AN ZHENWEN, ZHU CHUANZHEN . 1986: STUDY OF GEOTHERMAL VARIATION IN RELATION TO LARGE EARTHQUAKES(2)THE EFFECT OF TEMPERATURE GRADIENT ON FRACTURE PROPAGATION DIRECTION FOR STRIKE-SLIP FAULT. Acta Seismologica Sinica, 8(4): 382-392.
Citation: AN ZHENWEN, ZHU CHUANZHEN . 1986: STUDY OF GEOTHERMAL VARIATION IN RELATION TO LARGE EARTHQUAKES(2)THE EFFECT OF TEMPERATURE GRADIENT ON FRACTURE PROPAGATION DIRECTION FOR STRIKE-SLIP FAULT. Acta Seismologica Sinica, 8(4): 382-392.

STUDY OF GEOTHERMAL VARIATION IN RELATION TO LARGE EARTHQUAKES(2)THE EFFECT OF TEMPERATURE GRADIENT ON FRACTURE PROPAGATION DIRECTION FOR STRIKE-SLIP FAULT

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  • Published Date: August 31, 2011
  • Considering a fault of elliptical-shaped crack along which exists a uniform thermal gradi-eni. The characteristics of the direction of fracture propagation of such a crack have been analysed theoretically under uniform shear loads whose direction parallels with that of the major axis of the ellipse. The results indicate that besides the fracture branches occurring in small regions near both ends of the major axis of the crack and making an angle of about 80 with the fracture plane, non-coplanar fracture branches also appear in the middle part of the major axis and at the ends of the minor axis. The extension range oi the fracture branches is related with the aspect ratio of the crack and the thermal gradient etc.On the basis of this model, the aftershock distributions of the Tangshan, Haicheng and Lon-gling earthquakes are well explained.
  • [1] 覃玉玺、潘用泛, 云南省温泉区划与地震空间关系的初步探讨, 地震研究, 5, 199——212, 1982.

    [2] 安镇文、朱传镇, 地热异常和地震孕育及发生的关系, 地震研究, 8, 541——549, 1985.

    [3] 王林瑛、朱传镇, 唐山地震和海城地震前地温的异常变化, 地震研究, 7, 649——656, 1984.

    [4] 中国科学院地质所, 地热研究论文集, 科学出版社, 1978.

    [5] 张之立, 唐山地震破裂过程的三维分析, 地震学报, 6, 22——28, 1984.

    [6] 谷继成、谢小碧、赵莉, 强余震的空间分布特征及其理论解释, 地震学报, 4, 380——388, 1982.

    [7] 石川有三、朱传镇、曹天青, 唐山、海城、盐源一宁菠地地震强余震特征, 地震学报, 5, 15——29, 1983.

    [8] 马宗晋、付征祥、张郧珍、汪成民、张国民、刘德富, 1966——1976年中国九大地震, 地震出版社, 1982.

    [9] 朱成男, 龙陵地震地质背景, 地震研究, 2, 53——64, 1979.

    [10] 朱凤鸣, 一九七五年海城地震, 地震出版社, 1982.

    [11] 张汝惠、解政文、武冀新、谢毅真、刘明, 唐山及其邻区热流值的分布, 地震地质, 4, 57——68, 1982.

    [12] Kassir, M. K., and Sih, G. C., Three——dimensional stress distribution around an elliptical crack under arbitrary loodings, J. of Appl.Mech., 33, 601——611, 1966.

    [13] Kassir, M. K., and Sih, G. C., Three——dimensional thermoelostic problems of plane discontinuites or cracks in solids, Development in Theoretical and Applied Mechanics, 3, 117——146, 1967.

    [14] Sih, G. C., Strainenergy density factor applied to mixed mode crack problems, Int. J. Fractrtre, 10, 305——321, 1974.

    [15] 陈立德、赵维城, 一九七六年龙陵地震, 地震出版社, 1979.

    [16] Kassir, M. K., and Sih, G. C., Mechanics of Fracture, 2, "Three——dimensional cruck problems, Leyden, Noordhoff International Publishing, 1975.

    [17] 安镇文、朱传镇, 地热与地震关系的研究(一), 地震学报, 6, 211——222, 1984.

    [1] 覃玉玺、潘用泛, 云南省温泉区划与地震空间关系的初步探讨, 地震研究, 5, 199——212, 1982.

    [2] 安镇文、朱传镇, 地热异常和地震孕育及发生的关系, 地震研究, 8, 541——549, 1985.

    [3] 王林瑛、朱传镇, 唐山地震和海城地震前地温的异常变化, 地震研究, 7, 649——656, 1984.

    [4] 中国科学院地质所, 地热研究论文集, 科学出版社, 1978.

    [5] 张之立, 唐山地震破裂过程的三维分析, 地震学报, 6, 22——28, 1984.

    [6] 谷继成、谢小碧、赵莉, 强余震的空间分布特征及其理论解释, 地震学报, 4, 380——388, 1982.

    [7] 石川有三、朱传镇、曹天青, 唐山、海城、盐源一宁菠地地震强余震特征, 地震学报, 5, 15——29, 1983.

    [8] 马宗晋、付征祥、张郧珍、汪成民、张国民、刘德富, 1966——1976年中国九大地震, 地震出版社, 1982.

    [9] 朱成男, 龙陵地震地质背景, 地震研究, 2, 53——64, 1979.

    [10] 朱凤鸣, 一九七五年海城地震, 地震出版社, 1982.

    [11] 张汝惠、解政文、武冀新、谢毅真、刘明, 唐山及其邻区热流值的分布, 地震地质, 4, 57——68, 1982.

    [12] Kassir, M. K., and Sih, G. C., Three——dimensional stress distribution around an elliptical crack under arbitrary loodings, J. of Appl.Mech., 33, 601——611, 1966.

    [13] Kassir, M. K., and Sih, G. C., Three——dimensional thermoelostic problems of plane discontinuites or cracks in solids, Development in Theoretical and Applied Mechanics, 3, 117——146, 1967.

    [14] Sih, G. C., Strainenergy density factor applied to mixed mode crack problems, Int. J. Fractrtre, 10, 305——321, 1974.

    [15] 陈立德、赵维城, 一九七六年龙陵地震, 地震出版社, 1979.

    [16] Kassir, M. K., and Sih, G. C., Mechanics of Fracture, 2, "Three——dimensional cruck problems, Leyden, Noordhoff International Publishing, 1975.

    [17] 安镇文、朱传镇, 地热与地震关系的研究(一), 地震学报, 6, 211——222, 1984.
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