Core Insights - The Northeast Energy Strategic Corridor has successfully transported over 330 million tons of crude oil and more than 100 billion cubic meters of natural gas, contributing significantly to the high-quality development of the economy and the well-being of the people [1][3]. Group 1: Technological Innovations - The corridor has achieved the world's first successful crossing of the unstable permafrost zone in the southern Eurasian continent, with key equipment and core control systems fully domestically produced [1][7]. - A pioneering method for predicting permafrost evolution in thermal oil pipelines has been developed, allowing for scientific forecasting of permafrost distribution and dynamic changes [4]. - The research team has created a comprehensive technology system for controlling thawing in permafrost areas, reducing the thawing rate by 70% and ensuring dynamic stability of the pipelines [4][5]. Group 2: Pipeline Safety and Design - The "North Gas South" energy corridor, a landmark project for China's third-generation high-capacity natural gas pipelines, has a daily gas transmission capacity exceeding 110 million cubic meters and an annual capacity of 38 billion cubic meters [6][10]. - A new crack toughness prediction model for large-diameter high-strength pipelines has been developed, incorporating soil type, burial depth, and pipe diameter as dynamic coupling factors [8]. - The first full-scale gas explosion test for a 1422 mm large-diameter, X80 high-strength pipeline was conducted, validating the crack toughness indicators and ultimate load-bearing capacity of the pipeline [8]. Group 3: Intelligent Monitoring - The research team has developed a high-resolution magnetic-electric composite sensing technology for detecting micro-defects and additional stress in large-diameter pipelines [11]. - A pipeline inspection robot equipped with numerous sensors can travel inside the pipeline, collecting approximately 2G-3G of data per minute without affecting the pipeline's operation [11][12]. - An intelligent analysis system has been created to interpret the collected data, enabling timely detection of hidden pipeline defects or stress changes [11]. Group 4: Strategic Importance - The Northeast Energy Strategic Corridor serves as a crucial energy corridor and a flagship project of the Belt and Road Initiative, promoting the development of safe, green, and friendly pipelines [12].