武汉地区地震效应影响研究
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摘要
虽然武汉市地震影响及地震危险性的水平较低 ,强震也不是武汉市工程地质环境的主要问题 ,但在城市生命线工程和高层超高层建筑方面必须考虑单体抗震设防。而且 ,随着武汉市城市建设的不断发展 ,地震效应影响逐渐成为武汉市工程地质环境评价的一个重要因子。文章在分析了武汉地区地震动衰减规律 ,进行了地震危险性评价 ,深入研究了各土层动力参数性质的基础上 ,指出武汉地区地震地面破坏主要存在砂土液化和软土震陷两种型式及各自可能的空间分布
The level of seismic effect and earthquake risk is rather low, and far intense earthquake can not be a main geological problem with engineerng projects in Wuhan area, but the earthquake resistance measures must be considerded in constructing urban lifeline and superior buildings. With the unceasing social-economic development in Wuhan, the influence of earthquake becomes gradually a rather important factor in engineering-geological environment evaluation. After the research on seismic ground motion attenuation regularities we make an evaluation of earthquake risk and analyze the dynamic parameters of soil layers in Wuhan area, and then point out there exist two main types of ground failures by earthquake in Wuhan area: liquefaction of sandy soil and collapse of soft soil layer, and their possible spatial distribution is put forward.
The level of seismic effect and earthquake risk is rather low, and far intense earthquake can not be a main geological problem with engineerng projects in Wuhan area, but the earthquake resistance measures must be considerded in constructing urban lifeline and superior buildings. With the unceasing social-economic development in Wuhan, the influence of earthquake becomes gradually a rather important factor in engineering-geological environment evaluation. After the research on seismic ground motion attenuation regularities we make an evaluation of earthquake risk and analyze the dynamic parameters of soil layers in Wuhan area, and then point out there exist two main types of ground failures by earthquake in Wuhan area: liquefaction of sandy soil and collapse of soft soil layer, and their possible spatial distribution is put forward.
引文
[1] 国家地震局.中国地震烈度区划图概论[M ].地震出版社,1996.ChinaSeismologicalBureau.ThegeneralityofseismicintensityzoneinChina.SeismologicalPress,1966.
[2] 湖北省地震局,武汉市地震区划研究[A].中国地震区划学术讨论会论文集[C].地震出版社,1998.SeismologicalengineeringinstituteofHubeiprovince.ThereportofseismiczoneinWuhancity.SeismologicalPress,1998.
[3] 刘五洲,车用太.长江三峡水库诱发地震地下水动态监测井网建设[J].工程地质学报,2002,10(3):189～192.LiuWuzhou,CheYongtai.Setupofgroundwatermonitoringnet workontheChangjiangThree-gorgesreservoirinducedearth quakes.JournalofEngineeringgeology,2002,10(3):189～192
[4] 高孟潭.基于泊松分布的地震烈度发生概率模型[J].中国地震,1996,12(2):195～201.GaoMengtan.Occurrenceprobabilitymodelofearthquakeintensi tybasedonthePoissondistribution.EarthquakeresearchinChi na,1996,12(2):195～201.
[5] 曾心传,秦小军.土层对地震的随即反应分析[J].地震工程与工程振动,1998,18(3):27～38.ZengXinchuan,QinXiaojun.Thereandomresponseanalysisofsoillayersinearthquake.Earthquakeengineeringandengineeringvibration,1998,18(3):27～38.
[6] 胡聿贤,陈汉尧.关于地震危险性评价中不确定性的统一分析[J].地震学报,1994,16(4):511～518.HuYuxian,ChenHanyao.Onunifiedanalysisofuncertaintyinseismichazardassessment.Seismologicaltransaction,1994,16(4):511～518.
[7] 湖北省区域地质矿产调查所.遥感技术在武汉市区域构造稳定性评价中的应用研究[P],1989.ArealgeologyinstituteofHubeiprovince.ThereportoftheremotesensinginthestabilityassessmentforthearealgeologytectonicsinWuhan[P],1989.
[8] 门玉明,黄义,刘增荣.场地土的随机地震反应分析[J].工程地质学报,2001,9(1):68～73.MenYuming,HuangYi.LiuZengrong.Therandomseismicre sponseanalysisofsoilinsite.Journalofengineering geology,2001,9(1):68～73.
[9] 建筑抗震设计规范(GB500112001)[S].北京:中国建筑工业出版社,2001.Codeforseismicdesignofbuliding.Beijing:Chinabuildingindus trialpress,2001.
[2] 湖北省地震局,武汉市地震区划研究[A].中国地震区划学术讨论会论文集[C].地震出版社,1998.SeismologicalengineeringinstituteofHubeiprovince.ThereportofseismiczoneinWuhancity.SeismologicalPress,1998.
[3] 刘五洲,车用太.长江三峡水库诱发地震地下水动态监测井网建设[J].工程地质学报,2002,10(3):189～192.LiuWuzhou,CheYongtai.Setupofgroundwatermonitoringnet workontheChangjiangThree-gorgesreservoirinducedearth quakes.JournalofEngineeringgeology,2002,10(3):189～192
[4] 高孟潭.基于泊松分布的地震烈度发生概率模型[J].中国地震,1996,12(2):195～201.GaoMengtan.Occurrenceprobabilitymodelofearthquakeintensi tybasedonthePoissondistribution.EarthquakeresearchinChi na,1996,12(2):195～201.
[5] 曾心传,秦小军.土层对地震的随即反应分析[J].地震工程与工程振动,1998,18(3):27～38.ZengXinchuan,QinXiaojun.Thereandomresponseanalysisofsoillayersinearthquake.Earthquakeengineeringandengineeringvibration,1998,18(3):27～38.
[6] 胡聿贤,陈汉尧.关于地震危险性评价中不确定性的统一分析[J].地震学报,1994,16(4):511～518.HuYuxian,ChenHanyao.Onunifiedanalysisofuncertaintyinseismichazardassessment.Seismologicaltransaction,1994,16(4):511～518.
[7] 湖北省区域地质矿产调查所.遥感技术在武汉市区域构造稳定性评价中的应用研究[P],1989.ArealgeologyinstituteofHubeiprovince.ThereportoftheremotesensinginthestabilityassessmentforthearealgeologytectonicsinWuhan[P],1989.
[8] 门玉明,黄义,刘增荣.场地土的随机地震反应分析[J].工程地质学报,2001,9(1):68～73.MenYuming,HuangYi.LiuZengrong.Therandomseismicre sponseanalysisofsoilinsite.Journalofengineering geology,2001,9(1):68～73.
[9] 建筑抗震设计规范(GB500112001)[S].北京:中国建筑工业出版社,2001.Codeforseismicdesignofbuliding.Beijing:Chinabuildingindus trialpress,2001.
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