摘要
借鉴煤层底板隔水层阻水性能的相关研究成果,建立了煤层底板弹性岩梁力学模型,分析了底板隔水层应力分布特征,讨论了底板破断后的结构及其稳定性,提出了煤层底板突水发生的判据,对矿井防治水具有指导意义。
With the references to the related study achievements on the water resistance performances of the water insulation layer under the seam floor,a mechanics model of the elastic rock beam under the seam floor was established.The stress distribution features of the water insulation layer under seam floor were analyzed.The post failure structure and the stability of the seam floor were discussed.The criteria of the water inrush occurred from the seam floor was provided and could have the guidance to the mine water prevention and control.
出处
《煤炭工程》
北大核心
2011年第8期75-77,共3页
Coal Engineering
基金
高等学校博士学科点专项科研基金项目(200803610001)
高等学校博士学科点专项科研基金项目新教师类(20093415120001)
安徽省优秀青年科技基金资助项目(10040606Y31)
安徽高校省级自然科学研究重点资助项目(KJ2009A66)
关键词
弹性岩梁
底板隔水层
应力分布
破断后结构
elastic rock beam
water insolated layer under floor
stress distribution
post-failure structure
