SOME KEY QUESTIONS IN THE FORMATION OF GROUND FISSURES IN THE FEN-WEI BASIN
SOME KEY QUESTIONS IN THE FORMATION OF GROUND FISSURES IN THE FEN-WEI BASIN
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发表时间：
2007
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通讯作者：
Peng Jianbing
中科院分区：
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作者：
Peng Jianbing
汾渭盆地是我国地裂缝发育最严重的地区。本文总结了盆地地裂缝的分布规律，分析了地裂缝形成的几个关键问题，强调了大地构造地裂缝的成因，提出了以下研究思路：运用多学科方法，研究地裂缝的分布规律及其与活动构造的关系，通过现代数值模拟和高精度观测技术，研究了构造作用引发地裂缝的力学机制以及构造作用与抽水作用的耦合破裂机制，并利用GPS观测资料，对青藏大陆和华北大陆地裂缝的形成进行了研究，研究了区域地裂缝与中国大陆动力学的内在联系，揭示了大陆驱动力和地质灾害的机制和模式。
The Fen-Wei basin is the most serious area of the ground fissure formation in China.This paper summarizes the distribution regularity of ground fissures in the basin.It analyses several key questions in the formation of ground fissures and emphasizes the origin of geotectonic ground fissures,puts forward some research ways as follows.By multi-disciplinary method,the distribution regularity of ground fissures and the relations to active tectonics are researched,and the tectonic ground fissures' geological structural model is built.Through the modern numerical simulation with the high-precision observation techniques,the mechanical mechanics of ground fissures started by tectonization as well as the coupling rupture mechanics of tectonization and pumping actions are studied.Based on the observation data from GPS,the formation of the ground fissures on Qinghai-Tibet continent and the continent in north China,the intrinsic relations between regional ground fissures and the Chinese continental dynamics are studied,and the mechanism and model of continental drive force and the geological hazard are disclosed.