重庆大学学报Issue(3)：107-115,9.DOI:10.11835/j.issn.1000-582X.2015.03.015
采动影响下逆断层特征参数对断层活化的作用规律
Influence law of fault activation induced by coal extraction based on characteristic parameters of thrust fault
摘要
Abstract
The main factors of fault slip are analyzed in this paper.A simplified model of thrust fault is constructed by FLAC3D and the basic change law of elastic energy,vertical stress,shear stress and slippage of fault plane in the conditions of different distance from the fault,different fault dips and different throws is analyzed.And then the influence law of fault activation induced by coal extraction based on the characteristic parameters of thrust faults is revealed.The study results show that the elastic energy near faults will decrease with the distance increases from faults and will increase with fault dips or fault throws increase in the hanging wall or the footwall mining.But the focus level of elastic energy is high in the footwall mining.Vertical stress and shear stress variation of the different characteristic parameters is complicated.In a word,the increase of shear stress is obvious and the variation of vertical stress is not obvious.And the situation is prone to faults activation.Fault slippage will decrease with the distance increase from faults in the hanging wall mining or the footwall mining.And fault slippage will increase with fault dips increase and will decrease with fault throws increase in the hanging mining.If faces are mined in the footwall,the reverse results will show.关键词
逆断层/断层活化/断层倾角/断层落差/特征参数/弹性能/正应力/剪应力/滑移量Key words
thrust fault/fault activation/fault dip/fault throw/characteristic parameter/elastic energy/vertical stress/shear stress/slippage分类
矿业与冶金引用本文复制引用
徐晓惠,吕进国,刘闯,白润才,李胜..采动影响下逆断层特征参数对断层活化的作用规律[J].重庆大学学报,2015,(3):107-115,9.基金项目
国家自然科学基金资助项目（51004063）。Supported by National Natural Science Foundation of China （51004063）． （）
