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All Journal Bulletin of Scientific Contribution : Geology Jurnal Penelitian dan Karya Ilmiah Lembaga Penelitian Universitas Trisakti Journal of Geoscience Engineering and Energy (JOGEE) JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Jurnal Eksakta Kebumian
Yuda, Himmes Fitra
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ANALISIS JENIS TANAH UNTUK PENENTUAN KAWASAN RESAPAN AIR KELURAHAN KAPUK, KECAMATAN CENGKARENG JAKARTA BARAT: ANALYSIS OF SOIL TYPE FOR DETERMINATION KAPUK DISTRICT WATER ABSOLUTE AREA, CENGKARENG DISTRICT, WEST JAKARTA Ahmad, Riduan; Anugrahadi, Afiat; Yuda, Himmes Fitra
Journal of Geoscience Engineering and Energy VOLUME 5, NOMOR 1, FEBRUARI 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v5i1.17902

Abstract

Water catchment areas in residential areas or in the process of development are very important. The need for water resources that are used to meet the basic needs of personal life as well as development needs that are still growing really need water in the process of infrastructure development Soil type is one of the factors that determines water catchment areas. Soil samples were taken in the study area and then tested in the laboratory to determine the physical properties and classify the types of soil present. The results of the research are that the type of soil in the study area based on USCS is of poor gradation and the type of soil is based on PU No. 02/2013 has a score of 5.
ANALISIS BIBLIOMETRIK PERKEMBANGAN MUTAKHIR DALAM STUDI ANISOTROPI SEISMIK (2017 -2022): BIBLIOMETRIC ANALYSIS OF RECENT DEVELOPMENT IN THE SEISMIC ANISOTROPY STUDIES (2017 -2022) Yuda, Himmes Fitra; Ronoatmojo, Imam Setaiji; Burhannudinnur, Muhammad; Nuryana, Suherman Dwi
Journal of Geoscience Engineering and Energy VOLUME 5, NOMOR 1, FEBRUARI 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v5i1.18206

Abstract

The development of seismic anisotropy needs to be studied systematically hence research could be focused on the latest scientific knowledge, therefore a bibliometric analysis is needed as a measurement of citation strength in the form of mapping "co-occurrence", "co-author" and "co- citation", thus the strength of the research direction could be well understood. The software which is used; VOSviewer version 1.6.18 examined at least 494 papers in the SCOPUS domain during 2017 -2020. It appears from the results that the development of the seismic anisotropy are very rapidly dominated by the needs of the applied science and pure science. The heavily publication countries are United States of America, China and Japan. However, in reality, this density does not necessarily correspond to the number of citations between countries, as well with publications in Japan.
ANALISIS ZONASI GERAKAN TANAH PADA DAERAH CIPINANG, KECAMATAN RUMPIN, KABUPATEN BOGOR: ZONING ANALYSIS OF LAND MOVEMENT IN THE CIPINANG AREA, RUMPIN DISTRICT, BOGOR DISTRICT Afdhal, Muhammad; Yuda, Himmes Fitra
Journal of Geoscience Engineering and Energy VOLUME 5, NOMOR 1, FEBRUARI 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v5i1.19161

Abstract

The research was conducted in the Cipinang area, Rumpin District, Bogor Regency, West Java Province, which has regional conditions with varied morphology consisting of lowlands to highlands. From the existing geological conditions, the Cipinang area is an area with moderate to high susceptibility to landslides. One of the influencing factors is the slope from sloping to steep, and high rainfall. The aim of this research is to determine the ground movement vulnerability zone in the research area using a deterministic method in order to produce a map of the ground movement vulnerability zone using parameters that cause ground movement. with the final results obtained in the research area being divided into 3 zones, namely the low has coverage of 50%, the medium zone 40% and the high zone 10%.
HUBUNGAN KEKUATAN LAPIS TANAH DASAR DENGAN METODE CBR TERHADAP INDEKS PLASTISITAS TANAH DAERAH SITU GADUNG KECAMATAN PAGEDANGAN KABUPATEN TANGERANG: RELATIONSHIP OF SUBGRADE SOILS USING CBR METHOD TOSOIL PLASTICITY INDEX IN SITU GADUNG AREAPAGEDANGAN TANGERANG DISTRICT Novela, Adita; Ronoatmojo, Imam Setiaji; Yuda, Himmes Fitra
Journal of Geoscience Engineering and Energy (JOGEE) VOLUME 5, NOMOR 2, AGUSTUS 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/azgtmr80

