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Journal of Geoscience Engineering and Energy (JOGEE)
Published by Universitas Trisakti
ISSN : 27155358     EISSN : 27226530     DOI : https://doi.org/10.25105/jogee.v3i2.13860
Core Subject : Science, Education, Engineering,
Civil Engineering, Building, Construction & Architecture Education Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics
The main aim of the Journal Geoscience Engineering and Energy (JOGEE) is to provide an open access platform to the articles that resulted of high-quality research works related with the geoscience and energy field. This is open for papers of geology (petrology; volcanology and geothermal; sedimentology and stratigraphy; paleontology; structural geology and seismology; petroleum geosciences; mineral deposits and coal mining; remotee sensing,; hidrogeology; marine geology and oceanography; geological engineering; environmental and geohazard mitigation; and also geotourism), geophysics (physical geology; exploration Geophysics), geochemistry, energy of renewable (geothermal; ..)and non-renewable energy (petroleum engineering; G&G method; mineral deposits, coal and energy resources management),dll. The Journal Geoscience Engineering and Energy (JOGEE) welcome the submission of manuscripts that meet the general criteria of significance and scientific excellence. It caters to the requirements of the geologist, researchers, academicians and also students, lab professional, and industry that is involved in geoscience studies. This journal publishes 2 numbers per year at least 8-9 articles. Papers will be published approximately 14 days after acceptance.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 24 Documents
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Search results for , issue "VOLUME 4, NOMOR 2, AGUSTUS 2023" : 24 Documents clear
KARAKTERISTIK BATUGAMPING FORMASI WONOSARI DI DAERAH BUNDER DAN SEKITARNYA, WONOSARI,GUNUNGKIDUL D.I.Y : THE CHARACTERISTICS OF THE WONOSARI FORMATION LIMESTONE IN THE BUNDER AREA AND ITS SURROUNDINGS, WONOSARI, GUNUNGKIDUL, D.I.Y Surya Darma Hafiz; Moehammad Ali Jambak; Budi Wijaya; Mira Meirawaty; Cahyaningratri Prima Ryandhani; Wildan Tri Koesmawardani; Suherman Dwi Nuryana; Oliver Enrico Zefanya
Journal of Geoscience Engineering & Energy (JOGEE) VOLUME 4, NOMOR 2, AGUSTUS 2023
Publisher : Universitas trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i2.17301

Abstract

Studi ini bertujuan untuk mengkaji karakteristik  batugamping Formasi Wonosari di Desa Bunder, Kecamatan Ponjong, Kabupaten Gunungkidul, DIY. Analisis litologi mengungkapkan bahwa batuan wackstone berwarna coklat dengan tekstur bioklastik, terdiri dari sekitar 75% lumpur karbonat/mikrit dan 25% fragmen butiran. Kehadiran fosil meliputi foraminifera planktonik dan bentos, dengan fragmen bioklas yang utuh mengalami proses mikritisasi dan neomorfisme menjadi kalsit spar yang jernih. Pengamatan lapangan menunjukkan adanya singkapan batuan yang segar maupun lapuk, dengan jurus lapisan berkisar antara N100° E hingga 105° E dan kemiringan rata-rata sekitar 4° - 8°. Ketebalan perkiraan formasi ini adalah sekitar 150-200 m. Berdasarkan analisis mikropaleontologi, spesies foraminifera planktonik dominan seperti Orbulina universa dan Sphaerodinella subdehiscens mengindikasikan rentang umur antara N10-N18. Satuan ini menunjukkan adanya struktur sedimen berlapis baik dan struktur masif gelegar, menandakan pengendapan di lingkungan yang tenang dengan energi rendah. Penelitian ini memberikan pemahaman lebih baik tentang litologi, lingkungan pengendapan, dan perkiraan umur Formasi Wonosari di wilayah penelitian. This study focuses on the characteristic of the Wonosari Formation carbonate rocks in Bunder Village, Ponjong Sub-district, Gunungkidul Regency, DIY. The lithological analysis reveals brown-colored wackstone with a bioclastic texture, consisting of 75% mud-supported carbonate/micrite and 25% grain fragments. The fossil assemblage includes planktonic and benthic foraminifera, with intact bioclastic fragments exhibiting signs of micritization and subsequent neomorphism into clear calcite spar. Field observations indicate fresh and weathered outcrops with a bedding strike ranging from N100° E to 105° E and an average dip angle of 4° - 8°. The estimated thickness of the formation is around 150-200 m. Based on micropaleontological analysis, dominant planktonic foraminifera species such as Orbulina universa and Sphaerodinella subdehiscens suggest an age range of N10-N18. The unit displays well-layered sedimentary structures and occasional massive structures, indicating deposition in a low-energy, relatively calm environment. This research contributes to a better understanding of the lithology, depositional environment, and age estimation of the Wonosari Formation in the study area..
ANALISIS KUALITAS AIR TANAH SUMUR GALI DI DESA KARANGTENGAH, KABUPATEN BOGOR, PROVINSI JAWA BARAT: DUG WELL GROUNDWATER ANALYSIS IN KARANGTENGAH VILLAGE, BOGOR DISTRICT, WEST JAVA PROVINCE Abdurrachman Asseggaf; Dannum Sekar Arum; Arini Dian Lestari
Journal of Geoscience Engineering & Energy (JOGEE) VOLUME 4, NOMOR 2, AGUSTUS 2023
Publisher : Universitas trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i2.18079

