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All Journal Bina Tambang Ranah Research : Journal of Multidisciplinary Research and Development
Muhammad Zaki
Universitas Negeri Padang
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Transportation Other

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Perencanaan dan Biaya Reklamasi pada Lahan Bekas Penambangan Batu Kapur di Front IV Bukit Karang Putih PT Semen Padang Kecamatan Lubuk Kilangan Kota Padang Provinsi Sumatera Barat Muhammad Zaki; Yunasril Yunasril; Ansosry Ansosry
Bina Tambang Vol 4, No 3 (2019): JURNAL BINA TAMBANG
Publisher : Jurusan Teknik Pertambangan FT UNP

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Abstract

Abstract. PT Semen Padang is a limestone mining company located in Bukit Karang Putih, Padang City, West Sumatra Province, which has a Front IV mining area located in the Indarung VI mining area. In the area there are ex-mining areas (areas A, B and C) covering an area of 3 hectares which have been reclaimed but are not well-organized, located west of Crusher VI. Many relatively steep cliffs, such as in area A with a slope of 42 ° - 61º, area B with a slope of 45° and area C with a slope of 58º. This situation has the potential for landslides and causes danger in the Mobile Crusher VI series. The level geometry in the reclamation area has 5 levels with different lengths, widths, heights and slopes, and has a single slope on the left and right. When it rains the water flow in the field if the Front IV area of 15.15 Ha leads to that area and will disrupt the production activities in Crusher VI and can cause erosion. Therefore, re-reclamation planning and design costs are needed. The reclamation plan starts from the land arrangement that starts from the upper land in the form of dredging, stockpiling and overburden material removal, as well as the formation of 10 terraces on the slope of the reclamation area with a tilted bench terrace at 3%. After that management of top soil and sub soil, planting cover crops, revegetation by planting trembesi trees, maintenance for the first 3 years, and calculating the costs that will be incurred by the company in the reclamation process. Based on calculations in the planning of reclamation of ex-mining land by means of revegetation, the total total cost is obtained at Rp. 2.855.627.367.Keywords:  Front IV, Crusher VI, Reclamation, Revegetation, Cost Design
Pengembangan Jobsheet Berliterasi Kurikulum 2013 Pada Mata Pelajaran Instalasi Penerangan Listrik Kelas XI TKL Di SMK N 1 Bukittinggi Muhammad Zaki; Syamsuarnis
Ranah Research : Journal of Multidisciplinary Research and Development Vol. 2 No. 2 (2020): Ranah Research : Journal Of Multidisciplinary Research and Development (Februar
Publisher : Dinasti Research

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Abstract

Penelitian ini bertujuan untuk menghasilkan jobsheet Instalasi Penerangan Listrik (IPL) yang valid, praktis dan efektif serta sesuai dengan kurikulum 2013. Jenis penelitian yang digunakan adalah penelitian R&D (Research and Development) dengan model 4D (Define, Design, Develop and Dissaminate). Subjek penelitian siswa kelas XI TKL 2 SMK N 1 Bukittinggi. Penelitian pengembangan ini menggunakan angket validitas, praktikalitas dan efektifitas (rubric). Berdasarkan hasil penelitian, jobsheet yang digunakan dalam kategori sangat valid dengan nilai persentase rata-rata 84%. Uji praktikalitas oleh responden guru mendapat nilai persentase 87% dan responden dari 35 orang siswa mendapat nilai persentase rata-rata 89%. Hasil uji praktikalitas oleh responden guru dan siswa dinyatakan bahwa jobsheet sangat praktis. Uji efektifitas menggunakan penilaian kerja siswa berupa rubric. Dari 35 orang siswa kelas XI TKL 2 SMK N 1 Bukittinggi, 32 orang siswa dinyatakan tuntas dan 3 orang siswa dinyatakan belum tuntas sehingga uji efektifitas mendapatkan nilai persentase rata-rata 91% yang artinya jobsheet yang digunakan sangat efektif. Berdasarkan hasil penelitian tersebut dapat disimpulkan bahwa jobsheet yang dikembangkan sangat valid, praktis, dan efektif.
Co-Authors Ansosry Ansosry Syamsuarnis Yunasril Yunasril