p-Index From 2021 - 2026
8.002
P-Index
Claim Missing Document
Check
Articles

Found 4 Documents
Search
Journal : Techno LPPM

Drain Hole Installation Design in an Open Coal Mine Tedy Agung Cahyadi; Doni Firdaus Fadlil; Indun Titisariwati; Hartono Hartono; Edy Nursanto; Muhammad Iqbal Ansori; Hengky Anggoro
Techno LPPM Vol 7, No 2 (2021)
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The presence of groundwater on the mine slopes can disturb the stability of the slope. High groundwater can increase pore pressure which affects the amount of load on the mine slope. In order to lower the groundwater level, it is necessary to have drainage holes to drain water naturally. This study aims to design a horizontal drain installation so that it can lower the groundwater table. The results of this study indicate the existence of an aquifer in the form of sandstones. In this aquifer horizontal drains will be installed. The results of this study are in the form of horizontal drains installation design, namely, the location of the installation of the horizontal drain, the diameter of the boreholes, the distance between the boreholes, the length of the horizontal drains installation pipe, and the angle of inclination of the installation of the horizontal drains.
MULTI CRITERION PRIORITY ON KRIGING OF GOLD RESOURCES PREDICTION Nur Ali Amri; Waterman Sulistyana Bargawa; Tedy Agung Cahyadi
Techno LPPM Vol 7, No 2 (2021)
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This paper describes of three things. First, the Kriging estimation on gold grade which is distributed in the vein. The empirical variogram method based on Matheron classical and robust of Cressie-Hawkins. The two empirical fitting on variogram theory of spherical and exponential equations of weighted least squares and ordinary least squares used. The predictions of six sizes block-Kriging respectively, 15×15, 25×25, 35×35, 50×50, 75×75 and 100×100 based on four variographic models. Second, determine the priority of 24 prediction combinations based on TOPSIS method. Finally, the multiple criterion decision making method namely, 15×15 block Kriging based on a robust empirical variogram of exponential weighted least squares model represents as the best result.
Drain Hole Installation Design in an Open Coal Mine Cahyadi, Tedy Agung; Fadlil, Doni Firdaus; Titisariwati, Indun; Hartono, Hartono; Nursanto, Edy; Ansori, Muhammad Iqbal; Anggoro, Hengky
Journal TECHNO Vol. 7 No. 2 (2021): November
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v7i2.5441

Abstract

The presence of groundwater on the mine slopes can disturb the stability of the slope. High groundwater can increase pore pressure which affects the amount of load on the mine slope. In order to lower the groundwater level, it is necessary to have drainage holes to drain water naturally. This study aims to design a horizontal drain installation so that it can lower the groundwater table. The results of this study indicate the existence of an aquifer in the form of sandstones. In this aquifer horizontal drains will be installed. The results of this study are in the form of horizontal drains installation design, namely, the location of the installation of the horizontal drain, the diameter of the boreholes, the distance between the boreholes, the length of the horizontal drains installation pipe, and the angle of inclination of the installation of the horizontal drains.
MULTI CRITERION PRIORITY ON KRIGING OF GOLD RESOURCES PREDICTION Amri, Nur Ali; Bargawa, Waterman Sulistyana; Cahyadi, Tedy Agung
Journal TECHNO Vol. 7 No. 2 (2021): November
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v7i2.6343

