摘要
为解决厚硬顶板失稳冒落对采场支架载荷的影响问题,采用动力学分析方法,根据动力系统能量守恒原理得出厚硬顶板初次失稳冒落3种模式及周期失稳冒落2种模式下采场支架动载荷的计算公式,基于所得计算公式对支架载荷进行分析,得出合理的采场支架选型方法.该研究成果为厚硬顶板采场矿压控制提供理论依据,为合理进行工作面支护设计提供参考.
The instability and collapse of thick and strong roof will result in problem with support load in working face. Using analytical method of dynamics, this study obtains the calculation formulas of support dynamic load in 5 cases based on the energy conservation principle in a dynamic system. According to the formulas obtained, the study analyzes the support dynamic load, and obtains a rational method for support selection. The study provides a theoretical basis for mining pressure control in working face with a thick and strong roof, as well as a reference for a better design of support and protection of working face.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2013年第1期24-28,共5页
Journal of Liaoning Technical University (Natural Science)
基金
国家重点基础研究发展计划(973计划)资助项目(2007CB209400)
国家自然科学基金重点资助项目(50834004)
关键词
厚硬顶板
支架动载荷
矿压控制
动力学
失稳
近水平煤层
支护设计
能量守恒
thick and strong roof
support dynamic load
mining pressure control
dynamics
instability
flat seam
support design
energy conservation
