摘要
高预应力锚杆体系是锚杆支护技术发展的方向，它可以保证围岩和钢材变形匹配，充分发挥各自的支护能力。文章分析了预应力钻杆体系作用机理，并用计算和现场实例证明了预应力锚杆体系的优越性。最后提出了进入预应力锚杆体系新阶段的十项措施。
Having introduced the three developing stages of rockbolt supporting technique:stages of single rock bolts ingroups,combined rock bolts and prestressed rock boitsystem,the paper points out the last one represcnts thetrend of developrnent,because it matches the deformationof the surrounding rocks with the steel rods to give fullsupporting role to both of them.The paper analyses itsadvantages by calculation and practical examples.Finally,the paper sets forward ten measures to meet the needs ofthe new developing stage.
出处
《矿山压力与顶板管理》
1995年第1期2-7,共6页
Ground Pressure and Strata Control
