Claim Missing Document
Check
Articles

Found 2 Documents
Search

Evaluasi dan Pengelolaan Lereng Bekas Tambang Breksi Andesit Dusun Siluk Kelurahan Selopamioro Kepanewon Imogiri Kabupaten Bantul Daerah Istimewa Yogyakarta Alwiyah Alwiyah; Herwin Lukito; Wisnu Aji Dwi Kristanto; Nandra Eko Nugroho; Ir. Suharwanto
Jurnal Lingkungan Kebumian Indonesia Vol. 1 No. 1 (2023): Desember
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/kebumian.v1i1.2055

Abstract

Siluk Area, Selopamioro Village, Imogiri District, Bantul Regency, Special Region of Yogyakarta, is one of the active community mining sites. These mining activities leave slopes that are not treated or repaired, so that they become a threat to soil and/or rock mass movements for the surrounding community. One of the former mining areas in Siluk hamlet is very close to residential areas. Therefore, it is necessary to study the stability and safety factors of the slope so that they can be the basis for determining the direction of ex-mining slope management.The methods used were literature studies, field surveys and mapping, and laboratory tests. The sampling method used was the purposive sampling method. Samples taken were used for testing physical properties (content weight, moisture content, porosity, and grain size), shear angle, and cohesion. The analysis methods used are the simplified Janbu method and the descriptive analysis method to evaluate the slope of the former mine. Based on calculations and testing, it is found that the three slopes are categorized as steep slopes with a safety factor value on the central and south-north slopes of 0.156, 0.620, and 0.367. Slope management carried out involves a change in slope geometry with the cut and fill method, planting vegetation in the form of Sengon trees, and planting land cover in the form of Vertiver grass
Arahan Reklamasi Lahan Pascatambang Tanah Liat (Clay) PT X Desa Temandang Kecamatan Merakurak Kabupaten Tuban Jawa Timur Novani Rahayu Ramadhanti Jatmiko; Herwin Lukito; Suharwanto; Wisnu Aji Dwi Kristanto; Andi Renata Ade Yudono
Jurnal Lingkungan Kebumian Indonesia Vol. 1 No. 1 (2023): Desember
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/kebumian.v1i1.2060

Abstract

The clay mining activities carried out by PT X have resulted in an excavation pit, if there is no post-mining management that is carried out, it will decrease the productive land of the community along with native flora and fauna. This research aims to provide recommendations for post-mining reclamation direction of clay. The method used is survey and mapping method refers to Matric 17 of the Decree of The Minister of Energy and Mineral Resources of The Republic of Indonesia Number 1827 K/30/MEM/2018 about Reclamation Assessment Guidelines for Production Operation and the things to be analyzed are the stages of reclamation activities that have been carried out and purposive sampling method for soil sampling which will later be tested in the laboratory and then the results obtained will be matched with criteria for soil analysis results. Based on the results the land stewardship that carried out was leveling, stocking top soil, making drainage, and channel repairment. The revegetation carried out was planting of klampis, vetiver, and trembesi around the mine road. The final completion carried out is treatment up to two years of age, fertilization, and checking of reclaimed plants. The recommended clay post-mining land reclamation direction is revegetation with vetiver plants (cover crops) with spacing of (1x1) meter, eucalyptus (fast-growing plant) with spacing of (3x1) meter, and peanut (local plants) with spacing of (30x30) cm, then will be planted with a pot system.