针对梧桐庄矿在-470水平北翼轨道巷井下施工超前钻探期间，钻孔施工至煤层底板伏青灰岩层位，出现局部区域性高水位、高水温及大水量异常、存在突水隐患的问题，提出井下钻探探查治理工程与地面区域治理工程相结合的防治水总体技术路线。通过对施工钻孔测斜和放水实验，结合井上、下钻孔资料综合分析，查明掘进前方水文地质情况，分析研判水害类型，排除了水文异常区域，探查发现1条在大青灰岩层位发育H=21 m的隐伏断层，并判断断层不导（含）水，无需留设防水煤柱。通过井下钻孔和区域治理钻孔注浆封堵各含水层裂隙，弱化了含水层富水性，增强了底板隔水能力。该技术为类似矿井工作面的防治水工作提供了借鉴。

In view of the problems of local regional high water level, high water temperature and large water volume anomalies and hidden dangers of water inrush in Wutongzhuang Mine during the advanced drilling period of the underground construction of the -470 level north wing track roadway, the drilling construction was carried out to the underlying limestone layer of the coal seam floor, and the overall technical route of water prevention and control combining the underground drilling exploration and treatment project with the ground regional treatment project was proposed. Through the construction borehole inclinometer and drainage experiment, combined with the comprehensive analysis of the borehole data above and below the well, the hydrogeological conditions in front of the excavation were identified, the types of water disasters were analyzed and judged, and the hydrological anomaly area was excluded. The exploration found a hidden fault with H = 21 m developed in the Daqing limestone layer, and it was judged that the fault did not conduct ( contain ) water, and there was no need to set up waterproof coal pillars. Through underground drilling and regional control drilling grouting, the fractures of each aquifer were blocked, the water abundance of the aquifer was weakened, and the water isolation capacity of the floor was enhanced. This technology provided a reference for the prevention and control of water in similar mine working faces.