Research on welding and fixing technology of plastic waterproof board in underground excavation engineering of subway stations
In order to improve the welding quality and efficiency of plastic drainage boards in the underground excavation of subway stations,a three seam climbing welding and electromagnetic welding construction process was proposed for the welding and fixing construction of waterproof boards.The technical and economic benefits of three seam climbing welding and electromagnetic welding,hot melt welding and ultrasonic welding were compared and analyzed.The results showed that the comprehensive construction efficiency of using three seam climbing welding and electromagnetic welding for the construction of ECB plastic waterproof board could be 6 times and 2 times that of hot melt welding and ultrasonic welding,respectively.The economic benefits were 32％and 15.2％higher than that of hot melt welding and ultrasonic welding,respectively.The rewelding rate was reduced by 19％and 9％compared to hot melt welding and ultrasonic welding,respectively,which had a very obvious technical and economic advantage.
万方数据
维普
