[1]林增乐.富水区管道局部缺陷快速锁加固模型试验研究[J].中国给水排水,2026,42(12):24-31.
LINZengle.Experiment on Quick-locking Reinforcement Model for Local Defects in Water-rich Area Pipelines[J].China Water & Wastewater,2026,42(12):24-31.
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LINZengle.Experiment on Quick-locking Reinforcement Model for Local Defects in Water-rich Area Pipelines[J].China Water & Wastewater,2026,42(12):24-31.
富水区管道局部缺陷快速锁加固模型试验研究
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第42卷
期数:
2026年第12期
页码:
24-31
栏目:
出版日期:
2026-06-17
- Title:
- Experiment on Quick-locking Reinforcement Model for Local Defects in Water-rich Area Pipelines
- Keywords:
- water supply and drainage pipelines; leakage; quick-locking steel sleeve; water- rich area; design model
- 摘要:
- 富水区供排水管道渗漏问题的治理，是市政管网局部缺陷控制中最为困难的一环。快速锁钢套筒因其结构简单、安装方便及成本低廉等优势被广泛应用。然而，在高水压环境下，这类薄壁结构易发生屈曲失效，导致修复后的管网功能丧失，造成严重后果。为研究其性能，针对5组不同直径的管道开展快速锁加固足尺试验，探讨快速锁钢套筒在局部集中外压作用下的失效模式，并获得了不同尺寸参数下钢套筒的极限屈曲压力。基于结构可靠性理论，进一步建立了钢套筒设计模型。结果表明，试验值与模型计算结果之比在0.87～1.15之间，两者吻合度较高。相关研究成果可为市政供排水管网局部修复结构的设计和施工提供有效指导。
- Abstract:
- The remediation of leakage in water supply and drainage pipelines within water-rich areas represents one of the most challenging aspects of local defect control in municipal pipe networks. Quick-locking steel sleeves are widely adopted due to their simple design, convenient installation, and low cost. However, under high water pressure conditions, such thin-walled structures are prone to buckling failure, leading to functional loss of the repaired pipeline with potentially severe consequences. To investigate their performance, full-scale quick-locking reinforcement tests were conducted on pipes of five different diameters. These tests examined the failure modes of quick-locking steel sleeves under local concentrated external pressure and determined their ultimate buckling pressures across varying dimensional parameters. Furthermore, a design model for the steel sleeve was established based on structural reliability theory. The results show that the ratio of experimental values to model-calculated values ranges between 0.87 and 1.15, demonstrating good agreement. The relevant research findings can provide effective guidance for the design and construction of local repair structures in municipal water supply and drainage networks.
更新日期/Last Update:
2026-06-17