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INDONESIA
Journal of Geoscience, Engineering, Environment, and Technology
Published by Universitas Islam Riau
ISSN : 2503216X     EISSN : 25415794     DOI : 10.25299
Core Subject : Science, Social, Engineering,
Earth & Planetary Sciences Engineering Environmental Science Physics
JGEET (Journal of Geoscience, Engineering, Environment and Technology) published the original research papers or reviews about the earth and planetary science, engineering, environment, and development of Technology related to geoscience. The objective of this journal is to disseminate the results of research and scientific studies which contribute to the understanding, development theories, and concepts of science and its application to the earth science or geoscience field. Terms of publishing the manuscript were never published or not being filed in other journals, manuscripts originating from local and International. JGEET (Journal of Geoscience, Engineering, Environment and Technology) managed by the Department of Geological Engineering, Faculty of Engineering, Universitas Islam Riau.
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Articles 551 Documents
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Prediction the Maximum Deflection of the Prototype of Nailed-slab Pavement System Using the Allowable Equivalent Modulus of Subgrade Reaction Puri, Anas; Oktavia, Ferly; Elizar; Dharmowijoyo, Dimas B.E.; Ali, Mujahid; Liza Evianti Tanjung
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.12061

Abstract

An equivalent modulus of subgrade reaction was proposed for analyzing the Nailed-slab Pavement System. This modulus is defined by accumulating the modulus of subgrade of the slab and the additional modulus of subgrade reaction which is contributed by a pile under the slab. The additional modulus can be defined by the Modified Hardiyatmo Method. The equivalent modulus of subgrade reaction only consideres a safety factor for additional modulus of subgrade reaction. In this research, a global safety factor will be considered for all modulus. This research is aimed to learn the prediction of the slab deflection by using the allowable equivalent modulus of subgrade reaction. The global safety factor was varied by 1.0; 2.0; 2.5; and 3.0. The slab deflection was calculated by using Beam on Elastic Foundation. Data of the nailed-slab and the soil were based on the previous researcher for a single pile nailed-slab model. Results show that the calculated deflection of the slab was in good agreement with the observed deflection. Increasing the global safety factor resulted in the over-estimated slab deflections. It means the design by using allowable equivalent modulus of subgrade reaction tends to result in a safety zone.
Value Engineering in Enhancing Green Building Innovation Kumara, I Nyoman Indra; Tapa, I Gede Fery Surya; Indrashwara, Decky Cipta; Pancane, I Wayan Dikse; Predana, Made Aryatirta
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.18570

Abstract

This research integrates the application of value engineering methods in buildings to enhance green building innovation. The use of value engineering methods, assisted by Dell'Isola Theory, functions as a structured framework to determine material substitution and streamline project value by considering quality, performance, cost, development sustainability, and energy efficiency. Through careful analysis and strategic application, this research presents innovations in improving cost efficiency and development sustainability in building construction projects. These findings indicate the potential for innovation in creating environmentally friendly yet economically viable environments. Furthermore, it can also contribute to reducing environmental impacts and supporting sustainable development goals.
Mechanism Formation Carbon Dioxide Around Muriah Trough And Bawean Arc, North East Java Basin, Indonesia Rachmawati, Dwi; Irfree, Baharianto
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.19121

Abstract

CO2 content in natural gas in Muriah Trough and Bawean Arc, North East Java Basin. Understanding the origin and distribution of carbon dioxide is important for the research of natural gas exploration risk. This research uses gas geochemistry to identify the origin of carbon dioxide formation around the Muriah Trough and Bawean Arc. The chemical composition of CO2 and δ13CCO2 was measured in 10 gas samples taken from 6 exploration wells around the Muriah Trough. The results of the analysis indicate the origin of the carbon dioxide and carbon dioxide mechanism around Muriah Trough and Baswean Arc derived from organic and inorganic processes. The process of forming the carbon dioxide mechanism around the Muriah Trough and Bawean Arc is dominated by inorganic processes, presumably derived from the mantle degassing process. The mantle Deggasing process was related to volcanism Muriah and Bawean the Late Miocene-Pliocene.
Deformation Of Lava Tounge at Semeru Volcano using Sentinel-1 DInSAR Chandra, Yuliana Iik Iswanti; Maryanto, Sukir; Susilo, Adi; Faridha Aprilia; Mayang Bunga Puspita
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.21444

