The design norm of big diameter floor pull pipeline for marine outfall is still absent.The criteria related to design are explored and calculated in practice and useful results have been obtained.

• 在目前底拖法海洋放流管(大口径管)尚无设计规范的情况下，对其进行了探索、实践，从设计角度就该法的主要问题进行了分析、计算并得出了一些有益的结论。