厚煤层分层开采切顶卸压沿空留巷切缝参数研究  

Parameters of Gob-side Entry Retaining Formed by Roof Cut and Pressure Releasing in Thick Coal Seams Separated by Zone Production Technique

作　　者：汤建泉 李伟涛[1] 宋文军 刘吉存 TANG Jian-quan1,2, LI Wei-tao1, SONG Wen-jan3, LIU Ji-cun4(1. College of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, China ; 2. Institute of Mining Engineering, Shandong University of Science and Technology, Tai＇an 271019, China; 3. School of Civil Engineering, Shangqiu Institute Technology, Shangqiu 476000, China; 4. Shandong Hi-Speed Road and Bridge Co., Ltd., Jinan 250000, Chin)

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛266590 [2]山东科技大学采矿工程研究院,山东泰安271019 [3]商丘工学院土木工程学院,河南商丘476000 [4]山东高速路桥集团股份有限公司,济南250000

出　　处：《煤炭技术》2018年第6期6-8,共3页Coal Technology

摘　　要：以河南赵固一矿16011工作面作为工程背景,对厚煤层分层开采切顶卸压沿空留巷技术的切缝参数进行研究。通过FLAC^(3D)数值模拟分析了不同的切顶高度和切顶角度下沿空巷道上方应力的变化。最终确定了该工作面合理的切缝高度9 m,预裂切缝角度15°。The 16011 working face of Zhaogu No.1 mine in Henan is taken as the engineering background, parameters of gob-side entry retaining formed by roof cut and pressure releasing are mainly researched. Different of hight and angle are analyzed by numerical simulation of FLAC3D to show the changes of stress above the tunnel. From what has been discussed above,the hight of 9 m and the angle of 15 degrees are key parameters of 16011 working face.

关 键 词：切顶卸压 沿空留巷 预裂切缝设计 

分 类 号：TD322[矿业工程—矿井建设]