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All Journal JTSL (Jurnal Tanah dan Sumberdaya Lahan) Transformasi: Jurnal Pengabdian Masyarakat Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir Jurnal Geosaintek Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Journal of Geoscience, Engineering, Environment, and Technology Civil Engineering Dimension Jurnal GEOSAPTA Jurnal Kelautan Nasional Dharma Bakti Indonesian Journal of Community Services Dinamika Journal : Pengabdian Masyarakat Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN Journal of Earth and Marine Technology (JEMT) Industrial Research Workshop and National Seminar Prosiding University Research Colloquium Darma Sabha Cendekia Jurnal Profesi Insinyur Indonesia Jurnal Geosaintek Jurnal Pengabdian Masyarakat Terapan Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir

Sachrul Iswahyudi

Jurusan Teknik Geologi, Fakultas Teknik, Universitas Jenderal Soedirman

Author-ID : 568624

Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Transportation Other

Published : 38 Documents Claim Missing Document

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Perhitungan Volume Stockpile Menggunakan Metode Cut And Fill Sebagai Upaya Penyelamatan Aset di Kabupaten Semarang Sachrul Iswahyudi; Muhamad Afirudin Pamungkas; Huzaely Latief Sunan; Maulana Rizki Aditama
Jurnal Geosaintek Vol 4, No 2 (2018)
Publisher : Institut Teknologi Sepuluh Nopember

Batubara merupakan sumber energi paling melimpah yang dimiliki Indonesia. Menyadari fenomena tersebut, pemerintah mencanangkan program peralihan sumber energi dari minyak bumi menjadi batubara untuk dapat dimanfaatkan oleh sektor industri sebagai upaya penghematan penggunaan BBM. Proses pengolahan batubara diawali dari penambangan pada pit kemudian penimbunan di stockpile.Lokasi stockpile salah satunya berada di pesisir utara Kabupaten Semarang. Berada di salah satu area yang rawan terhadap kenaikan permuakaan air laut, membuat stockpile menjadi tenggelam ketika air laut pasang. Oleh karena itu sebagai upaya penyelamatan dari hilangnya status hak terhadap stockpile tersebut, kegiatan penimbunan perlu dilakukan. Metode penimbunan yang dilakukan adalah pemetaan volume galian/timbunan (Cut/Fill). Perhitungan volume timbunan didasarkan dari pengukuran beda tinggi pada spotheight di area penelitian dengan metode grid volumes. Perhitungan volume timbunan pada penelitian ini dilakukan dengan dua alternatif elevasi lokal. Hasil perhitungan menunjukkan volume timbunan berdasarkan elevasi pondasi pabrik meubel lebih besar daripada elevasi pondasi pabrik Sido Muncul.

Perhitungan Temperatur Reservoir Panas Bumi Mata Air Panas Daerah Bantarkawung Menggunakan Metode Geotermometer Na-K Dan Entalpi-Silika Sachrul Iswahyudi; Laskarul Wildan Attabik; Rachmad Setijadi; Sukmaji Anom Raharjo
Jurnal Geosaintek Vol 5, No 1 (2019)
Publisher : Institut Teknologi Sepuluh Nopember

Manifestasi panas bumi yang muncul di daerah Bantarkawung dan sekitarnya sebagai refleksi sistem panas bumi adalah berupa mata air panas. Penelitian ini terkait pada dua mata air panas yaitu Mata Air Panas Cipanas dan Mata Air Panas Cilakar. Penelitian ini juga menggunakan dua mata air meteorik yaitu Mata Air Meteorik Warudoyong dan Mata Air Meteorik Cilimus sebagai data penunjang. Penelitian ini menggunakan analisis metode geokimia yang diolah berdasarkan data penelitian terdahulu untuk mengetahui tipe air panas bumi, geoindikator dan kesetimbangan fluida. Penentuan temperatur panas bumi daerah penelitian menggunakan dua metode yaitu metode geotermometer Na-K yang berdasar pada kandungan natrium dan kalium mata air panas dan metode diagram silika-entalpi yang berdasar kandungan silika dan entalpi mata air panas serta air meteorik. Berdasarkan analisis geoindikator Cl-Li-B, diinterpretasikan terdapat 2 sistem panas bumi dengan reservoir yang berbeda pada daerah penelitian yaitu Reservoir Cipanas dan Cilakar. Berdasarkan plot Na-K-Mg untuk mengetahui kesetimbangan fluida, MAP Cipanas merupakan fluida partial equilibrium sedangkan MAP Cilakar adalah fluida immature water. Temperatur panas bumi berdasarkan metode geotermometer Na-K adalah 80oC untuk MAP Cipanas dan 60oC untuk MAP Cilakar. Sedangkan berdasarkan metode silika entalpi adalah 145oC untuk MAP Cipanas dan 164oC untuk MAP Cilakar.

