TY - GEN
T1 - RFEC/TC Technology Advancement through GMRA Experience
AU - Mergelas, Brian
AU - Shatat, Stat
AU - Kong, Xiangjie
AU - Mao, Weihua
AU - Atherton, David L.
PY - 2003
Y1 - 2003
N2 - The world's largest single PCCP project is owned and operated by North Africa's Great Man Made River Authority (GMRA). GMRA supplies water from the world's largest well fields to some of its biggest reservoirs. The water is conveyed from aquifers in the middle of the desert to the coast in 4m (157Prime;) diameter prestressed concrete cylinder pressure pipes (PCCP). The main conveyance network, measuring 3,500 km (2,200 miles), utilizes almost half a million pipes and transports 6.5 million m3 (5,270 acre-feet) of water per day. GMRA has been using the Pressure Pipe Inspection Company's (PPIC) Remote Field Eddy Current / Transformer Coupling (RFEC/TC) technology to provide pipeline condition assessment information since April of 2000. To date, GMRA has inspected over 1,500 km (932 miles) of PCCP using the RFEC/TC system to detect and quantify prestressing wire breaks in its PCCP. The results provided by the RFEC/TC technique have enabled GMRA to selectively repair or replace individual pipes - making the cost-effective management of this enormously complex pipeline system possible. During this same period, systematic analysis of the data gathered during inspections has led to advances in PPIC's understanding of the RFEC/TC technique and its application it to the evaluation of water distribution systems.
AB - The world's largest single PCCP project is owned and operated by North Africa's Great Man Made River Authority (GMRA). GMRA supplies water from the world's largest well fields to some of its biggest reservoirs. The water is conveyed from aquifers in the middle of the desert to the coast in 4m (157Prime;) diameter prestressed concrete cylinder pressure pipes (PCCP). The main conveyance network, measuring 3,500 km (2,200 miles), utilizes almost half a million pipes and transports 6.5 million m3 (5,270 acre-feet) of water per day. GMRA has been using the Pressure Pipe Inspection Company's (PPIC) Remote Field Eddy Current / Transformer Coupling (RFEC/TC) technology to provide pipeline condition assessment information since April of 2000. To date, GMRA has inspected over 1,500 km (932 miles) of PCCP using the RFEC/TC system to detect and quantify prestressing wire breaks in its PCCP. The results provided by the RFEC/TC technique have enabled GMRA to selectively repair or replace individual pipes - making the cost-effective management of this enormously complex pipeline system possible. During this same period, systematic analysis of the data gathered during inspections has led to advances in PPIC's understanding of the RFEC/TC technique and its application it to the evaluation of water distribution systems.
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U2 - 10.1061/40690(2003)23
DO - 10.1061/40690(2003)23
M3 - Conference contribution
AN - SCOPUS:0345329356
SN - 0784406901
SN - 9780784406908
T3 - Proceedings of the ASCE International Conference on Pipeline Engineering and Construction: New Pipeline Technologies, Security, and Safety
SP - 687
EP - 695
BT - Proceedings of the ASCE International Conference on Pipeline Engineering and Construction
A2 - Najafi, M.
PB - American Society of Civil Engineers Texas Section
T2 - Proceedings of the ASCE International Conference on Pipeline Engineering and Construction: New Pipeline Technologies, Security and Safety
Y2 - 13 June 2003 through 16 June 2003
ER -