Hydrogeological Condition Analyses of Shatan's Nianfa Coal Mine in Huairen, Guizhou Province

摘要

Hydrogeology condition of Shatan's Nianfa Coal Mine in Huairen, Guizhou province was analyzed in this paper. The study shows that: 1) the main water bearing strata of mineral deposit are Longtan group (P3l) and Maokou group (P2m) with the water-abundance weak to moderate; 2) the coal mine takes water filling in karst aquifer as the principle thing, with water inrush from seam floor and mineral deposits with karst water of simple but partial medium hydrogeological conditions as the main thing; 3) Regional structure mainly is faultage; Most place of coal mine located in the hydrogeological unit drainage area with the layer distributed as single and inclined shape and the structure has no feature of rich water; 4) Within the mining area, terrain landform is complex with mining hydrogeological conditions is simple partial medium.