预紧力作用下锚固体的形成特征及影响因素分析  

Study on Conformation Characteristics and Influence Factors of Anchored Rock with Pretightening Force Bolt

作　　者：焦建康 郑玉晶 

机构地区：[1]煤炭科学研究总院开采设计研究分院,北京100013 [2]天地科技股份有限公司开采设计事业部,北京100013 [3]河南焦煤能源有限公司演马庄煤矿,河南焦作454000

出　　处：《煤炭技术》2017年第6期52-54,共3页Coal Technology

基　　金：国家科技支撑计划资助项目(2012BAB13B02);国家自然科学基金煤炭联合基金重点资助项目(U1261211)

摘　　要：为了提高深部复杂条件巷道围岩锚固体的稳定性,采用数值模拟的方法研究了预紧力锚杆作用下锚固体的形成特征及影响因素。根据研究成果和李雅庄矿地质条件,提出高强预紧力锚杆(索)+W钢护板+锚网组合支护方案,矿压监测表明巷道支护效果明显。To improve stability of deep and complicated anchored rock, numerical simulation was used to study conformation characteristics and influence factors of anchored rock with pretightening force bolt. According to research results and geological conditions of Liyazhuang coal mine,proposes combined supporting scheme of high strength and pretightening force boh（eable）＋W steel panel＋ bolting net, mine pressure monitoring results show that the support scheme is effective.

关 键 词：预紧力 锚固体 支护应力 

分 类 号：TD353[矿业工程—矿井建设]