深井破碎围岩硐室底鼓治理研究  

Study on Treatment of Chamber Floor Heave in Broken Surrounding Rock of Deep Mine

作　　者：朱豪 彭文庆 邹师同 汪琦 ZHU Hao;PENG Wen-qing;ZOU Shi-tong;WANG Qi(School of Resource,Environment and Safety Engineering,Hunan University of Science and Technology,Xiangtan 411201,China)

机构地区：[1]湖南科技大学资源环境与安全工程学院,湖南湘潭411201

出　　处：《煤炭技术》2021年第5期4-8,共5页Coal Technology

基　　金：国家自然科学基金面上项目(51974118);湖南省教育厅优秀青年项目(18B226)。

摘　　要：江西省的高坑煤矿中的暗斜井机头硐室开挖后的底鼓现象十分严重,采用传统的衬砌锚杆支护后仍然不满足设计要求。通过现场调研,结合FLAC3D进行建模,分析注浆加固之前与注浆加固之后的顶板和底板的垂直位移量、应力值、塑性区。最后分析对围岩遇水后产生软化、泥化与膨胀等不良现象以及注浆的加固效果。研究结果表明:注浆能够提高裂隙发育部位的强度和岩体的完整性,从而保证了煤矿的安全生产。In Gaokeng coal mine in Jiangxi province, the bottom heave phenomenon after excavation of the head chamber of the inclined shaft with dark belt is very serious, and the traditional lining bolt support still fails to meet the design requirements. The vertical displacement, stress value and plastic zone of roof and bottom plate before and after grouting reinforcement are analyzed through field investigation and modeling combined with FLAC3 D. Finally, analyze the adverse phenomena such as softening, sludging and swelling of surrounding rock and the reinforcing effect of grouting. The research results show that grouting can improve the strength of fracture development site and the integrity of rock mass, thus ensuring the safe production of coal mine.

关 键 词：硐室 渗透 注浆加固 

分 类 号：TD354[矿业工程—矿井建设]