南桐二井采区突水动态研究

RESEARCHES ON REGIME OF WATER INRUSH IN ALLOTMENT NO.2 OF NANTONG COAL MINE

摘要: 将南桐煤矿二井的突水动态划分为纯衰减型、波动衰减型、季节波动衰减型、波动稳定型和逐渐增大型5类,它们分别对应于采区与浅层长兴灰岩含水层、蒲河及大气降水的不同连通程度与方式。

Abstract: The regime kinds of water inrush in allotment No. 2 of Nantong Coal Mine can be divided according to their characteristics into five types:pure attenuation, fluctuating attenuation, seasonal fluctuating attenuation, fluctuating stable and enhancement type. Different type indicates different degree and route of connection among mining area and shallow Permian karst aquifer, Puhe river, and precipitation.