我国大变形锚杆研究现状及发展趋势
王贺,陈何,曹辉
Research Status and Trends of Large Deformation Rock Bolts in China
He WANG,He CHEN,Hui CAO
图2
一种恒阻大变形吸能锚杆
Fig.2
Energy-absorbing bolt with extraordinarily large elongation and constant resistance