摘要
地质动力区划法用以揭示地壳的区域岩体断块结构以及评估其力学状态，逐级使用地形图并结合其它方法查清活断裂，由各级活断裂所分割的Ⅳ级断块结构，展现出了矿区现今构造运动的结果，以此为构造格架，确定主应力方向和构造应力区，进行区域构造应力场数值模拟，根据研究查明了一条地形上有所显示的正在形成的Ⅰ级活断裂穿过矿区。这条断裂和其它次级断裂形成的构造应力区是北票矿区动力现象显现的动力源。
Geodynamic zoning is used to reveal regional block construction of rockmass in the crust and to evaluate their mechanical conditions. Active faults are determined successively with topographic map and other methods. The construction of Ⅳ- class blocks cut by all classes of active faults exposes the result of tectonic movement. The orientation of normal stress and tectonic stress zone are determined based on the tectonic framework, and numeric simulation of regional tectonic stress field is made. AⅠ-class active fault that runs through the mine area is found based on traces on the surface. The tectonic stress zone resulted from this fault and other sub-class faults is the source of dynamic phenomenon in Beipiao mine area.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1995年第4期337-341,共5页
Journal of China Coal Society
关键词
地质动力区划
活动断裂
继块结构
北票矿区
煤矿
geodynamic zoning, active faults, block constructions, tectonic stress zone, dynamic phenomenon
