Development of Opto-Laser Borehole Scanning System

Drilling a borehole is one of method to assess site condition and acquire design required engineering parameters. Acoustic and optic televiewers have been successfully applied for geotechnical application. Since each system has limitations for their application, a new system integrating the features of the systems is required. In this paper, features of opto-laser borehole scanner are introduced. Using the assemblage of the CCD camera and laser sensors, proto type of the system was developed and primitive level of image and laser scanned data set were obtained. From the image data, 0.1mm resolution of color data set could be obtained and from the laser scanned data, three dimensional features of target surface could be identified. The acquired data shows that the promising applicability of the opto-laser borehole scanner.