倾斜厚煤层综放工作面端头矿压特征分析  

Analysis on Mine Strata Pressure Features of Face Ends in Fully Mechanized Top Coal Caving Mining Face in Inclined Thick Seam

作　　者：顾士坦[1,2] 李男男[1,2] 蒋邦友[1,2] 沈腾飞[1,2] 

机构地区：[1]山东科技大学矿山灾害预防控制教育部重点实验室,山东青岛266590 [2]山东科技大学资源与环境工程学院,山东青岛266590

出　　处：《煤炭工程》2012年第8期71-74,共4页Coal Engineering

基　　金：国家重点基础研究发展计划(973)子课题(2010CB226805-02);中国博士后科学基金(20100471561);山东科技大学科研创新团队支持计划项目(2010KYTD105)

摘　　要：倾斜煤层综放开采,采煤工作面的矿山压力显现受到煤(岩)层倾角的影响。较长工作面的顶板往往呈纵向O-X型破断,顶板来压在工作面方向出现不同步特征,两端头的顶板先破坏。通过对3301工作面两端头位置的矿压现场在线监测,结合工作面矿压显现进行顶板来压特征分析,得出了该工作面顶板运动变化规律、周期来压步距及两端头矿压变化规律。同时分析了液压支架的工作状态,检验了工作面的支护质量,为提高顶板管理水平及后续生产提供指导。The fully mechanized top coal caving mining in the inclined seam and the mine strata pressure behaviors of the coal mining face were affected by the seam （rock） inclination. The roof of the long coal mining face would be in a longitudinal O - X type broken, the roof pressurized in the coal mining face direction would have different step features and the roof at the two face ends would failed firstly. With the site on - line monitoring and measuring conducted on the mine pressures at the two ends of No. 3301 coal mining face, in combination with the mine pressure behavior, an analysis was conducted on the roof pressure features. The analysis showed the roof movement variation law of the coal mining face, periodical pressurized steps and mine pressure variation law at the two face ends. The working status of the hydraulic powered support was analyzed and the support quality of the coal mining face was inspected in order to improve the roof control level and to provide the guidance to the later production.

关 键 词：综放开采 支架工作阻力 周期来压 顶板 支护 

分 类 号：TD326[矿业工程—矿井建设]