摘要
文章以淮北临涣矿区为例,分析了二叠系煤系风化软弱夹层泥化的可能性,提出了夹层泥化发展的四个可能阶段,探讨了风化夹层泥化与井筒破裂的关系。
The paper analyses the possibility of argillization of weak intercalation in Permian weathered coal measures strata in Linhuai coal field, Huaibei and discusses the conditions, mechanism and evolution of argillized intercalation. Two damages to pit shaft may be caused by the argillization of intercalation i. e. shear sliding and plastic flowing deformation. The reasons of shaft rupture, prevention and harnessing of the disaster have been discussed through the understanding and controlling for the shaft rupture in other coal field with similar conditions. However, due to the deficient data and quantitative relationship, the recognition for the evolution regularity of parameters including wall rock stress, displacement, hydraulic pressure and sidewall stress as well as strain in the course of argillization of intercalation is still to be deepened. Weak intercalation Argillization Seepage flow Shaft rupture Anhui
出处
《江苏地质》
1996年第2期101-107,共7页
Jiangsu Geology
基金
煤炭科学基金
