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<![CDATA[Analisis Kekuatan Massa Batugamping Dengan Menggunakan Kaidah Hoek-Brown Failure Criterion-Roclab di Daerah Gunung Sudo Kabupaten Gunung Kidul Yogyakarta ]]>
<![CDATA[Wijaya, R. Andy Erwin]]>;
<![CDATA[Isnawan, Dianto]]>
<![CDATA[ PROMINE Vol 3, No 1 (2015): PROMINE ]]>
Publisher : <![CDATA[Jurusan Teknik Pertambangan FT UBB ]]>
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<![CDATA[The research area is a limestone quarry region prospect, located in Gunung Sudo, Gunung Kidul Regency, Special Region of Yogyakarta Province. Safety factor of bench in limestone quarry is extremely determined by rock mass quality. The aim of this research is analyzing of rock mass strength of limestone in the quarry prospect using the Hoek-Brown failure criterion.     The research used quantitative method. To obtain rock mass strength analysis of limestone needs some parameters. The main parameters are uniaxial compressive strength of intact rock, GSI, lithology, disturbance factor, unit weight and application for slope (height).To solve this analysis is assisted by Roclab software. The Roclab is a software program for determining rock mass strength parameters based on the generalized Hoek-Brown failure criterion.     Final result of the research will be used for safely mine design of the limestone quarry. Keywords: Rock mass strength, Limestone, Roclab.]]>
<![CDATA[ESTIMASI GEOLOGICAL STRENGTH INDEX (GSI) SYSTEM PADA LAPISAN BATUGAMPING BERONGGA DI TAMBANG KUARI BLOK SAWIR TUBAN JAWA TIMUR ]]>
<![CDATA[Erwin Wijaya, R. Andy]]>;
<![CDATA[Karnawati, Dwikorita]]>;
<![CDATA[., Srijono]]>;
<![CDATA[Wilopo, Wahyu]]>;
<![CDATA[Isnawan, Dianto]]>
<![CDATA[ PROMINE Vol 2, No 2 (2014): PROMINE ]]>
Publisher : <![CDATA[Jurusan Teknik Pertambangan FT UBB ]]>
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<![CDATA[The limestone mine activity needs a good mine plan design with the result that saved for the environment. Mine design is determined by rock mass quality. The rock mass quality in each mine location is different and that is  influenced by the geological conditions. Research area is located in limestone quarry Sawir Block of Kerek District, Tuban Regency, East Java Province. In limestone quarry area, there is cavity zone which consists cavity limestone layer at the wall of quarry bench. This cavity layer in limestone quarry has occurred by solution process. The cavity layer zone has more potential as weak zone which caused failure of bench in limestone quarry area. To analyze of the research of rock mass quality in cavity limestone layer using Geological Strength Index (GSI) system. Final result of the research is rock mass characterization specifically for cavity limestone layer. Keywords: Geological strength index, limestone, cavity layer]]>
<![CDATA[APLIKASI SLIDE SOFTWARE UNTUK MENGANALISIS STABILITAS LERENG PADA TAMBANG BATUGAMPING DI DAERAH GUNUNG SUDO KABUPATEN GUNUNGKIDUL ]]>
<![CDATA[Wijaya, R Andy Erwin]]>;
<![CDATA[Isnawan, Dianto]]>
<![CDATA[ Jurnal Teknologi Informasi RESPATI Vol 11, No 33 (2016) ]]>
Publisher : <![CDATA[Universitas Respati Yogyakarta ]]>
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DOI: 10.35842/jtir.v11i33.109
<![CDATA[ABSTRAKBeberapa aplikasi yang berbasis informatika saat ini telah banyak digunakan di berbagai bidang sektor industri termasuk industri pertambangan. Industri pertambangan merupakan suatu industri yang melibatkan berbagai disiplin ilmu. Salah satu sub bidang pertambangan yang paling penting adalah bidang geoteknik. Analisis geoteknik merupakan tahap awal sebagai dasar untuk menentukan stabilitas lereng penambangan. Dalam analisis ini memerlukan pengamatan dan olah data yang cermat karena berhubungan erat dengan keselamatan operasional penambangan. Oleh sebab itu