Abstract

Indonesia is vulnerable to various natural disasters, especially volcanic eruptions.  Mount Semeru, located between Malang and Lumajang, is an active volcano with a history of significant eruptions.  The eruption on December 4, 2021, caused many casualties and infrastructure damage.  This research utilizes Sentinel-1 (SLC) satellite imagery to analyze deformation changes caused by the eruption, with a particular focus on DInSAR analysis to depict changes in the crater's shape.  Before the eruption, no significant volcanic activity was detected, resulting in no clear deformation changes, with a deflation range between -0.096 cm and -0.145 cm.  However, during the eruption, the outflow of lava forming lava tongues led to the formation of lava deposits that affected surface deformation.  During the eruption phase, the deformation changes indicate an inflation phase, with values ranging from 0.064 cm to 0.094 cm, reflecting surface movement due to the accumulation of volcanic material.  After the eruption, the deformation changes became more pronounced due to the perfectly and stably formed lava deposits, with an inflation value range between 0.037 cm and 0.079 cm, resulting in significant surface shifts.  Phase reading disturbances were also detected at several locations due to lahar flows that occurred during and after the eruption.  The results of this study provide beneficial information for the relevant parties in formulating disaster mitigation strategies related to Mount Semeru's activities, as well as in understanding the dynamics of surface deformation influenced by eruptions, lava flows, and the formation of lava tongues.
Comparison of Laminar, RNG, and LES Model for Wave Propagation Simulation with FLOW-3D Yuniardi, Rizaldi; Istiyanto, Dinar Catur; Wulandari, Ika; Harita, Yofan Tahamano Deo; Firmansyah, Raka; Rachman, Reno Arief
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 3 (2025): JGEET Vol 10 No 03 : September (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.3.13933

Abstract

Understanding wave transformation and its interaction with coastal structures is critical for shoreline protection and design. While physical modeling has traditionally supported such studies, its high cost has led to increased reliance on numerical modeling. This study uses FLOW-3D to simulate wave propagation in a scaled 2D coastal wave channel and compares the performance of three turbulence models: Laminar, Renormalized Group (RNG) k-ε, and Large Eddy Simulation (LES). Simulations are based on a 3-meter wave height, 12-second period, and 7-meter water depth, with wave elevation recorded at six probes along the domain. Results show that the LES model achieved the most accurate prediction, with a significant wave height of 3.01 meters at the structure location—an error of only 0.33%—outperforming RNG and laminar models. These findings highlight the superior turbulence resolution of LES in capturing energy dissipation and wave evolution. The study provides practical guidance for coastal engineers in selecting turbulence models based on accuracy and computational trade-offs. Future research should include model validation with experimental or field data and extend to irregular wave conditions to enhance real-world applicability.
Geothermal Potential of the Dimanjar District, Sumberarum,Tempuran Area Using Resistivity and Geochemical Data Approaches Fatimah; Trisnaning, Paramitha Tedja; trianda, obrin
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.16333