Abstract

This paper describes of three things. First, the Kriging estimation on gold grade which is distributed in the vein. The empirical variogram method based on Matheron classical and robust of Cressie-Hawkins. The two empirical fitting on variogram theory of spherical and exponential equations of weighted least squares and ordinary least squares used. The predictions of six sizes block-Kriging respectively, 15×15, 25×25, 35×35, 50×50, 75×75 and 100×100 based on four variographic models. Second, determine the priority of 24 prediction combinations based on TOPSIS method. Finally, the multiple criterion decision making method namely, 15×15 block Kriging based on a robust empirical variogram of exponential weighted least squares model represents as the best result.
Co-Authors A. Belo, Delia Ximenes Abdul Halim Pelu Achmad Sadikin Agung Yulianto Nugroho Agustian, Yusrian Aisyah Salma Aji Lambang Hidayah aldin ardian, aldin Alfianto, Danny Algifari, Arif Aminuyati Amrin, Dedy Andrawina Wina Angggian R., Shahensah Anand Anggoro, Hengky Ansori, Muhammad Iqbal Anton Sudiyanto Anton Sudiyanto Ardinanta, Desta Nugraha Arif Munandar aritonang, bobby gersom amari Arrina Khanifa Astika Putri Roshinta Bagus Wiyono Bagus Wiyono Bambang Dwijo Pranowo Barlian Dwinagara Bimantoro, Adyaksa Bagas Butungan, Jeragustivia Dahono Haryanto Dedy Amrin Deka Citra Dinata Delia Ximenes A. Belo Divina Maria Marques Doni Firdaus Fadlil Dwi Januar Ariyanto Dwi Mayanti Mega Lesmana Dwi Poetranto Waloeyo Adji Dwi Yolanda Sumbung Dwinegara, Barlian Dyah Nunki Yalesrie Eddy Winarno Eddy Winarno Eddy Winarno, Eddy Edy Nursanto Edy Nursanto Edy Nursanto Edy Nursanto Edy Nursanto Eman Widijanto Erwedi Erwedi Erwedi, Erwedi Fadlil, Doni Firdaus Faizal Agung Riyadi Ficky Adi Kurniawan Firmansyah, Ilham Fitri Nauli Fitriani Fitriani Gabriel Ranteallo Gandar Mahojwala Genadi Toar Nainggolan Gunawan Nusanto Gunawan Nusanto, Gunawan Gunawan, Risal Habibah, Annisa Ummu Hadi Purwanto Halimah Tusak Diah Hana Trijayanti Haq, Shofa Rijalul Hartono Hartono Hartono Hartono Hartono Hartono Hartono Sihir Hasywir Thaib Siri Hasywir Thaib Siri Hasywir Thaib Siri hasywir thaib siri, hasywir thaib Hendriono, Hendriono Hengky Anggoro Herlina Jayadianti Herniti, Dwi Heru Suharyadi Ifa Aulia Chusna Ilham Firmansyah Imawati, Rika Indah Setyowati Indah Setyowati Indun Titisariwati Indun Titisariwati Indun Titisariwati Indun Titisariwati, Indun Inmarlinianto Inmarlinianto, Inmarlinianto Jeragustivia Butungan Jeremia Christopher Herbert Siregar kadek nando setiawan nando Karel Lutan Warda Ketut Gunawan Ketut Gunawan Khanifa, Arrina Kresno Kresno Kresno Kresno Kurniawan, Fitra Kusumayudha, Sari Bahagiarti Larasati, Ivana Ardhia Leka, Emil Salim Kahmi Lesmana, Dwi Mayanti Mega Lilik Eko Widodo Linggasari, Shenny M. Rahman Yulianto Mariatul Kiptiah Marques, Divina Maria Masjon Parhusip Mendrofa, Yudha Chrisman Moh Ardiansyah Monica Warih Widi Krisanti Muhammad Arifin Nur Muhammad Fathurrahman Pitayandanu Muhammad Iqbal Ansori Muhammad Tri Aditya Muhammad Wildan Ilyasa Nainggolan, Genadi Toar Notosiswoyo, Sudarto Nugroho, Arif Rianto Budi Nur Ali Amri Nur Ali Amri Nur Ali Amri Nur Ali Amri, Nur Ali Nurkhamim Nurkhamim Nurkhamim Nurkhamim, Nurkhamim Pambayu, Aldio Kresna Pasa, Titis Ilham Permadi, Fajar Peter Eka Rosadi Peter Eka Rosadi, Peter Eka Pramono, Sidik Prasetya, Johan Danu Prawira, Hadi Putranto, Fery Izzan R.Horman, Juanita Rahmat Aditya Ramadhana Adi Rusyada Rendy Fahlevi Resa Risal Pradita Reza Adhi Fajar Rika Ampuh Hadiguna Rika Ernawati Rika Ernawati Rika Ernawati Rika Ernawati Rika Ernawati Rika Ernawati Rika Imawati Risaldi Hidayat Riyadi, Achmad Riyadi, Faizal Agung Rusdi Darmawan S. Koesnaryo Sabrina Umi Khabibah Sari Bahagiarti Kusumayudha Sari Bahagiarti Kusumayudha satria fitrio SB, Waterman Septianto, Erwin Setiyawa, Meindra Shahensah Anand Angggian R. Shofa Rijalul Haq Sigit Bagus Prabowo Singgih Saptono, Singgih Siregar, Imerilda Parlina Soekamto, Untung Stephanus Maria Eduat Sudarto Notosiswoyo Sudaryanto Suharsono Suharsono Suyono Suyono Suyono Suyono Suyono Syafrianto, Syafrianto Syamsul Arifin Syari Rahma Yanti Syihab, Zuher Tasidjawa, Gabriela Elisabeth Totok Sulistyo Tri Aditya, Muhammad Ulfa Nindya Kesuma Warsito utami, Hasrin citra Vega Vergiagara Vinansius Jimmy Jati Waterman SB Waterman SB Waterman SB Waterman SB Waterman Sulistyana Bargawa Waterman Sulistyana Bargawa Waterman Sulistyana Bargawa Waterman Sulistyana Bargawa Waterman Sulistyana Bargawa, Waterman Sulistyana Wawong Dwi Ratminah Wawong Dwi Ratminah, Wawong Dwi Wenny Kartika Widijanto, Eman Widodo, Lilik Eko Widyawanto Prastistho Winda Winda Yohana Nodarika Maharani Yohana Noradika Maharani Yohanes Ary Prayoga Yulantoro, Marchell Yulfanzah Zuher Syihab