液化引起的地面水平大位移在我国唐山、海城地震中已有诸多表现，１９９５年日本阪神地震也由此引起一系列震害，因此，日本拟将防液化流动对策列入抗震规范。本文结合地下生命线工程特点，对防御地面大位移震害提出一些基本措施，包括勘察、位移值预估、流动土体对管线等工程结构的作用力及地基加固等。 Large displacements of ground level caused by liquefaction have been reported in Tangshan and Haicheng earthquakes in our country. In 1995, Japan’s Hanshin earthquake also caused a series of earthquakes. Therefore, Japan proposed to include anti-liquefaction measures in anti-seismic measures. Combined with the characteristics of underground lifeline engineering, this paper puts forward some basic measures to prevent the large-scale earthquake damage on the ground, including the survey, the prediction of displacement value, the acting force of flowing soil on the pipeline structure and the reinforcement of foundation.