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All Journal Indonesian Journal of Geography MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Pendidikan Geografi Undiksha Jurnal Teknik ITS IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science Jurnal Neutrino : jurnal fisika dan aplikasinya Journal of Engineering and Technological Sciences JGE (Jurnal Geofisika Eksplorasi) JFA (Jurnal Fisika dan Aplikasinya) Jurnal Geosaintek Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Aplikasi Teknik Sipil Journal of Marine-Earth Science and Technology Jurnal Geosaintek Geoid - Journal of Geodesy and Geomatics

Amien Widodo

Department Of Geophysic Engineering, Faculty Of Civil Engineering And Planning, Institut Teknologi Sepuluh Nopember, Jalan Arief Rahman Hakim, Surabaya 60111

Author-ID : 416087

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Materials Science & Nanotechnology Physics

Published : 68 Documents Claim Missing Document

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Identifikasi Intrusi Air Laut Pada Air Tanah Menggunakan Metode Induced Polarization Studi Kasus Daerah Surabaya Timur Bagas Aryaseta; Dwa Desa Warnana; Amien Widodo
Jurnal Geosaintek Vol 2, No 3 (2016)
Publisher : Institut Teknologi Sepuluh Nopember

Sebagian besar air tanah di wilayah kota Surabaya sudah mengalami intrusi air laut dan memiliki kadar garam yang tidak sesuai standar air minum. Permasalahan akifer air tanah yang sudah terintrusi air laut diidentifikasi menggunakan metode Induced Polarization dilengkapi dengan data sumur dan data resistivity sebagai data pelengkap. Pengukuran data sumur dilakukan di beberapa lima belas titik di Surabaya Timur yang hasilnya menunjukkan parameter-parameter air seperti salinitas, TDS, konduktivitas, dan pH. Pengukuran Induced Polarization dan Resistivity metode Wener-Schlumberger dilakukan di tiga lintasan di Surabaya Timur yang tersebar di daerah air asin, air payau rendah, dan air tawar. Penampang Chargeability dan Resistivity memiliki penetrasi kedalaman 9 m menunjukkan hasil yang cukup baik dalam mengidentifikasi akifer air tanah. Akifer dengan nilai resistivitas rendah (6.81 ohm.m) dan chargeabilitas rendah (<0.302 msec) besar kemungkinan merupakan air asin.

Risk Management Effectiveness of Oil And Gas Pipeline Construction in Java Island - Indonesia I Putu Artama Wiguna; Nadjadji Anwar; Amien Widodo; Nova Nevila Rodhi
IPTEK Journal of Proceedings Series No 6 (2017): The 3rd International Conference on Civil Engineering Research (ICCER) 2017
Publisher : Institut Teknologi Sepuluh Nopember

One of the important oil and gas industry is oil and gas pipeline which serves to support the gas transmission and distribution process. The oil and gas pipeline routes are so long and cross through some areas that certainly raises the risk of adversely affecting the environment, especially for the pipeline located in a densely populated area, where at certain conditions, the pipe can leak and may cause the explosion. Many researches have been conducted concerning on the project pipeline risks which concluded that the oil and gas pipeline project has very complex risks. In addition, the oil and gas project may cause a potential disaster. Currently oil and gas companies have been implementing risk management to minimize the negative impacts, but the negative impacts are still occurred. This is due to ineffective risk management implementation. This study aims to analyze the effectiveness of risk management system for oil and gas pipeline project in Java Island. Based on a deep study literature review, it shows that the effectiveness of risk management can be achieved by taking account into environmental, social and economic factors that are the pillars of sustainable development system. The potential disaster was also to be considered as an addition factor. Therefore, four identified factors were analyzed using Analytical Hierarchy Process (AHP) method. Data were obtained using questionnaire which were distributed to oil and gas project team. It is found that the most factors to be considered was social aspect (40%) and the other factors contributed 31% for disaster, 15% for economic, 14% for environment. Those factors should be taken account in the design stage as the most priority.

