一、前言 煤矿中在煤层附近有灰岩层时,当其受地下水的作用,形成错综复杂的充水溶洞,通过断层或裂隙将溶洞水与煤层构成水力联系,或溶洞灰岩层距开采煤层较近时,都有可能发生矿井突然涌水甚至淹井的事故。这对工人的生命安全和正常开采具有很大威胁。不仅如此,由于地下溶洞水不易治理而使许多的煤层也无法开采。如在江南缺煤的江西、湖南一带,地下溶洞水很大,不根治 I. INTRODUCTION In the coal mine, when there is a limestone layer near the coal seam, when it is affected by groundwater to form an intricate filled water caverns, water and coal seam are hydraulically connected through fault or fracture, or the limestone caverns are close to the coal seam , There is a possibility of a sudden flooding or even flooding of the mine. This poses a great threat to the safety of life and normal mining of workers. Not only that, many of the coal seams can not be mined because underground caverns are not easily managed. As in the lack of coal in Jiangxi Province, Jiangxi, Hunan area, a large underground cave water, not cure