华北地区矿井突水事件的历史资料表明,与突水事件有关的主要水文地质因素是:(1)采矿工作面承受的底板含水层的水头压力;(2)采矿工作面与底板含水层之间相对隔水层的厚度及其岩性组合;(3)采矿工作面所处的地质环境;(4)底板含水层的富水性。显然,上述(3)和(4)都是模糊概念。 Historical data on mine water inrush events in North China indicate that the major hydrogeological factors associated with water inrush events are: (1) the head pressure of the floor aquifer undergone by the mining face; and (2) between the mining face and the floor aquifer The relative impermeable layer thickness and its lithology combination; (3) the geological environment in which the mining face is located; and (4) the water-bearing capacity of the floor aquifer. Obviously, the above (3) and (4) are fuzzy concepts.