Abstract

Tanah yang sering mengalami masalah dalam pembangunan konstruksi geologi rekayasa adalah tanah lempung. Kerusakan jalan yang selama ini sering dijumpai dikarenakan tidak tersedianya data California Bearing Ratio (CBR) serta konsistensi tanah. Tujuan dari penelitian ini adalah, mengetahui nilai CBR dengan alat DCP, meninjai evaluasi kekuatan lapis tanah dasar, menentukan batas konsistensi tanah, dan menginterpretasikan korelasi berdasarkan data CBR dan Plasticity Index (PI). Metode penelitian dilakukan dengan CBR dengan alat DCP, pengambilan sampel tanah, serta pengukuran indeks plastisitas tanah langsung. Pada daerah penelitian ini diketahui memiliki tingkat konsistensi plastisitas tanah yang tinggi, kohesi, dan tanah lempung dengan nilai PL sebesar 28,85% - 48%. Kemudian didapat nilai indeks plastisitas (PI) daerah penelitian yang memiliki nilai 25,15%-36,82%. Maka hasil PI ini mempunyai tingkat indeks plastis yang tinggi, tanah yang kohesif serta tipe tanah atau jenis yang lempung sehingga buruk untuk konstruksi di atasnya karena potensi swelling lempung. Kemudian untuk data CBR daerah penelitian didapat sebesar 5,05-5,55% dengan soil type lempung termasuk zona yang buruk/rendah.  The soil that often experiences problems in the construction of engineering geological construction is clay soil. Road damage that has often been encountered is due to the unavailability of California Bearing Ratio (CBR) data and soil consistency. The purpose of this research is to determine the CBR value using the DCP tool, review the evaluation of the strength of the subgrade layer, determine the soil consistency limit, and interpret correlation based on CBR and Plasticity Index data. The research method was carried out using CBR with a DCP tool, taking soil samples, and directly measuring the soil plasticity index. This research area is known to have a high level of consistent soil plasticity, cohesion, and clay soil with a PL value of 28,85% - 48%. Then the plasticity index (PI) value for the research area was obtained which had a value of 25,15% -36.82%. Therefor this plasticity index has high plasticity, cohesive properties and a clay type of soil so it is bad for construction on it because of the potential for clay swelling. Then the CBR data for the research area was found to be 5.05-5.55% with a clay soil type including poor/low zones.
ANALISIS ZONASI GERAKAN TANAH BERDASARKAN JENIS LITOLOGI DAERAH TEGALREJO KECAMATAN NGLIPAR KABUPATEN GUNUNG KIDUL: ZONING ANALYSIS OF LAND MOVEMENT BASED ON TYPE OF LITHOLOGY IN THE TEGALREJO REGION, NGLIPAR DISTRICT, GUNUNG KIDUL DISTRICT Mandalawangi, Ameda; Yuda, Himmes Fitra
Journal of Geoscience Engineering and Energy (JOGEE) VOLUME 5, NOMOR 2, AGUSTUS 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/y6n0pd26

Abstract

Penelitian ini dilakukan di Daerah Kecamatan Nglipar, Kabupaten Gunung Kidul, Provinsi Daerah Istimewa Yogyakarta. Daerah ini memiliki morfologi perbukitan-perbukitan serta lereng yang cukup curam dan juga terdiri dari batupasir, batupasir tufaan, dan breksi vulkanik. Berdasarkan kondisi geologinya, daerah penelitian cukup rentan terhadap bencana tanah longsor. Tanah longsor juga dapat terjadi akibat lokasi gerakan tanah berada di lereng yang curam dengan kondisi struktur tanah dan lereng yang tidak stabil. Penelitian ini bertujuan untuk menentukan zona kerawanan gerakan tanah pada daerah penelitian dengan menggunakan metode pembobotan dan penilaian dari setiap faktor dan dituangkan ke dalam bentuk peta spasial yang kemudian di tumpang tindih (overlay). Salah satu faktor utama yang mempengaruhi adalah kemiringan lereng dari landai hingga curam, serta jenis litologinya. Hasilnya adalah peta zonasi kerawanan longsor berdasarkan pada parameter penyebab longsor. Hasil akhir menunjukkan 3 zonasi, yaitu zonasi rendah mencakup 15% daerah penelitian, zonasi sedang 65%, dan zonasi tinggi 20%. This research was conducted in Nglipar District, Gunung Kidul Regency, Yogyakarta Special Region Province. This area has a morphology of hills and quite steep slopes and also consists of sandstone, tuff sandstone and volcanic breccia. Based on its geological conditions, the research area is quite vulnerable to landslides. Landslides can also occur due to the location of the ground movement being on a steep slope with unstable soil and slope structure conditions. This research aims to determine the zone of vulnerability to land movement in the research area using a weighting and assessment method for each factor and pouring it into a spatial map which is then overlaid. One of the main influencing factors is the slope of the slope from gentle to steep, as well as the type of lithology. The result is a landslide susceptibility zoning map based on landslide-causing parameters. The final results show 3 zoning, namely low zoning covering 15% of the research area, medium zoning 65%, and high zoning 20%.
ANALISA DATA GEOLISTRIK UNTUK MENGETAHUI POLA SEBARAN AKUIFER DI DESA NAGRAK KECAMATAN GUNUNG PUTRI KABUPATEN BOGOR PROPINSI JAWA BARAT Apriniyadi, Mohammad; Yuda, Himmes Fitra; Kurniadi, Fiqih
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Volume 6, Nomor 1, Januari 2021
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v6i1.8632

