摘要
通过对百善煤矿64采区强风氧化超薄基岩区域地质及水文地质条件进行系统分析,以实验室测试、现场实测为依据,重点研究分析了风化基岩、隔水层和含水层的物理特征及强风化岩石泥化对"两带"发育高度和渗透性的影响,并设计了合理的安全保护煤柱。实践表明:超薄基岩区域强风化岩石软弱、泥化、风化对工作面回采"两带"发育高度有降低作用,比较有利于工作面的安全回采。
This paper systematically analyzed the geological and hydrological conditions of 64 mining area in Baishan mine and tested the physical and mechanical property of weathering bedrock, aquiclude and aquifer. Then,The influence of rock argillization on roof fracture and its permeability were studied and the minimum protective rock pillar was obtained accordingly. Field practice shows that： the softening, argillization and weathering of rock could reduce the roof fracture height,which be beneficial to coal miming under such area.
出处
《中国矿业》
北大核心
2013年第10期84-87,共4页
China Mining Magazine
关键词
强风氧化超薄基岩
冒落带
导水裂隙带
隔水性
weathering bedrock
caving zone
water flowing fractured zone
water-resisting property
