Stress calculation of unlined pressure tunnel surrounding rock in hydraulic engineering

Author

Keding Liu

Author_Institution

Hunan Urban Constr. Coll., Xiangtan, China

fYear

2013

fDate

23-24 Dec. 2013

Firstpage

57

Lastpage

60

Abstract

In hydraulic engineering, the running state of pressure diversion tunnel directly affects the normal use and economic benefit of the whole project. This paper bases on the deep-lying circular tunnel and analyse stress distribution in the unlined hydraulic tunnel surrounding rock by using the finite element method, respectively study the stress after the completion of the tunnel excavation, additional stress produced by the internal water pressure, stress distribution produced during water filling operation. These research results provide some references of design and construction for unlined pressure tunnel.

Keywords

finite element analysis; pressure; rocks; stress analysis; structural engineering; tunnels; deep-lying circular tunnel; finite element method; hydraulic engineering; internal water pressure; pressure diversion tunnel; project economic benefit; rock; stress calculation; stress distribution; tunnel excavation; unlined hydraulic tunnel; unlined pressure tunnel; water filling operation; Economics; Filling; Finite element analysis; Rocks; Solid modeling; Stress; Three-dimensional displays; Finite element method; Stress distribution; Tjodan hydropower station; Unlined pressure tunnel;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement, Sensor Network and Automation (IMSNA), 2013 2nd International Symposium on

Conference_Location

Toronto, ON

Type

conf

DOI

10.1109/IMSNA.2013.6742817

Filename

6742817