diperlukan suatu alat bantu untuk mempermudah analisis data stabilitas lereng secara cepat dan akurat. Aplikasi yang digunakan dalam analisis stabilitas lereng ini adalah slide software. Aplikasi software ini dapat merancang desain geometri jenjang yang meliputi tinggi dan kemiringan jenjang tambang beserta tingkat faktor keamanannya. Hasil analisis yang diperoleh akan dijadikan dasar untuk membuat model desain tambang yang aman bagi lingkungan.Tulisan ini akan membahas bagaimana cara mengaplikasikan slide software dan hasil analisis geometri jenjang dan faktor keamanannya pada tambang batugamping di daerah Gunung Sudo, Kabupaten Gunungkidul, Yogyakarta.Kata Kunci : Slide Software, Stabilitas Lereng, Tambang Batugamping]]>
<![CDATA[APLIKASI SPLIT DEKSTOP SOFTWARE UNTUK MENENTUKAN BUTIR BATUGAMPING BERONGGA PADA ZONA CAVITY LAYER TAMBANG KUARI BATUGAMPING DI DAERAH SALE KABUPATEN REMBANGN JAWA TENGAH ]]>
<![CDATA[Wijaya, R. Andy Erwin]]>;
<![CDATA[Karnawati, Dwikorita]]>;
<![CDATA[Srijono, Srijono]]>;
<![CDATA[Wilopo, Wahyu]]>;
<![CDATA[Isnawan, Dianto]]>
<![CDATA[ Jurnal Teknologi Informasi RESPATI Vol 8, No 24 (2013) ]]>
Publisher : <![CDATA[Universitas Respati Yogyakarta ]]>
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DOI: 10.35842/jtir.v8i24.71
<![CDATA[Aplikasi industri informatika saat ini telah berkembang sangat luas dalam segala sektor. Berbagai aplikasi telah dirancang yang sesuai dengan kebutuhan industri di segala bidang. Salah satu bidang industri yang banyak menggunakan teknologi informatika adalah industri pertambangan. Industri Pertambangan sangat membutuhkan teknologi informatika dalam kegiatan pengelolaan sumberdaya mineral dan merupakan aspek yang sangat penting dalam meningkatkan kinerja pertambangan saat ini. Aplikasi beberapa software sangat diperlukan dalam berbagai analisis, termasuk jenis aplikasi untuk menentukan distribusi ukuran butiran pada batuan. Aplikasi yang digunakan adalah split desktop software. Aplikasi software ini sangat akurat dan cepat dalam menganalisis distribusi masing-masing ukuran butiran batuan yang dapat mempermudah dan menghasilkan dalam visualisasi bentuk dan ukuran butiran tersebut serta distribusinya. Hasil analisis yang diperoleh akan dijadikan dasar untuk mengetahui karakteristik butiran dalam suatu batuan. Tulisan ini akan membahas bagaimana cara mengaplikasikan split desktop software dan hasil analisis distribusi ukuran butiran pada batugamping berongga di cavity limestone layer daerah Sale, Kabupaten Rembang, Jawa Tengah. Kata Kunci : Split desktop, Ukuran Butir, Batugamping Berongga]]>
<![CDATA[ENVIRONMENTAL GEOLOGY POTENTIAL OF KALIGESING, PURWOREJO ]]>
<![CDATA[Dianto Isnawan]]>
<![CDATA[ KURVATEK Vol 2 No 2 (2017): November 2017 ]]>
Publisher : <![CDATA[Institut Teknologi Nasional Yogyakarta ]]>
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DOI: 10.33579/krvtk.v2i2.544
<![CDATA[AbstrakPenelitian ini dimaksudkan sebagai survei geologi lingkungan dengan tujuan untuk mengetahui karakteristik geologi lingkungan daerah Kaligesing, meliputi potensi sumber daya maupun bencana alam. Daerah Kaligesing termasuk dalam Kubah West Progo pada peta RBI Lembar Purworejo. Metode penelitian berupa survei geologi lapangan, untuk memperoleh data geomorfologi, stratigrafi, struktur geologi serta tata guna lahan. Analisis potensi pengembangan daerah dilakukan berdasarkan karakteristik geologi lingkungan setempat. Sumber daya alam ang potensial adalah pasir dan batu, serta tanah dan lahan yang relatif subur. Air permukaan didukung oleh sungai Jogobesan, bersama anak-anak sungainya. Airtanah dapat diperoleh dari mataair maupun sumur gali, dengan muka airtanah yang relatif dangkal. Mataair berdebit kecil hingga sedang (≤ 1 liter/detik). Bencana alam yang cukup potensial adalah erosi dan gerakan tanah. Banjir hanya berpotensi pada wilayah yang sempit dan setempat-setempat. Secara umum, geologi lingkungan daerah penelitian terbagi menjadi zona geologi lingkungan Pegunungan Gunungapi Purba dan Kars Jonggrangan yang masing-masing memiliki kekhasan tersendiri. Kata kunci: sumber daya alam, bencana alam, geologi lingkungan ]]>