Studi Pendahuluan Geologi Telaga Tirta Marta, Purbalingga, Jawa Tengah Sachrul Iswahyudi; Indra Permana Jati; Rachmad Setijadi
Dinamika Rekayasa Vol 14, No 2 (2018): Jurnal Ilmiah Dinamika Rekayasa - Agustus 2018
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2018.14.2.189

Telaga Tirta Marta terletak di Desa Karangcegak Purbalingga. Telaga ini dibentuk oleh satu titik keluran air tanah di permukaan dengan debit yang cukup tinggi. Selain itu terdapat titik-titik keluaran air tanah lain yang membentuk kelurusan di sepanjang kaki bukit. Keberadaan telaga ini juga menarik karena berada pada tatanan geologi yang lebih besar, yaitu Gunungapi Slamet. Publikasi dari hasil penelitian pendahuluan ini coba menganalisis faktor-faktor geologi yang mengontrol kemunculan mata air Telaga Tirta Marta. Penelitian pendahuluan ini menggunakan beberapa metode penelitian, yaitu: studi pustaka, survei lapangan dan kompilasi data lapangan, peta SRTM, dan geologi regional. Studi pustaka dilakukan untuk mendapatkan informasi awal terkait geologi lokasi penelitian. Survei lapangan dilakukan untuk mendapatkan data geologi dan karakteristik mata air Telaga Tirta Marta. Kompilasi berbagai data termasuk peta SRTM dan geologi regional dilakukan untuk mendapatkan informasi saling melengkapi dari berbagai data. Kajian pendahuluan ini memperlihatkan beberapa faktor geologi yang mengontrol kemunculan mata air Telaga Tirta Marta. Faktor-faktor tersebut, adalah: morfologi lokasi telaga yang terletak di kaki Gunungapi Slamet, jenis litologi yang berupa perlapisan lava dan lava vesikuler, dan struktur geologi yang berkembang di lokasi tersebut.

Potensi Batuan Induk Batu Serpih dan Batu Lempung di Daerah Watukumpul Pemalang Jawa Tengah Sachrul Iswahyudi; Asmoro Widagdo
Dinamika Rekayasa Vol 5, No 1 (2009): Dinamika Rekayasa - Februari 2009
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2009.5.1.17

Shale and claystone of Watukumpul Area have capability to become the source rock of hydrocarbon because of the ability to conserve the organic material better. Potential of the rock become source rock is depend on its maturity and total organic carbon.This research test eight example of rock to analysis their total organic carbon (TOC) and rock eval pyrolisis. Only one sample is claystone, while the seven others are shales. The analyses provide data of total organic carbon, hydrogen index, and vitrinite reflectances which was used to interpret source rock potential of research area.Through this research is known that the organic material content of shale and claystone of research area own the fair level of total organic carbon. Organic material is included Kerogen Type III with the origin of land organism or plant.These kerogens of research area prefer to produce gas or gas prone. Organic material or kerogens have reached the matured phase to generate hydrocarbon (mature level). Special follow the rock sample came from Location 8 which have over mature level. Its high maturity is suspect have relationship with the intrusion of diorite igneous rock in this research area. Further research is needed to investigate the relationship between diorite intrusion and organic material in this research area.

Peningkatan kemampuan digitalisasi promosi dan pemasaran produk kelompok eks-buruh migran di Kabupaten Wonosobo FX Anjar Tri Laksono; Santi Dwi Astuti; Asmoro Widagdo; Sachrul Iswahyudi
Transformasi: Jurnal Pengabdian Masyarakat Vol. 17 No. 1 (2021): Transformasi Juni
Publisher : LP2M Universitas Islam Negeri Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20414/transformasi.v17i1.2867

