In-situ monitoring and analysis on the stability of surrounding rock of Qiankeng tunnel

Author

Huang, Zhihuai ; Li, Dong ; Li, Yuqi ; Gao, Hongmei

Author_Institution

Pearl River Water Resources Sci. Res. Inst., Guangzhou, China

fYear

2011

fDate

26-28 July 2011

Firstpage

4468

Lastpage

4473

Abstract

Qiankeng tunnel of Dongshen water supply project is 322m long. The types of surrounding rock are whole weathering, IV and V class granite. The entire tunnel is under bad geological conditions. Based on the new Austrian tunneling method and considering the field geological conditions, the form of supporting and lining structure, the deformations are monitored for surrounding rock, supporting structure, and lining structure during the construction of tunnel. Various influencing factors on the deformation stability are analyzed including the stress of surrounding rock, surrounding rock structure, unloading effect, deformation mechanism, deformation time space effect and deformation response. This study plays an important role in the construction safety and provides adequate information for the post monitoring.

Keywords

condition monitoring; deformation; geology; geotechnical engineering; mechanical stability; rocks; safety; tunnels; water supply; Austrian tunneling method; Dongshen water supply project; Qiankeng tunnel; construction safety; deformation stability; geological condition; lining structure; post monitoring; supporting structure; surrounding rock structure; unloading effect; weathering; Monitoring; Rocks; Stability analysis; Strain; Three dimensional displays; Water resources; Qiankeng tunnel; analysis; deformation; monitoring; stability of surrounding rock;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia Technology (ICMT), 2011 International Conference on

Conference_Location

Hangzhou

Print_ISBN

978-1-61284-771-9

Type

conf

DOI

10.1109/ICMT.2011.6003222

Filename

6003222