<![CDATA[QUALITY AND GROUNDWATER FLOW AT DEGAN, BANJARARUM, WEST PROGO ]]>
<![CDATA[Dianto Isnawan]]>;
<![CDATA[. . T. Listyani R.A.]]>
<![CDATA[ KURVATEK Vol 4 No 2 (2019): November 2019 ]]>
Publisher : <![CDATA[Institut Teknologi Nasional Yogyakarta ]]>
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DOI: 10.33579/krvtk.v4i2.1141
<![CDATA[This research is a hydrogeological survey activity with the aim to determine the quality and pattern of groundwater flow in the Degan and surrounding areas, Banjararum Village, Kalibawang, West Progo District. The research method is carried out by hydrogeological surveys to collect groundwater data and groundwater quality in the form of pH, TDS and EC. The research area is included in the Dome of the Kulon Progo physiography, where this area is a non CAT area. The geomorphology of the study area in the north and west is dominated by relatively coarse landscapes forming hills, while in the central, eastern and southern parts it is a weak wavy landscape to the plains. The results showed that shallow groundwater depth of 1.2 - 10.8 m (under surface). The pattern of groundwater flow is to the east / southeast, with boundary conditions H5 and V1. Groundwater aquifers are composed of colluvium deposits and weathered - medium weathered rock. The pH value of water in the study area ranges from 6.7 -7.1; TDS is 165 - 901 ppm, while EC ranges from 187 - 1240 µS / cm. Thus, groundwater in the Degan area is neutral and tasteless.]]>
<![CDATA[EVALUATION OF GEOTHERMAL RESERVOIR CONDITIONS BASED ON WELL PADS GEOCHEMICAL DATA IN LX GEOTHERMAL FIELD ]]>
<![CDATA[Monica Megita Veronika Assa]]>;
<![CDATA[Dianto Isnawan]]>
<![CDATA[ KURVATEK Vol 7 No 1 (2022): Energy Management and Sustainable Environment ]]>
Publisher : <![CDATA[Institut Teknologi Nasional Yogyakarta ]]>
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DOI: 10.33579/krvtk.v7i1.3133
<![CDATA[The research was conducted at the Geothermal Company Energy Lx Area. The research area includes three well pads of geothermal power plants, namely X1, X2, and X3, which are stratigraphically composed of quaternary volcanic rocks. Based on the geochemical data of the well pad, it shows that the chloride type fluid is in equilibrium/partial equilibrium with the reservoir temperature in the range of 230 – 300°C from the silica and Na-K geothermometer analysis. The geothermal system in the research area is a hydrothermal magmatic system with two-phase fluid dominated by water. Evaluation of reservoir conditions from monitoring the X3 well pad shows a decrease in temperature for the last 3 years from 320°C in 2018 to 290°C in 2020. Graphical analysis of several chemical elements including Ca, Cl, SiO2, Boron and HCO3 shows a trend with the same pattern on several elements/compounds so it can interpret that there are no mixing process occurs in the reservoir, especially mixing with drill pipe wall cement or groundwater. Utilization of two-phase geothermal fluid in the Lx Geothermal Field produces electricity with a capacity reaches more than 100 MW and is still being developed in several areas that are currently in the geothermal geochemical exploration stage.]]>
<![CDATA[Hydrogeology Potential of Hargorejo Area Kokap Subdistrict West Progo Regency ]]>
<![CDATA[T. Listyani R.A.]]>;
<![CDATA[Dianto Isnawan]]>;
<![CDATA[Ign. Adi Prabowo]]>
<![CDATA[ Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 12, No 2 (2020): November ]]>
Publisher : <![CDATA[Institut Teknologi Dirgantara Adisutjipto ]]>
