摘要
根据煤层顶板要求控制的压力，将所需的聚氨脂浆液通过钻孔注入煤岩层裂隙中，将其扩散范围内的破碎煤岩层胶结与原岩形成整体，起到固结围岩和全长锚固的作用，充分调动围岩本身的支撑能力，确保采掘工作面的安全生产。
According to the controlling pressure required by roots of coal seam, the polyurethane mud was poured into the fissure of coal rocks, resulting in cementing of fractured coal rocks within the extent of mud spreading and connecting together with the primary rocks. So it makes full use of the supporting of country rocks and ensures the successful production of digging plane.
出处
《西部探矿工程》
CAS
1997年第3期35-38,51,共5页
West-China Exploration Engineering
