Experimental and finite element analyses on the corrosion of underground pipelines  

作　　者：SUN Li CHEN Chen SUN QianQian 

机构地区：[1]School of Civil Engineering, Shenyang Jianzhu University [2]Liaoning Urban Architectural Design Institute

出　　处：《Science China(Technological Sciences)》2015年第6期1015-1020,共6页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.51178277);Program for New Century Excellent Talents in University(Grant No.NCET-12-1013);Program for Liaoning Excellent Talents in University(Grant No.LR2012018);the Shenyang City Science Foundation of China(Grant No.F14-192-4-00)

摘　　要：Underground pipelines, on which a city relies for survival and development, have become an important part of lifeline engineering. Underground pipelines are utilized for conveying liquid, gas or loose solid, pipeline leakage and damage occasionally resulting from corrosion. Corrosion monitoring of underground pipelines is aimed at ensuring their normal operation and preventing loss of life and property. In this paper, a new method to monitor corrosion of pipelines has been proposed to solve the mentioned problem. Under the influence of internal pressure and corrosion, the pipeline wall becomes thinner and the circumferential deformation increases. The method is to indirectly investigate pipeline corrosion by monitoring the circumferential deformation. Numerical simulation confirms that the circumferential strain curve of the pipeline wall measured by using the proposed method to describe the corrosion is feasible. The proposed method provides a new way for real-time and long-term monitoring and management of underground pipelines.

关 键 词：underground pipeline fiber bragg grating sensor corrosion monitoring 

分 类 号：TU990.3[建筑科学—市政工程] TG174.3[金属学及工艺—金属表面处理]