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)
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 ...