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基于突变级数法的滑坡稳定性评价

DOI: 10.13577/j.jnd.2015.0209, PP. 68-73

Keywords: 滑坡稳定性,评价,突变级数法,预测

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Abstract:

基于突变级数法,建立了滑坡稳定性评价和预测模型.在相关研究的基础上,建立了滑坡稳定性评价指标的递阶层次结构,以滑带强度、滑面特征、滑坡外形特征及其近期活动等4个内部影响因素,以及暴雨作用、河流作用、滑坡后缘加载、人工活动和地震作用等5个外部影响因素,作为滑坡稳定性识别的判别因子;以22组典型滑坡工程案例作为训练样本,建立了滑坡稳定性评价模型和突变级数判据;然后利用6组典型滑坡工程实际案例作为测试样本,检验了模型的可行性和可靠性.研究表明,突变级数法对滑坡稳定性的识别结果与实际情况吻合,并与系统加权聚类分析法、判别分析法等的识别结果一致.

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