轻型放顶煤液压支架的改造  

Transformation to light weight hydraulic caving support

作　　者：王树青 孙孚军 魏文华 马树林 连业涛 

机构地区：[1]龙口矿务局北皂煤矿,山东龙口265700

出　　处：《煤矿机械》2001年第9期57-58,共2页Coal Mine Machinery

摘　　要：介绍北皂煤矿合理确定轻放支架技术改造方案及技术参数 ,成功应用轻放工艺 ,取得较好经济效益 。This paper introduces that Beizao coal mine makes rationally sure about the technical projection and technical parameters of transformation to light weight hydraulic caving support.The technology of light weight hydraulic caving is successfully used.This transformation gives good economic benefit and some experiments that can be minored to the similar mine.

关 键 词：轻型放顶煤液压支架 单摆杆 “三软”地层 支护强度 比压 技术改造 初撑力 

分 类 号：TD355.4[矿业工程—矿井建设]