KARYANTI, AGUSTIANA (2016) ANALISIS DAMPAKPENAMBANGAN TERHADAP PENURUNAN MUKA AIR TANAH PADA SUMUR - SUMUR DI SEKITAR TAMBANG BATUBARA KALIMANTAN SELATAN. Other thesis, UPN "VETERAN" YOGYAKARTA.
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Abstract
RINGKASAN
Penelitian dilakukan di tambang batubara yang berlokasi di Kabupaten Tabalong
Kalimantan Selatan Penelitian dilakukan karena adanyainformasidariwargamasyarakat yang
tinggal di sekitar area penambangan yang merasakanadanyapenurunanmukaair
tanahpadasumurgalimaupunsumurbordangkalsehinggamenyebabkankesulitanmendapatkan air
bersihterutamapadamusimkemarau. Penelitian hanya dilakukan di wilayah yang terdapat
pemukiman dan area penambangan yang relatif berdekatan letaknya.Data yang diambil berupa
data sekunder yang diambil dari literatur atau laporan perusahaan, diantaranya data curah hujan,
data muka air tanah ,datalubang bor, peta geologi, peta topografi, peta lokasi titik bordan peta
litologi
Penurunan muka air tanah terjadi di beberapa lubang bor karena kondisi lapisan akuifer yang
satu sistem dan arah kemiringan lapisan menuju ke pit/bukaan tambang, adanya bukaan tambang
/ open pit yang lerengnya memotong akuifer sehingga menyebabkan sumur menjadi kering (dry
well) dan ada sumur yang hilang (loss by mining), keberadaan lubang bor yang relatif dekat
dengan bukaan tambang, nilai K pada akuifer bebas dan tertekan mempunyai produktivitas
cukup/sedang dengan sebaran akuifer yang cukup merata sehingga memungkinkan untuk air
mengalir melalui akuifer dan mengikuti arah kemiringan lapisan.
Hasil perhitungan radius penurunan muka air tanah maksimum berkisar antara (590–1.828)m dan
penurunan muka air tanah yang termasuk dalam kondisi rawan dan kritis adalah lubang bor yang
berada di sekitar pit, sedangkan lubang bor yang relatif jauh dari pit kondisi penurunannya
masih dalam batas aman. Jarak sumur-sumur penduduk dari lubang bukaan tambang/pit adalah
sumur 01 berjarak 3087m, sumur 02 berjarak 4717m, sumur 03 berjarak 7062m, sumur 04
berjarak 6345m, dan sumur 05 berjarak 5199m. Berdasarkan jarak dari pit ke sumur-sumur
penduduk , radius penurunan muka air tanah tidak sampai ke sumur-sumur penduduk sehingga
penurunan yang terjadi pada sumur penduduk tidak berkaitan dengan adanya bukaan tambang.
ABSTRAK
The research was conducted in a coal mine located in the district of Tabalong South
Kalimantan . The research was conducted because of the information of the citizens living
around the mining area that feel the subsidence of ground water in dug wells and shallow
boreholes causing any trouble getting clean water especially in the dry season. Research only
conducted in residential areas and mining area that located relatively close. Data taken in the
form of secondary, taken from the literature or corporate reports, including rainfall data, ground
water data, drill holes data, geological maps, topographical maps, the location of the drill and
map lithological.
Groundwater subsidence happen because the condition of the aquifer layer and system
layer dip direction towards the pit / opening the mine, the mine openings / open pit slope was cut
causing aquifer wells become dry (dry well) and there is the well loss (loss by mining), where
drill holes are relatively close to the mine openings, the value of K in the aquifer free and
depressed productivity have enough / being with a fairly uniform distribution of the aquifer to
allow for water to flow through the aquifer and follow the direction of the slope layer.
The results of calculation of radius of maximum subsidence of ranges ground water (590-
1828) m and a decrease in ground water are included in critical condition and is prone to drill
holes located around the pit, while the borehole is relatively far from the pit boundary conditions
are still in decline safe. Distance of the wells from the open pit is wells 01within 3087m, wells
02 within 4717m, wells 03 within7062m, wells 04 within 6345m, and wells 05 within 5199m.
Based on the distance from the pit to the wells, groundwater subsidence radius was not until the
wells for residents so the decline in wells is not related to the open mine.
| Item Type: | Thesis (Other) |
|---|---|
| Subjek: | T Technology > TD Environmental technology. Sanitary engineering |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment |
| Depositing User: | Sarimin Sarimin |
| Date Deposited: | 26 May 2016 02:09 |
| Last Modified: | 26 May 2016 02:09 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/2483 |
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