THE EXPERIMENT OF SOUND TRANSMISSION CHARACTERISTIC ON BURIED 30 INCH PIPE DUE TO THIRD-PARTY DAMAGE
Korea Gas Corporation(KOGAS) now operates a nationwide pipeline network spanning 2,520km ensuring a stable supply for the nation. Pipeline was damaged by third-party damage. Damage can be directly to acts of man, such as contact with earthmoving equipment, or in directly, such as subsidence associated with mining. Direct man-made damage, when inflicted by other than the owner of pipeline, is known as third-party damage. Third-party damage tends to be localized to the point of contact, such as by a backhoe or boring tool. This experiments was conducted in the field using a 0.2 km run of abandoned pipeline. The line was cut and not pressurized. In the experiments, the impact signals were generated by backhoe. The impact signals level obtained is much lower than expected from real thirdparty incident. Two of instrument sites contained accelerometer. Distance of accelerometer is 150m, 200m from the impact point We enforce impact directly to pipe by breaker and bucket. shape of breaker head is hemisphere impact head. and bucket head is flat.
Jae Pil Koh Sang Yup Jang Shin Kyu Oh Young Geun Kim
R&D Center, Korea Gas Corporation, Il-dong 638-1, Ansan 425-790, Korea R&D Center, Korea Gas Corporation, Il-dong 638-1, Ansan 425-790, Kore
国际会议
第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)
北京
英文
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）