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ID:36413962
大小:6.98 MB
页数:84页
时间:2019-05-10
《三峡水库运行过程中重庆境内水库诱发地震研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、重庆交通大学硕士学位论文三峡水库运行过程中重庆境内水库诱发地震研究姓名:赵鹏申请学位级别:硕士专业:水工结构工程指导教师:唐红梅;陈洪凯20090401ABSTRACTReservoirinducedseismicityisinducedbythereservoir,evensomeplacesexpedencefewornoearthquakesbefore.T11isphenomenonwidelyoccursinmanyplacesoftheworld,thereisobviousdifferenceonthe
2、seismicactivitylevelbetweenreservoirinducedseismicityandlocalearthquakesthatbeforestoringwater,andreservoirinducedseismicityhasitsowncharacteristicscomparedwithtectonicearthquakes.Atacertainperiodoftime,especiallyintheinitialimpoundmentperiod,thereisagoodrelati
3、onshipbetweenseismicactivitiesandwaterlevels.WiththecompletionandimpoundmentoftheThreeGorgesReservoir,therewouldbeenormouswaterbodyanddramaticchangesinwaterlevel.Thischangewouldbreakthebalanceoftheinherenttectonicstressfield,leadtonewfaultsactiveorrevivetheoldo
4、nesandsomegeologicaldisasters,suchasseismicityandnewenvironmentalproblems.SothestudyofreservoirinducedseismicityoftheThreeGorgesReservoirinChongqinghasimportantsignificance,notonlysocial,buttheoretical.Inthisstudy,choosetheThreeGorgesReservoirRegionofChongqinga
5、stheresearchobject,tostudythemechanismsofreservoirinducedseismicity..nleresultsofthemaincontentsareasfollows:(1)Throughsummarizingtheresearchpaper,learnthehistoryandthestatusquoonreservoirinducedseismicity,basedonthevaluabletheoriesandmethods,outlinetheclassifi
6、cationsandcharacteristicsofthereservoirinducedseismicity.Onengineeringgeology,thegeologicalstructureandgeomorphologicalinformationofChongqingreservoirregionanditssurroundingregionarecollectedandsorted,makesurethegeologicalstructureandthepotentialseismogenicfaul
7、tgeometry.(2)Ontheseismology,analysethecharacteristicsoftheseismicity,aswellastherelationshipswiththewaterlevelbeforeandaftertheimpoundmentoftheThreeGorgesReservoir,andstudythespatialandtemporaldistributioncharacteristicsandtheoccur—encemechanismofreservoirindu
8、cedseismicity,nomatterinlargescaleorsmall.(3)Dividetheloadofthereservoirinducedseismicityintostressload(stressofstaticwaterbody,seepagepressureandtectonicstress,etc)andnon—s
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