Efficient routine investigation method for maintenance of prevention structure against falling rock using GPS information

Abstract

This article proposes an efficient way of routine investigation for maintenance of the structure against falling rock based on the site simulations using a mobile GPS device. The simulations of investigation were conducted on the rope net countermeasures at ten locations by two technical groups. We compared trip time to reach the investigation site for two groups. Group-A carried only the site map as the information. On the other hand, Group-B carried the map and mobile GPS device. As a result, the total trip time by Group-B was shortened by 42% in comparison with Group-A. It was found that the mobile GPS device helped the staffs to get to the destination. The GIS system with GPS coordinate information about the locations of the infrastructures will make it possible for engineers to easily manage the integrated data and to share the detailed information about access route. In addition, that system will make it possible to plan the maintenance survey easily.