论文部分内容阅读
采掘生产中日益广泛地采用物理化学方法提高巷道的稳定性。通过在有裂隙的岩体中预先打好的钻孔,压注入速硬化学溶浆,这时,由于充满裂隙硬化后化合物的附着力或机械楔紧作用,有裂隙的岩块变成一个整块,从而使其稳定性提高。 第十一个五年计划期间(1981～1985年),在顿涅茨、卡拉干达、库兹涅茨等煤田的一些矿井中,通过向岩体中压注速硬化合物,使不稳定岩层得到了加固。顿涅茨和卡拉干达煤田所完成的加固岩体的工程量最大。这一工艺在8个煤炭生产联合公司的19个矿井中进行了工业试验和实际应用。
The growing use of physical and chemical methods to increase the stability of the roadway in the mining production. Through pre-drilled holes in the fractured rock mass, the quick-setting chemical solution is injected into the fractured rock mass. At this time, the fractured rock mass becomes an integral part due to the adhesion or mechanical wedging effect of the compound after the fracture has been hardened Block, thus making it more stable. During the 11th Five-Year Plan period (1981-1985), in some mines in the Donetsk, Karaganda, Kuznets, and other coal mines, unstable rock formations Got reinforcement. The bulk of the reinforcement rock mass completed by the Donets and Karaganda coalfields is the largest. The process was tested industrially and practically at 19 mines at eight coal production syndicates.