作　　者： ; ; ;

机构地区： 西安科技大学地质与环境学院

出　　处： 《岩土工程技术》 2009年第3期127-129,共3页

摘　　要： 在边坡的稳定性综合评价中,评价体系的建立和评价因素权重的确定是关键问题。针对这种情况,建立一种新的黄土边坡稳定性综合评价模型。模型中将黄土边坡稳定性分为5个级别:稳定;较稳定;欠稳定;不稳定;极不稳定。以坡高、边坡总坡比、天然重度、内摩擦角、粘聚力为评价因子。针对评价因素权重确定中的困难,把熵权法运用到边坡的综合评价中,避免人为确定权重的主观性。通过实例的计算表明,该评价方法是合理、可行的,为边坡稳定的综合评价提供有益参考。 In the comprehensive assessment, the establishment of assessment system and the determination of weight are both very important and difficult. In view of this situation, a new loess slope stability evaluation model is established. Loess slope stability condition will be divided into state-level 5.. stability, more stable, less stability, instability, unstable in this model. The evaluation factors are height of slope, gradient of slope, severe, internal friction angle and cohesion. Aiming at the difficulty of defining weight value, the Entropy Weight Law is used in the comprehensive assessment,which avoids the subjectivity of artificial weight.. The engineering example indicates that the new assessment method is reasonable and feasible, and it provides a new idea for slope assessment.

关 键 词： 黄土边坡 稳定性 熵权法 综合评价

领　　域： [建筑科学] [建筑科学]