Xi'an Research Institute Company Limited,China Coal Technology and Engineering Group Shaanxi Provincial Key Lab of Mine Water Disaster Prevention and Control Technology

为在突水发生后快速判断突水通道类型,提出通过突水量演化特征识别煤层底板突水通道的方法。依据煤层底板构造发育情况及其与采掘活动的空间关系,将煤层底板突水通道划分为完整底板通道、非贯通型通道及贯通型通道3种类型。分析了3种类型突水实例,获得了不同突水通道煤层底板突水水量演化特征。再依据水量演化特征的煤层底板突水通道识别方法,凭峰前突水量演化及峰后水量衰减特征,判断突水通道类型。且采用三维相似模拟平台,模拟了1例岩溶陷落柱突水过程。结果表明:该次突水通道为贯通型通道,与突水通道识别模型分析结果一致,不同突水通道具有显著的突水量演化规律差异,水量演化特征能够较准确地反映突水通道的演化过程。

in order to rapidlyjudge the type of the water inrsh channel.according to the structure development con.diton of the seam foor and the space relationship between the mining and driving activties.the water inrush chanel of the sean foor was divided into a completed foor channel, non runing though type chanmnel andrunning through chanel. The three type water inrush cases were alyzed and the quantty evolution features of the water nrush from sean foor with different water inrush chanel were obtained. Based on the quantity evoluton featues,the method todistinguish the water inrush channels in the sean foor was provided and based onthe water inrush evltion before the peak occured and the water quantityattenuation features afier the peak o.cured ,the water inorush chanel ype was judged.A Dsinilar simulation platform was appied to simulate a water inrush process of a karstsnkhole. The resuts showed that ths waer inrush chanel as arumning thoughchannel was the same to the analysis results of the water inrush distnguishing model,th d fferent water inrush chanel would have obious dittences of the wateriush quantity evolution law and the water quantity evolution features could accurately refiect the evolution process of the water inrush channe!

中国煤炭科工集团西安研究院有限公司科技创新基金面上资助项目(2015XAYMS17)；