Ultrasonic Welding Technology of Waterproof Board Used in Shilin Tunnel

When tunnel waterproof board is connected to the geo-textile,traditional electro-heat pressure welder or gallus method are generally used for it,but the quality is difficult to be guaranteed.In order to solve such problem,ultrasonic welding process is used in waterproof board welding in Shilin Tunnel.The application results show that: with the improvement of equipment and process,the quality of waterproof board welding can be guaranteed,the work can be performed efficiently,and the cost can be reduced greatly.