基于模糊因素的岩质边坡地震稳定性多模型组合评价
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摘要
岩质边坡地震稳定性评价是岩土边坡地震失稳防治的基础工作,针对评价过程中评价因素的多源模糊性,借鉴工程可变模糊集理论,将模糊可变评价模型应用于岩质边坡地震稳定性评价中。综合考虑岩质边坡内在结构和外部自然条件,选取岩土体特性、新构造运动特征、坡高、坡角、年均降雨量和场地地震烈度6个指标作为评价指标体系并建立等级标准;将改进熵权算法引入该模型中,利用指标实际数据离散性求权重;通过改变模糊可变评价模型参数对岩质边坡地震稳定性进行线性与非线性组合评价,并将均值作为最终评价结果。将该方法应用于天然边坡与路堑边坡实例中,结果表明,模糊可变评价模型评价结果合理、客观,具有更高的可靠性与稳定性,为岩质边坡地震稳定性评价工作提供了一种新的研究方法与思路。
Evaluation of seismic stability of rock slopes is the important foundation for prevention of seismic unstability of rock and soil slopes.In view of the multi-source and fuzzy characteristics in evaluation process,by using engineering variable fuzzy set theory for reference,fuzzy variable evaluation model is applied to evaluate the seismic stability of rock slopes.First,by comprehensive consideration of the rock slopes internal structure and external natural conditions,six parameters including the characteristics of the geotechnical body,the characteristics of the neotectonics,slope height,slope angle,the annual average precipitation,site seismic intensity are selected as the indices for evaluation index system and established rating standard,then the weights of evaluation factors in the model are obtained from the index practical data discreteness by using improved entropy weight method;finally,by changing the fuzzy variable evaluation model parameters to evaluated seismic stability of rock slopes by linear and nonlinear,and obtained stability level by mean value.The method has been applied to natural slope and cutting slope instances.The results show that the fuzzy variable evaluation model results are reasonable and objective;and they have better reliability and stability so as to provide a new research method and idea for seismic stability of rock slopes.
Evaluation of seismic stability of rock slopes is the important foundation for prevention of seismic unstability of rock and soil slopes.In view of the multi-source and fuzzy characteristics in evaluation process,by using engineering variable fuzzy set theory for reference,fuzzy variable evaluation model is applied to evaluate the seismic stability of rock slopes.First,by comprehensive consideration of the rock slopes internal structure and external natural conditions,six parameters including the characteristics of the geotechnical body,the characteristics of the neotectonics,slope height,slope angle,the annual average precipitation,site seismic intensity are selected as the indices for evaluation index system and established rating standard,then the weights of evaluation factors in the model are obtained from the index practical data discreteness by using improved entropy weight method;finally,by changing the fuzzy variable evaluation model parameters to evaluated seismic stability of rock slopes by linear and nonlinear,and obtained stability level by mean value.The method has been applied to natural slope and cutting slope instances.The results show that the fuzzy variable evaluation model results are reasonable and objective;and they have better reliability and stability so as to provide a new research method and idea for seismic stability of rock slopes.
引文
[1]刘红帅,薄景山,刘德东.岩土边坡地震稳定性评价方法研究进展[J].防灾科技学院学报,2007,9(3):20-27.LIU Hong-shuai,BO Jing-shan,LIU De-dong.Development on study of seismic stability evaluationmethods of rock-soil slopes[J].Journal of Institute ofDisaster-Prevention Science and Technology,2007,9(3):20-27.
[2]孙进忠,陈祥,王余庆.岩土边坡地震崩滑的三级评判预测[J].地震研究,2004,27(3):256-264.SUN Jin-zhong,CHEN Xiang,WANG Yu-qing.Theestimation and prediction of the slide and collapse of soiland rock slope triggered by earthquakes with threesteps[J].Journal of Seismological Research,2004,27(3):256-264.
[3]王余庆,高艳平,辛鸿波.用灰色聚类方法预测边坡地震稳定性研究[J].工业建筑学报,2002,32(6):44-47.WANG Yu-qing,GAO Yan-ping,XIN Hong-bo.Aresearch on prediction of seismic stability of slopes bygrey clustering method[J].Journal of IndustrialConstruction,2002,32(6):44-47.
[4]王余庆,辛鸿波,高艳平.预测岩土边坡地震崩滑的综合指标法[J].岩土工程学报,2001,23(3):311-314.WANG Yu-qing,XIN Hong-bo,GAO Yan-ping.Studyon comprehensive index method for predictingearth-quake-induced landslides[J].China Journal ofGeotechnical Engineering,2001,23(3):311-314.
[5]文畅平,杨果林.基于属性数学理论的岩土边坡地震稳定性评价[J].中国铁道科学学报,2010,31(5):8-14.WEN Chang-ping,YANG Guo-lin.The seismic stabilityevaluation of the rock and soil slope based on the attributemathematical theory[J].Journal of China RailwayScience,2010,31(5):8-14.
[6]高科,李夕兵,宫凤强.基于突变级数法的边坡地震稳定性综合评价[J].地下空间与工程学报,2009,5(2):406-412.GAO Ke,LI Xi-bing,GONG Feng-qiang.Integrativeevaluation on seismic stability of slopes based oncatastrophe progression method[J].Chinese Journal ofUnderground Space and Engineering,2009,5(2):406-412.
[7]陈守煜.工程可变模糊集理论与模型—模糊水文水资源学数学基础[J].大连理工大学学报,2005,45(2):308-312.CHEN Shou-yu.Theory and model of engineeringvariable fuzzy set mathematical basis for fuzzy hydrologyand water resources[J].Journal of Dalian University ofTechnology,2005,45(2):308-312.
