煤矿安全2012，Vol.43Issue(7)：42-44,51,4.
兴隆庄煤矿煤层底板破坏特征研究
Study on the Failure Characteristics of Coal Seam Floor in Xinglongzhuang Coal Mine
摘要
Abstract
Taking the condition of fully - mechanized working face in Xinglongzhuang coal mine as background, using mutual authenti- cation method of numerical simulation and live ultrasound imaging test, a comprehensive comparative study on the failure characteristics of coal seem floor under the mining is made. The numerical simulation indicats that the vertical stress is ＂saddle - shaped＂ distribution and the shear stress is roughly ＂butterfly - shaped＂ distribution in the workface. Field measurement studies show that the fracture de- velopment is obvious within the 16 m range under the seam floor of 10302 mechanized caving face, but the fracture development is rela- tively less exceed the range of 16 m. The depth of defoimation failure of coal seam floor is 16 m by the comprehensive analysis, and the results provide a reference for safety mining and mine water disaster control of Xinglongzhuang coal mine under the same condition.关键词
数值模拟/超声成像/垂直应力/剪应力/破坏特征Key words
numerical simulation/ultrasonic imaging/vertical stress/shear stress/failure characteristics分类
矿业与冶金引用本文复制引用
赵连涛,岳尊彩,于旭磊,张光明,张蕊..兴隆庄煤矿煤层底板破坏特征研究[J].煤矿安全,2012,43(7):42-44,51,4.基金项目
中央高校基本科研业务费专项资金资助项目 （）
