| 改进的随机-模糊方法在岩石力学参数取值中的应用 研究 |
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| 引用本文： | 袁泉, 陈剑平, 李晓茹, 王清, 高燕. 2008: 改进的随机-模糊方法在岩石力学参数取值中的应用 研究. 工程地质学报, 16(S1): 415-418. |
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| 作者姓名： | 袁泉 陈剑平 李晓茹 王清 高燕 |
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| 作者单位： | 1.吉林大学建设工程学院 长春 130026;;2.天津市地质调查研究院 天津 300191;;3.清华大学水利水电工程系 北京 100084 |
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| 摘 要： | 在工程中经常会遇到通过试验的方法求取岩土体参数特征值的问题,随机-模糊方法考虑了试验样本的随机性和模糊性,比一般的随机方法合理。传统的随机-模糊方法核心是采用隶属函数来反映模糊子集的不确定性,并在一定程度上降低了突变点的影响,但并未完全消除。本文在统计学和规范的基础上,合理地判别了突变点并进行了删除,实质上消除了隶属度很小的元素的干扰,并以工程实例证明了改进后的随机-模糊方法是合理的。
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| 关 键 词： | 岩石力学参数 随机-模糊方法 隶属函数 突变性 |
STUDY ON APPLICATION OF IMPROVED RANDOM-FUZZY METHOD FOR DETERMINING THE MECHANICAL PARAMETERS OF ROCK |
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| YUAN Quan, CHEN Jianping, LI Xiaoru, WANG Qing, GAO Yan. 2008: STUDY ON APPLICATION OF IMPROVED RANDOM-FUZZY METHOD FOR DETERMINING THE MECHANICAL PARAMETERS OF ROCK. JOURNAL OF ENGINEERING GEOLOGY, 16(S1): 415-418. |
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| Authors: | YUAN Quan CHEN Jianping LI Xiaoru WANG Qing GAO Yan |
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| Affiliation: | 1.College of Construction Engineering, Jilin University, Changchun 130026;;2.Tianjin Institute of Geological Survey, Tianjin 300191;;3.Department of Hydraulic Engineering, Tsinghua University, Beijing 100084 |
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| Abstract: | It is normal to get parameters of rock mass through tests in engineering. Due to consideration of randomicity and illegibility, random-fuzzy method is more reasonable than other usual methods. The core of conventional random-fuzzy method is reflecting the uncertainties by membership function. Though it does not eliminate the influence of mutation points, it decreases that in some extent. In this paper, based on statistics and criterions, the mutation points are chosen and deleted by a more reasonable method, which eliminates the points that have small membership degree. Then, this method is certified through a project. |
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| Keywords: | The mechanical parameters of rock Random-fuzzy method Membership function Mutation character |
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