[8]周惠成,张丹.可变模糊集理论在旱涝灾害评价中的应用[J].农业工程学报,2009,25(9):56-61.ZHOU Hui-cheng,ZHANG Dan.Assessment model ofdrought and flood disasters with variable fuzzy settheory[J].Transactions of the Chinese Society ofAgricultural Engineering,2010,10(1):38-42.
[9]张业成,胡景江,张春山.中国地质灾害危险性分析与灾变区划[J].地质灾害与环境保护学报,1995,16(3):1-13.ZHANG Ye-cheng,HU Jing-jiang,ZHANG Chun-shan.Hazadous analysis and zonation of China geologicaldisasters[J].Journal of Geological Hazards andEnvironment Preservation,1995,16(3):1-13.
[10]石华旺,高爱坤,牛俊萍.一种基于熵权的未确知测度评价方法及应用[J].统计与决策,2008,(12):162-164.SHI Hua-wang,GAO Ai-kun,LIU Jun-ping.A methodbased on entropy weight of unascertained measureevaluation methods and application[J].Statistics andDecision,2008,(12):162-164.
[11]孟宪萌,胡和平.基于熵权的集对分析模型在水质综合评价中的应用[J].水利学报,2009,40(3):257-262.MENG Xian-meng,HU He-ping.Application of set pairanalysis model based on entropy weight to comprehensiveevaluation of water quality[J].Journal of HydraulicEngineering,2009,40(3):257-262.
[12]尤天慧,樊治平,俞竹超.不确定性多属性决策中确定属性熵权的一种方法[J].东北大学学报,2004,25(6):598-601.YOU Tian-hui,FAN Zhi-ping,YU Zhu-chao.Method ofdetermining entropy weights on attributes in uncertainmultiple att ribute decision making[J].Journal ofNortheastern University,2004,25(6):598-601.
[2]孙进忠,陈祥,王余庆.岩土边坡地震崩滑的三级评判预测[J].地震研究,2004,27(3):256-264.SUN Jin-zhong,CHEN Xiang,WANG Yu-qing.Theestimation and prediction of the slide and collapse of soiland rock slope triggered by earthquakes with threesteps[J].Journal of Seismological Research,2004,27(3):256-264.
[3]王余庆,高艳平,辛鸿波.用灰色聚类方法预测边坡地震稳定性研究[J].工业建筑学报,2002,32(6):44-47.WANG Yu-qing,GAO Yan-ping,XIN Hong-bo.Aresearch on prediction of seismic stability of slopes bygrey clustering method[J].Journal of IndustrialConstruction,2002,32(6):44-47.
[4]王余庆,辛鸿波,高艳平.预测岩土边坡地震崩滑的综合指标法[J].岩土工程学报,2001,23(3):311-314.WANG Yu-qing,XIN Hong-bo,GAO Yan-ping.Studyon comprehensive index method for predictingearth-quake-induced landslides[J].China Journal ofGeotechnical Engineering,2001,23(3):311-314.
[5]文畅平,杨果林.基于属性数学理论的岩土边坡地震稳定性评价[J].中国铁道科学学报,2010,31(5):8-14.WEN Chang-ping,YANG Guo-lin.The seismic stabilityevaluation of the rock and soil slope based on the attributemathematical theory[J].Journal of China RailwayScience,2010,31(5):8-14.
[6]高科,李夕兵,宫凤强.基于突变级数法的边坡地震稳定性综合评价[J].地下空间与工程学报,2009,5(2):406-412.GAO Ke,LI Xi-bing,GONG Feng-qiang.Integrativeevaluation on seismic stability of slopes based oncatastrophe progression method[J].Chinese Journal ofUnderground Space and Engineering,2009,5(2):406-412.
[7]陈守煜.工程可变模糊集理论与模型—模糊水文水资源学数学基础[J].大连理工大学学报,2005,45(2):308-312.CHEN Shou-yu.Theory and model of engineeringvariable fuzzy set mathematical basis for fuzzy hydrologyand water resources[J].Journal of Dalian University ofTechnology,2005,45(2):308-312.
[8]周惠成,张丹.可变模糊集理论在旱涝灾害评价中的应用[J].农业工程学报,2009,25(9):56-61.ZHOU Hui-cheng,ZHANG Dan.Assessment model ofdrought and flood disasters with variable fuzzy settheory[J].Transactions of the Chinese Society ofAgricultural Engineering,2010,10(1):38-42.
[9]张业成,胡景江,张春山.中国地质灾害危险性分析与灾变区划[J].地质灾害与环境保护学报,1995,16(3):1-13.ZHANG Ye-cheng,HU Jing-jiang,ZHANG Chun-shan.Hazadous analysis and zonation of China geologicaldisasters[J].Journal of Geological Hazards andEnvironment Preservation,1995,16(3):1-13.
[10]石华旺,高爱坤,牛俊萍.一种基于熵权的未确知测度评价方法及应用[J].统计与决策,2008,(12):162-164.SHI Hua-wang,GAO Ai-kun,LIU Jun-ping.A methodbased on entropy weight of unascertained measureevaluation methods and application[J].Statistics andDecision,2008,(12):162-164.
[11]孟宪萌,胡和平.基于熵权的集对分析模型在水质综合评价中的应用[J].水利学报,2009,40(3):257-262.MENG Xian-meng,HU He-ping.Application of set pairanalysis model based on entropy weight to comprehensiveevaluation of water quality[J].Journal of HydraulicEngineering,2009,40(3):257-262.
[12]尤天慧,樊治平,俞竹超.不确定性多属性决策中确定属性熵权的一种方法[J].东北大学学报,2004,25(6):598-601.YOU Tian-hui,FAN Zhi-ping,YU Zhu-chao.Method ofdetermining entropy weights on attributes in uncertainmultiple att ribute decision making[J].Journal ofNortheastern University,2004,25(6):598-601.
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