Research And Development Of Buried Gas Steel Pipeline Corrision Protection Synthetic Assessment System

Coating corrosion protection of buried steel pipeline is the important method to sustain its function safely and efficiently, utilize synthetic assessment software system to process survey data can improve efficiency of maintenance and administration, provide reliable technical warranty and foundation for assessment of pipeline repairing and sustain its function, make better use of coating corrosion protection system, minimize the possibility of buried steel pipeline security accident, serve national economy and people better, decrease possible economic loss, energy profusion, casualties and environment pollution.This subject combined genetic algorithm and neural network and made it the foundation of steel pipeline corrosion protection status synthetic assessment, established the neural network optimized by genetic algorithm assessment model for steel pipeline corrosion status synthetic assessment. Genetic algorithm is a global, stable search optimizing approach, it can avoid neural network converging at a partial minimum efficiently in training process. Combining genetic algorithm with neural network can expand neural network search space, improve calculation efficiency and enhance automation level of neural network modeling. Synthetic assessment model of this project use genetic algorithm to optimize connection weights of neural network through continuous evolution of individuals. By studying data samples such as: survey data, pipeline material, environmental factor and original pipeline information, this software system can integrate the field factors into assessment model. More practical assessment can be achieved by using this integrated model when processing survey data, so given the lack of clear universal formula, this meet the urgent requirement of making accurate assessment and providing stable administrative proof under circumstance of various steel pipeline corrosion protection statuses.This coating corrosion protection assessment software system of buried steel pipeline that is based on synthetic assessment model has the functions such as: buried pipeline original data management, pipeline corrosion protection law and standard management, pipeline corrosion protection survey equipment management, pipeline corrosion protection survey data curve drawing; pipeline corrosion protection survey data analysis and assessment, survey data report generation., survey technicians, and government stuff on security monitoring to have pipeline real-time status in hand. It will become a power tool of having pipeline real-time status in hand for pipeline administrators, data processing for survey technicians, and establishing pipeline security management measure for government stuff on pipeline security monitoring.