2005年8月7月13时30分,广东省梅州市兴宁市黄槐镇大兴煤矿发生透水事故,123名矿工被困井下,事故正在抢救中。大兴煤矿原为地方国有煤矿,1999年破产改制为民营股份制企业,由于开采30年,该矿上部老采空区存在大量积水。改制后经有关部门设计留设条带隔水煤柱,对深部煤层进 At 13:30 on August 2005, water leakage occurred at Daxing Coal Mine, Huanghuai Town, Xingning City, Meizhou City, Guangdong Province. 123 miners were trapped underground and the accident was under rescue. Daxing Coal Mine was formerly a state-owned coal mine. In 1999, bankruptcy was restructured into a private joint-stock enterprise. Due to the exploitation for 30 years, there was a large amount of stagnant water in the old goaf in the upper part of the mine. After restructuring, the design of the relevant departments to leave a strip of water-proof coal pillar, into the deep seam