Pre Evaluation on Reliability of West-East Gas Transmission Pipeline

The actual pipeline generally occur certain failure probability and reliability due to the indetermination of pipe quality, material property,internal pressure,accident load etc...It introduces a method that use failure evaluation chart and Monte Carlo method to calculate pipeline reliability and pre-evaluate the reliability of West-East Gas Transmission Pipeline by adopting target reliability abroad.The results show that the reliability of West-East Gas Transmission Pipeline fully meets requirements of specification whether it exist certain probability of defects failure inspection or not;In order to improve reliability of pipes,strict inspection shall be performed through manufacture of pipes and welding during construction of pipeline to avoid defects failure inspection caused by man.