摘要
基于榆树井煤矿、新上海一号煤矿、查干淖尔一号煤矿巷道现场调研,采用围岩矿物成分分析、原支护围岩收敛变形与锚杆受力实时监测等巷道地质力学测试技术,对侏罗白垩纪极弱胶结软岩巷道的破坏特征及其变形破坏机理进行深入研究,提出围岩遇水软化、膨胀性强、支护形式不合理等为其变形破坏主要原因,为该类地层巷道支护对策的制定提供科学依据。
Based on the study in roadways in Yushujing coal mine, New Shanghai No. 1 coal mine and Chagannaoer No. 1 coal mine, which covers the field investigation, geological mechanic test, convergence deformation of supporting rock.the real time monitoring work of bolt force and other geological mechanics testing technologies,authors made a further research into the failure characteristics as well as the deformation failure mechanism of cement soft rock formed during Jurassic-Cretaceous period, and put forward aspects of the deformation failure including degradation and softening in water,high expansibility and the unreasonable supporting structure. Therefore,this study can pro- vide scientific basis for reasonable and effective supporting.
出处
《山东科技大学学报（自然科学版）》
CAS
2013年第4期1-6,共6页
Journal of Shandong University of Science and Technology(Natural Science)
基金
国家自然科学基金项目(51174128)
关键词
极弱胶结
膨胀性
破坏特征
破坏机理
very weakly cemented
expansibility
failure characteristic
failure mechanism