Abstract

Hot springs in geological science are associated with geothermal manifestations. The appearance of these hot springs indicates certain geological conditions in the area. In the Dimanjar area, Sumberarum sub-district, Tempuran sub-district, Magelang regency, there are hot springs which residents use for tourism. This research is about the geochemistry of hot springs and looks at the depth of hot springs using the Schlumberger configuration geoelectric method. There are two Schlumberger measurement lines, namely west east and north south, this is because the measurement target or the presence of the spring is perpendicular to the Ngasinan River. The data shows that there are two salt water aquifers at depths of 20-30 meters and 130 meters with resistivity values below 0.5 ohm meter, which is theoretically the resistivity of salt water. Geochemical data also shows that the Cl content is high and this is a mature hot spring. This geochemical data was analyzed from the chloride values of 10 hot springs that emerged both naturally and through drilling. Plotting data in a trilinear triangle indicates the water source comes from a reservoir. The data shows that all water samples are of the chloride type in the range of 40% to 10% mature water. Subsurface and subsurface data show that there are two saltwater aquifers that are quite far apart in depth, this could be due to developing tectonics.
Geodiversity on the Great Sumatran Fault on Sungai Penuh Aspiring for the Geopark Designation, Jambi, Indonesia Utama, Hari Wiki; Heriberta, Heriberta; Adriadi, Ade; Emilia
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 3 (2025): JGEET Vol 10 No 03 : September (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.3.16610

Abstract

Sungai Penuh is a municipality in Jambi Province which is located in the westernmost part of the administrative region. Naturally, this region has natural beauty as a tourist attraction, where landscape on the Great Sumatran Fault in the Barisan Ranges Zone. The existence of faults plays an important role as the main actor that causes deformation of rocks and natural landscapes, so that it can produce geodiversity. Thus, conditions like this can be used as an important role in the presence of geodiversity for the identification of sustainable geotourism development. The aim of this study is to provide the latest information regarding the existence of the geodiversity in the Great Sumatran Fault for aspiring geopark designation. Research methods for conducting geodiversity features of lithology, stratigraphy, geological structure, and landscape. Then, qualitative assessment of geodiversity includes of education, scientific, and tourism of geodiversity site. Stratigraphically in the research area is composed of pyroclastic Bandan, Sheared Basalt, Sungai Penuh Granodiorite, pyroclastic Pengasih, andesitic lava and volcanic breccia of Mt. Lumut, andesitic lava and volcanic breccia of Mt. Tarasih, andesitic lava and volcanic breccia of Mt. Talang, andesitic lava and volcanic breccia of Mt. Kebongsong, andesitic to basaltic lava and volcanic breccia of Mt. Raya. It has geodiversity that can be used as a geotourism site such as Peak Depati VII Coffee, Dissected Mountains Granitoid Sungai Penuh, Ancient Lake Kerinci, Khayangan Volcanic Plateu, Sungai Penuh Cold Spring, Lake Volcano-tectonic Kerinci. These conditions provide demands for the geotourism loving community to preserve geological heritage in the concept of geological conservation to be proposed as a geological site in the geotourism aspect. So that this role can later have a positive impact on the local community around geotourism objects based on sustainable geotourism development aspiring geopark designation.
Investigation of Aquifer Model to Potential of Ground Movement at Brau Village, Kota Wisata Batu, Jawa Timur, indonesia Maha Agung, Putera Agung; Gautama, Gregorius Aryoko; Istiatun; Amir, Mardiana; Adinegara, Aldo Wirastana; Eko Wiyono; Wacono, Sidiq
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 3 (2025): JGEET Vol 10 No 03 : September (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.3.16836

Abstract

Soft soils at Brau Village area, Kota Wisata Batu (KWB) usually form in alluvial highlands due to weathering of sedimentary rocks. An upper and lower aquifer of sandy layer exist between soft soil. Groundwater pools into aquifer layers and infiltration from surface water into the soft soil layers (clayey and/ or silty) generated a ground movement potential. Study will elaborate the behavior of layers of clayey and/ or silty separated by 2 (two) aquifer layers in detail causing some damages to infrastructure. Wall and/ or floor cracks at school buildings and collapse and/ or differential settlement in road pavement  are a failure of soil layers due to high pore water pressure coming from direction of aquifer zone especially during rainy season. Pore water pressures were determined by rate of settlement prediction from consolidation laboratory analyzed by Ying et al (2015) and actual measurement using electromagnetic data. Research results found that gradually increment of pore water pressure would exceed a total stress in reducing an effective stress drastically and created a location of initial ground movement at the toe of slope around infrastructure area. High pore water pressure due to the increment of water volume at aquifer layer can push down soil layers with safety factor (SF) < 1.0. At the same time, ground movement would generate cracks > 10 cm width at wall and floor of school building structure; and collapse or differential settlement occurred in road construction > 18 cm depth due to bonding agent separated between soil particles.
Stream Morphometry as Response to the Level of Tectonic Deformation on Sorowako and Surrounding Areas, Indonesia Sambodo, Tri Hananto; Sukiyah, Emi; Hutabarat, Johanes
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 3 (2025): JGEET Vol 10 No 03 : September (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.3.17977