Abstract

Air merupakan salah satu kebutuhan pokok manusia yang krusial keberadaannya dalam kehidupan. Pada makalah ini akan dibahas secara lebih terperinci kualitas air tanah yang didapatkan dari pembuatan sumur gali pada Desa Karangtengah, Kabupaten Bogor, Provinsi Jawa Barat. Pada penelitian ini melibatkan pengambilan sampel air pada dua buah sumur gali yang nantinya akan dianalisa lebih lanjut di laboratorium sesuai dengan ketentuan Permenkes No.32 Tahun 2017 mengenai standar baku air bersih, juga mengetahui asal dari air tanah tersebut. Metode yang digunakan dalam penelitian ini adalah eksperimen laboratorium dan analisis hidrogeologi mengenai akuifer yang menyimpan air tanah. Hasil uji laboratorium menunjukan bahwa kedua sumur tersebut tidak memenuhi standar baku mutu air bersih. Air sumur gali 1 memiliki pH sebesar 6,02 sedangkan air sumur gali 2 memiliki kandungan MBAS (Methylene Blue Active Surfactant) sebesar 0,134 yang melebihi batas baku mutu. Air tanah berasal dari akuifer tertekan yang terdiri atas satuan batulempung dan sisipan batupasir. Water is one of the basic human needs that is crucial for its existence in life. This paper will discuss in more detail the quality of groundwater obtained from the construction of dug wells in Karangtengah Village, Bogor Regency, West Java Province. This research involves taking water samples from two dug wells which will be further analyzed in the laboratory in accordance with the provisions of the Minister of Health Regulation No. 32 of 2017 concerning the standard of clean water, as well as knowing the origin of the groundwater. The methods used in this research are laboratory experiments and hydrogeological analysis of aquifers that store groundwater. The results of laboratory tests showed that the two wells did not meet the clean water quality standards. Dug well water 1 has a pH of 6.02 while dug well water 2 has an MBAS (Methylene Blue Active Surfactant) content of 0.134 which exceeds the quality standard limit. Groundwater comes from a confined aquifer consisting of claystone units and sandstone inserts.
ANALISIS GEOMORFIK DALAM MENENTUKAN AKTIVITAS TEKTONIK DAERAH BANDING AGUNG DAN SEKITARNYA, OKU SELATAN, SUMATERA SELATAN: GEOMORPHIC ANALYSIS IN DETERMINING TECTONIC ACTIVITY IN BADING AGUNG AND SURROUNDING AREA, OKU SELATAN, SUMATRA SELATAN Ramadhani, Ramaniya; Hastuti, Endang Wiwik Dyah
Journal of Geoscience Engineering and Energy VOLUME 4, NOMOR 2, AGUSTUS 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i2.15197