[Bahasa]: Eks-buruh migran di Wonosobo memiliki asosiasi yang beranggotakan 30 orang. Hampir 80% anggota asosiasi memiliki unit bisnis di berbagai bidang seperti kerajinan kain batik, vas bunga, produk olahan pangan lokal, koperasi, jasa simpan pinjam, dan toko kelontong. Sekitar 90% anggota asosiasi tidak memiliki kemampuan untuk memanfaatkan teknologi informasi dan komunikasi dalam mempromosikan dan memasarkan produk dan jasa yang mereka miliki. Adanya era Revolusi Industri 4.0 dan wabah Covid-19 menyebabkan omzet usaha anggota mengalami penurunan hingga 40%. Oleh karena itu, tujuan pengabdian kepada masyarakat ini adalah meningkatkan kemampuan mitra dalam memasarkan produk mereka melalui teknologi informasi dan komunikasi. Metode yang dilakukan dalam kegiatan ini adalah pelatihan dan pendampingan mitra oleh akademisi Universitas Jenderal Soedirman. Materi pelatihan meliputi pengelolaan administrasi berbasis sistem informasi, perencanaan keuangan berbasis digital, pengunaan aplikasi akuntansi digital, pengelolaan risiko keuangan, dan pembuatan desain kontrol mutu produk inovasi. Setelah kegiatan pelatihan para buruh migran telah mampu membuat desain kemasan produk dengan Canva, membuat laporan keuangan dengan aplikasi catatan keuangan, dan mempromosikan produk usaha melalui media sosial. Pendampingan intensif selama satu bulan dilakukan untuk memastikan bahwa mitra mampu mengaplikasikan materi pelatihan secara berkelanjutan. Peningkatan kemampuan digitalisasi pemasaran produk untuk eks-buruh migran melalui kegiatan pengabdian ini mampu meningkatkan omzet penjualan rata-rata sebesar 22%. Kata Kunci: digitalisasi, promosi, migran, Wonosobo [English]: The ex-migrant workers association in Wonosobo has 30 members. Nearly 80% of the members have business units in various fields such as batik cloth, flower vases, locally processed food products, cooperatives, savings and loan services, and grocery stores. About 90% of the members do not have the ability to use information and communication technology (ICT) to promote and market their products and services. The era of the Industrial Revolution 4.0 and the Covid-19 outbreak caused the members’ business profit decrease by 40%. Therefore, the purpose of this community service is to improve the ability of partners in marketing their products through ICT. The method used in this program is training and mentoring by academics from Universitas Jenderal Soedirman. The training materials include information system-based administrative management, digital-based financial planning, the use of digital accounting applications, financial risk management, and quality control designs for innovative products. After the training, the participants are able able to design product packaging with Canva, make financial reports using financial records applications, and promote business products through social media. A month-intensive mentoring was carried out to ensure that partners were able to apply training materials continuously. In conclusion, this program develops the participants’ ability to digitize product marketing and increase their sales turnover around 22%. Keywords: digitization, promotion, migrants, Wonosobo

STRUKTUR GEOLOGI AREA BENCANA TANAH LONGSOR DI DESA TUMENGGAL, KECAMATAN PENGADEGAN-PURBALINGGA Asmoro Widagdo; Sachrul Iswahyudi; Anjar Tri Laksono
Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN) Vol 3, No 1 (2021): Prosiding
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.semitan.2021.1959

The Ligung Formation which is predominantly composed of claystone and the Kalibiuk Formation which is composed of volcanic breccias, both of which landslide simultaneously on the hillsides in the Tumenggal area, Pengadegan District, Purbalingga-Central Java. How the influence of the geological structure that has worked to compose the geological order of this area, which has an effect on the occurrence of the landslide, is the study that is revealed in this paper. Field observations of landslide locations were carried out by determining the position of the landslide, determining the type of bedrock, measuring the direction of the slope, measuring the dipping of rock layers and describing the distribution of landslides in the study area. The geological structures found in the study area are rock layers of the Ligung and Kalibiuk Formation and rock fractures/joints. Little dipping structure of the bed was observed in the field while intensive jointing was found in claystone. This structure has accelerated the weathering of claystone to form a thick soil. Andesite breccia found at the bottom of the slope has undergone intensive weathering. Rocks in the study area have a slope to the south and landslides to the north or towards the fore-slope, this is formed due to thick soil and intensive fractures/joints in the bedrock.

