论文部分内容阅读
一、复采概况 1、复采的由来 井陉煤矿是一个具有近八十年开采历史的老矿。解放前,据有关资料记载已采出煤量1,931万吨。解放后从1954年开始,先后扩建了一矿底区和二矿北井,恢复了三矿一号井和四矿荆蒲兰立井,1956年又新建了五矿赵村铺斜井。全局当时的总设计能力为216万吨。1958年以后,随着开采强度的大幅度增加(59～61年三年平均原煤产量达386万多吨),矿井服务年限也随着迅速缩短。因此,在矿井老、资源少和地质条件复杂的情况下,怎样才能维持一定的合理生产水平和最大限度地延长矿井寿命,已成为我们急需解决的主要矛盾。1956年以后,我们除了又开凿赵庄岑、愚公、南斜井、河滩、南关、较场六对有限储量的小型矿井外,在已采区找煤复采就成了我们局持续生产的有效措施和重要途径。所以,1965年以后,各矿都对已采区找煤复采和不断改革采煤方法开始了大量的研究与实践工作。
First, recapture Overview 1, the origin of recoverability Jingtai coal mine is a mine with nearly 80 years of mining history. Before the liberation, according to the relevant records, 19.31 million tons of coal were recovered. Since liberation from 1954 onwards, it has successively expanded the basement of the First Mines and the North Well of the Second Mines, restored the No.3 Well Mine and the Fourth Mines Jingbaolan Well, and built the Minmetals Zhaocunpu Inclined Well in 1956. The overall current design capacity was 2.16 million tons. After 1958, with the drastic increase of mining intensity (the average coal output in the three years of 59-61 reached more than 3.86 million tons), the service life of mines also shortened rapidly. Therefore, how to maintain a reasonable level of production and extend the life of the mine to the maximum extent has become a major contradiction that we urgently need to solve in the old mine with few resources and complicated geological conditions. After 1956, apart from digging small coal mines with limited reserves of Zhaozhuang Cen, Yu Gong, South Slope Well, Hetan, South Guan and Lukchang, finding coal recovery in the mining area has become an effective measure for our continuous production. Measures and important ways. Therefore, after 1965, all the mines started mining a great deal of research and practice on the methods of coal recovery and coal mining in the mining area.