基于模糊评判法的黄土地区铁路边坡稳定性分析
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国家自然科学基金项目"列车长持时振动引起高速铁路路基击实黄土振陷研究"(4097219); 高等学校博士点学科点专项科研基金"列车长持时振动引起高速铁路地基黄土振陷、液化和滑移等灾害链及其防治研究"(20116101130001); 西北大学研究生自主创新基金(YZZ13010)


Analysis on Slope Stability Along Railway in Loess Area Based on Fuzzy Evaluation Method
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    [目的] 建立黄土地区铁路沿线边坡稳定性综合评判模型,评价山西省中南部通道DK29+860处黄土边坡的稳定性。[方法] 在综合分析黄土地区铁路沿线边坡各种影响因素的基础上,选取7个评价因子,按照稳定、次稳定、不稳定和极不稳定的边坡稳定性的分类标准,并利用信息扩散原理,与FLACR数值模拟软件计算结果进行对比。[结果] 运用模糊评判法评判该边坡处于次稳定状态,使用FLACR数值模拟软件模拟求解得该边坡稳定系数为1.18,两者评价结果基本一致。[结论] 该评价方法真实可靠,能够准确地评价边坡的稳定性。

    Abstract:

    [Objective] To establish the comprehensive evaluation model for the slope stability ultimately in loess region along the railways and to evaluate the loess slope stability of the channel DK29 + 860 in Mid-southern Shanxi Province. [Methods] Based on the comprehensive analysis of various influence factors about loess slope along the railway, seven assessment factors were selected. According to the classification criteria of slope stability(stable, less stable, unstable and extremely unstable), the principle of information diffusion was adopted to compare the seven factors with the results calculated by of the FLACR numerical simulation. [Results] The slope was in a steady state evaluated with fuzzy judgment method, the slope stability coefficient was 1.18 with the FLACR numerical simulation software. The two conclusions were basically identical. [Conclusion] Fuzzy evaluation method was reliable, it can evaluate the slope stability accurately in loess region along railways.

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盖海龙,王家鼎,王建斌,谢婉丽.基于模糊评判法的黄土地区铁路边坡稳定性分析[J].水土保持通报,2015,35(3):157-161

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  • 收稿日期:2014-04-22
  • 最后修改日期:2014-04-29
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  • 在线发布日期: 2016-04-05
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