摘要
防冲抗爆恒阻大变形锚杆包括杆体、托盘和螺母,其恒阻装置,可以在巷道围岩发生大变形时自动拉伸,并保持恒定的工作阻力.锦屏二级引水隧洞开挖极强岩爆洞段施工时首次引入了防冲抗爆恒阻大变形锚杆,工程实际应用验证了其可行性,此对类似工程具有借鉴意义.
Scour, burst, constant resistance and large deformation bolt is the patent of invention of Prof. He Manchao, who is from Beijing Zhongkuang far-reaching Energy Research Academy of Environmental Scienc- es, including a rod body, a tray and a nut. Among them, constant resistance device is also one of the part, which can automatically extend when roadway surrounding rock deforms largely and maintain constant work- ing resistance. The bolt was first introduced when strong rock burst tunnel of secondary diversion tunnel at Jinping was excavated. The findings of this experiment validate its feasibility, which has some reference for projects alike.
出处
《成都大学学报（自然科学版）》
2012年第3期284-286,共3页
Journal of Chengdu University（Natural Science Edition）
关键词
恒阻大变形
锚杆
岩爆
应用
constant resistance and large deformatio
bolt
rockburst
application
