摘要
针对Ⅳ、Ⅴ级软弱围岩,我国隧道支护系统存在限制围岩早期变形效果不佳、施工工效低下和经济性差等问题。为了使隧道支护能够及时提供足够支护力来有效控制围岩早期变形,以达到提升施工工效的目的,文章采用资料调研、数值模拟和理论计算等研究方法,基于挪威法Q系统提出了隧道新型支护系统,并从经济性和工效性等方面对其可行性进行了研究。研究结果表明,该新型支护系统具有较好的经济性和工效性,同时我国现有施工条件能够满足其推广应用的要求。
In terms of ClassⅣand ClassⅤsoft surrounding rock,the following problems exist in the tunnel support system of China:poor effect of restricting early deformation of surrounding rock,low construction efficiency,and low economical efficiency.To ensure the tunnel supports can timely provide sufficient supporting force to effectively control the early deformation of surrounding rock and further improve the construction efficiency,this study,employs several study methods,such as data research,numerical simulation and theoretical calculation,etc.,puts forward a new tunnel support system based on the Norwegian method Q system,and conducts the feasibility study in terms of economical efficiency and construction efficiency.The study results show that this new tunnel support system is characterized by better economical efficiency and construction efficiency,and the existing construction conditions of China can meet the requirements for the promotion and application of this system.
作者
王志龙
王巍浩
刘大刚
严志伟
田红涛
WANG Zhilong;WANG Weihao;LIU Dagang;YAN Zhiwei;TIAN Hongtao(School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031;Hebei University of Water Resources and Electric Engineering,Cangzhou 061000)
出处
《现代隧道技术》
CSCD
北大核心
2022年第3期31-39,共9页
Modern Tunnelling Technology
基金
中国国家铁路集团有限公司科技研究开发计划课题(P2019G038)
河北省高等学校科研重点项目(ZD2021068)
沧州市科技局自筹经费项目(204108003).
