恒阻内锚吸能锚杆性能试验研究  

Performance Test of an Internal Yielding Bolt with Constant Resistance

作　　者：马池帅 MA Chishuai(Patent Examination Cooperation Hubei Center of the Patent Office,CNIPA,Wuhan 430205,China)

机构地区：[1]国家知识产权局专利局专利审查协作湖中心,湖北武汉430205

出　　处：《河南科技》2022年第21期45-48,共4页Henan Science and Technology

摘　　要：针对岩爆灾害导致的隧道支护结构破坏特征及其对锚杆-围岩支护系统的高强度、吸能让压的要求,提出一种恒阻滑移、内锚让压的吸能锚杆。通过室内静态和动态试验进一步验证新型吸能锚杆的性能,在冲击或静态拉伸过程中,锚杆表现出良好的“自我保护”与“冲击适应性”。In view of the failure characteristics of supporting structure in rock burst tunnels and the special requirements on bolt-surrounding rock mass,a new support technology on internal yielding bolt with constant resistance by extrusion and slip effect was proposed.The effectiveness of the new energyabsorbing bolts was further validated under whether static tension or impact tension loading.The test results showed that the new energy-absorbing bolts possess better self-protection and self-adaptability.

关 键 词：岩爆 能量 让压锚杆 

分 类 号：TD324[矿业工程—矿井建设] TD353.6