摘要
本文用有限元法对煤层在晚侏罗世—白垩纪的构造应力场进行了数学模拟。找出了古构造应力对煤体的结构和煤体的强度具有一定的控制作用。在这些认识的基础上,对该矿的瓦斯突出进行了分区预测。作为一种方法,这乃是一个新的尝试。
Coal and gas outbursts in this shaft, most of which are collapses due to gas and gravity, occured only in Ⅲ_3coal seam In this paper, the authores have taken Ⅲ_3coal seam of the mine as an example, simuleted its 3—dimensional palaeo—tectonic stress field by means of FEM, probed into the relation between palaeo-tectonic stress field and coal and gas outburst, and predicted the tenderly of coal and gas outbutst of unmined areas taking account oforther factors.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
1991年第5期22-29,共8页
Coal Geology & Exploration
