城市煤气工程是生命线工程的重要组成部分,担负着人民生活的繁重任务,如果遭受震害,将会给人民的生活带来很大的困难,并且还会带来次生灾害。本世纪初的日本关东和美国旧金山大地震,由于煤气管网破坏引起的大火,造成了巨大的损失。近年发生的美国西海岸地震,主要破坏也是高架桥和城市煤气管网的破坏;日本的阪 The urban gas project is an important part of the lifeline project and shoulders the heavy task of people’s lives. If it suffers from the earthquake damage, it will bring great difficulties to the people’s life and bring about secondary disasters. The Kanto of Japan and the San Francisco earthquake in the United States at the turn of this century caused huge losses due to the fire caused by the destruction of the gas pipe network. In recent years, the West Coast earthquake in the United States, the main damage is also the destruction of the viaduct and the city gas pipeline; Osaka, Japan