全预应力锚杆机械锚固装置的设计与应用
投稿时间：2005-12-20  修订日期：2006-04-18  点此下载全文
引用本文：王贯东,成云海,付志亮.全预应力锚杆机械锚固装置的设计与应用[J].钻探工程,2006,33(5):42-43.
WANG Guan-dong,CHENG Yun-hai,FU Zhi-liang. Design and Application of Mechanical Anchoring Device of Full Pre-stressed Bolt[J]. Drilling Engineering, 2006,33(5):42-43.
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作者单位E-mail
王贯东 山东省新泰市新汶矿业集团公司翟镇煤矿  
成云海 山东科技大学矿山灾害预防控制省部共建教育部重点实验室 chengyunhai2005@126.com 
付志亮 山东科技大学矿山灾害预防控制省部共建教育部重点实验室 fuzhl@eyou.com 
中文摘要:针对目前地下工程中广泛使用的螺纹钢锚杆支护存在的预紧力差、预应力长度短的问题，设计制造了全预应力螺纹钢锚杆机械锚固装置，有效加大了锚杆预应力段的长度，提高了锚杆的预紧力，解决了施工锚杆后因爆破震动或矿压显现造成的托盘反复松动问题。现场应用和矿压观测表明，全预应力锚杆支护能适应恶劣条件，有效控制围岩的变形。
中文关键词:全预应力  机械锚固装置  高预紧力  围岩稳定性
 
Design and Application of Mechanical Anchoring Device of Full Pre-stressed Bolt
Abstract:Aiming at screw steel bolt which is widely used in underground engineering and has some disadvantages such as low pre-tension and short pre-stressed area, the author designed mechanical anchoring device. It improved obviously the length of pre-stressed and pre-stressed, which can effectively solv the problem of cyclic loosing pallet by explosion or rock behavior. After our testing and locale application, the results indicated that it can well adapt for bad rock conditions.
keywords:full pre-stressed  mechanical anchoring device  higher pre-tension  stability of surrounding rocks
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