彬长矿区高位厚硬覆岩特征岩移规律研究  

Study on the characteristic and movement law of high-level thick hard overlying rock in Binchang mining area

作　　者：张冬冬 同超 陈兵 陈辉[1] 巨江鹏 ZHANG Dongdong;TONG Chao;CHEN Bing;CHEN Hui;JU Jiangpeng(Shaanxi Energy Institute,Xianyang 712000,China;Xi’an University of Science and Technology,Xi’an 710054,China;Information Operation and Maintenance Branch of Shanmei Yubei Coal Industry Co.,Ltd.,Yulin 719000,China)

机构地区：[1]陕西能源职业技术学院,陕西咸阳712000 [2]西安科技大学,陕西西安710054 [3]陕煤榆北煤业信息化运维分公司,陕西榆林719000

出　　处：《陕西煤炭》2022年第5期24-29,共6页Shaanxi Coal

基　　金：陕西能源职业技术学院校级科研项目(2020KYP13)。

摘　　要：以陕西彬长矿区亭南煤矿二盘区巨厚洛河组砂岩条件下6 m大采高多工作面开采为研究背景,应用数值模拟分析、理论分析、综合分析等手段对二盘区大采高综采工作面上覆厚硬岩层运动规律进行研究。分析认为,亭南煤矿二盘区覆岩中存在典型的高位厚硬岩层,厚硬岩层以“一主四亚”复合关键层破坏的形式控制着整个覆岩的运动;204工作面开采结束,第二亚关键层破断,205工作面开采结束,第四亚关键层破断,206工作面开采结束,覆岩主关键层破断,地表出现剧烈的移动下沉,裂缝带到达主关键层下部,需要做好主关键层破断时的动力灾害防治措施。This paper takes 6 m large mining height and multiple working face mining under the condition of sandstone in huge thick Luohe Formation in the second panel of Tingnan Coal Mine in Binchang mining area,Shaanxi Province as the research background,and applies numerical simulation analysis,theoretical analysis,comprehensive analysis and other methods are used to study the movement law of thick hard rock layer fully mechanized mining face with large mining height of the second panel area.It is believed that there are typical high-level thick hard rock layer in the overlying rock in the second panel of Tingnan Coal Mine,and the thick hard rock layer control the movement of the entire overlying rock in the form of the failure of“one main and four sub-key”composite key rock layers.Mining at the 204 working face ends,and the second sub-key layer breaking,205 working face mining ends,the fourth sub-key layer is broken,206 working face mining ends,the main key layer of overlying rock is broken,the surface appears violent movement and sinking,and the crack zone reaches the lower part of the main key layer.Therefore,it is necessary to do a good job in the prevention and control of dynamic disasters when the main critical layer is broken.

关 键 词：高位厚硬岩层 大采高 覆岩移动规律 复合关键层 

分 类 号：TD325[矿业工程—矿井建设]