刀把式工作面矿压显现特征研究  

Study on the Strata Behavior Characteristics of the Knife-handle-type Face

作　　者：张彦 武东峰 查文华[1,2] 陈登红[1,2] ZHANG Yan;WU Dongfeng;ZHA Wenhua;CHEN Denghong(Key Laboratory of Mining Coal Safety and Efficiently Constructed by Anhui Province and Ministry of Education, Anhui University of Science and Technology,Huainan,Anhui 232001,China;Collage of Energy and Safety, Anhui University of Science and Technology,Huainan,Anhui 232001,China)

机构地区：[1]安徽理工大学煤矿安全高效开采省部共建教育部重点实验室,安徽淮南市232001 [2]安徽理工大学能源与安全学院,安徽淮南市232001

出　　处：《矿业研究与开发》2019年第1期40-43,共4页Mining Research and Development

基　　金：国家自然科学基金资助项目(51474005;515040006);中国博士后科学基金资助项目(2016M592033);安徽省自然科学基金资助项目(1508085SQE211)

摘　　要：针对山西灵石某矿监测刀把式工作面顶板矿压显现特征与预测切眼对接前后顶板来压步距变化的安全生产技术问题,采用薄板理论给出刀把式工作面来压垮落步距,并分析内切眼顶板初次破断以及切眼对接后的周期性破断形式。结合现场半自动综采支架压力计采集的实时数据,验证薄板理论可以为此类顶板条件提供理论指导。结果表明:顶板实际破断形式与运用薄板理论建立的模型基本相符,且垮落步距计算理论值19.3m与实际观测值20.3m的误差率仅为4.9%,满足工程预测要求。Aiming at the strata behavior characteristics in monitoring knife-handle-type face of Lingshi mine in Shanxi,as well as the safety production technology in forecasting the change of roof weighting step before and after the open-off cut docking,the thin plate theory was used to calculate the periodic roof weighting step of knife-handle-type face.And the periodic breakage forms were analyzed in different periods,including the first breakage of the roof with internal cut and the period after the docking.Combining with the real-time data collected by the semi-automatic fully mechanized support pressure gauge,the thin plate theory was verified to provide theoretical guidance for such roof conditions.The results showed that the actual breakage form of roof was basically consistent with the model established by using thin plate theory,and the error rate between the theoretical value of 19.3 mand the actual observation value of 20.3 m was only 4.9%,which met the requirements of engineering prediction.

关 键 词：刀把式工作面 薄板理论 矿压观测 矿压显现特征 

分 类 号：TD323[矿业工程—矿井建设]