国内外直埋技术的发展已有60余年的历史,由于直埋管道具有不影响环境美化、施工简便、工期短、维修工作量少的特点,因此特别是近30年来热水供热管道直埋敷设发展迅速,相应形成了一整套直埋敷设的设计原理和计算方法。国内制定了有关直埋管道的技术规程,但规程中所给 Buried technology at home and abroad has been the development of more than 60 years of history, due to direct burial does not affect the landscaping, construction is simple, short construction period, less maintenance work characteristics, especially in the past 30 years, buried in hot water heating pipes Rapid development of laying, the formation of a set of direct burial laying design principles and calculation methods. Domestic developed technical regulations on direct buried pipe, but the rules given