本文分析了城市燃气管道达不到深埋要求的原因,阐述了浅埋防护技术的必要性,并对套管、混凝土防护板、支撑墙三种技术进行了分析论证,以期为燃气安全建设给出参考。 This paper analyzes the reasons why urban gas pipelines can not reach the deep buried requirements, expounds the necessity of shallow buried protection technology, and analyzes and verifies the three technologies of casing pipe, concrete protective plate and supporting wall so as to provide a scientific basis for gas safety construction For reference.