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DOI: 10.28989/angkasa.v12i2.772
<![CDATA[This research is a hydrogeological survey activity with the aim to determine the geological characteristics of groundwater in the Hargorejo area, Kokap Sub-district, West Progo. The study wants to know about the pattern of groundwater flow and water quality in the area. The northern part of the research area is included in the non-groundwater basin region of the West Progo Dome, while the southern part is included in Wates Groundwater Basin. Method of research is a field hydrogeological survey, to obtain geological and groundwater data. Groundwater flow pattern and quality analyses are based on groundwater data and pH, TDS and EC values. Groundwater can be obtained from springs or dug wells, with relatively shallow groundwater tables. The pattern of groundwater flow is generally to the south, with the H4 / H5 basin boundary type. Groundwater quality is quite good, with a pH value of 6.2 -7; TDS 191 - 558 ppm, and EC ranges from 279-783 µS / cm.]]>
<![CDATA[ESTIMASI GEOLOGICAL STRENGTH INDEX (GSI) SYSTEM PADA LAPISAN BATUGAMPING BERONGGA DI TAMBANG KUARI BLOK SAWIR TUBAN JAWA TIMUR ]]>
<![CDATA[R. Andy Erwin Wijaya]]>;
<![CDATA[Dwikorita Karnawati]]>;
<![CDATA[Srijono Srijono]]>;
<![CDATA[Wahyu Wilopo]]>;
<![CDATA[Dianto Isnawan]]>
<![CDATA[ PROMINE Vol 2 No 2 (2014): PROMINE ]]>
Publisher : <![CDATA[Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung ]]>
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DOI: 10.33019/promine.v2i2.76
<![CDATA[The limestone mine activity needs a good mine plan design with the result that saved for the environment. Mine design is determined by rock mass quality. The rock mass quality in each mine location is different and that is influenced by the geological conditions. Research area is located in limestone quarry Sawir Block of Kerek District, Tuban Regency, East Java Province. In limestone quarry area, there is cavity zone which consists cavity limestone layer at the wall of quarry bench. This cavity layer in limestone quarry has occurred by solution process. The cavity layer zone has more potential as weak zone which caused failure of bench in limestone quarry area. To analyze of the research of rock mass quality in cavity limestone layer using Geological Strength Index (GSI) system. Final result of the research is rock mass characterization specifically for cavity limestone layer.]]>
<![CDATA[Analisis Kekuatan Massa Batugamping Dengan Menggunakan Kaidah Hoek-Brown Failure Criterion-Roclab di Daerah Gunung Sudo Kabupaten Gunung Kidul Yogyakarta ]]>
<![CDATA[R. Andy Erwin Wijaya]]>;
<![CDATA[Dianto Isnawan]]>
<![CDATA[ PROMINE Vol 3 No 1 (2015): PROMINE ]]>
Publisher : <![CDATA[Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung ]]>
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DOI: 10.33019/promine.v3i1.87
<![CDATA[The research area is a limestone quarry region prospect, located in Gunung Sudo, Gunung KidulRegency, Special Region of Yogyakarta Province. Safety factor of bench in limestone quarry isextremely determined by rock mass quality. The aim of this research is analyzing of rock massstrength of limestone in the quarry prospect using the Hoek-Brown failure criterion. The researchused quantitative method. To obtain rock mass strength analysis of limestone needs someparameters. The main parameters are uniaxial compressive strength of intact rock, GSI, lithology,disturbance factor, unit weight and application for slope (height). To solve this analysis is assisted byRoclab software. The Roclab is a software program for determining rock mass strength parametersbased on the generalized Hoek-Brown failure criterion. Final result of the research will be used forsafely mine design of the limestone quarry.]]>
