本人从1956年参加工作，由基层到市级领导机关，一直从事煤矿中的矿井通风、防尘、防瓦斯、防灭火（简称一通三防）工作。40年中，徐州地区矿山系统共发生死亡3人以上的重大“一通三防”事故19起，死亡370人，伤175人。其中瓦斯爆炸事故4起，死亡69人；伤64人；瓦斯窒息事故4起 I joined the work from 1956, from the grassroots to the municipal leading organs, has been engaged in coal mine ventilation, dust prevention, anti-gas, fire prevention and extinguishing (referred to as a pass three defenses) work. In the 40 years, a total of 19 “one through three” major accidents involving more than 3 people died in the mining system in Xuzhou area, killing 370 people and wounding 175 others. Among them, four were gas explosion accidents, 69 were dead, 64 were wounded, and 4 were gas suffocation accidents