3D Resistivity Data Modelling to Identify Aquifer Geometry by Qualitative Analysis (Field Study: PDAM Surabaya Groundwater Conservation Area, Pasuruan) Ayi Syaeful Bahri; Amien Widodo; Widya Utama; Dwa Desa Warnana; Pegri Rohmat Aripin; Adib Banuboro; Robi Alfaq Abdillah
IPTEK Journal of Proceedings Series No 6 (2017): The 3rd International Conference on Civil Engineering Research (ICCER) 2017
Publisher : Institut Teknologi Sepuluh Nopember

The resistivity method is one of the geophysical methods used to identify the aquifer layer by utilizing the rock response to the flow of electric current. This method considered more effective and can give a good subsurface cross-section, especially the fluid response. In this research, 3D modelling for identify geometry of subsurface geological structures of this study focus in three area (Plintahan, Duren Sewu, and Karangjati) using 2D resistivity data. Data Measurement of 2D resistivity using Wenner-Schlumberger configuration with length of each line is 155 meters and the target depth is 30 meters. The purpose of this configuration is to get an inverse with a resolution that is good to the lateral and vertical. The results show that the types of rocks in the research area was clay, sand and sandy shale with resistivity value 50-150 ohm-meter where sand rocks interpreted as aquifer rocks at depths of 2-7 meters and a thickness of 2-5 meters. The result of the resulting 3D modelling showed that the aquifer layer in Plintahan area showed the geological continuity with anticline geometry, in another area the aquifer layer in Durensewu - Karang Jati area showed the aquifer geometry prediction but there is no continuity of the structure of each other.

Resistivity Tunnel Monitoring System Firman Syaifuddin; Amien Widodo; Muhammad Nurul Puji
IPTEK Journal of Proceedings Series No 2 (2018): The 2nd Conference on Innovation and Industrial Applications (CINIA 2016)
Publisher : Institut Teknologi Sepuluh Nopember

The development of an urban area must be supported by the construction of infrastructure such as public facilities. The crowded of urban area in Indonesia increasingly requires the existence of a mass transportation mode that is capable of carrying passengers in large amounts and relatively quickly. Recently Jakarta has proposed the construction of the MRT (Mass Rapid Transit) with underground lines utilize tunnel technology. Tunnel system was chosen as an alternative solution socioeconomic problems in the land problem and conditions of the existing urban planning. The geographical position of Indonesia is located in the equatorial zone which is the weather conditions have high levels of weathering and moisture or high humidity, this condition may result in changes in the level of strength of rock of the tunnel system in a relatively fast. In the construction of public facilities with the tunnel system need monitoring system the condition of the tunnel to avoid the dangers that may occur due to the failure of a tunnel system. To determine the level of moisture and water content in the rock or overburden a tunnel can be determined by utilizing the resistivity method. Resistivity method is a geophysical method that measures the magnitude of the resistivity of a material. Changes in moisture content and humidity levels of rock or soil in an area can be indicated by a change in the value of resistivity of rock or soil. In the measuring of the resistivity method needed good design to provide accurate information, especially if it will be used as a monitoring system for a tunnel. Development of measuring the resistivity method, and in particular data processing is done with the aim of optimizing the measurement process and the measurement results can be interpreted easily and be able to demonstrate a phenomenon that occurs in rocks or soil cover tunnel.

Tsunami Risk Mapping of Lumajang District Using Geographic Information System (GIS) Amien Widodo; Dwa Desa Warnana; Juan Pandu Gya Nur Rochman; Firman Syaifuddin; Erik Sapta Perbawa; Ary Iswahyudi; Wien Lestari
IPTEK Journal of Proceedings Series No 6 (2017): The 3rd International Conference on Civil Engineering Research (ICCER) 2017
Publisher : Institut Teknologi Sepuluh Nopember

Indonesia lied among the three of world major plates so that several districts along the southern coast of Java Island were vulnerabled to the tsunami including Lumajang. South coast of Lumajang had high population density and settlements and high levels of government and economic activity. Therefore, it is necessary to know the level of insecurity and vulnerability to the tsunami in order to be utilized as input of mitigation data for the preparation of regional spatial plans (RTRW) based on tsunami risk level. The objective of this research is to arrange the regional risk map for tsunami in Lumajang Regency using Geographic Information System (GIS) through approach of insecurity and vulnerability analysis of tsunami. The insecurity rate is analyzed based on seismicity map and run-up data of tsunami event in Lumajang District. Vulnerability approach used multicriteria such as land elevation, slope, coastal morphometry, land use, distance from the coast and distance from the river. The methodology that was used included data collections of both primary and secondary data such as satellite imagery of earth map, Lumajang statistical data. Each vulnerability data variable was processed to result a weighting and scores that its become the parameters for making a regional tsunami vulnerability map. The results showed three level of risks in five subdistricts that directly adjacent to the Southern Coast such as Yosowilangun, Kunir, Tempeh, Pasirian, and Tempursari. The high tsunami risk which covered almost along the coast, the ramps morphology, without any protective vegetation and human activities at the site while the medium of tsunami risk which were in areas with elevation more higher than the coastal and the low of tsunami risk had variations of topography, quite far from the coast and less human activities.

