摘要
根据复合岩梁理论，推出了开采沉陷中层面滑移函数和层面滑移判断式。获得了层面滑移规律：即当弹性模量一定时，随主要影响半径ｒ的增大和最大下沉值减小，滑移间距增大；当ｒ和最大下沉值一定时，随着弹性模量的增加，滑移间距减小；随层面抗滑力的增加，滑移间距增大。研究了层面滑移量、滑移范围与采厚、弹性模量、主要影响半径及采空区位置的关系。结合相似材料模型观测结果，证明了所给公式和规律的正确性。
Based on theory of composite rock beam, a function and a formula for stratification plane gliding was deducted. And the rules of gliding are found as the following: ① when the elastic modulus is given, the gliding interval increases with the increase of major radius of influence, r and reduce of maximum surface subsidence ;② when r and maximum subsidence is given, the gliding interval reduces with the increase of elastic modulus; ③ the gliding interval increases with the increase of anti-gliding force. The relations are studied between amount and extent of gliding and mining height, elastic modulus, major influencing radius as well as location of the mined out area. The formula and rules are proved to be correct based on the measured data from a model built with equivalent materials.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1995年第4期380-384,共5页
Journal of China Coal Society
基金
煤炭科学基金
关键词
开采沉陷
层面滑移
矿山
mining subsidence, gliding of stratified plane, rockmass movement
