Non-destructive evaluation of shield tunnel condition using GPR and 3D laser scanning

Author

Xiongyao Xie ; Zeng, Chenchao

Author_Institution

Dept. of Geotech. Eng., Tongji Univ., Shanghai, China

fYear

2012

fDate

4-8 June 2012

Firstpage

479

Lastpage

484

Abstract

Shield tunnel requires routine inspections for construction safety and quality control. The rapidness, non-destructiveness and high precision of GPR and 3D laser scanning technology enable them to be widely and increasingly used in tunnel detection. The evaluation of Yingbin No.3 Road Tunnel is presented in this paper to illustrate the application of GPR in the inspection on thickness of grouting layer behind the segment and 3D laser scanning technology in the testing on surface situation of tunnel liner. The advantages and limitations of the above-mentioned two methods are discussed in the paper and suggestions are provided.

Keywords

ground penetrating radar; inspection; laser beam applications; nondestructive testing; quality control; safety; structural engineering; tunnels; 3D laser scanning technology; GPR; Yingbin No 3 road tunnel; construction safety; grouting layer; nondestructive evaluation; quality control; routine inspection; shield tunnel condition; surface situation; tunnel detection; tunnel liner; Conferences; Ground penetrating radar; 3D laser scanning; GPR; non-destructive evaluation; shield tunnel;

fLanguage

English

Publisher

ieee

Conference_Titel

Ground Penetrating Radar (GPR), 2012 14th International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4673-2662-9

Type

conf

DOI

10.1109/ICGPR.2012.6254913

Filename

6254913