融合城市地质工程的高压混凝土管道内衬HDPE管修复关键技术流程及效益评价

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中图分类号：TU990.3 文献标识码：A 文章编号：2097-5465（2025）06-0094-06

Abstract：Withtheaccelerationofurbanzation，problemssuchascorosionandleakageofhighpressureconcretepipelinscaused bylong-termservicehavebecomeincreasinglyprominent.Traditional excavationrepairtechnologyhasgraduallybenreplacedby trenchlesstechnologyduetoitshighcost，longcycleandsignificantsocialimpact.TakingtheDN10oohigh-presureconcrete pipeline epairprojectinacertaincityastheresearchobject，fromtheuniqueperspectiveofurbangeologicalengineering，this papersystematicallydiscussesteprocessoptiization，qualitycontrolandngineringadaptabilityofhig-densitypolyethylen （HDPE）liningrepair technology.Throughcore processessuchasdiameterreduction traction，hotmelt weldingandcomposite flange connection，the pressure-bearing capacity of thepipeline was successfully increased from 0，3 MPa to 0.6 MPa，and it passed the O.9 MPa sealing pressure test verification.Research shows that this technology can save 53% of costs and shorten the construction period by 44% ，providing an efficient and environmentally friendly solution for high-pressurepipeline repair.At the sametime，itfullyconsiderstheimpactof diferent geologicalconditionsontheproject，enhancingtheapplicabilityof he technology in complex geological environments.

Keywords：urbangeological enginering；trenchlessrehabitation；HDPElining；high-pressureconcretepipeline；qualitycontrol

随着城市化进程加速，城市地质环境对基础设施的影响日益凸显。（剩余5380字）