Abstract

Geomorfologi tektonik sebagai aspek utama yang mengendalikan perkembangan bentuk lahan pada wilayah tektonik yang aktif serta memiliki pengaruh yang signifikan terhadap sistem sungai serta bentang alam pegunungan muka di daerah Bandingagung dan sekitarnya. Studi ini memanfaatkan metode kuantitatif dan hipotetis, yang diawali dari pendekatan umum, setelah itu dilanjutkan ke pendekatan yang lebih khusus serta terfokus. Dimana studi meliputi penginderaan jauh dengan GIS, serta analisis geomorfologi menggunakan parameter morfometri, seperti: Valley Floor Width to valley height ratio (Vf), Mountain front sinuosity (Smf), Hypsometric Curve and Hypsometric Integral (HI), Drainage Density (Dd), Assymetry Factor(AF) dan Indeks Aktifitas Tektonik (IAT).  Hasil perhitungan IAT telah menyimpulkan bahwa daerah Bandingagung dan sekitarnya termasuk kedalam aktifitas tektonik kelas dua dan tiga atau kategori kelas tektonik sedang sampai tinggi. Daerah penelitian juga memiliki pola pengaliran sungai yang didominasi oleh pola pengaliran paralel yang dikontrol oleh struktur geologi. Berdasarkan hasil analisis tersebut maka dapat ditarik kesimpulan bahwa daerah Bandingagung dan sekitarnya terbentuk oleh aktivitas tektonik yang berpengaruh terhadap pembentukan morfologi yang dijumpai pada saat ini. Geomorphology tectonic as the main aspect that controls the development of landforms in active tectonic areas and has a significant influence on river systems and mountainous landscapes in the Bandingagung and surrounding areas. This study utilizes quantitative and hypothetical methods, starting with a general approach, then proceeding to a more specific and focused approach. Where the study includes remote sensing with GIS, as well as geomorphological analysis using morphometric parameters, such as: Valley Floor Width to valley height ratio (Vf), Mountain front sinuosity (Smf), Hypsometric Curve and Hypsometric Integral (HI), Drainage Density (Dd), Assymetry Factor (AF) and Tectonic Activity Index (IAT). The results of IAT calculations have concluded that the Bandingagung area and its surroundings are described as class tectonic activity 2 to 3 or the category of moderate to high tectonic class. The research area also has a river flow pattern which is dominated by a parallel flow pattern controlled by geological structures. Based on the results of this analysis, it can be concluded that the Bandingagung area and its surroundings were formed by tectonic activities that affect the formation of morphology found at this time.
ANALISIS KEMIRINGAN LERENG MENGGUNAKAN SIG UNTUK PENENTUAN TINGKAT KERENTANAN GERAKAN TANAH CIATER, JAWA BARAT: ANALYSIS OF SLOPE SLOPE USING GIS TO DETERMINE THE LEVEL OF VULNERABILITY TO GROUND MOVEMENT CIATER, WEST JAVA Darius, Yudha Ibnu; Anugrahadi, Afiat; Amri, Muhammad Adimas
Journal of Geoscience Engineering and Energy VOLUME 4, NOMOR 2, AGUSTUS 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i2.15863

Abstract

Penelitian terletak pada daerah Kecamatan Ciater,Kabupaten subang, Provinsi Jawa Barat dimana menurut BNPB memiliki tingkat resiko bencana yang tinggi salah satunya bencana gerakan tanah atau biasa biasa disebut tanah longsor. Kemiringan lereng merupakan salah satu faktor yang menyebabkan terjadinya gerakan tanah, Tujuan dari penelitian ini perlu diketahui kemiringan lereng mana yang rawan terjadinya gerakan tanah serta tingkat kerawanannya. Kemiringan lereng akan dibagi menjadi beberapa kelas berdasarkan persen kemiringan yang dimana akan di tumpang tindih dengan data kejadian gerakan tanah dengan menggunakan SIG. hasil dari penelitian adalah terdapat tiga kelas kemiringan dan 12 titik kejadian gerakan tanah dimana kemiringan 15-30% memiliki kerawanan tinggi sedangkan yang lainnya rendah. The research is located in the Ciater District area, Subang Regency, West Java Province which according to BNPB has a high level of disaster risk, one of which is a landslide disaster or commonly called a landslide. The slope of the slope is one of the factors that causes ground movement. The aim of this research is to know which slope is prone to ground movement and the level of vulnerability. The slope will be divided into several classes based on the percent slope which will be overlapped with the ground movement data using GIS. the results of the study are that there are three classes of slope and 12 points of occurrence of ground motion where the slope of 15-30% has a high vulnerability while the others are low.
ZONASI LONGSOR DI DESA TALUMELITO KECAMATAN TELAGA BIRU KABUPATEN GORONTALO PROVINSI GORONTALO: LANDSLIDE HAZARD ZONATION OF TALUMELITO VILLAGE, TELAGA BIRU DISTRICT, GORONTALO REGENCY, GORONTALO PROVINCE Maryati, Sri; Hutagalung, Ronal; maloho, chisilia
Journal of Geoscience Engineering and Energy VOLUME 4, NOMOR 2, AGUSTUS 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i2.15891

