摘要
隧道开挖过程中,衬砌的设置对保证隧道的稳定性有至关重要的作用。在新奥法(NATM)隧道施工中,常将锚杆和喷射混凝土作为主要的支护手段,对隧道围岩进行支护,以便控制围岩的变形和松弛。因此,隧道衬砌的力学特性对隧道结构设计非常重要。在探讨围岩、衬砌共同作用的基础上,运用Midas-GTS建立了二维隧道衬砌模型,分析了其受力特性,对隧道结构设计具有一定的参考意义。
Tunnel lining is of great concern about guaranteeing stability of tunnel in the process of tunnel excavation. In the construction of tunnel by means of NATM, anchored wall and gunite concrete are usually used as one of main timbering means for tunnel lining to control the transformation and flabby of surrounding rock. Therefore, the mechanical characteristics of tunnel are very important for its structural design. In the basic of combined action of surrounding rock and lining, it employs Midas - GTS to build 2d tunnel lining model and analyzes its mechanical characteristics, which has certain reference significance for structural design of tunnel.
出处
《内蒙古公路与运输》
2012年第3期14-15,共2页
Highways & Transportation in Inner Mongolia
关键词
隧道开挖
衬砌
共同作用
受力特性
tunnel excavation
lining
combined action
mechanical characteristic
