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Trenchless Mechanized Inspection and Retrofitting Strategy for Buried Sewerage Systems

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Title Trenchless Mechanized Inspection and Retrofitting Strategy for Buried Sewerage Systems
 
Creator Singh Bisht, Ravindra
Kumar, Dinesh
Garg, Naman
Kumar, Vikesh
Singh, Siddharth
Panigrahi, Soraj Kumar
Chourasia, Ajay
 
Subject Damage detection
Fiber-reinforced polymer
In-pipe retrofitting
Mechanized system
Rubber bladder
 
Description 767-775
The conventional retrofitting methods of buried sewer pipes require heavy machinery, intensive manpower, and a longer
time for rehabilitation. Such methods may also damage the nearby infrastructures and landscapes. The present study
explores an integrated trenchless solution for damage identification and mechanized retrofitting of domestic buried sewerage
pipelines of diameter ranging from 75 to 300 mm. A front-mounted camera of the retrofitting system assesses the damage
inside the sewer pipes. The retrofitting of the damaged part of buried pipe is achieved by impregnation of Glass Fiber
Reinforced Polymer (GFRP) composite sheet with 100:16 epoxy and hardener ratio. The wrapping of the GFRP sheets on
damaged part is done by inflation and deflation technique with a cylindrical rubber bladder connected by a flexible shaft.
The retrofitted sewer pipe can be resumed after 3–4 hours of applying the impregnated GFRP composite with above
retrofitting strategy.
 
Date 2023-07-06T04:44:44Z
2023-07-06T04:44:44Z
2023-07
 
Type Article
 
Identifier 0022-4456 (Print); 0975-1084 (Online)
http://nopr.niscpr.res.in/handle/123456789/62268
https://doi.org/10.56042/jsir.v82i07.2493
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source JSIR Vol.82(07) [July 2023]