การพัฒนาโปรแกรมประยุกต์แอนดรอยด์สำหรับประเมินเสถียรภาพมวลหินโดยใช้การจำแนกมวลหิน

Abstract

Mining industries are often operated in rock mass conditions which can be caused rock mass failures prone to risking life and property of operators. Rock mass classification methods are preliminary rock mass stability estimation that obtained rapid and significant results. Nowadays, smartphone is the most popular digital devices in the world. The objective of this research is to develop an Android application for estimating preliminary rock mass stability using rock mass classification methods. The users can perform this application to estimate rock mass stability instantly by their Android smartphone. This introducing application makes engineering work more safety and suggests preliminary support. Four rock mass classification methods have been programmed in the application, consisted of Rock Mass Rating (RMR) for estimating rock mass stability of tunnel and dam foundation, Slope Mass Rating (SMR) for estimating rock slope stability, Rock Mass Quality (Q-system) for estimating preliminary support methods for tunnel that constructed from drilling and blasting and Geological Strength Index (GSI) for estimating preliminary rock mass properties, especially cohesion and uniaxial compressive strength ratio and internal friction angle of rock mass. Comparison between calculation logics of this application and traditional calculation is acceptable. The PSU-RMC was applied with case studies in 5 conditions: the sandstone intercalated shale slope, the hornfels slope of quarry, the claystone with coal seam slope of open pit mine, the horseshoe adit in bedded limestone area and the limestone with dolomite slope of quarry. The results of case studies of the application were compared with some literature reviews. All of the case study results are consistent.