Geothermal Temperature Slope at the KDD – 1 Well, Kadidia and Surrounding Areas, Nokilalaki, Sigi, Central Sulawesi Province Irwan Firmansyah; Siswandi Siswandi; Sachrul Iswahyudi; Dudi Hermawan; Santia Ardi Mustofa
Journal of Earth and Marine Technology (JEMT) Vol 2, No 2 (2022)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2022.v2i2.2873

The need for alternative energy other than fossil energy is felt to be increasingly urgent for the fulfillment of domestic electrical energy. In meeting the demand for electricity, the government needs to investigate alternative geothermal energy, to find out the potential for geothermal energy to provide electricity. The realization of this policy is that the government conducts an integrated geothermal investigation to find prospective geothermal areas that can be developed as electric power. Nokilalaki District, Sigi Regency, Central Sulawesi Province is one area that has geothermal potential in Indonesia. The Kadidia geothermal area, Sigi Regency, Central Sulawesi Province is one of the volcanic geothermal fields that have good potential and needs to be investigated further, especially on geological conditions that affect the presence of geothermal energy. The research method used is the method of analyzing the results of field observations. From the observations, it was concluded that the KDD-1 temperature gradient well had a final depth of 703.85 m. The formation temperature is 96.87 ºC at a depth of 700-meters with an average slope value of 12.8 ºC/100 meters, and the estimated temperature at a depth of 1500 m (estimated top reservoir) is 220 ºC.

The conceptual model of Wae Sano Geothermal field based on geology and geochemistry data Fajar Rizki Widiatmoko; Mochammad Nur Hadi; Dedi Kusnadi; Sachrul Iswahyudi; Fadlin Fadlin
Journal of Earth and Marine Technology (JEMT) Vol 1, No 1 (2020)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2020.v1i1.1189

Wae Sano volcano is included in the inner Banda arc, Mount Wae Sano is a type C volcano and formed the Sano Nggoang crater lake. The magmatism activity produces geothermal manifestations such as; hot spring, rock alteration, and sulfur deposits, the hottest water temperature is 81 0C, with neutral pH, but the Sano Nggoang Lake water has acid pH. It becomes interesting to examine the characteristics of the geothermal system in that area. The research was conducted by Volcanostratigraphic studies to reconstruct the geological process and Geochemical sampling of hot springs, lake water, ground air, and the soil side to understand the subsurface characterization. The result showing some period of volcano products, with the youngest come from the product of Sano Nggoang 2 that spills its product to on the north-east side of Poco Dedeng volcano. The geochemical analysis shows all manifestations originate from one reservoir, chloride water type, NaCl type of the lake water with a few SO4 influence, presumably, the hot springs supply is influenced by seawater, the estimation of the reservoir has a temperature about ± 230 0C, with dacite and the rich organic sedimentary rock, and located at ± 1456 m from the manifestation, the isothermal section shows the rate of temperature increase at 97.07 m / 10 0C. The hypothetical resource is counted about 1,488.6 kWe.

The detailed geological investigation in Kadidia geothermal field and surrounding areas, Nokilalaki District, Sigi Regency, Central Sulawesi Province Irwan Firmansyah; Siswandi Siswandi; Sachrul Iswahyudi; Dudi Hermawan; Santia Ardi Mustofa
Journal of Earth and Marine Technology (JEMT) Vol 2, No 2 (2022)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2022.v2i2.2870

The need for alternative energy other than fossil energy is felt to be increasingly urgent for the fulfillment of domestic electrical energy. In meeting the demand for electricity, the government needs to investigate alternative geothermal energy, to find out the potential for geothermal energy to provide electricity. The realization of this policy is that the government conducts an integrated geothermal investigation to find prospective geothermal areas that can be developed as electric power. Nokilalaki District, Sigi Regency, Central Sulawesi Province is one area that has geothermal potential in Indonesia. The Kadidia geothermal area, Sigi Regency, Central Sulawesi Province is one of the volcanic geothermal fields that have good potential and needs to be investigated further, especially on geological conditions that affect the presence of geothermal energy. The research method used is the method of analyzing the results of field observations. From the observations, it can be concluded that the geomorphology of the research area is divided into Tongoa hills, Nokilalaki Granite Intrusions, Kamamora Hills, and Kadidia Alluvial Plains. The stratigraphy of the study area from old to young consists of Breccia, Sandstone, Granite Intrusion A, Granite Intrusion B, Granite Intrusion C, and Alluvial Plain. The geological structure of the study area consists of the Kamamora sinistral shear fault and the Kadidia dextral shear fault. The geological history of the study area begins in the early Miocene which is the beginning of the movement of the Palu - Koro fault.

