砂岩分布特征及其对K3砂岩的富水性影响

Sandstone Distribution Characteristics and Its Effects to K3 Sandstone Water Abundance

卧龙湖煤矿K3砂岩是指作为二叠系上下石盒子组分界线的砂岩,该砂岩往往厚度较大。由于该矿K3砂岩分布不均匀,且对K3砂岩的认识不足造成卧龙湖煤矿在主井建造过程中穿过K3砂岩时发生2次突水事故。针对这一情况,系统分析卧龙湖煤矿K3砂岩的厚度、岩性特征并定性的分析其对K3砂岩富水性的影响,对类似矿区的水害防治工作具有一定的参考价值。

K3 sandstone was the dividingline of Upper Shihezi formation and Lower Shihezi formation of the Permian series,the thickness of K3 sandstone was of ten large.Because of the uneven distribution of the K3 sandstone in Wolonghu coal mine and the deficiency understanding of K3 sandstone,water inrush accident happened twice when going through the K3 sandstone in Wolonghu coal mine in the construction of main shaft,based on the situation,the thickness of sandstone and lithologic features of the K3 sandstone in Wolonghu coal mine,and the effect to the water abundance were analyzed,which had a certain reference value for similar water disaster prevention and control work in mine.