摘要
对晋中南现代构造应力场进行了数值模拟．模拟结果显示，现代构造应力场主应力差在沁水含煤向斜轴部存在着呈北东向展布的高值条带，且最大主应力为压应力；其应力水平和应力性质与应力降和小震综合断面解资料基本吻合；晋中南东部沁水含煤向斜内部产生近水平挤压应力场的动力来源于东部太行山和西部霍山的隆起和抬升；太原盆地中的近水平伸展应力场则与盆地深部塑性物质的上涌所导致的侧向拉伸有关．
The numerical simulation of current tectonic stress field in south central Shanxi is carried out. The result shows that the maximum stress is compressive, and the high value belt of stress drop in Qinshui syncline is in NE direction. The stress level, stress nature and stress drop are in correspondence with the data of synthetic seismic section solution of small earthquake. It also shows that the dynamic of the subhorizontal compress stress field in Qinshui syncline comes from the rise of the eastern Taihang mountain and the western Huoshan mountain. The subhorizontal extensive stress field of Taiyuan and Linfen basins is related to the side direction stretch raised by the rise of plastic material deeply under the basins.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1998年第1期13-18,共6页
Journal of China University of Mining & Technology
基金
国家自然科学基金