Abstract

Daerah penelitian secara administratif berada pada titik koordinat 123°0’25” - 123°1’31” BT dan 00°37’33” - 00°38’35” LU (WGS 84 Zona 51N). Lokasi penelitian memiliki luas wilayah mencapai 9 km². Maksud dari penelitian ini yaitu menggunakan sistem informasi geografis (SIG) dan overlay peta kemudian di tambah dengan survey geologi di Desa Talumelito, Kecamatan Telaga Biru, Kabupaten Gorontalo, Provinsi Gorontalo. Tujuan dari penelitian ini yaitu Mengetahui litologi penyusun daerah penelitian, Membuat peta dari setiap parameter, Melakukan tumpang susun dari setiap parameter, Membuat peta zonasi kerawanan tanah longsor. Metode yang digunakan dalam penelitian ini menggunakan metode geologi lapangan dan analisis sistem informasi geografis. Parameter yang digunakan pada penelitian ini parameter kemiringan lereng, penggunaan lahan, geologi, dan curah hujan. Hasil penelitian menunjukan bahwa daerah penelitian di kategorikan zona rawan longsor tingkat sedang yang terdiri dari material peyusunya alluvial (material Lepas). The research area is administratively located at the coordinates of 123°0'25" - 123°1'31" east longitude and 00°37'33" - 00°38'35" north longitude (WGS 84 Zone 51N). The research location has an area of 9 km². The purpose of this study is to use a geographic information system and map overlay and then add a geological survey Talumelito village, Telaga Biru district, Gorontalo regency, Gorontalo Province. The purpose of this research is to know the lithology that makes up the research area, make maps of each parameter, overlay maps, and make zonation maps. The method used in this research is field geology method and geographic information system analysis. The parameters used in this Which includes every parameter of slope, land use, geology, and rainfall. The results showed that the research area was categorized as a moderate landslide-prone zone consisting of alluvial milk material (release material).
IDENTIFIKASI JENIS LONGSORAN PADA TAMBANG TERBUKA DAERAH BERINGIN MAKMUR II, KECAMATAN RAWAS ILIR, SUMATERA SELATAN: IDENTIFICATION OF THE LANDSLIDE TYPES IN OPEN PIT MINING BERINGIN MAKMUR II REGION, RAWAS ILIR DISTRICT, SOUTH SUMATRA Zefanya Gian Aginta Kembaren, Zefanya Gian Aginta Kembaren; Ronoatmojo, Imam Setiaji
Journal of Geoscience Engineering and Energy VOLUME 4, NOMOR 2, AGUSTUS 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i2.15968

Abstract

Kestabilan suatu lereng sangat mempengaruhi proses penambangan dan keamanan tambang. Proses penambangan erat kaitannya dengan keadaan suatu lereng. Namun, proses – proses penambangan juga mempengaruhi keadaan suatu lereng, yang mengakibatkan gangguan pada kesetimbangan lereng berupa gerakan tanah atapun longsor. Untuk itu, penting untuk mengetahui faktor – faktor yang mengakibatkan longsor yang telah terjadi dan akan terjadi, terutama berdasarkan kondisi struktur pada lereng daerah penelitian, kemudian diintegrasi dengan analisis kinematik hasil analisis struktur pada lereng tersebut, dan menghasilkan ulasan berupa jenis longsoran dari lereng pada tambang terbuka Daerah Beringin Makmur II, yang akan menjadi data penting untuk mitigasi serta pencegahan longsor bagi perusahaan pertambangan. The stability of a slope greatly affects the mine process and it’s safety. The mining process is closely related to the condition of a slope. However, mining processes also affect the condition of a slope, which results in disturbances to the balance of the slope in the form of ground movements or landslides. For this reason, it is important to know the factors causing landslides that have occurred and will occur, especially based on the structural conditions on the slopes of the study area, then integrated with kinematic analysis of the results of structural analysis on the slopes, and produce reviews in the form of types of landslides from the slopes of the open pit mining Beringin Makmur II area, which will become important data for landslide mitigation and prevention for mining companies.
ANALISIS KESTABILAN LERENG BERDASARKAN METODE KINEMATIKA PADA DAERAH TAMBANG PT. LOTUS SG LESTARI, KABUPATEN BOGOR, PROVINSI JAWA BARAT: ANALYSIS OF SLOPE STABILITY BASED ON KINEMATIC METHOD IN THE MINE AREA OF PT LOTUS SG LESTARI, BOGOR REGENCY, WEST JAVA PROVINCE Erick Estrada Dolok Saribu, Erick Estrada Dolok Saribu; Ronoatmojo , Imam Setiaji
Journal of Geoscience Engineering and Energy VOLUME 4, NOMOR 2, AGUSTUS 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i2.15969

