基于安全监测信息的岩石高边坡稳定性评价

Stability evaluation of high rock slope based on safety monitoring information

监测数据是所有因素综合作用的结果,从中挖掘出隐含的规律特点,全面准确地评价出边坡的稳定状态,是目前高边坡研究的热点和难点.为此,采用改进的物元可拓理论,将研究对象、评价指标和指标量值融为一体,依据长期的监测资料,建立锦屏一级水电站左岸边坡的多层次多指标安全评价模型.综合考虑评价因素间的矛盾,定性与定量的共存、划分界线模糊等问题,层层递进由局部区域到整体详细分析.研究结果表明,大块体处于稳定状态,最大限度地利用了安全监测资料,有效地解决了复杂高边坡的多属性、不相容、定性与定量综合评价问题,全面细致地刻化了稳定状态,实现了从静态到长期的动态化分析,并为类似工程提供了借鉴.

The monitoring data are the results of comprehensive action of all factors, and the focus and difficult issue for the present study on high slope is to find out the implicit rule and evaluate the stable state accurately and comprehensively from above-mentioned monitoring data. Therefore, the research objects, evaluation indexes and index values were integrated together with the improved matter-element extenics theory. Based on the long-term monitoring information, the multi-level and multi-index safety evaluation model for the left bank slope of Jinping I Level Hydropower Station was established. With the comprehensive consideration of problems concerning the contradiction between the evaluation factors, the qualitative and quantitative coexistence and the unclear crossing boundaries, the gradationally progressive analysis was performed from local to whole areas. The research results show that the bulk mass is in a stable state, the safety monitoring information is fully used, and the multi-attribute and incompatible as well as the comprehensive qualitative and quantitative evaluation problems in the complex high slope are effectively solved. Furthermore, the steady state is described comprehensively and meticulously, the dynamic analysis from static state to long-term is realized, and the research can provide some references for the similar projects.