Rakhman, Arie Noor and Zakaria, Zufialdi and Muslim, Dicky and Haryanto, Iyan and Mulyaningsih, Sri (2019) MODIFICATION OF ROCK MASS CLASSIFICATION IN THE ROCK SLOPE PLATY JOINTED ANDESITE AT SELOHARJO AREA. International Journal of GEOMATE, 16 (53). pp. 163-170. ISSN 2186-2982
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Abstract
The research area is located in the Seloharjo Area, the southern hills of Opak River, Bantul Regency, Yogyakarta Special Region, Indonesia. This study explores the application of rock mass classification assessment by modifying the Q system (SQR) for rock slope stability (SMR) where the constituent lithology is platy jointed andesite. Andesite in the research area is lava haze, where currently the rock slopes are prone to rockfall since the earthquake in 2006. Correction of Q system parameters in the research area is controlled by oriented slopes and joints that were weathered into clay minerals filling the joints. Slope between 74° and 78° with strikes of the slope face between N 110° E and N 228° E. Strike direction of the planar joint plane is between N 136° E and N 238° E with an angle of dip is 20° and 26°. The presence of secondary minerals dominated by smectite and illite clay minerals. Based on the value of the RMR between 43 and 72 with the SMR value between 59.99 and 87.03, the Q value between 7.47 and 299.35, the SQR value between 84.58 and 2,564.10, the equation in the form of SMR = 7LnSQR + 30 is obtained
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Modification, Q-system, Lava, Platy joint, SMR |
| Subjects: | Q Science > QE Geology |
| Divisions: | Fakultas Teknologi Mineral > Teknik Geologi (S1) |
| Depositing User: | Novri Aditya Nugroho |
| Date Deposited: | 01 Jul 2021 04:33 |
| Last Modified: | 21 Oct 2021 01:40 |
| URI: | http://eprints.akprind.ac.id/id/eprint/224 |
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