Abstract:In order to solve the core problems of prominent leakage hazards, frequent connection process defects, and lagging acceptance methods in the construction of gas pipelines in residential communities, this article reconstructs the design of wall crossing nodes, standardizes the elbow connection process, strengthens the quality control throughout the entire process, and introduces advanced non-destructive testing technology to establish a quality assurance system covering the entire life cycle of design, construction, and acceptance. Through engineering case verification, this solution can effectively eliminate hidden engineering defects, significantly improve the safety and reliability of gas system operation, provide a replicable practical path for the industry, and promote the transformation of residential gas engineering towards refinement and intelligence.