Simulasi Daya Dukung Lingkungan di Pulau Gili Ketapang-Probolinggo dengan Mengandalkan Curah Hujan sebagai Pemenuhan Kebutuhan Air Muhammad Ramdhan; Semeidi Husrin; Dino Gunawan Pryambodo; Joko Prihantono; Syahrial Nur Amri; Hari Prihatno; Nasir Sudirman; Hasanuddin -; Sachrul Iswahyudi
Jurnal Kelautan Nasional Vol 14, No 1 (2019): April
Publisher : Pusat Riset Kelautan

Hujan merupakan salah satu sumberdaya air yang penting bagi kehidupan manusia. Keseimbangan lingkungan dapat diketahui dari ketersediaan sumber air yang berguna untuk memenuhi kebutuhan masyarakat. Daya dukung lingkungan adalah kemampuan lingkungan untuk menunjang kehidupan manusia dan makhluk hidup lainnya. Salah satu cara menentukan daya dukung lingkungan adalah dengan pendekatan ketersediaan dan kebutuhan air. Tujuan dari penelitian ini adalah melakukan simulasi terhadap status daya dukung lingkungan berdasarkan ketersediaan air bulanan dari curah hujan dan kebutuhan air di Pulau Gili Ketapang-Probolinggo dalam satu tahun. Metode yang digunakan untuk mengetahui daya dukung lingkungan adalah analisis kuantitatif melalui perbandingan antara penghitungan ketersediaan air dan kebutuhan air. Hasil penghitungan status daya dukung lingkungan berdasarkan ketersediaan air dan kebutuhan air di Gili Ketapang apabila dihitung berdasarkan kebutuhan layak air minum 130 liter/orang/hari adalah defisit sebesar 33.389.799,47 liter/bulan.

Co-Authors Aditama, Maulana Rizki Akhmad Khahlil Gibran Andreas, Roy Anjar Tilaksono Anjar Tri Laksono Anjar Trilaksono Aries Susanty Arwan Apriyono Asmoro Widagdo Asmoro Widagdo Asmoro Widagdo Asmoro Widagdo Asmoro Widagdo Asmoro Widagdo Asmoro Widagdo asmoro Widagdo Asmoro Widagdo, Asmoro Attabik, Laskarul Wildan Bela Agung Pratama, Bela Agung Dedi Kusnadi Dedi Kusnadi Dino Gunawan Pryambodo Dudi Hermawan Fadlin Fadlin Fadlin Fajar Rizki Widiatmoko Fajar Rizki Widiatmoko Firmansyah, Irwan FX Anjar Tri Laksono FX Anjar Tri Laksono FX Anjar Tri Laksono FX Anjar Tri Laksono FX Anjar Tri Laksono Gentur Waluyo Gentur Waluyo Gentur Waluyo, Gentur Gibran, Akhmad Khahlil Gumilar Ramadhan Hadi, Mochammad Nur Hari Prihatno Hasanuddin - Hermawan, Dudi Huzaely Latief Sunan Huzaely Latief Sunan Huzaely Latief Sunan Idra Permanajati Indra Permana Jati Indra Permana Jati Indra Permana Jati Indra Permanajati, Indra Irwan Firmansyah Januar Aziz Zaenurrohman Januar Fery Irawan Joko Prihantono Karisun, Kharisun Laksono, Anjar Tri Laksono, FX Anjar Tri Laskarul Wildan Attabik Mochammad Nur Hadi Muhamad Afirudin Pamungkas Muhamad Afirudin Pamungkas Muhammad Ramdhan Mustofa, Santia Ardi Nasir Sudirman Pamungkas, Muhamad Afirudin Paryanto Paryanto Prasetya, Yogi Adi Rachmad Setijadi Rachmad Setijadi Rachmad Setijadi Rachmad Setijadi Rachmad Setijadi, Rachmad Rino Wahyu Pamungkas Santi Dwi Astuti Santia Ardi Mustofa Semeidi Husrin Siswandi Siswandi Siswandi Siswandi, Siswandi Sukmaji Anom Raharjo Sumiyanto Sumiyanto Sunan, Huzaely Latief Syahrial Nur Amri Widiatmoko, Fajar Rizki Yanto Yanto Zaroh Irayani

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