软弱围岩工作面回撤过程中顶板运移规律研究  

Study on mine roof migration law during coal mining face removing in soft and weak surrounding rocks

作　　者：栗献中[1,2] 

机构地区：[1]河南理工大学,河南焦作454000 [2]神华神东煤炭集团昌汉沟煤矿,内蒙古鄂尔多斯017000

出　　处：《煤炭工程》2010年第2期43-45,共3页Coal Engineering

摘　　要：为了研究软弱围岩条件下综采工作面回撤过程中顶板运移规律,通过对昌汉沟矿综采15104工作面约80m末采区和回撤通道19d的现场矿山压力监测,详细记录了支架与围岩在工作面回撤前与回撤时的压力分布情况,以及矿山压力显现规律。根据理论分析计算,得出了在软弱围岩工作面回撤过程中顶板运移规律,对指导实践提供了理论依据。In order to study the mine roof migration law during the removing of the fully mechanized coal mining face in soft and weak surrounding rocks, with the mine site strata pressure monitoring and measurements at the mining terminal area with 80 m distance to the 15104 fully mechanized coal mining face and in the face removing gateway 19d in Changhangou Mine, the strata pressure distributions of the powered supports and the surrounding rocks before and during the removing of the coal mining face as well as the mine pressure behaviors law were recorded in detail. According to the theoretical analysis and calculation, the mine roof migration law of the coal mining face removing in soft and weak surrounding rocks was obtained, which could provide the theoretical basis to guide the practices.

关 键 词：顶板运移规律 顶板结构 矿山压力显现 

分 类 号：TD325.1[矿业工程—矿井建设]