Nasution, Mustapa Effendi (2022) Perencanaan Penatagunaan Lahan Reklamasi Pada Area Disposal Di Pt. Baratama Rezeki Anugerah Sentosa Utama Kecamatan Rantau Pandan Kabupaten Bungo Provinsi Jambi. S1 thesis, Universitas Jambi.
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Abstract
Perseroan Terbatas Baratama Rezeki Anugerah Sentosa Utama, merupakan perusahaan yang bergerak di dalam usaha pertambangan batubara dengan metode penambangannya yaitu open pit mining. Mengacu pada Kepmen ESDM 1827 tahun 2018 bahwa setiap area lahan yang terganggu akibat kegiatan pertambangan baik di dalam maupun di luar tambang wajib dilakukan kegiatan reklamasi. Berdasarkan program rencananya, salah satu rencana kegiatan reklamasi di PT.BRASU akan dilakukan pada area disposal yang sudah tidak dipergunakan lagi dengan luas ± 1,5 ha. Berlandaskan peraturan yang terkait dan uraian rencana kegiatan tersebut maka, di angkatlah topik penelitian dengan tujuan penelitian yaitu, merencanakan kegiatan penatagunaan lahan pada area disposal di PT. Baratama Rezeki Anugerah Sentosa Utama berdasarkan kriteria keberhasilan menurut Kepmen ESDM No.1827 K/30/MEM/2018 dan mengetahui berapakah biaya keseluruhan yang harus dikeluarkan untuk melakukan kegiatan penatagunaan lahan. Penelitian tugas akhir ini menggunakan metode penelitian campuran, yaitu menggunakan metode kualitatif dan kuantitatif. Teknis kegiatan dilakukan dengan menata terlebih dahulu bagian lereng disposal dengan membuat 3 tingkat terassering berupa teras bangku dengan jumlah material yang harus dikupas 63.902,2 m3, kemudian dilakukan penaatan pada permukaan disposal untuk mendapatkan ketinggian dan tekstur permukaan yang seragam dengan menimbun material sebanyak 64.327,1 m3 dan mengupas material sebanyak 3.478,8 m3. Kegiatan selanjutnya yaitu melakukaan penebaran zona pengakaran dengan rencana ketebalan tiap area kerjanya yaitu 0,4 m dengan kebutuhan top soil 6.455,32 m3. Kegiatan penataan ini dilakukan dengan menggunakan alat mekanis berupa 1 unit Excavator Doosan 500 LCV, 3 unit Dump Truk Mitshubitsi Fuso 220 PS, dan 1 unit Bulldozer Caterpillar D8R. Pencegahan erosi menggunakan saluran drainage dilakukan dengan, membuat saluran dengan geometri: lebar permukaan saluran (B) = 0,9 m, Lebar dasar saluran (b) = 0,455 m, kedalaman saluran (d) = 0,395 m, dan panjang sisi miring saluran terbuka (a) = 0,41.m. Sedangkan pencegahan menggunakan tanaman vegetatif dilakukan dengan, menanam tanaman penutup legum cover crop jenis puerarie javanica dan jenis mucuna bracteate dengan total kebutuhan benih sebanyak 6,2 kg untuk luas lahan ± 1,5 ha. Adapun lamanya kegiatan penatagunaan lahan area disposal ini memakan waktu ± 36 hari, dengan total anggaran rencana yang akan dikeluarkan yaitu ± Rp. 808.001.836. Baratama Rezeki Anugerah Sentosa Utama Limited Liability Company, is a company engaged in the coal mining business with its mining method, namely open pit mining. Referring to Minister of Energy and Mineral Resources Decree 1827 of 2018 that every area of land that is disturbed due to mining activities both inside and outside the mine must carry out reclamation activities. Based on the planned program, one of the planned reclamation activities at PT. BRASU will be carried out in a disposal area that is no longer used with an area of ± 1.5 ha. Based on the relevant regulations and the description of the activity plan, the research topic was raised with the aim of research namely, planning land use management activities in the disposal area at PT. Baratama Rezeki Anugerah Sentosa Utama based on success criteria according to Minister of Energy and Mineral Resources Decree No.1827 K/30/MEM/2018 and find out how much the total cost must be spent to carry out land use stewardship activities. This final project research uses mixed research methods, namely using qualitative and quantitative methods. Technical activities are carried out by first arranging the slopes of the disposal by making 3 levels of terraces in the form of bench terraces with the amount of material to be peeled off 63,902.2 m3, then adherence to the surface of the disposal is carried out to obtain a uniform height and surface texture by stockpiling 64,327.1 of material. m3 and stripped 3,478.8 m3 of material. The next activity is to spread the root zone with a thickness plan for each work area of 0.4 m with a top soil requirement of 6,455.32 m3. This arrangement activity was carried out using mechanical devices in the form of 1 unit of Doosan 500 LCV Excavator, 3 units of Mitshubitsi Fuso 220 PS Dump Trucks, and 1 unit of Caterpillar D8R Bulldozer. Erosion prevention using drainage canals is done by constructing canals with the following geometry: channel surface width (B) = 0.9 m, canal base width (b) = 0.455 m, canal depth (d) = 0.395 m, and the length of the sloping side of the open canal (a) = 0.41.m. While prevention using vegetative plants is carried out by planting cover crop legume cover crops of the puerarie javanica type and mucuna bracteate type with a total seed requirement of 6.2 kg for a land area of ± 1.5 ha. The duration of land use stewardship activities in the disposal area takes ± 36 days, with a total planned budget of ± Rp. 808.001.836.
| Type: | Thesis (S1) |
|---|---|
| Uncontrolled Keywords: | penatagunaan lahan, disposal, lereng dan permukaan, drainage dan legum cover crop |
| Subjects: | L Education > L Education (General) |
| Divisions: | Fakultas Sains dan Teknologi > Teknik Pertambangan |
| Depositing User: | MUSTAPA EFFENDI NASUTION |
| Date Deposited: | 16 Dec 2022 06:38 |
| Last Modified: | 16 Dec 2022 06:38 |
| URI: | https://repository.unja.ac.id/id/eprint/42495 |
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