
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| Authors: | WU Han JIAN Wenxing XIAO Di TAN Kang |
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| Institution: | 1.Three Gorges Research Center for Geo-hazards, Ministry of Education, China University of Geosciences, Wuhan 430074;2.China Communications Construction Company Second Highway Consultants Co. Ltd., Wuhan 430056 |
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| Abstract: | Strength parameters of slope rock and soil can have spatial variability. Unified strength parameters for numerical modelling of slope stability can't reflect the effect of this nature in the calculation results. A new method of numerical simulation for slope stability is proposed in this paper. It takes into account the spatial variable distribution of the strength parameters in the slope. Using the topography and survey data, the spatial variation of the strength parameters can be reformed into a cloud contour map. With the help of Visual Basic programming and FISH language, the contour data of strength parameters are added to the numerical simulation model. Simulation results show that the method is workable and is more accurate in indicating the deforming location and situation, with has a guiding significance on landslide deformation monitoring and treatment. |
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| Keywords: | Landslide Stability Numerical Simulation Mechanical parameters Spatial distribution |
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