摘要
在简评现有煤层底板突水预测理论的基础上，提出了老底板模型。参照采场老顶初次来压步距的构成，论述了老底板极限破除步区ａ的构成，得出了煤层底板穷水与隔水层、含水层自身性质及开采边界条件的关系、最后提出了利用以往突水资料预测同类或相邻工作面突水与否的反演方法，使预测结果更加令人信服。
On the basis of discussion on the predicting theory of water-inrush from mining noor,the authors put forward a main floor model.In the light of the first weighing span formula of main roof, the formation of the limit fracture span of main noor is discussed,and the relationship between the water-inrush from mining floor and the characteristics of aquifuges and aquiefers as well as the mining boundary conditions is made clear. Finally,a converse prediction mdthod is proposed in which the past information of water-inrush is used for predicting whether the water-inrush happen or not in the similar q adjacent working faces.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
1995年第4期34-38,共5页
Coal Geology & Exploration
关键词
突水
底板
预测
煤层
water-inrush
floor
prediction
