三峡库区巴东库岸段水库地震迁移规律
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摘要
自三峡水库蓄水以来,三峡库区巴东县库岸段发生上万次与水库蓄水相关的水库地震,最大震级5.1级。近几年发表相关论文50篇左右,侧重于水库地震的震源机制解、水库地震与坝前水位的关系、单个较大型水库地震以及微地震群的成因机理问题,对水库地震时间上的周期性以及空间上扩展规律研究尚少。本论文在野外地质调查(包括泉水流量的调查)基础上,结合近几年发表的文献资料,对巴东县库岸段水库地震变迁过程进行了深入的研究,得出了以下3点结论:(1)从时间上看,巴东水库地震的爆发具有周期性,表现为长周期和短周期。(2)溶洞坍塌型水库地震的分布呈线状,其形成机理与高孔隙水压以及动水圧过程密切相关。(3)同时野外泉水调查研究也表明三峡库区巴东段水库地震与溶洞坍塌具有密切关系,并且从机理上说明了水库地震空间扩展机制。
Since the impoundment of the Three Gorges Reservoir,thousands of reservoir earthquakes associated with reservoir storage occurred in Badong County. The largest recorded magnitude is 5. 1. In recent years,about 50 related papers have been published,which focused on the aspects including the focal mechanism solutions of reservoir earthquake and the relationship with water level in the front dam,and the genetic mechanism of single reservoir earthquake and the micro earthquake swarms. There is a lack of research on reservoir earthquake time periodicity and spatial expansion regularity. On the basis of the field geological survey( including the spring flow survey) and the literature published in recent years,this paper presents a deep study on the earthquake evolution process of reservoir part in Badong County. Results are as follows:( 1) The outbreak of Badong reservoir earthquake has specific temporal periodicity,which is shown as long and short cycles.( 2) Reservoir earthquakes of karst collapses manifested as linear distribution,and their formation mechanism is closely related to higher pores water pressure and dynamic water pressure process.( 3) Field investigation results of spring water also indicate that the reservoir earthquakes of Badong section in Three Gorges Reservoir area have close pertinence with karst collapses,and its spatial expansion mechanism is proposed in the paper.
Since the impoundment of the Three Gorges Reservoir,thousands of reservoir earthquakes associated with reservoir storage occurred in Badong County. The largest recorded magnitude is 5. 1. In recent years,about 50 related papers have been published,which focused on the aspects including the focal mechanism solutions of reservoir earthquake and the relationship with water level in the front dam,and the genetic mechanism of single reservoir earthquake and the micro earthquake swarms. There is a lack of research on reservoir earthquake time periodicity and spatial expansion regularity. On the basis of the field geological survey( including the spring flow survey) and the literature published in recent years,this paper presents a deep study on the earthquake evolution process of reservoir part in Badong County. Results are as follows:( 1) The outbreak of Badong reservoir earthquake has specific temporal periodicity,which is shown as long and short cycles.( 2) Reservoir earthquakes of karst collapses manifested as linear distribution,and their formation mechanism is closely related to higher pores water pressure and dynamic water pressure process.( 3) Field investigation results of spring water also indicate that the reservoir earthquakes of Badong section in Three Gorges Reservoir area have close pertinence with karst collapses,and its spatial expansion mechanism is proposed in the paper.
引文
Chen J H,Gan J S,Li S L,et al.2007.Seismic activity characteristics in Dongrangkou area Badong County of Hubei Province[J].Journal of Geodesy and Geodynamics,27(3):97-105.
Chen Y H,Shi B H,Cai Y J.2017.Study on subsection of seismic characteristics induced by Three Gorges Reservoir[J].Water Resources Planning and Design,(10):77-82.
Dai M,Yao Y S,Chen J H,et al.2010.Study on relationship between earthquake activity in Three Gorges Reservoir area and water level in front of dam[J].Yangze River,41(17):12-15.
Deng J N,Zhou L Q.2003.Features and activity of Gaoqiao fault zone along the North-western margin of Zigui Basin in Hubei Province[J].Geology and Mineral Resources of South China,(3):18-23.
Ding Y Z.1989.Reservoir induced seismicity[M].Beijing:Seismological Press.
Dong Y P,ZHA X F,Fu M Q,et al.2008.Characteristics of the Dabashan fold-thrust nappe structure at the southern margin of the Qinling,China[J].Geological Bulletin of China,27(9):1493-1508.
