论文部分内容阅读
我国矿井突水灾害调查研究表明,许多矿山位于河谷、山间盆地、平原、低山丘陵地带,水文地质条件复杂,而且矿床埋藏较深,大部分为井工开采,采矿井巷随时受到地表水、地下水威胁,矿井突水灾害时常发生,并造成巨大损失.不完全统计,全国发生过突水的矿山约70个,共计发生灾害性突水1300多次,其中严重突水灾害95次,大多数矿山的矿井突水灾害与碳酸盐岩有密切关系,以岩溶突水为主,其中以煤矿矿井突水灾害最为严重,其次为矽卡岩型金属非金属矿山,矿井突水的规模和致灾程度,自北而南、自东向西减弱.大型、特大型突水灾害主要分布在北方地区。
Research on mine water inrush disasters shows that many mines are located in valleys, mountain basins, plains and hilly areas, and the hydrogeological conditions are complex. Moreover, the deposits are deep buried, most of them are for underground work. In the incomplete statistics, there are about 70 mines in the country where water inrush occurred, a total of more than 1,300 catastrophic water inrush occurred, of which 95 were serious water-ram catastrophe, and large The water inrush disaster of most mines is closely related to carbonate rock, mainly karst water inrush, among which the water inrush disaster in coal mines is the most serious, followed by the skarn type metal and nonmetal mines, the scale of mine water inrush and The degree of disaster is weakened from north to south and from east to west. Large and super large water inrush disasters are mainly distributed in the north.