摘要
为研究镇城底矿8#煤层顶板两带发育高度情况,以28107工作面为研究对象,根据《三下采煤规程》中的相关经验公式对回采工作面煤层顶板两带高度进行预计,利用FLAC3D计算机软件模拟井下施工过程中顶板导水裂隙带的发育高度,应用井下仰孔压水试验法实际探测工作面的两带发育高度。通过三种方法的综合比对分析,确定镇城底矿28107工作面垮落带发育高度范围为15.90~20.95 m,导水裂隙带发育高度范围为53.82~58.85 m,对该矿防治水工作有重要指导意义。
To study the developmental situation of Two Belts height of 8 # coal seam roof in Zhen Chengdi Coal Mine,taking the 28107 works face as the research object,the paper predicts the Two Belts height based on the rele- vant empirical formula of Rules for coal pillar retention and coal mining in buildings,water bodies,railways and main shafts,simulates the developmental height of the water flowing fractured zone by using FLAC 3D ,detects the height of Two Belts zone by means of downhole pressure water test method. With comprehenswe comparison analysis of three methods,it can be concluded that range of caving zone height is 15.90~20.95m,and the range of flowing fractured zone is 53.82~58.85m,which gives important guidance for the control of water in the coal mine.
作者
杨高峰
孙泽
YANG Gaofeng;SUN Ze(XiShan Coal Electricity Group Co. ,Ltd. ,Taiyuan,030024,China;School of Safety Engineering,North China Institute of Science and Technology,Yanjiao,065201,China)
出处
《华北科技学院学报》
2019年第3期15-19,共5页
Journal of North China Institute of Science and Technology
基金
中央高校基本科研业务费资助项目(3142019040)
关键词
导水裂隙带
经验公式
数值模拟
压水试验
Water flowing fractured zone
Experiential formula
Numerical simulation
Water injection test
作者简介
杨高峰( 1970-),男,山西运城人,硕士,山西西山煤电集团公司高级工程师,研究方向:煤田地质勘查。E-mail:510571851@qq. com.
