摘要
在现场观测的基础上,建立了直接顶面接触块体结构的物理力学模型,并分析了其力学实质,提出了面接触块体结构的力学定义.同时基于块体理论中确定关键块体的思想,运用矢量分析法确定了面接触块体结构中的关键接触面,对其进行了力学分析,从而深入研究了面接触块体结构的力学特性,获得了结构整体所受的挤压力和摩擦力的解析式,并且针对大阳泉煤矿8113综放工作面进行了实例计算,所得结果与现场矿压观测结果基本吻合.
The model of the face-contacted blocks structure was established through observation on the spot, its mechanics substance was analyzed and its mechanics definition was proposed. The key contacted-face was founded in the structure of face-contaced blocks by the vector analysis in block theory and mechanics analysis on the face- contacted blocks structure was executed and its mechanical properties was particular studied. As a result, the solution on the squeezing force and the friction for the structure were got. At the same time, an example was calculated and the solution was proved. In a word, the mechanism of the face-contacted blocks structure was put forward in macro, the theory accordance to further study the instability and the effection of the structure of the face-contacted blocks was provided. Calculation example was executed in Dayangquan Mine No. 8113 fully mechanized workingface, the results and observations are basically anastomosis.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2008年第1期33-37,共5页
Journal of China Coal Society
基金
国家自然科学基金资助项目(50704024)
山西省青年科技研究基金资助项目(2007021024)
太原市技术创新计划(大学生创新创业专项)资助项目(07010746)
关键词
上覆岩层
块体结构
力学机理
overlying strata
the structure of face-contacted blocks
the mechanism
