HUANGWei.Rehabilitation Case of 3 600 mm Combined Sewage Main Pipe in Shanghai Bailonggang Area[J].China Water & Wastewater,2023,39(16):129-134.
Rehabilitation Case of 
3 600 mm Combined Sewage Main Pipe in Shanghai Bailonggang Area
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第16期
Page:
129-134
Column:
Date of publication:
2023-08-17
- Keywords:
- main pipe; riding well; temporary drainage; pipe rehabilitation; stainless steel lining reinforcement
- Abstract:
-
The 3 600 mm combined sewage main pipe is located under Luoshan Road in Shanghai Bailonggang area, and the shield of metro line 13 crosses vertically from the below, with a vertical distance of only 4.2 m. The pile foundation of partial pipe protection bridge are pulled for shield propulsion, which result in severe settlement of the main pipe. In allusion to the above problem, the rehabilitation measures of the main pipe under complex underground space are studied. New riding wells are built at the upstream and downstream of the main pipe. Temporary pipes (shallow laying) and temporary pumps are used to keep the main pipe dry. Then the pipe is reinforced with trenchless stainless steel lining to enhance the pipe integrity. Eventually, the shield of metro line 13 is propelled successfully. So far, the rehabilitated 3 600 mm combined sewage main pipe and metro line 13 have been completed and operated for many years. The main pipe is in good condition. As the first case of temporary drainage and rehabilitation of large diameter drainage main pipe in Shanghai, it can provide reference for similar projects.
Last Update:
2023-08-17