Han X G,Rao Y Y.2004.Analysis of genesis of reservoir-induced microquakes in Badong reach of Three Gorges[J].Journal of Geodesy and Geodynamics,24(2):74-77.
Jiao Y B.1998.Study on types of earthquake sequences and relation between b-value of earthquake sequences and long-term tendency of strong earthquakes[J].Earthquake,18(1):33-40.
Li S L,Yan Z G,Xue J R,et al.2003.First microquake swarm activity since stor-age in Three Gorges reservoir[J].Journal of Geodesy and Geodynamics,23(4):75-79.
Li X R.2015.Study on seismogenesis of Badong MS5.1 earthquake in the Yangtze river three gorges reservoir region[D].Beijing:China University of Geosciences.
Luo J H.2016.A study on the three-dimensional velocity structure imaging from tomography and microseismicity in the three gorges reservoir area[D].Beijing:Earthquake Research Institute of China Earthquake Administration.
Ma W T,Xu H P,Li H O,et al.2010.Intensive observation of reservoirinduced earthquake and preliminary analysis on the causes of earthquakes in Three Gorges reservoir[J].Seismology and Geology,32(4):552-560.
Song C,Wang D.2016.Possible mechanisms of the earthquakes that occurred in the key monitoring area of the Three Gorges Reservoir after the first impoundmen[J].Journal of Geodesy and Geodynamics,36(7):625-629.
Wang K W,Zhang F,Qiu D M.2015.Relation of Huangling Antiline and landslide group in the Three Gorges Reservoir Area[J].Journal of Jilin University(Earth Science Edition),45(4):1142-1154.
Wang R S.2014.Discussion on earthquakes induced by Three Gorges Reservoir[J].Hydropower and New Energy,(8):1-6.
Wang Y R.1991.Discussion on the mechanism of reservoir induced earthquake[J].Guangxi Water Resource and Hydropower Engineering(2):64-69.
Wu H B,Yao Y S,Shen X L,et al.2015.A discussion on the source and seismogenic structure of MS4.5 and MS4.7 Zigui Earthquakes in2014[J].Seismology and Geology,37(3):719-730.
Wu J C,Chen S J,Chen J H,et al.2016.Numerical simulation of the Xiannushan fault's north segment and its seismogenic mechanism study after the impounding of the three gorges reservoir[J].Journal of Seismological Research,39(2):218-223.
Wu S Z,Luo F,Fang Y G.,et al.2013.Characteristic analysis of reservoir induced earthquakes nearby the Three Gorges Dam[J].Journal of Engineering Geology,21(6):932-937.
Xie S Y,Yuan D X,Wang J L,et al.2006.Features of the plantation surface in the surrounding area of the Three Gorges of Yangtze[J].Carsologica Sinica,25(1):40-45.
Yang Q Y,Chen X C.1998.Characteristics of intensity of reservoir induced seismicity[J].Journal of Hydroelectric Engineering,(2):21-25.
Zhang L F,Yao Y S,Sheng X L,Wei G C,et al.2014.Study on type and focal mechanism of the earthquakes in Three Gorges Reservoir[J].Journal of Geodesy and Geodynamics,34(4):77-82.
陈俊华,甘家思,李胜乐,等.2007.湖北巴东东瀼口地区地震活动特征研究[J].大地测量与地球动力学,27(3):97-105.
陈又华、石伯勋、蔡耀军.2017.三峡水库诱发地震特征分段研究[J].水利规划与设计,(10):77-82.
戴苗,姚运生,陈俊华,等.2010.三峡库区地震活动与坝前水位关系研究[J].人民长江,41(17):12-15.
邓嘉农,周乐群.2003.鄂西秭归盆地西北缘高桥断裂带特征及其活动性[J].华南地质与矿产,(3):18-23.
丁原章.1989.水库诱发地震[M].北京:地震出版社.
董云鹏,查显峰,付明庆,等.2008.秦岭南缘大巴山褶皱-冲断推覆构造的特征[J].地质通报,27(9):1493-1508.
韩晓光,饶扬誉.2004.长江三峡水库巴东库段地震成因分析[J].大地测量与地球动力学,24(2):74-77.
焦远碧.1998.地震序列类型、地震序列b值与地震大形势关系初探[J].地震,18(1):33-40.
李胜乐,严尊国,薛军蓉,等.2003.长江三峡水库蓄水后的首发微震群活动[J].大地测量与地球动力学,23(4):75-79.
李献瑞.2015.长江三峡库区巴东MS5.l级地震成因机制研究[D].北京:中国地质大学.
