大倾角综放面支架三维力学分析及其稳定性控制  

Three-dimensional Mechanics Analysis and Stability Control of Hydraulic Support in Top-coal Caving Face with Large Dip Angle

作　　者：仝矿伟[1] 夏朝科 万志军[3] 牛国良 毛琦 

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221116 [2]湖州新开元碎石有限公司,浙江湖州313022 [3]中国矿业大学矿业工程学院深部煤炭资源开采教育部重点实验室,江苏徐州221116 [4]河南能源义马煤业集团义络煤业有限责任公司,河南宜阳471600

出　　处：《煤矿机械》2016年第6期62-65,共4页Coal Mine Machinery

基　　金：973计划项目(2014CB046301)

摘　　要：在充分分析大倾角综放支架受力特征的基础上,引入侧护板推力、支架因陷入底板而受到的阻力,以及煤矸滑动摩擦力等外力,建立了支架三维力学模型。通过支架的防下滑、防倾倒、以及防扭转力学分析,得到支架稳定性的主要影响因素,提出了提高支架稳定性的技术措施,并在义络煤业得到较好的应用。Based on sufficient mechanics characteristic analysis of a support in top-coal caving face with large dip angle, a three-dimensional mechanics model was established with three new introduced forces besides traditional forces, i.e. the side thrust of side protecting plate installed on adjacent support, resistance of floor to support for support falling into soft floor, and sliding friction of coal and rock on shield beam and tail beam. With mechanics analyzing of glide preventing, dumping preventing, and twist preventing, the main influence factors to stability of support were obtained, and then the technical measures to raise stability of support were presented. These technical measures were adopted in Yiluo coal mine and significant effect was gained.

关 键 词：液压支架 稳定性 大倾角 综放面 

分 类 号：TD355[矿业工程—矿井建设]