Web-Based Tsunami Early Warning System Daniel Siahaan; Royke Wenas; Amien Widodo; Umi Yuhana
IPTEK The Journal for Technology and Science Vol 24, No 3 (2013)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20882033.v24i3.552

Tsunami is a serious threat to the island nation such as Indonesia. The tsunami disasters that were occurred in some parts of Indonesia have immerged the need for tsunami early warning system that is reliable and can be applied to the Indonesian archipelago. North Sulawesi is one of the areas prone to tsunamis since this area lies in the path called the ring of fire's. This article describes a tsunami simulation application for the north coast of North Sulawesi. Web-based applications were built so that they can be monitored online from anywhere and at anytime. This system reads the real-time seismic data that affect the North Sulawesi region from a number of sources. Dynamic and static data that are received are processed using data mining method to predict the chances of a tsunami, while flood flooding algorithm is used to visualize the map of affected areas of North Sulawesi. The resulting information is available in detail in the form of web pages and also through short message to the relevant authorities handling of the tsunami disaster in order for them to act in accordance with applicable standard operating procedures. With this application, the public can obtain information that is more accurate. Relevant authorities can conduct tsunami disaster mitigation measures more effectively.

Identification of Soil Contamination using VLF-EM and Resistivity Methods: A Case Study Rahmatun Inayah; Bagus Jaya Santosa; Dwa Desa Warnana; Firman Syaifuddin; Juan Pandu Gya Nur Rochman; Wien Lestari; Amien Widodo
IPTEK The Journal for Technology and Science Vol 30, No 1 (2019)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Hazardous waste is a waste with properties which can pollute and damage the environment, human health, and other living things. Lakardowo is a village that is suspected of being contamination by hazardous waste derived from industrial activities. Measurements with the VLF-EM and Resistivity method were used in this study. In addition, ground water level mapping and soil sampling in locations around the industry were conducted for the XRF test. Groundwater mapping results show that groundwater flow lead to the Northeast-South and Southwest of the industrial site. The soil samples that have been tested by XRF show the presence of heavy metals, wherein hazardous wastes generally contain various types of heavy metals that are conductive or have low resistivity values. Quantitative interpretation of VLF-EM data shows the presence of low resistivity anomalies at several measurement sites, which are suspected to have been contaminated with soil by waste. Resistivity data processing results, showing a low resistivity anomaly (≤ 3 Ω.m) located to the north (near an industrial site) and spreading towards the southwest along the measurement path. The result of a combination of quantitative interpretations of both methods, obtained, the direction of anomalous flow of hazardous waste moves southeastward and towards deeper soil coating following the direction of rock coating.

Identifikasi Awal Model Akuifer pada Mata Air Umbulan dengan Menggunakan Geolistrik Konfigurasi Schlumberger Tatas Tatas; Mahendra A M; Siti Kamilia Aziz; Amien Widodo
Jurnal Aplikasi Teknik Sipil Vol 12, No 1 (2014)
Publisher : Departemen Teknik Infrastruktur Sipil Institut Teknologi Sepuluh Nopember Surabaya

Bencana kekeringan, saat ini menjadi salah satu bencana yang selalu datang setiap tahun di beberapa wilayah Indonesia. Tahun 2011, Badan Nasional Penanggulangan Bencana (BNPB) menyatakan bahwa bencana kekeringan mengancam produksi pangan nasional. Salah satu bentuk dari bencana kekeringan tersebut adalah berkurangnya debit atau bahkan matinya mata air. Mata Air Umbulan merupakan mata air yang memiliki potensi yang cukup besar dengan debit sebesar 4000-5000 liter/detik, dapat dijadikan sebagai sumber air baku. Terkait dengan potensi yang sangat besar tersebut maka perlu dipelajari bagaimana struktur geologi yang menjadi wadah bagi air tanah tersebut (hidrogeologi). Hal tersebut untuk dijadikan sebagai dasar untuk mengetahui perilaku air yang menjadi sumber Mata Air Umbulan. Salah satu metode yang dapat digunakan untuk mengetahui struktur hidrogeologi adalah dengan menggunakan geolistrik. Berdasarkan hasil pengukuran resistivitas struktur batuan maka dapat diperoleh kesimpulan bahwa nilai resistivitas batuan penyusun pada area penelitian berkisar antara 1–4800 Ωm. Berdasarkan hasil interpretasi geolistrik, batuan penyusun area penelitian berupa pasir, pasir tufan, breksi, breksi berpasir, tuf berpasir dan tuf. Lapisan yang berfungsi sebagai penahan air atau lapisan kedap adalah lapisan tuf, tuf berpasir, dan lava. Lapisan yang berfungsi sebagai akifer adalah lapisan pasir, pasir tufan, breksi dan breksi berpasir dengan kedalaman antara 25-125 meter.