罗佳宏.2016.长江三峡库区三维速度成像与微震活动性研究[D].北京:中国地震局地震研究所.
马文涛,徐长月,李海鸥,等.2010.长江三峡水库诱发地震加密观测及成因初步分析[J].地震地质,32(4):552-560.
宋琛,王墩.2016.三峡水库蓄水后小微震事件的震源机制及成因分析[J].大地测量与地球动力学,36(7):625-629.
王孔伟,张帆,邱殿明.2015.三峡库区黄陵背斜形成机理及与滑坡群关系[J].吉林大学学报(地球科学版),45(4):1142-1154.
王儒述.2014.对长江三峡水库诱发地震的探讨[J].水电与新能源,(8):1-6.
王以仁.1991.水库诱发地震成因机制的探讨[J].广西水利水电,(2):64-69.
吴海波,姚运生,申学林,等.2015.2014年秭归MS4.5和MS4.7地震震源与发震构造特征[J].地震地质,37(3):719-730.
吴建超、陈蜀俊、陈俊华,等.2016.三峡水库蓄水后仙女山断裂北段数值模拟及其震机理研究[J].地震研究,39(2):218-223.
吴世泽,罗飞,房艳国,等.2013.三峡近坝库段水库诱发地震特征分析[J].工程地质学报,21(6):932-937.
谢世友,袁道先,王建力,等.2006.长江三峡地区夷平面分布特征及其形成年代[J].中国岩溶,25(1):40-45.
杨清源,陈献程.1998.水库诱发地震的烈度特征[J].水力发电学报,(2):21-25.
张丽芬,姚运生,申学林,等.2014.三峡水库地震类型:构造触发和非构造诱发地震及发震机理研究[J].大地测量与地球动力学,34(4):77-82.
Chen Y H,Shi B H,Cai Y J.2017.Study on subsection of seismic characteristics induced by Three Gorges Reservoir[J].Water Resources Planning and Design,(10):77-82.
Dai M,Yao Y S,Chen J H,et al.2010.Study on relationship between earthquake activity in Three Gorges Reservoir area and water level in front of dam[J].Yangze River,41(17):12-15.
Deng J N,Zhou L Q.2003.Features and activity of Gaoqiao fault zone along the North-western margin of Zigui Basin in Hubei Province[J].Geology and Mineral Resources of South China,(3):18-23.
Ding Y Z.1989.Reservoir induced seismicity[M].Beijing:Seismological Press.
Dong Y P,ZHA X F,Fu M Q,et al.2008.Characteristics of the Dabashan fold-thrust nappe structure at the southern margin of the Qinling,China[J].Geological Bulletin of China,27(9):1493-1508.
Han X G,Rao Y Y.2004.Analysis of genesis of reservoir-induced microquakes in Badong reach of Three Gorges[J].Journal of Geodesy and Geodynamics,24(2):74-77.
Jiao Y B.1998.Study on types of earthquake sequences and relation between b-value of earthquake sequences and long-term tendency of strong earthquakes[J].Earthquake,18(1):33-40.
Li S L,Yan Z G,Xue J R,et al.2003.First microquake swarm activity since stor-age in Three Gorges reservoir[J].Journal of Geodesy and Geodynamics,23(4):75-79.
Li X R.2015.Study on seismogenesis of Badong MS5.1 earthquake in the Yangtze river three gorges reservoir region[D].Beijing:China University of Geosciences.
Luo J H.2016.A study on the three-dimensional velocity structure imaging from tomography and microseismicity in the three gorges reservoir area[D].Beijing:Earthquake Research Institute of China Earthquake Administration.
Ma W T,Xu H P,Li H O,et al.2010.Intensive observation of reservoirinduced earthquake and preliminary analysis on the causes of earthquakes in Three Gorges reservoir[J].Seismology and Geology,32(4):552-560.
Song C,Wang D.2016.Possible mechanisms of the earthquakes that occurred in the key monitoring area of the Three Gorges Reservoir after the first impoundmen[J].Journal of Geodesy and Geodynamics,36(7):625-629.
Wang K W,Zhang F,Qiu D M.2015.Relation of Huangling Antiline and landslide group in the Three Gorges Reservoir Area[J].Journal of Jilin University(Earth Science Edition),45(4):1142-1154.
Wang R S.2014.Discussion on earthquakes induced by Three Gorges Reservoir[J].Hydropower and New Energy,(8):1-6.
Wang Y R.1991.Discussion on the mechanism of reservoir induced earthquake[J].Guangxi Water Resource and Hydropower Engineering(2):64-69.
