DEVELOPMENT OF THERMO-GRAPH INSPECTION FOR GEOMEMBRANE SEAM EVALUATION

摘要

This study attempted to develop of a method for detecting failures on welded seams between liner sheets,To identify the location of faulty seams, thermal images taken by a thermo graphic device were used to determine the unique temperature distribution on the faulty seam. It was shown that the real-time inspection for detecting faulty area was possible by taking thermal images of the seams while the sheets were welded by a self-propelled heat-welding machine. This method is more efficient compared to the conventional inspection method as that the seam can be examined with the welding work.