摘要
在１９８４年坚硬顶板分析的基础上＾［１］，根据工作面顶板岩层断裂前后的力学特征，建立了“弹性板与铰接板结构“力学模型。由该力学模型导出了回采工作面板来压步距、来压强度和支架载荷计算的解析表达式，并对一些典型工程实例进行了验算，理论计算与现场实测结果基本吻合。这一研究成果为回采工作面支护方案设计、顶板来压步距和来压强度计算预测以及支架工作阻力确定等方面提供了一种新方法。
A mechanical model, 'elastic slab and articulated slab structure' was established based, on analysis of competent roof thin-slab made in 1984 and based on the mechanical characteristics of roof before and after fracture. And the weighting interval of roof in the face,weighting strength and an expression for calculating the support load were deduced on the basis of the model. And the calculated data were verified by some typical projects, and in conformity with the measured data. This study provides a new method for design of face supports, for prediction of weighting interval and calculation of weighting strength and working resistance of support etc.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1993年第5期13-19,共7页
Journal of China Coal Society
关键词
采场
支护
矿山压力
计算
calculation of ground pressure in the workings
support load
strong strata
roof structure
longwall face
