The numerical simulation show that the PFRC structure could work well utilizing the utmost self-bearing capacity of the rock mass and effectively reduce thickness of the 2(superscript nd) support.

• 计算结果表明，聚丙烯纤维混凝土锚喷支护结构能充分发挥围岩自承载能力，提高隧道的稳定性，能有效减少二次衬砌混凝土的厚度。