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1984: THE TOTAL EFFECT OF THE LOAD OF WATER UPON LOCAL CRUSTAL DEFORMATION AND EARTHQU- AKES OF THE DANJIANG RESERVOIR AREA. Acta Seismologica Sinica, 6(3): 304-312.
Citation: 1984: THE TOTAL EFFECT OF THE LOAD OF WATER UPON LOCAL CRUSTAL DEFORMATION AND EARTHQU- AKES OF THE DANJIANG RESERVOIR AREA. Acta Seismologica Sinica, 6(3): 304-312.
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THE TOTAL EFFECT OF THE LOAD OF WATER UPON LOCAL CRUSTAL DEFORMATION AND EARTHQU- AKES OF THE DANJIANG RESERVOIR AREA

  • Institute of Seismology, State Stismological Bureau

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  • Published Date: August 31, 2011
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  • After a reservoir was filled with water, the effect on statical deformation in the rock medium of it's foundation is caused by the load of water mass. Morever, the deformation also results from the dilatancy in the rock medium at the foci when some earthquakes occur. In this paper, these two types of deformations have been considered.The total effect of the load of the water mass on statical deformation consists of the statical elastic deformation in rock medium resulting from the water load, the deformation of the gravitational equipotential surface caused by the water mass, and that resulting from elastic deformation. In addition, the upheaval of ground surface due to dilatancy in the rock medium occurs also at certain stages. It induces, at the same time, the variation of the Earth's gravitational field.The results obtained from first order precise levelling prior to and after the filling of the Danjiang reservoir have been analysed based on the model mentioned above. Lame elastic constant of rock medium has been determined and the relation between vertical deformation of ground surface and the earthquakes occurred in this area has been discussed. It is supposed that with this model, studies on the characteristics of the vertical deformation of ground surface after the filling of the reservoir, then, may be possible to acquire certain information for earthquake predication in the area.
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    • References (1)
  • [1] R. W. Sleigh, C. C.Worrall and G. H. L. Slow, Crustal deformation resulting from the imposition of a large mass of water, Bull. Geoderique, 93, 245——254, 1969.

    [2] 王妙月等,新丰江水库地震的震源机制及其成因的初步探讨,地球物理学报,19, 1——17, 1976.

    [3] 吴翼麟等,汉江丹江口水库地震活动,丹江口水库诱发地震文集,地震出版社,1980

    [4] 高锡铭、殷志山,丹江水库的地震活动,国家地震局地震研究所;丹江口水库诱发地震文集,地震出版社,1980,.

    [5] D. I. Gough and W. I. Gough, Sttess and deformation in the lithosphere near Lake Kariba, Geophys. J. Roy. Astro. Soc., 21, 1, 65——78, 1970.

    [6] E. Nishimura, On Earth tides, Trans. Am. Geoph. Un.,31, 3, 357——1370, 1950.

    [7] P. Meichior, The tides of the planet Earth, Pergamon Press, Oxford, 1978.

    [8] A. Zeman, Lames elastic constants detPrminPrl from the results of geodetic measurements, Studia Geophy,aaca et Geodaetica, 2, 107——113, 1980.

    [9] W. E. Farrell, Deformation of the earth by surface loads, Rev.Geophys. Space Phys., 10, 3,761——797, 1972.

    [10] B. Gutenberg, Physics of the Earth's interior, Acadcmio Press,Naw York and London, 1957.

    [11] Kyoritu Zensyo, Gravity of the Earth, Printed in Japan, 1979.

    [1] R. W. Sleigh, C. C.Worrall and G. H. L. Slow, Crustal deformation resulting from the imposition of a large mass of water, Bull. Geoderique, 93, 245——254, 1969.

    [2] 王妙月等,新丰江水库地震的震源机制及其成因的初步探讨,地球物理学报,19, 1——17, 1976.

    [3] 吴翼麟等,汉江丹江口水库地震活动,丹江口水库诱发地震文集,地震出版社,1980

    [4] 高锡铭、殷志山,丹江水库的地震活动,国家地震局地震研究所;丹江口水库诱发地震文集,地震出版社,1980,.

    [5] D. I. Gough and W. I. Gough, Sttess and deformation in the lithosphere near Lake Kariba, Geophys. J. Roy. Astro. Soc., 21, 1, 65——78, 1970.

    [6] E. Nishimura, On Earth tides, Trans. Am. Geoph. Un.,31, 3, 357——1370, 1950.

    [7] P. Meichior, The tides of the planet Earth, Pergamon Press, Oxford, 1978.

    [8] A. Zeman, Lames elastic constants detPrminPrl from the results of geodetic measurements, Studia Geophy,aaca et Geodaetica, 2, 107——113, 1980.

    [9] W. E. Farrell, Deformation of the earth by surface loads, Rev.Geophys. Space Phys., 10, 3,761——797, 1972.

    [10] B. Gutenberg, Physics of the Earth's interior, Acadcmio Press,Naw York and London, 1957.

    [11] Kyoritu Zensyo, Gravity of the Earth, Printed in Japan, 1979.
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