Abstract

Kestabilan lereng bergantung dengan taraf pelapukan serta struktur geologi yang terdapat di massa batuan seperti sesar, kekar, lipatan, dan lain sebagainya. Daerah penelitian ini dilakukan pada daerah PT. Lokasi Tanaman Lotus SG Lestari Rumpin, Kabupaten Bogor, Provinsi Jawa Barat. Tujuan asal penelitian ini ialah memilih tipe jenis longsoran yg akan terjadi dari diskontinuitas pengaturan data dengan metode kinematik. Sehingga penelitian ini menyampaikan ulasan tipe longsoran dari lereng tambang PT. Lotus SG Lestari. Slope stability depends on the degree of weathering and the geological structures present in the rock masses such as faults, joints, folds, and so on. This research area was carried out in the area of PT. Lotus SG Lestari Site Plant Rumpin, Bogor Regency, West Java Province. The original objective of this study was to select the type of avalanche that would occur from discontinuity orientation data using the kinematic method. So this study provides an overview of the types of avalanches from the mine slopes of PT. Lotus SG Lestari.
NANOFOSIL PADA SUMUR “LN” DI DAERAH CEKUNGAN JAWA TIMUR BAGIAN UTARA : NANOFOSCIL AT “LN” WELL IN THE NORTHERN EAST JAVA BASIN AREA rawy anggrainy, luvina nabila; Rendy, Rendy; Syavitri, Dewi
Journal of Geoscience Engineering and Energy VOLUME 4, NOMOR 2, AGUSTUS 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i2.15986

Abstract

Tahap awal meliputi studi litelatur yaitu mempelajari dan mengetahui kondisi serta karakteristik umum pada lokasi penelitian. Tahapan ini terdiri dari studi litelatur yang digunakan sebagai pedoman awal untuk mengetahui kesampaian, karakteristikk, dan kondisi daerah penelitian, tahapan berikutnya yaitu Analisis data sample mengunakan metode preparasi sample , tahapan akhir pembuatan biozonasi dan biostatigrafi mendapatkan hasil kesimpulan sebagai hipotesa dari penelitian. Didapatkan tiga jenis litologi batuan pada daerah penelitian yaitu, batupasir, batulempung, dan batuserpih. Berdasarkan satuan litostratigrafi dengan kesebandingan Formasi menurut Mudjiono, 2011 Satuan Perselingan Batu lempung dan batu serpih termasuk dalam Formasi Tawun dan Satuan Perselingan Batu lempung dan Batu serpih sisipan batupasir termasuk dalam Formasi Ngaryong dan ditemukan satu ketidakselarasan ditunjukkan dengan munculnya biodatum secara bersamaan Kandungan nanofosil pada daerah penelitian memiliki tingkat keragaman dan kelimpahan yang melimpah (Common) – sedikit melimpah (Few). Ditemukan sebanyak 15058 spesimen nanofosil dan 26 spesies nanofosil. The initial stage includes a literature study, namely studying and knowing the general conditions and characteristics of the research location. This stage consists of a literature study that is used as an initial guide to determine the accomplishments, characteristics, and conditions of the research area, the next stage is sample data analysis using the sample preparation method, the final stage of making biozonation and biostatigraphy gets the conclusions as a hypothesis from the research. Three types of rock lithology were found in the study area, namely, sandstone, claystone, and shale. Based on lithostratigraphic units with formation comparability according to Mudjiono, 2011 Claystone and shale intercalation units are included in the Tawun Formation and Sandstone intercalated claystone and shale intercalation units are included in the Ngaryong Formation and an unconformity was found as indicated by the appearance of biodatum concomitantly containing nanofossils in the study area has a high level of diversity and abundance (Common) - a little abundant (Few). 15058 nanofossil specimens and 26 nanofossil species were found.
ANALISIS LINGKUNGAN PENGENDAPAN PADA LAPANGAN AR & RB FORMASI TALANG AKAR, CEKUNGAN SUMATRA SELATAN : ANALYSIS OF DEPOSIT ENVIRONMENT IN AR & RB FIELDS OF THE TALANG AKAR FORMATION, SOUTH SUMATRA Bramantyo, Andreas Rendy; Burhannudinnur, Muhammad; Koesmawardani, Wildan Tri
Journal of Geoscience Engineering and Energy VOLUME 4, NOMOR 2, AGUSTUS 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i2.16008

