坚硬顶板综放工作面水力压裂初次放顶技术研究  

Study on Initial Caving Technology of Hydraulic Fracturing in Fully Mechanized Top-coal Caving Face with Hard Roof

作　　者：姚俊彪 张大明[2] 李刚[2] Yao Junbiao;Zhang Daming;Li Gang(Shanxi Hequ Jinshen Ciyaogou Coal Industry Co.,Ltd.,Shanxi Hequ 036500;College of Mining,Liaoning Technical University,Liaoning Fuxin 123000)

机构地区：[1]山西河曲晋神磁窑沟煤业有限公司,山西河曲036500 [2]辽宁工程技术大学矿业学院,辽宁阜新123000

出　　处：《山东煤炭科技》2022年第9期54-57,共4页Shandong Coal Science and Technology

基　　金：采动应力扰动下承压底板水岩耦合损伤致裂机理研究(资助号:51774165)。

摘　　要：针对磁窑沟煤矿13102工作面顶板坚硬难以垮落的问题,设计利用水压致裂方法对切眼进行切顶卸压,并且对压裂过程中压力变化进行了监测与分析。通过分析工作面顶板垮落情况,窥视顶板裂隙发育特征,对定向水压致裂效果进行了分析评价,结果表明采用水力压裂技术治理石灰岩坚硬顶板依然有效。Aiming at the problem that the roof of the 13102 working face in Ciyaogou Coal Mine is hard and difficult to collapse,the hydraulic fracturing method is designed to cut the cut hole to relieve pressure,and the pressure change in the process of fracturing is monitored and analyzed.By analyzing the roof collapse of the working face,peeping at the development characteristics of the roof cracks,and analyzing and evaluating the effect of directional hydraulic fracturing,the results show that the hydraulic fracturing technology is still effective in controlling the hard limestone roof.

关 键 词：采煤 坚硬 顶板 水力 压裂 

分 类 号：TD327.2[矿业工程—矿井建设]