| 地幔上涌引起的破裂危险性 |
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| 引用本文： | 许寿椿.地幔上涌引起的破裂危险性[J].地震地质,1982,4(3):11. |
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| 作者姓名： | 许寿椿 |
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| 作者单位： | 国家地震局地震地质大队 |
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| 摘 要： | 本文用二维非线性有限元方法,计算了一个地堑剖面因地幔上涌引起的破裂危险。在两侧边界挤压应力小于岩石静压力条件下,破裂危险增长区主要集中于地堑内部及地堑断层附近
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| 关 键 词： | 地幔上涌 莱茵地堑 安全度 地堑断层 岩石静压力 地堑系 两侧边界 危险性 增长区 上拱高 |
THE DANGEROUS DEGREE OF FRACTURE CAUSED BY THE UPWARPING OF MANTLE |
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| Abstract: | A two dimensional non-linear finite element scheme was used in the study of stress field on a deep section of a typical graben system. The parameters of the specific section is determined according to the data given in ref,The programme employed is a transplantation of the programme employed by Wang Ren. The faults are represented by laminar material, transversely isotropic elasto-plas-tic material. The change in the degree of safety caused by the upwarping of mantle is estimated (See Figs 2 and |
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