Abstract

Penelitian ini dilakukan pada lapangan AR & RB, formasi Talang Akar, Cekungan Sumatra Selatan. Dimana formasi Talang Akar ini memiliki potensi yang sangat besar dalam memiliki kandungan minyak bumi dan gas di Cekungan Sumatra Selatan ini, namun tidak semudah itu untuk menemukan minyak dan gas, perlu dilakukan analisis yang mendalam dalam melakukan eksplorasi. Salah satu analisis yaitu analisis lingkungan pengendapan. Dalam melakukan analisis ini menggunakan software petrel 2017. Berdasarkan hasil dari pengolahan data menghasilkan bahwa lapangan AR & RB terbentuk pada lingkungan pengendapan fluvial, delta plain dan delta front. Pembagian sekuen pada lapangan ARB terbagi menjadi 3 dan memiliki fasies yaitu flooding surface 1 terdapat fasies fluvial channel, point bar, creavase splay dan floodplain, flooding surface 2 terdapat fasies distributary channel, mouth bar dan mud flat dan flooding surface 3 terdapat fasies mouth bar dan mud flat. This research was conducted in field AR & RB, Talang Akar formation, South Sumatra Basin. Where the Talang Akar formation has enormous potential in containing oil and gas in the South Sumatra Basin, but did not find it to find oil and gas, in-depth analysis is needed to carry out exploration. One of the analyzes is the analysis of the depotitional environment. In conducting this analysis using petrel 2017 software. Based on the results of data processing, it was found that the AR & RB field was formed in a fluvial, delta plain and delta front environment. Sequence distribution in field ARB is divided into 3 and has facies, namely flooding surface 1 which has fluvial channel, point bar, creavase splay and floodplain facies, flooding surface 2 has distributed channel facies, mouth bar and mud flat and flooding surface 3 has mouth bar and mud flat facies.
ANALISIS STABILITAS LERENG UNTUK PERENCANAAN BENDUNGAN JLANTAH DI DESA TLOBO, KECAMATAN JATIYOSO, KABUPATEN KARANGANYAR PROVINSI JAWA TENGAH: SLOPE STABILITY ANALYSIS IN THE JLANTAH DAM PLANNING AT TLOBO VILLAGE, JATIYOSO SUB – DISTRICT, KARANGANYAR DISTRICT, CENTRAL JAVA PROVINCE Dwi Saputra, Zanuar; Ronoatmojo, Imam Setaiji
Journal of Geoscience Engineering and Energy VOLUME 4, NOMOR 2, AGUSTUS 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i2.16060

Abstract

Stabilitas lereng merupakan faktor utama yang harus diperhatikan dalam kegiatan perencanaan pembangunan PT. Virama Karya yang terletak pada kecamata Jatiyoso, di karenakan dapat mengganggu kelancaran pembangunan dan dapat membahayakan keselamatan pekerja hal – hal yang dapat menyebabkan leren tidak stabil antara lain yaitu gempa bumi, struktur geologi, peledakan, dan material batuan penyusun lereng, pada penelitian ini dapat menggunakan metode RMR, SMR, dan GSI untuk dapat mengindentifikasikan dan memberikan rekomendasi terhadap kondisi lereng, kemudian menggunakan metode Janbu untuk mendapatkan hasil dari nilai faktor keamanan, pada penelitian ini didapatkan hasil pengukuran geometri lereng yang didapatkan dengan nilai Single Slope 50, tinggi 50 meter, lebar 80 meter, panjang jenjang Slope stability is an important factor that is considered on the bridge which is one of the accesses in the construction of hydropower at the JatiGede dam because it can interfere with the smooth transportation of materials in the construction of hydropower, things that can cause slopes to become unstable are earthquakes, geological structures, and materials. In this study, the slope compilers used the RMR and GSI methods to identify and provide recommendations for slope conditions, then used the Janbu method to obtain the safety factor value, in this study the rock mass conditions on scanlines 1 to 5 were very blocky and rough surface conditions. , weathered rock condition, the safety factor value on the slope is 0.497, and has a sliding wedge type landslide potential of 21.54%. Based on the recommendation slopes made with Slide 6.0 software in order to get a FK value> 1.25 to produce stable slope conditions and can minimize the dangers that can occur.

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