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基于FAHP-可拓学模型的倾倒岩体质量评价

田文,张发明 ,李雨坤   

  • 出版日期:2017-03-29 发布日期:2017-03-29

Evaluation of toppling rock quality based on FAHP- extenics model

TIAN Wen, ZHANG Faming, LI Yukun   

  • Online:2017-03-29 Published:2017-03-29

摘要: 为了解决倾倒变形岩体质量评价的难题,综合运用了可拓学理论中的物元概念与模糊层次分析法。从苗尾水电站左坝肩9号平硐水平位置取样确定不同深度倾倒变形岩体的质量,根据现场实验数据以及已有的岩体质量评价方法,得出倾倒变形岩体等级标准及评价指标的量值。运用层次分析法,并加入模糊数学的理论计算得出更加合理的各指标的权重系数,并根据可拓学理论构造经典物元、节域和可拓集合中的关联函数,建立倾倒变形岩体质量评价的模糊层次分析法-可拓学模型。研究表明,该模型比RMR得到的样本质量评级略低,能考虑倾倒岩体的特征,较好地反映倾倒变形岩体质量。

关键词: 可拓学, 模糊层次分析法, 倾倒变形岩体, 岩体质量评价

Abstract: In order to solve the problem of quality evaluation of toppling rock mass, the concept of matter-element in extenics theory and fuzzy analytic hierarchy process were comprehensively employed to determine the quality of the rock mass at different depth through samples in the horizontal position of No.9 adit at the left abutment in Miaowei Hydropower Station. According to the field experimental data and the existing rock mass quality evaluation method, the safety grade and the value of the evaluation indexes were obtained. The weight factors of the indexes were determined by FAHP incorporating with fuzzy mathematics. Based on the classical matter-element, joint domain, and correlation function in extentics theory, the FAHP-extenics model of toppling rock mass quality evaluation was built. The research shows: the sample quality grade evaluated by FAHP-extenics model is lower than that of RMR; FAHP-extentics model is able to consider the characteristics of toppling rock mass and better reflect the rock quality.

Key words: extentics, FAHP, toppling rock, rock quality evaluation