NUGROHO PADHI, ADITYO (2012) ANALISA KESTABILAN LERENG BLOK KEHAM PT. GUNUNGBAYAN PRATAMA COAL BLOK I KECAMATAN MUARA MUNTAI KABUPATEN KUTAI KARTANEGARA PROPINSI KALIMANTAN TIMUR. Other thesis, UPN "Veteran" Yogyakarta.
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Abstract
PT. Gunungbayan Pratama Coal Block I operates a coal mine located
Muara Muntai, District Kutai Kartanegara East Kalimantan. Mining area of PT.
Gunungbayan Pratama Coal Block I approximately ± 8.365 Ha wide with coal
production is 29.500 tonnes / month. Block Keham mining areas have not been
performed a mining activities, but from the design pit map found that some
overall slope in unsafe conditions, it is necessary to analyze and design the mining
slopes to prevent failure on a mine site.
PT. Gunungbayan Pratama Coal Blok I apply to mining slope design based
on the material compose the slope mining. Physical and mechanical parameters
obtained by the test material to be analyzed, the test was conducted in the
laboratory TEKMIRA Bandung.
Block Keham current conditions there are some designs that mine
openings in unsafe conditions. Laboratory test results on the top and then
determined the value that can represent these values were then used as data in the
analysis of slope stability. The value of the physical and mechanical properties
that is used is the average value of the results of laboratory tests. The average
value is used for sample rocks that tested each drill hole may not represent the
condition of the existing material characteristics.
Based on the simulation analysis showed a single slope with silt stone
material have SF 2,76, claystone have SF 2,72, sandstone have SF 4,29 and soil
have SF 1,99. Single slope analysis of simulation results can be said to be in a safe
condition with FK values ≥ 1.3. Analysis for the overall slope geometry created
several versions using a single slopes are 10 m high and 70 ° tilt. Then the high
slope whole match to be mined coal seams (coal seam target). Recommendations
overall slope for each incision can use on the slopes of the entirety of each drill
hole nearest the incision.
| Item Type: | Thesis (Other) |
|---|---|
| Subjek: | T Technology > TN Mining engineering. Metallurgy |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Eny Suparny |
| Date Deposited: | 25 May 2016 01:41 |
| Last Modified: | 25 May 2016 01:41 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/2354 |
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