Abstract

Sorowako and surrounding areas are geologically influenced by Sulawesi’s microcontinent movement, which has produced several geological phenomena. Morphometry is one of the parameter that can reveal geological condition of particular area. Morphometric analysis of water catchment area in Sorowako and surrounding areas using Bifurcation Ratio (Rb) and Drainage Density (Dd) can provide comprehensive information on level of deformation in Sorowako region. Analysis result of Bifurcation Ratio Index (Rb) on water catchment area reveals that Rb<3 value is dominant and equally spread in Sorowako region, it varies from 0.094 to 2.888. However in several place the value of Bifurcation Ratio (Rb) index is more than 5 (Rb>5) with varies from  5.142 to 10.250. Drainage Density (Dd) value ranges from 0.907 to 8.422 with an average value is 4.125 describes impact of erosion and tectonic on Sorowako region. Based on morphometric analysis of two parameters, Sorowako and surroundings area have been heavily impacted by tectonic activity on Sulawesi island. In western, eastern and northern regions on water catchment area, level of deformation tends to be higher compared to southern region. This can be seen on analysis result of water catchment area 43, water catchment area 196, and water catchment area 302 that have relatively larger number of stream orders, and also have Bifurcation Ratio’s value less than three (Rb<3). Information of tectonic deformation level on Sorowako region through morphometric analysis is important to further use as a basis for water catchment area management planning, so that it can identify areas prone to geological disasters. This fairly high level of tectonic deformation also believed to be a controlling factor for nickel grade contained in Sorowako and surrounding areas which allow supergene enrichment to occurs in rocks.
Community Based Inundation and Flood Mitigation in Palembang City, Indonesia Indrayani; Saputra, Rahmad Hidayat; Elvaria, Anna; Mirza, Akhmad; Najib, Ahmad; Prakoso, Agung; Anjani, Wenda Latifah
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 02 (2025): JGEET Vol 10 No 02 : June (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.02.18139

Abstract

The increasing intensity of rainfall in Palembang City has heightened the risk of hydrometeorological disasters, particularly flooding and inundation. Despite various efforts by the municipal government to mitigate these events, flooding continues to occur following episodes of high or prolonged moderate rainfall. This study analyzes flood mitigation strategies with focus on community participation in addressing recurring inundation. Data from a flood distribution map reveal 196 flood points across the city, with flood heights ranging from 20 to 50 cm, occurring on average 10-15 times annually and typically receding within 2 to 4 hours though longer durations are observed in several sub-districts. Surveys and interviews conducted in 18 sub-districts identified key contributing factors, including drainage obstruction due to waste, sedimentation, vegetation, unauthorized construction, limited catchment areas, and inadequate drainage connectivity. Additional challenges include diminished retention pond capacity caused by vegetation overgrowth, functional conversion, embankment erosion, and topographical disadvantages such as low-lying terrain. The study proposes the optimization and restoration of drainage infrastructure, community empowerment in catchment area management, and the installation of additional pumps and automated sluice gates as integrated solutions. These measures aim to enhance water flow and reduce the frequency and impact of flooding in Palembang City.

Page 51 of 56 | Total Record : 551

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