YANG Hou-jun,SUN Da-wei.Application of Segment Assembling Method in Municipal Manhole Rehabilitation[J].China Water & Wastewater,2021,37(16 16):98-101.
Application of Segment Assembling Method in Municipal Manhole Rehabilitation
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
16 16
Page:
98-101
Column:
Date of publication:
2021-08-17
- Keywords:
- segment assembling; manhole; lining rehabilitation; trenchless rehabilitation; structure reinforce; corrosion resistance
- Abstract:
- Manhole segment assembling technology is an extension of pipe segment assembling repairing technology, which has advantages of high structural strength, strong corrosion resistance after repairing, installation without large mechanical equipment, low noise and applicable for various construction environments. After segments are assembled, the composite manhole structure is formed by grouting the gap between liners and existing manhole. Because segments are made of transparent PVC plastics, the grouting condition can be checked visually, and installation quality can be guaranteed effectively. Combining with trenchless rehabilitation projects of sewerage inverted siphon and manhole in Hulan Road (Xisitang River), Baoshan District, Shanghai, this paper compares and analyzes the advantages and disadvantages of several trenchless rehabilitation methods commonly applied in large and medium drainage manhole, and elaborates the key controlling point and technical advantages of segment assembling method. Finally, the application prospect of segment assembling method in large and medium manhole rehabilitation is provided.
Last Update:
2021-08-17