模糊综合评判法分析地震滑坡启程能量转换

›› 2012, Vol. 33 ›› Issue (S1): 297-302.

模糊综合评判法分析地震滑坡启程能量转换

顾成壮¹，杨鸿发²，胡卸文^{1, 3}，曾锦秀¹，罗刚¹

1. 西南交通大学地球科学与环境工程学院，成都 610031；2. 四川省地质矿产勘查开发局四〇五地质队，成都 611830； 3. 西南交通大学抗震工程技术四川省重点实验室，成都 610031

收稿日期:2011-09-16 出版日期:2012-09-11 发布日期:2012-09-21
作者简介:顾成壮，男，1986年生，博士研究生，主要从事工程地质、环境地质方面的研究工作
基金资助:
国家自然科学基金资助项目（No. 40972175）；NSFC-云南联合基金重点项目资助（No. U1033601）；中央高校基本科研业务费专项资金资助（No. SWJTU11ZT14）

Analysis of energy conversion of earthquake-induced landslide based on fuzzy synthetic evaluation

GU Cheng-zhuang¹, YANG Hong-fa², HU Xie-wen^{1, 3}, ZENG Jin-xiu¹, LUO Gang¹

1. School of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China; 2. 405 Geological Team, Geology and Mineral Development Bureau in Sichuan, Chengdu 611830, China; 3. Aseismic Engineering Technology Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu 610031, China

Received:2011-09-16 Online:2012-09-11 Published:2012-09-21

摘要/Abstract

摘要： 地震滑坡启程能量转化分析对于后期滑坡动力学研究极为重要，因其影响因素较多，具有模糊性，目前还没有准确的定量计算公式。模糊综合评判法分析模糊问题具有明显的优势，能够综合考虑各种因素给出总体评价。选取地震加速度、岩体结构类型、控制性结构面特征、岩体完整程度、地层岩性、地下水、不利结构面与临空面的夹角7个因素作为地震滑坡启程剧动能量转换大小划分的主要因素，详细分析各个因素对能量转化的影响。采用逻辑分区法确定隶属函数，应用模糊层次分析法（FAHP）确定各因素的权重。在此基础上，运用模糊数学综合评判方法得出能量转化率等级，半定量地确定能量转化率大小。以东河口地震滑坡为例，应用模糊综合评判法对其启程能量转换分析结果客观合理，表明该方法是科学可行的，在同类理论研究中可以借鉴。

关键词: 地震滑坡启程, 隶属函数, 模糊层次分析, 模糊综合评判, 能量转化率

Abstract: The analysis of energy conversion during the set-out process of seismic landslide is very important for the late landslide kinetic theoretical studies. Because the analysis impacted by many complex influencing factors is fuzzy, there is no accurate quantitative calculation formula for energy conversion rate. Fortunately, the fuzzy synthetic evaluation method has obvious advantage in the analysis of fuzzy problems, which can take various complex factors into account to make an overall assessment. Therefore, the method can be adopted to determine the grade of energy conversion rate. After analyzing the effect of every factor on the energy conversion rate in detail, seven factors, such as seismic acceleration, structure of rock mass, characteristics of controlling structural planes, integrity of rock mass, stratum lithology, groundwater, and angle between the unfavourable interfaces and free surface, are selected as the major factors. Using fuzzy analytic hierarchy process, the important degree of the above factors characterized by the influencing weight is obtained. And the logic classification method is adopted to determine the membership function. On this basis, the fuzzy synthetic evaluation is then used to draw the grade of energy conversion rate with its value determined semi-quantitatively. The proposed method is applied to study the Donghekou earthquake-induced landslide; and the obtained results meet the objective reality, so as to indicate that the method is scientific and feasible. Consequently, it can be used for reference in other similar theoretical researches.

Key words: set-out of earthquake-induced landslide, membership function, fuzzy analytic hierarchy process, fuzzy synthetic evaluation , energy conversion rate

中图分类号:

P 642

顾成壮，杨鸿发，胡卸文，曾锦秀，罗刚 . 模糊综合评判法分析地震滑坡启程能量转换[J]. , 2012, 33(S1): 297-302.

GU Cheng-zhuang , YANG Hong-fa , HU Xie-wen , ZENG Jin-xiu , LUO Gang . Analysis of energy conversion of earthquake-induced landslide based on fuzzy synthetic evaluation[J]. , 2012, 33(S1): 297-302.

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