华丰井田4煤层顶板砾岩水突出影响因素分析  

An Analysis of Factors Affecting Water-Inrush from the Number 4 Coal-Seam Roof Conglomerate in the Huafeng Coal Mine

作　　者：施龙青[1] 于小鸽[1] 魏久传[1] 郭建斌[1] 翟培合[1] 李敬法[2] 李功强[2] 

机构地区：[1]山东科技大学地质科学与工程学院,山东青岛266510 [2]新汶矿业集团,山东新泰271233

出　　处：《中国矿业大学学报》2010年第1期26-31,44,共7页Journal of China University of Mining & Technology

基　　金：山东省自然科学基金项目(Y2007F46);高等学校博士学科点专项科研基金项目(20070424005);国家自然科学基金重点项目(50539080);教育部科学技术研究重点项目(108158);长江学者和创新团队发展计划

摘　　要：在分析砾岩分布特征及其水文地质特征的基础上,以矿山压力控制理论为指导,运用岩层沉降理论推断了华丰矿1409工作面在采厚为6.5m的情况下,导水裂隙带发育高度为96.2m,揭示了导水裂隙能够导致顶板砾岩水突出.结合矿山压力观测资料和顶板突水量资料,阐述了矿山压力和顶板砾岩突水突出之间的因果影响关系.根据2407工作面冲击地压监测资料,阐明冲击地压对顶板突水的促进作用.建立了顶板水沿工作面下平巷突出运移的模型,阐明了斑裂线是导致砾岩水大量突出的主要导水通道.An analysis based on rock pressure control theory and the distribution and hydro-geological characteristics of the conglomerate above the Huafeng Coal Mine number 1409 working face suggests the fracture zone allowing water inflow is 96.2 m thick while mining the coal layer itself is 6.5 m thick. This fracture zone can lead to water-inrush through the roof. The underground pressure data and roof water-inrush data are correlated. Monitoring the number 2407 working face for rockburst suggests a role for rockburst in promoting water-inrush. A drift model of water migration along the working face below a roadway is described. ＂Zebra fractures＂ provide the main passage way for water where large amounts of water-inrush occur through the roof.

关 键 词：顶板砾岩 突水机理 矿山压力 冲击地压 斑裂线 

分 类 号：TD324[矿业工程—矿井建设]