摘要
软岩大断面隧道超前支护技术虽然已做了大量的研究,提出了多种超前支护方法,但关于深埋软弱围岩的概念、分类、各类软弱围岩的变形力学机制、软弱围岩难支护的原因、软弱围岩支护的力学原理、支护原则与支护对策等一系列的软弱围岩工程地质力学理论方面的问题尚未系统解决。以宝峰隧道为例,研究了软岩隧道超前支护方法,提出了一种超前注浆预衬砌支护新方法,并进行了试验和检验,取得了良好的效果。
Support technology of soft rock tunnel with large cross section has been doing a lot of research,which presents a variety of advanced support in the past,it is not system of support and support measures and a series of theory of soft rock engineering geomechanics problems, the soft rock concept,classification of deep buried weak surrounding rock,various types of soft rock deformation mechanism of soft surrounding rock supporting reasons for the difficulty and weak surrounding rock supporting principles of mechanics. This paper presents a new advanced grouting lining support method based on the study on support methods of soft rock tunnel. The test result shows that it has good effect.
出处
《施工技术》
CAS
北大核心
2017年第1期102-105,共4页
Construction Technology
关键词
隧道工程
软岩隧道
超前支护
注浆
试验
tunnels
soft rock tunnel
advanced supports
grouting
testing