Wu H B,Yao Y S,Shen X L,et al.2015.A discussion on the source and seismogenic structure of MS4.5 and MS4.7 Zigui Earthquakes in2014[J].Seismology and Geology,37(3):719-730.
Wu J C,Chen S J,Chen J H,et al.2016.Numerical simulation of the Xiannushan fault's north segment and its seismogenic mechanism study after the impounding of the three gorges reservoir[J].Journal of Seismological Research,39(2):218-223.
Wu S Z,Luo F,Fang Y G.,et al.2013.Characteristic analysis of reservoir induced earthquakes nearby the Three Gorges Dam[J].Journal of Engineering Geology,21(6):932-937.
Xie S Y,Yuan D X,Wang J L,et al.2006.Features of the plantation surface in the surrounding area of the Three Gorges of Yangtze[J].Carsologica Sinica,25(1):40-45.
Yang Q Y,Chen X C.1998.Characteristics of intensity of reservoir induced seismicity[J].Journal of Hydroelectric Engineering,(2):21-25.
Zhang L F,Yao Y S,Sheng X L,Wei G C,et al.2014.Study on type and focal mechanism of the earthquakes in Three Gorges Reservoir[J].Journal of Geodesy and Geodynamics,34(4):77-82.
陈俊华,甘家思,李胜乐,等.2007.湖北巴东东瀼口地区地震活动特征研究[J].大地测量与地球动力学,27(3):97-105.
陈又华、石伯勋、蔡耀军.2017.三峡水库诱发地震特征分段研究[J].水利规划与设计,(10):77-82.
戴苗,姚运生,陈俊华,等.2010.三峡库区地震活动与坝前水位关系研究[J].人民长江,41(17):12-15.
邓嘉农,周乐群.2003.鄂西秭归盆地西北缘高桥断裂带特征及其活动性[J].华南地质与矿产,(3):18-23.
丁原章.1989.水库诱发地震[M].北京:地震出版社.
董云鹏,查显峰,付明庆,等.2008.秦岭南缘大巴山褶皱-冲断推覆构造的特征[J].地质通报,27(9):1493-1508.
韩晓光,饶扬誉.2004.长江三峡水库巴东库段地震成因分析[J].大地测量与地球动力学,24(2):74-77.
焦远碧.1998.地震序列类型、地震序列b值与地震大形势关系初探[J].地震,18(1):33-40.
李胜乐,严尊国,薛军蓉,等.2003.长江三峡水库蓄水后的首发微震群活动[J].大地测量与地球动力学,23(4):75-79.
李献瑞.2015.长江三峡库区巴东MS5.l级地震成因机制研究[D].北京:中国地质大学.
罗佳宏.2016.长江三峡库区三维速度成像与微震活动性研究[D].北京:中国地震局地震研究所.
马文涛,徐长月,李海鸥,等.2010.长江三峡水库诱发地震加密观测及成因初步分析[J].地震地质,32(4):552-560.
宋琛,王墩.2016.三峡水库蓄水后小微震事件的震源机制及成因分析[J].大地测量与地球动力学,36(7):625-629.
王孔伟,张帆,邱殿明.2015.三峡库区黄陵背斜形成机理及与滑坡群关系[J].吉林大学学报(地球科学版),45(4):1142-1154.
王儒述.2014.对长江三峡水库诱发地震的探讨[J].水电与新能源,(8):1-6.
王以仁.1991.水库诱发地震成因机制的探讨[J].广西水利水电,(2):64-69.
吴海波,姚运生,申学林,等.2015.2014年秭归MS4.5和MS4.7地震震源与发震构造特征[J].地震地质,37(3):719-730.
吴建超、陈蜀俊、陈俊华,等.2016.三峡水库蓄水后仙女山断裂北段数值模拟及其震机理研究[J].地震研究,39(2):218-223.
吴世泽,罗飞,房艳国,等.2013.三峡近坝库段水库诱发地震特征分析[J].工程地质学报,21(6):932-937.
谢世友,袁道先,王建力,等.2006.长江三峡地区夷平面分布特征及其形成年代[J].中国岩溶,25(1):40-45.
杨清源,陈献程.1998.水库诱发地震的烈度特征[J].水力发电学报,(2):21-25.
张丽芬,姚运生,申学林,等.2014.三峡水库地震类型:构造触发和非构造诱发地震及发震机理研究[J].大地测量与地球动力学,34(4):77-82.
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