理念的更新——对软弱围岩隧道工程的思考  

The Updated Concept of Conventional Tunnelling in Soft Surrounding Rocks

作　　者：王建宇[1] WANG Jianyu(China Railway Southwest Research Institute Co.,Ltd.,Chengdu 611731)

机构地区：[1]中铁西南科学研究院有限公司,成都611731

出　　处：《现代隧道技术》2018年第6期1-10,共10页Modern Tunnelling Technology

摘　　要：文章着眼于矿山法修建的软弱围岩隧道工程,从现代隧道工程理念出发,探讨了隧道开挖引起的围岩力学形态从松弛到离散的变化过程以及针对这种过程的控制技术和超前支护的功能等问题;针对高地应力软弱围岩挤压性大变形的难题,文章着重论述了可让型支护系统作用原理和设计方法。在此基础上,结合工程实际提出了几点看法,供进一步探索、思考和实践。In a perspective of modern tunnelling philosophy, some problems on conventional tunnelling in softrock mass were discussed. The development process of rock mechanical behavior and deformation caused by excava-tion is attributed to the change course from yielding to discrete. Some effective control means were presented as welland the effect of advanced support system was evaluated. As to the deformation controlling technology for squeezingground, the theory and design principle of yielding support system were introduced.

关 键 词：新奥法 软弱岩体 挤压性地层 超前支护 可让型支护 

分 类 号：U451.2[建筑科学—桥梁与隧道工程]