由于石油供应的不定性,加速了在大陆架进行烃类开采和勘探。由固定平台、人工岛或由水下完井的方式自大陆架输送石油和天然气最经济的办法是采用海底管道。在浅水中,为了避免大的波浪和水流力作用于管道,管道常常敷设于沟槽中并回填予以覆盖。管道埋深必须是以避免管道暴露,同时还必须研究液化的可能性,以防止管道自产生液化的泥沙中向沟槽表面移动。在深水中,敷设的管道可以覆盖或不予覆盖, Due to the uncertainty of oil supply, hydrocarbon exploration and exploration on the continental shelf have been accelerated. The most economical way to transport oil and gas from the continental shelf by means of fixed platforms, artificial islands or by underwater completion is the use of submarine pipelines. In shallow water, in order to avoid large wave and water flow acting on the pipeline, the pipeline is often laid in the trench and backfilled to be covered. The depth of the pipe must be such as to avoid pipe exposure and at the same time to study the possibility of liquefaction to prevent the pipe from moving from the liquefied sediment towards the groove surface. In deep water, the laying of the pipeline can be covered or not covered,