Analisis Kekuatan Massa Batugamping Dengan Menggunakan Kaidah Hoek-Brown Failure Criterion-Roclab di Daerah Gunung Sudo Kabupaten Gunung Kidul Yogyakarta

Abstract

The research area is a limestone quarry region prospect, located in Gunung Sudo, Gunung Kidul
Regency, Special Region of Yogyakarta Province. Safety factor of bench in limestone quarry is
extremely determined by rock mass quality. The aim of this research is analyzing of rock mass
strength of limestone in the quarry prospect using the Hoek-Brown failure criterion. The research
used quantitative method. To obtain rock mass strength analysis of limestone needs some
parameters. The main parameters are uniaxial compressive strength of intact rock, GSI, lithology,
disturbance factor, unit weight and application for slope (height). To solve this analysis is assisted by
Roclab software. The Roclab is a software program for determining rock mass strength parameters
based on the generalized Hoek-Brown failure criterion. Final result of the research will be used for
safely mine design of the limestone quarry.