顶板突水对冲击地压的影响  

Influencing action of water-inrush from roof on rockburst

作　　者：施龙青[1] 翟培合[1] 魏久传[1] 朱鲁[1] 尹会永[1] 李敬法[2] 李功祥[2] 李术才 

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 [3]山东省岩土与结构工程技术研究中心,山东济南250061

出　　处：《煤炭学报》2009年第1期44-49,共6页Journal of China Coal Society

基　　金：山东省自然科学基金资助项目(Y2007F46);教育部博士学科点专项科研基金资助项目(20070424005);国家自然科学基金重点资助项目(50539080)

摘　　要：在分析4煤层开采顶板突水水源的基础上,揭示了矿山压力、冲击地压同顶板突水之间的关系,探讨了煤层开采过程中顶板突水对促进冲击地压形成的影响作用机理;基于物理流变学和断裂力学理论,提出了砾岩粒间隙中的水流失导致砾岩粒界面附近多层次应力局部集中,造成砾岩产生新的断裂,形成多层次冲击地压,促进顶板斑裂线扩展的机制,阐明了冲击地压和顶板突水互为影响的因果关系,从理论研究和现场监测2个方面得出了华丰煤矿4煤层开采深度大于520 m时容易形成冲击地压的结论.Based on the analysis of roof water-inrush source, the relationship between water-inrush from roof and underground pressure and rockburst was revealed. The influencing action mechanism of water-inrush from roof accelerating forming rockhurst was studied. According to physics flowing change theory and fracture mechanical theory, the mechanism was put forward that the loss of water in conglomerate grains gap caused multi-scale underground pressure centralization, made conglomerate broken, and formed multi-scale impacting underground pressure, which accelerated roof strata splitting zone development. The each other influencing cause and effect relationship between roekhurst and water-inrush from roof was clarified, based on the theory research and spot monitor, the conclusion was gotten that when the depth of mining No. 4 coal layer in Huafeng Coal Mine is over 520 m, the rockburst is easy to form.

关 键 词：顶板突水 冲击地压 矿山压力 斑裂线 华丰煤矿 

分 类 号：TD324[矿业工程—矿井建设]