球面非连续变形分析方法在伽师地震中的数值模拟研究

¹三峡大学三峡库区地质灾害教育部重点实验室,宜昌市大学路8号443002;²武汉大学期刊社,武汉市珞喻路129号,430079;³中国地震局地震研究所,武汉市洪山侧路40号,430071;⁴武汉大学测绘学院,武汉市珞喻路129号430079

基金项目: 三峡大学三峡库区地质灾害教育部重点实验室开放研究基金资助项目(2006KDZ05)，武汉大学地球空间环境与大地测量教育部重点实验室测绘基础研究基金资助项目

详细信息

Spherical Discontinuous Deformation Analysis Method on Movement Numerical Simulation Forecast of Jiashi Earthquake Area

¹Key Lab.of Geological Hazards on Three Gorges Reservoir Area of Ministry of Education,Three Gorges University,8 Daxue Road,Yichang 443002,China;² Journals Press of Wuhan University,129 Luoyu Road,Wuhan 430079,China;³ Institute of Seismology,China Earthquake Administation,40 Hongshan Road,Wuhan 430071,Chian;⁴ School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China

Funds: 三峡大学三峡库区地质灾害教育部重点实验室开放研究基金资助项目(2006KDZ05)，武汉大学地球空间环境与大地测量教育部重点实验室测绘基础研究基金资助项目

摘要: 结合伽师强震区板块的非连续性变形运动特征,应用球面非连续变形分析方法,以大范围板块GPS监测数据为约束条件,对伽师地区强震前后的位移场、应力场的数值模拟与运动预测进行了系统的研究;通过断裂后的再次位移约束,全程模拟了伽师强震群地区从孕震到地震发生,直到再次聚集能量的过程,揭示了伽师强震群地区的地震活动规律。
- 球面非连续变形分析 /
- GPS /
- 数值模拟
Abstract: Considering the movement character of discontinuous deformation in Jiashi strong earthquake swarm,the stress and distance fields of fore-and-aft earthquake are systemically studied using the spherical discontinuous deformation analysis method with the restriction condition of GPS observations.Through the second distance restriction,the process of the pregnant,happening and the congregation again of earthquake are numerical simulated,and the earthquake movement law in Jiashi area is opened out.
- spherical discontinuous deformation analysis /
- GPS /
- numerical simulation