Stress Influence Factor Analysis of Gas Pipeline in the Tunnel

Article Preview

Abstract:

The laying of gas pipeline with tunnel crossing method, except under the influence of pressure, temperature, and out of gas direction, it also subjected to constraints of soil, soil temperature, terrain conditions and the impact of earthquakes. Also crossing pipes are in the constraints of fixed pier, anchorage pier and pier pipeline deformation, which makes the stress analysis of boundary is difficult to determine. In order to compare the effect of different constraints and out of gas direction on the entire tunnel crossing pipeline under operating conditions, this paper has established three pipe models: the symmetrical form of the direction of access to gas, completely without supporting (do not canceled the fixed pier at both ends)and with supporting form, then the primary stress, secondary stress and compound stress are checked in turn. By comparing their impact on the stress of the whole pipeline, we get the importance and extent of the main constrains on the pipeline stress.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

4264-4269

Citation:

Online since:

October 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Yue Jincai. pressure pipe. Beijing: China Petrochemical Press, 2005.

Google Scholar

[2] Xiang Yong. West - East defender of the Yellow River tunnel. Petroleum Engineering Construction, 2011,37 (3) :51-57.

Google Scholar

[3] Tang Yongjin. Pressure Piping Stress Analysis (2nd Edition). Beijing: China Petrochemical Press, 2007.

Google Scholar

[4] Yu Puyi, Zhang Dejiang, Tang Yongjin. Petrochemical Pressure Piping Design Manual. Beijing: Chemical Industry Press, 2010.

Google Scholar

[5] Cai Qiangkang, Lv Yingmin. Internal Force and Stress Calculation of pipelines buried geothermal. East China Petroleum Institute.1978 (2) :69-89.

Google Scholar

[6] Sui Zhifeng. Gas pipeline special pipe stress analysis and safety evaluation. Beijing: China University of Petroleum security technology and Engineering College, 2009.

Google Scholar