Taking the centralized heat supply engineering in Taiyuan as an example,this paper researched the construction technology of heat pipe underway west canal engineering,described in detail the techniques key points of diversion channel setting,bridge construction,cofferdam water improvement,deep well precipitation,earth excavation and other aspects,for similar engineering reference.%以太原市集中供热工程为例，对热力管道下穿西干渠工程施工技术进行了研究，详细阐述了导流渠设置、便桥施工、围堰改水、深井降水、土方开挖等环节的技术要点，以供同类工程参考借鉴。
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