Damage detection and quantitative analysis of shield tunnel structure |
| |
| Affiliation: | 1. School of civil engineering, Central South University, Changsha, Hunan 410075, China;2. National Engineering Laboratory for Construction Technology of High Speed Railway, Central South University, Changsha, Hunan 410075, China;3. College of Civil Engineering, Tongji University, Shanghai 200092, China;1. School of Civil Engineering & Mechanics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China;2. School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore;3. School of Economics and Management, Jilin Jianzhu University, Changchun 130118, China |
| |
| Abstract: | The damage of lining widely exists in metro shield tunnels, which may weaken the structural performance, affect the durability of the structure and even cause accidents. Investigation and evaluation of the lining damage is an essential work to reduce the risk grade during the service life of the structure. A rapid detection and analysis system has been applied in the shield tunnel of Metro Line 2 in Changsha, China for surveying the damage of lining. The system can obtain high definition image information of tunnel surface through multiple array CCD cameras at high speed, and use intelligent analysis method to identify and quantify the damage. The types, morphological characteristics and distribution characteristics of structural damages were analyzed based on the automatic detection results. The causes and the factors influencing the structural damages have been concluded. Finally, the existing problems and development prospects of metro tunnel structure management are discussed from the point of view of construction and maintenance. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
