This paper expounds the direct embed construction of heat input pipe with big diameter, and its constructing method and quality control in the rebuilding of urban pipe network as well.
论述了大管径供热管道直埋施工，在城市管网改造中的施工方法和质量控制。
This paper expounds the direct embed construction of heat input pipe with big diameter, and its constructing method and quality control in the rebuilding of urban pipe network as well.
论述了大管径供热管道直埋施工，在城市管网改造中的施工方法和质量控制。
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