水库诱发地震及其水文地质条件和诱震机理
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摘要
本文分析对比水库诱发地震的水文地质条件 ,库区水文地质条件是控制地震序列的主导因素 ,两类水库诱发地震发震机制不同 ,“快速响应型”诱震机制为水库荷载作用 ,“滞后发生型”为孔隙压扩散作用。水库诱发地震预报的关键是查明库区水文地质条件。
The temporal distribution of induced earthquake following the filling of large reservoirs shows two types of response, rapid response and delay response.Based on analysis on the hydrogeologic condition of the seismicitic region,it is proposed that hydrogeological condition is the dominant factor that controls reservoir induced condition response with time.The rapid response is dominated by undrained or drained effect.The delay response is dominated by the diffusion of pressure from the reservoir to hypocentral depths.It is pointed out that the investigation of hydrogeological condition is the crucial problem in predicting reservoir induced earthquake.
The temporal distribution of induced earthquake following the filling of large reservoirs shows two types of response, rapid response and delay response.Based on analysis on the hydrogeologic condition of the seismicitic region,it is proposed that hydrogeological condition is the dominant factor that controls reservoir induced condition response with time.The rapid response is dominated by undrained or drained effect.The delay response is dominated by the diffusion of pressure from the reservoir to hypocentral depths.It is pointed out that the investigation of hydrogeological condition is the crucial problem in predicting reservoir induced earthquake.
引文
[ 1] 丁原章 ,等 .水库诱发地震 [M],北京 :地震出版社 ,1989.
[2 ] 杨英华 .土力学 [M],北京 :地质出版社 ,1987.
[3] 李祖武 ,于品清 ,孔凡键 .中国水库地震的地质条件[A].中国诱发地震 [C].北京 :地震出版社 ,1984
[ 4] D.W.Simpson,W.S.L eith,and C.H.Scholz.Two types of reservoir- induced seismicity [J]. Bul-letin of Seismological Society of America,1988,78(6 ) :2 0 2 5 - 2 0 40
[5 ] R. K. Chadha. Role of Dykes in Induced Seismicityat Bhatsa Reservoir[J].Maharashtra.India Pure andApplied Geophysics,1995 ,145 (1)
[6 ] A.M.Rogers and W.H.K.L ee.Seism ic study ofearthquakes in the lake mead[J].Nevada- Arizona re-gion Bulletin of the Seismological of America,1976 ,6 6 (5 ) :16 5 7- 16 81.
[7] Mohamed Awad and Megume Mizoue. EarthquakeActivity in the Aswan Region[J].Egypt Pure and Ap-plied Geophysics,1995 ,145 (1) .
[8] Pradeep Talwani.Speculation on the Causes of Con-tinuing Seism icity Near Koyna [J]. Pure and AppliedGeophysics,1995 ,145 (1) .
[9] Gabriel L eblanc and F.Anglin Induced seismicity atthe Manic3reservoir[J].Quebec.Bulletin of the Seis-mological of America,1978,6 8(5 ) :146 9- 1485 .
[10 ] Pei Ding. The Characteristics of Small Earthquakesand Stress Field:a study of reservoir Induced seismic-ity in Qucbec[J].Soil dynamic and Earthquake Engi-neering,1992 ,(11) :193- 2 0 2 .
[11] N.I.Nikolaev.The First Case of Induced EarthquakesDuring Construction of a Hydro- electric Power Sta-tion in The USSR [J].Engineering Geology,1987,(8) :10 7- 10 8
[2 ] 杨英华 .土力学 [M],北京 :地质出版社 ,1987.
[3] 李祖武 ,于品清 ,孔凡键 .中国水库地震的地质条件[A].中国诱发地震 [C].北京 :地震出版社 ,1984
[ 4] D.W.Simpson,W.S.L eith,and C.H.Scholz.Two types of reservoir- induced seismicity [J]. Bul-letin of Seismological Society of America,1988,78(6 ) :2 0 2 5 - 2 0 40
[5 ] R. K. Chadha. Role of Dykes in Induced Seismicityat Bhatsa Reservoir[J].Maharashtra.India Pure andApplied Geophysics,1995 ,145 (1)
[6 ] A.M.Rogers and W.H.K.L ee.Seism ic study ofearthquakes in the lake mead[J].Nevada- Arizona re-gion Bulletin of the Seismological of America,1976 ,6 6 (5 ) :16 5 7- 16 81.
[7] Mohamed Awad and Megume Mizoue. EarthquakeActivity in the Aswan Region[J].Egypt Pure and Ap-plied Geophysics,1995 ,145 (1) .
[8] Pradeep Talwani.Speculation on the Causes of Con-tinuing Seism icity Near Koyna [J]. Pure and AppliedGeophysics,1995 ,145 (1) .
[9] Gabriel L eblanc and F.Anglin Induced seismicity atthe Manic3reservoir[J].Quebec.Bulletin of the Seis-mological of America,1978,6 8(5 ) :146 9- 1485 .
[10 ] Pei Ding. The Characteristics of Small Earthquakesand Stress Field:a study of reservoir Induced seismic-ity in Qucbec[J].Soil dynamic and Earthquake Engi-neering,1992 ,(11) :193- 2 0 2 .
[11] N.I.Nikolaev.The First Case of Induced EarthquakesDuring Construction of a Hydro- electric Power Sta-tion in The USSR [J].Engineering Geology,1987,(8) :10 7- 10 8
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