浅析 U-HDPE 内衬管修复技术在燃气管网改造工程中的应用浅析 U-HDPE 内衬管修复技术在燃气管网改造工程中的应用 摘要：通过对杭州市某市政道路中压燃气管道改造工程采纳U-HDPE 内衬管修复技术进行试点改造的总结，介绍 U-HDPE 内衬管修复技术及在工程实例需要注意的技术与施工事项；并结合该工程实际施工过程中的实践结果，与其它修复技术进行了简单比较，叙述了各自特点；对采纳该技术与传统的大开挖方式施工进行了经济分析比较
关键词：非开挖；U-HDPE；内衬管；修复技术；燃气 Abstract: through a municipal road medium voltage in hangzhou city gas pipeline renovation project adopt U-HDPE tube lined with repair technology in the reconstruction of a pilot project summary, introduced the U-HDPE tube lined with repair technology and in the engineering example need to pay attention to technology and construction matters; Combined with the actual engineering and construction process of the practice, and other repair technology of a simple comparison, describes the characteristics; Based on the technology and traditional big excav
