液压支架初撑力与工作面矿压显现关系研究  

Study on Relationship Between Initial Support Force of Hydraulic Powered Support and Mine Strata Pressure Behavior of Coal Mining Face

作　　者：万峰[1] 张洪清[1] 韩振国[1] 

机构地区：[1]华能扎赉诺尔煤业有限责任公司,内蒙古满洲里021412

出　　处：《煤炭科学技术》2011年第6期18-20,25,共4页Coal Science and Technology

基　　金："十一五"国家科技支撑计划资助项目(2008BAB36B01;2008BAB36B12)

摘　　要：针对铁北矿右三片工作面压架事故中暴露出来的支架初撑力较低的问题,采用现场实测、理论分析等手段,实测得到了工作面约60%的支架初撑力小于3 000 kN,分析了支架初撑力对顶板下沉量、支架工作阻力、动载系数的影响关系。研究表明支架初撑力对控制直接顶稳定性和减少顶板破坏程度具有重要作用,初撑力较低会导致顶板的早期离层与破碎,高初撑力有利于支架性能的充分发挥,保障工作的安全、高效生产。According to the low initial support force problem occurred in the powered supports jammed accident in the Yousanpian coal mining face of Tiebei Mine,with the applications of the site measurement,theoretical analysis and other means,the initial support force of the 60% powered supports measured at the coal mining face was lower than 3 000 kN and the influence relationship of the powered support＇s initial support to the roof subsidence value,the working resistance of the powered support and the dynamic coefficient was analyzed.The study showed that the initial support force of the powered support would have an important role to control the stability of the direct roof and to reduce the failure degree of the roof.The low initial support force could cause an early separation and broken of the roof and the high initial support force could be favorable to fully play the performances of the powered support and could ensure the safety operation and high efficient production.

关 键 词：液压支架 初撑力 顶板控制 矿压显现 

分 类 号：TD323[矿业工程—矿井建设]