Rancang Bangun Sistem Monitoring Pergerakan Tanah Menggunakan Metode Multi Segment Inclinometer Berbasis Accelerometer (Studi Kasus Model Lereng) Hamzah Afif; Amien Widodo; Juan Pandu Gya Nur Rochman; Firman Syaifuddin
Jurnal Geosaintek Vol 5, No 1 (2019)
Publisher : Institut Teknologi Sepuluh Nopember

Telah dilakukan rancang bangun alat monitoring pergerakan tanah dengan parameter yang dipantau antara lain perubahan sudut dan kadar kelembaban tanah. Metode yang digunakan adalah multi segment inclinometer yang dinilai lebih efektif karena dapat membaca pergerakan tanah melalui perubahan sudut yang bervariasi terhadap kedalaman. Prototype alat berupa multi segment inclinometer berbasis Arduino Mega 2560 sebagai mikrokontroler. Perubahan sudut diukur menggunakan inclinometer berbasis accelerometer MPU 6050 dan kadar kelembaban tanah diukur menggunakan moisture sensor dari DfRobot. Prototype alat dan sistem yang dibangun pada penelitian ini menggunakan hardware dan software dengan lisensi open source sehingga pembuatannya lebih mudah dan murah. Prototype alat diuji pada sebuah model lereng. Uji yang dilakukan yaitu uji pengaruh sudut dan uji penambahan air. Hasil uji pengaruh sudut sebelum longsor terjadi perubahan sudut sebesar 6° dalam setengah detik. Pada uji penambahan air perubahan sudut sebesar 7°-12° dalam setengah detik. Peruabahan kadar air sebelum terjadi longsor sebesar 21%. Data yang diperoleh dari sensor ditampilkan secara real time menggunakan antarmuka Processing dan disimpan dalam bentuk .csv. Hasil analisa data menunjukkan sistem monitoring yang telah dibuat dapat membaca indikasi terjadinya longsor.

ASESMEN SUMBERDAYA WARISAN GEOLOGI SEMBURAN LUMPUR DI KECAMATAN SEDATI, KABUPATEN SIDOARJO Amien Widodo; Juan Pandu Gya Nur Rochman; Anik Hilyah; Dhea Pratama Novian
Jurnal Geosaintek Vol 9, No 1 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25023659.v9i1.16656

Cekungan Jawa Timur Utara memiliki cadangan minyak dan gas bumi (migas) yang tinggi sekaligus menyimpan potensi semburan lumpur yang signifikan. Fenomena semburan lumpur ini menjadi suatu warisan geologi yang memiliki nilai aspek sejarah dan sangat penting dalam pengembangan penelitian. Keberadaan kawasan semburan lumpur di kawasan Kota Surabaya dan sekitarnya masih mendapatkan perhatian yang minim dari masyarakat serta pemerintah daerah setempat. Hal inilah yang mendorong dilakukannya penelitian berupa kajian kebumian dan asesmen dari warisan geologi semburan lumpur di kawasan ini, terkhusus pada Gunung Lumpur Kalanganyar, Sedati. Metode penilaian berdasarkan Petunjuk Teknis Asesmen Sumber Daya Geologi yang disusun oleh Badan Geologi, Kementerian Energi dan Sumber Daya Mineral (ESDM) berupa model asesmen untuk menilai potensi suatu situs warisan geologi, melalui beberapa kriteria, indikator dan parameter secara kuantitatif. Asesmen kuantitatif ini didasarkan pada faktor bobot meliputi penilaian suatu situs warisan geologi berdasarkan pada nilai - nilai sains, nilai – nilai edukasi, nilai – nilai pariwisata, dan penilaian pada resiko degradasinya. Asesmen sumberdaya warisan geologi ini didukung dengan aplikasi metode geofisika berupa Metode Magnetik, dimana metode ini memanfaatkan anomali magnet di suatu lokasi untuk dapat memperkirakan kondisi bawah permukaan suatu lokasi penelitian. Hasil dari akuisisi magnetik didapatkan dugaan struktur patahan di daerah tersebut. Dari integrasi informasi yang didapatkan antara studi literatur dari penelitian terdahulu, aplikasi Metode Magnetik, serta asesmen langsung di lapangan di dapatkan masuk kategori baik sebagai suatu sumberdaya warisan geologi. Masyarakat lokal diharapkan mempunyai pemahaman dan bersama-sama pemerintah membantu dalam membangun, menjaga dan pengembangan kawasan semburan lumpur di kawasan ini, terutama Gunung Lumpur Kalanganyar, Sedati, sebagai kawasan wisata warisan geologi di kawasan Surabaya-Sidoarjo

