反井钻井法在煤矿通风竖井施工中应用及技术研究

随着经济的发展，煤炭行业出现了迅猛的发展形势，对于矿井建设也进入了新的阶段，煤矿开采的发展对矿井建设提出了更高的要求。在煤矿建设和生产过程中需要很多连通上下水平的垂直井和斜井，如井筒、通风井、煤仓、溜煤眼、泄水孔等，由于施工条件的限制或从提高工效、节省通风、降低成本考虑，多采用反井钻井法，从下水平巷道或硐室向上掘进一个小断面导井与上水平贯通，解决了通风、排水、排矸等问题后，再从下向上刷大到所需直径的施工竖井工艺和技术。

Application and technical research of reverse well drilling method in construction of ventilation shaft in coal mine

With the development of economy，the coal industry has developed rapidly，and the mine construction has entered a new stage，the development of coal mining has put forward higher requirements for mine construction.In the process of coal mine construction and production，there are many vertical and inclined wells that connect the upper and lower levels，such as wellbore，ventilating well，coal bunker，coal sliding hole and draining hole，due to the limitation of construction conditions or consideration of improving work efficiency，saving ventilation，and reducing costs，more anti-well drilling methods are used to dig a small section of guide wells and upper levels from the lower level roadway or chamber，and solve the problems of ventilation，drainage，and discharge，etc.，the technique and technique of the construction shaft which can be expanded from the bottom up to the desired diameter.