隧道支护结构体系及其协同作用 1)
张顶立,孙振宇,侯艳娟

TUNNEL SUPPORT STRUCTURE SYSTEM AND ITS SYNERGISTIC EFFECT 1)
Dingli Zhang,Zhenyu Sun,Yanjuan Hou
表5 隧道锚杆支护建议
Table 5 Proposed parameters for tunnel rockbolt
Length Diameter Layout density Prestress force
l/m d/mm C/(N.m-2) F/kN
3 22 1 70