地面水力压裂坚硬顶板治理强矿压技术研究  

Research on Surface Hydraulic Fracturing Hard Roof Administer Technology for Strong Mine Pressure

作　　者：蔡红博 Cai Hongbo(Madaotou Coal Industry Co.,Ltd.,Shanxi Datong 037100)

机构地区：[1]马道头煤业有限责任公司,山西大同037100

出　　处：《山东煤炭科技》2023年第5期167-169,173,共4页Shandong Coal Science and Technology

摘　　要：针对马道头煤业特厚煤层综放工作面开采过程中,因上覆坚硬顶板大面积垮落造成的强矿压显现问题,提出采用地面水力压裂的治理方法,通过在工作面上覆地面施工垂直钻孔压裂目标层,以达到弱化坚硬顶板结构强度、减小顶板垮落步距的效果。采用该技术后,通过矿压观测和微震监测,工作面来压强度明显减弱,来压范围及持续时间显著减小。Aiming at the problem of strong mining pressure manifestation caused by the large area collapse of the overlying hard roof during the mining process of the extra thick coal seam fully mechanized top coal caving face in Madaotou Coal Industry,a surface hydraulic fracturing administer method is proposed.By constructing vertical drilling and fracturing the target layer on the overlying surface of the working face,the effect of weakening the strength of the hard roof structure and reducing the roof collapse step distance is achieved.After adopting this technology,through rock pressure observation and microseismic monitoring,the strength of the working face's pressure is significantly reduced,and the range and duration of the pressure are significantly reduced.

关 键 词：强矿压治理 地面水力压裂技术 水力喷砂射孔压裂工艺 

分 类 号：TD327.2[矿业工程—矿井建设]