大断面厚顶煤巷道顶板离层预警阈值分析  

Analysis on Roadway Roof Separation Early Warning Threshold Value for Large Section and Thick Top Coal

作　　者：张立海 

机构地区：[1]中煤平朔集团有限公司井工二矿,山西朔州036006

出　　处：《煤矿安全》2014年第8期217-220,共4页Safety in Coal Mines

摘　　要：介绍了顶板离层的概念、影响顶板离层的主要因素,针对井工二矿29211辅运顺槽工程地质条件,利用现场实测和数值模拟方法,分析大断面厚顶煤巷道围岩变形及顶板离层特征,得出其顶板离层预警阈值,为井工二矿制定科学的顶板管理措施提供依据。The concept of roof separation and main factors of affecting roof separation were introduced. With the engineering geological conditions of 29211 auxiliary transportation roadway, the method of field measurements and numerical simulation were used, and than the article discussed roadway roof separation early warning threshold value with large section and thick top coal. At last, this article provided the technical advantage and theoretical support for roof management in No. 2 Mine.

关 键 词：大断面 厚顶煤 顶板离层 预警阀值 

分 类 号：TD327.2[矿业工程—矿井建设]