NOVRANSYAH, AZIZ (2017) PENENTUAN SISTEM PENYANGGAAN TAMBANG BAWAH TANAH MELALUI KLASIFIKASI MASSA BATUAN PADA TAMBANG CIKONENG PT. CIBALIUNG SUMBERDAYA, PANDEGLANG-BANTEN. Other thesis, UPN "Veteran" Yogyakarta.
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Abstract
In underground mining activities, one of the problems is related to the rock
mass characteristics. The excavation is done by making a tunnel. This results is
changes on stability of rock mass. In anticipation of it, is by determining the correct
ground support system. The ground support system used is the ground support
system based on mass rock classification Rock Mass Rating (RMR) system and QSystem.
PT. Cibaliung Sumberdaya is an underground gold mining company and it
is a subsidiary of PT. Aneka Tambang, Tbk. The gold mine ore deposit is a lowsulphidation
ephitermal which form of vein extending from North to South, or from
Cikoneng to Cibitung. Based on the Rock Mass Rating (RMR) and Q-System
classification, rock mass in Cikoneng Cross Cut 6c is different at each research
location, but mostly fair rock mass type. It is also related to the application of
different ground support systems based on the rock mass classification.
This difference class of rock mass is influenced by different rock mass
characteristics at each onward of mining location. These characteristics include
the parameters in the rating of the RMR of rock strength, Rock Quality Designation
(RQD), discontinuity spacing, discontinuity condition (persistence, aperture,
roughness, infilling, weathered), groundwater conditions and discontinuity
orientation. And the parameters on Q-System rating are Rock Quality Designation
(RQD), Joint Set Number (Jn), Joint Rood Number (Jr), Joint Alteration Number
(Ja), Joint Water Reduction (Jw) and Stress Reduction Factor (SRF).
The results of data processing is showed generally that rock mass
classification, Rock Mass Rating (RMR) system and Q-System can applied for
determination of ground support system in underground mining tunnel.
Keywords: Rock Mass Rating (RMR), Q-System
| Item Type: | Thesis (Other) |
|---|---|
| Subjek: | T Technology > T Technology (General) |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Sarimin Sarimin |
| Date Deposited: | 09 Oct 2017 02:49 |
| Last Modified: | 09 Oct 2017 02:49 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/13204 |
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