这篇报告是在1964年至1966年进行研究试验总结后写出的,虽然时间较早,但对于倾斜近距离开采解放层及抽放瓦斯,预防煤与瓦斯突出,保证矿井安全生产,在目前仍有其一定的现实意义.故现略予删减刊载,以供参考. This report was written after the conclusion of the research and study from 1964 to 1966. Although the time was earlier, at the present time, it is necessary for the mining of the liberated strata at a slant and gas drainage to prevent the outburst of coal and gas and ensure mine safety. Currently, There is still some practical significance. Therefore, the abbreviation is omitted for publication for reference.