QINXiao,SHENRong,YUJing,et al.Compilation of Technical Specification of Yunnan for Trench-less Rehabilitation of Water-supply and Sewer Pipeline: A Systematic Review[J].China Water & Wastewater,2025,41(18):24-28.
Compilation of Technical Specification of Yunnan for Trench-less Rehabilitation of Water-supply and Sewer Pipeline: A Systematic Review
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第41卷
Number:
第18期
Page:
24-28
Column:
Date of publication:
2025-09-17
- Keywords:
- urban water-supply and sewer pipeline; trenchless rehabilitation; pipeline inspection and evaluation; local standard
- Abstract:
- The Technical Specification of Yunnan for Trench?less Rehabilitation of Water-supply and Sewer Pipeline （DBJ53/T-159-2024） was officially implemented on November 1, 2024. Compared to the current industry standards—Technical Specification for Trenchless Rehabilitation and Renewal of Urban Sewer Pipeline（CJJ/T 210-2014） and Technical Specification for Trenchless Rehabilitation and Renewal of Urban Water Supply Pipelines（CJJ/T 244-2016）, this regulation includes 9 mature and applicable trenchless repair technologies for water-supply and drainage pipelines based on Yunnan’s actual conditions. Building upon these the two industry standards, it improves the content resulted to pipeline inspection and evaluation, hydraulic calculation. These improvements make the specification more systematic and practical, providing important guidance for trenchless rehabilitation projects of water-supply and drainage pipelines in Yunnan Province. It can also serve as a reference in other regions.
Last Update:
2025-09-17