Co-Authors Adhitama Rachman Adib Banuboro Aditama, Ferdian Yoga Afif, Hamzah Ahmad Iqbal Hamami Alam, Kharis Aulia Ali Masduqi Andradit, Fikrizan Anik Hilyah Anindya Putri R Anindya Putri R Anwar, Nadjadji Arief Alihudien Arief Ismanto Arif, Musta'in Aripin, Pegri Rohmat Ariyanti, Nita Ary Iswahyudi Aryaseta, Bagas Aryaseta, Bagas Bahri, Ayi Syaeful Bella Esti Ajeng Syahputri Bimakurnia Septadi Chemistra, Paul Christopher Salim Daniel Oranova Siahaan Dhea Pratama Novian Dhea Pratama Novian Putra Dwa Desa Warnana Eko Puswanto Elfarabi Elfarabi Elfarabi, Elfarabi Erik Sapta Perbawa Fajar, M. Haris Miftakhul Fakhriar Naufaldi Faqih Ulumuddin Febrianty, Angeline Ferdian Yoga Aditama Fikri Abdullah Fikrizan Andradit Firman Syaifudin Fuadur K Ghazalli, Muhammad Gita Akbar Satriawangsa Gita Akbar Satriawangsa Hamami, Ahmad Iqbal Hamzah Afif Hanif Dhiyaz Ulhaq F Hardyani, Putry Vibry Hetty Triastuty Hetty Triastuty Hilyah, Anik I Putu Artama Wiguna Ira Mutiara Anjasmara Ira Mutiara Anjasmara, Ira Mutiara Irwan Setyowidodo, Bagus Jaya Santosa Ismantor, Arief Iswandaru, Yoga Satria Iswandaru Jaka Rahadiansyah Jamilah, Zahrotin Juan Pandu Gya Nur Rochman K, Fuadur Zakki Ketut Dewi Martha Erly Kharis Aulia Alam Kurniawan, Akbar Dwi Lestari, Wien Lukman Noerochim Lutfi Zakariah M Haris Miftakhul Fajar M, Mahendra A M. Singgih Purwanto Mahendra A M Mahendra Wirayudhatama Mariyanto Mariyanto Marsha Khairia Alfany Muhammad Ghazalli Muhammad Ghazalli Muhammad Mifta Hasan Muhammad Mifta Hasan Muhammad Nurul Puji Muhammad Reza Shalahuddin Noor Muhazzib F Muthiul Padlilah N R, Juan Pandu G Naufaldi, Fakhriar Nefrizal Nefrizal Nefrizal Nefrizal Nizar Dwi Riyantiyo Nova Nevila Rodhi Novian, Dhea Pratama Nugroho, Wicaksono Dwi Nurlaili Humaidah Nurokhim, Arif Padlilah, Muthi’ul Pamungkas, Adjie Paul Chemistra Pegri Aripin Pegri Rohmat Aripin Purwanto, M Singgih Purwanto, Mohammad Singgih Putra Sukandar, Eka Cahya Putry Vibry Hardyani Rahadiansyah, Jaka Rahmaningtyas, Anindya Putri Rahmatun Inayah Ramadhanty, Aura Zahra Rizky Rahmadi Wardhana Rizky Rahmadi Wardhana Robi Alfaq Abdillah Roslee, Rodeano Royke Wenas Salim, Christopher Septadi, Bimakurnia Singgih Purwanto Singgih Purwanto , Moh. Singgih Purwanto, Moh Siti Kamilia Aziz Sugeng Pribadi Sugeng Pribadi Syabibah Zakiyya Zukhrufah Syahputri, Bella Esti Ajeng Syaifuddin, Firman Syaifuddin, Firman Tatas, Tatas Thufeil Amr Adausy Umi Yuhana Ummi Fadlilah K Utomo, Agung M. Wardhana, Rizky Rahmadi Wardhana, Rizky Rahmadi Widya Utama Wijaya, I Putu Krishna Zakaria, Moch Lutfi

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