基于安全监控的岩石高边坡稳定可拓评价研究
首发时间:2010-07-14
摘要:岩石高边坡的稳定性受地质、施工、降雨等众多因素影响,具有未确知性、随机性、模糊性、可变性等特点。因此,边坡稳定性问题是一个典型的非线性问题,与其影响因素之间存在着高度非线性和复杂性,很难用简单的力学、数学模型描述,给边坡稳定状况评估带来很大困难。而安全监测资料恰恰是这多种影响因素的综合体现,因此根据安全监测资料评价边坡稳定,建立稳定评估模型,不仅充分利用了多种监测资料,而且得出的评估结果合理可靠。但如何根据安全监测资料科学构建边坡稳定状况评估体系、合理量化评估指标、综合考虑各种具有不同性质的定性、定量的相关信息等问题,是边坡稳定安全评价值得深入研究的问题。可拓学正是研究事物的可拓性以及开拓的规律与方法,是一种新型的评价方法。本文应用熵权可拓评估理论,基于多种监测信息,建立边坡稳定的综合评价模型,工程实例应用表明,该评价方法具有良好的工程应用价值。
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Research of the extension evaluation of high rock slope stability based on safety monitoring
Abstract: Due to effect of various factors such as geology, constructing and raining etc, the stability of high rock slope engineering is characterized by uncertainness, random, fuzziness, and alterableness. Therefore, it is typical nonlinear and hard to estimate by using simple mechanical and/or mathematic model. This brings very big difficulty to the stability evaluation. But the safety monitoring data is the synthetical embodiment of the many factors. So, building the stability evaluation model of the slope based on safety monitoring not only make the best of the safety monitoring data, but also exactly evaluate the project. But how to build the stability evaluation model based on the safety monitoring、rightly quantify the evaluation indexes and think the integration of qualitative and quantitative information of different indexes need to lucubrate. The paper proposed to solve this problem by the extension theory which research things\\\\\\\\\\\\\\\' extension nature. The matter model of slope stability evaluation based on the safety monitoring is build. Which calculate the relational degree of the comprehensive evaluation index by matter-element transform and compute the weight coefficients using entropy weight method. The paper applies the model to evaluate the stability of high rock slope and the project application results reveal that this model has good real application value.
Keywords: safety monitoring slope stability comprehensive evaluation extension theory entropy weight
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