Reason analysis and treatment for concrete material cracks of tunnel lining

被引：1
|
作者：
Zhang, B. [1 ,2 ]
Fan, S. [1 ]
Deng, J. [2 ]
机构：
[1] School of Geoscience and Technology, Southwest Petroleum University, Chengdu, Sichuan,610500, China
[2] State Key Laboratory of Hydraulic and Mountain River Engineering, Sichuan University, Chengdu, Sichuan,610065, China
来源：
Materials Research Innovations | 2015年 / 19卷
关键词：
Quality management - Safety engineering - Cracks - Highway administration - Tunnel linings - Strength of materials;
D O I：
10.1179/1432891715Z.0000000002126
中图分类号：
学科分类号：
摘要：
In the construction of highway tunnels, the lining material is mainly composed of reinforced concrete. However, this lining concrete will crack if it does not have sufficient strength. Such cracks will aggravate internal reinforced material rust, impacting the tunnel's safety and waterproofness. Once a highway tunnel has been in operation for 2 years, cracks become apparent. To assess the cracks, highway tunnel construction was investigated, and the causes were analysed on convergence of tunnel section, material strength test and numerical simulation. Possible factors in the design, construction and operation stages were also researched, such as partial pressure; material strength and engineering geology. The concept of quality management in the whole process is proposed. In addition, it is crucial to choose the appropriate materials to reinforce in a timely manner, to avoid too much cracking and ensure long-term stability. The research results have great significance for the safety control and management of highway tunnels. © 2015 W. S. Maney & Son Ltd.
引用
收藏
页码：144 / 147
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