Application of Chain Folding Shrinkage Technology in the Installation and Construction of Ductile Iron Pipes
Ductile iron pipes are widely used in water conservancy projects.In order to solve the construction problems,such as,difficulty in controlling the pipe spacing in the installation with the same slot in the large di-ameter;the difficulty for construction workers to installation position due to the angle deviation when connect-ing the elbows,low accuracy;the inability of the socket rubber ring to completely fit the groove,resulting in poor sealing performance of the interface;large deflection angle of the socket connection,resulting in rework of the project;and the difficulty of manual control of the pipe due to the lack of support or stable support at the bottom of the pipe during the installation process,which is easy to damage the pipes,etc.,the project depart-ment explored a set of chain folding shrinkage technology during the construction of the Chongqing West Water Resources Allocation Project,which effectively solves many problems existing in the installation and construc-tion of conventional ductile iron pipe elbows,speeds up the construction schedule,reduces the construction cost and safety risks,and improves the installation and construction quality of ductile iron pipe elbows.
Ductile iron pipeInstallationChain folding shrinkageLarge diameterElbow joint
国家科技期刊平台
NSTL
万方数据