Abstract

Sumber daya air selain air sungai dan air hujan yaitu air tanah yang memiliki peran penting dalam menjaga keseimbangan dan ketersediaan air. Adanya struktur perlapisan batuan dan keberadaannya yang berada di bawah permukaan maka diperlukannya suatu metode yang dapat digunakan untuk mengindentifikasi keberadaan akuifer air tanah. konfigurasi schlumberger dapat untuk mendeteksi adanya non-homogenitas lapisan batuan di permukaan, yaitu dengan membandingkan nilai resistivitas semu ketika mengalami perubahan jarak elektroda Dari hasil analisis dan interpretasi nilai-nilai resistivitas, lapisan batuan pada daerah penelitian dapat di golongkan kedalam 3 jenis yaitu endapan alluvium, lempung dan endapan pasir sebagai akuifer. Pada daerah penelitian diperoleh nilai resistivity untuk akuifer sebesar 8 – 30 ohm-m dengan akuifer tertekan berada pada kedalaman 11 - 26 meter dan akuifer tertekan pada kedalaman 36 – 43,1 meter dengan pola sebaran akuifer menyebar dari arah utara ke arah selatan.
ANALISIS KESTABILAN LERENG BERDASARKAN SIFAT FISIK DAN MEKANIK TANAH PADA GRAHA TAMAN SARI, KECAMATAN RUMPIN, KABUPATEN BOGOR: ANALYSIS OF SLOPE STABILITY BASED ON THE PHYSICAL AND MECHANICAL PROPERTIES OF THE SOIL AT GRAHA TAMAN SARI, RUMPIN DISTRICT, BOGOR REGENCY Wiranto, Muhammad Yudha; Yuda, Himmes Fitra; Sugiarto, Eddy
Journal of Geoscience Engineering and Energy VOLUME 6, NOMOR 1, FEBRUARI 2025
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v6i1.22246

Abstract

Stabilitas lereng merupakan faktor krusial dalam pengelolaan wilayah berbukit, terutama di kawasan yang berkembang pesat seperti Graha Taman Sari, Kecamatan Rumpin. Ketidakstabilan lereng di daerah ini dapat meningkatkan risiko longsor yang berpotensi membahayakan lingkungan, infrastruktur, dan masyarakat. Penelitian ini bertujuan untuk menganalisis kestabilan lereng berdasarkan sifat fisik dan mekanik tanah, serta memberikan rekomendasi mitigasi risiko. Metode yang digunakan melibatkan pengambilan sampel tanah di lapangan dan pengujian laboratorium untuk menentukan sifat fisik tanah (kadar air, berat volume, dan indeks plastisitas) dan sifat mekanik tanah (kohesi dan sudut geser dalam). Selain itu, tanah diklasifikasikan berdasarkan sistem AASHTO. Stabilitas lereng dianalisis menggunakan Limit Equilibrium Method (LEM) dengan pendekatan Morgenstern–Price untuk menghitung faktor keamanan (safety factor) berbagai kondisi lereng. Geologi Graha Taman Sari terdiri atas dua satuan utama: batupasir yang berselingan dengan batulempung serta endapan aluvial. Hasil menunjukkan bahwa satuan batulempung, dengan kohesi rendah dan sudut geser kecil, lebih rentan terhadap longsor, terutama pada kondisi jenuh air akibat curah hujan tinggi. Salah satu lereng curam dengan dominasi material lempung menunjukkan faktor keamanan kurang dari 1,25, mengindikasikan ketidakstabilan dan perlunya perkuatan. Rekomendasi mitigasi meliputi terasering, pengelolaan drainase untuk mengurangi infiltrasi air, serta pembatasan aktivitas manusia di sekitar lereng rawan. Penelitian ini menegaskan bahwa metode LEM dengan pendekatan Morgenstern–Price efektif untuk mengevaluasi stabilitas lereng dan dapat menjadi acuan dalam mitigasi bencana serta perencanaan wilayah di Graha Taman Sari. Slope stability is a critical aspect of managing hilly areas, especially in rapidly developing regions such as Graha Taman Sari, Rumpin District. Slope instability in this area increases the risk of landslides, posing threats to the environment, infrastructure, and local communities. This study aims to analyze slope stability based on the physical and mechanical properties of the soil and provide risk mitigation recommendations. The methodology involved field sampling and laboratory tests to determine soil physical properties (water content, bulk density, and plasticity index) and mechanical properties (cohesion and internal friction angle). The soil was also classified according to the AASHTO system. Slope stability was analyzed using the Limit Equilibrium Method (LEM) with the Morgenstern–Price approach to calculate the safety factor under various slope conditions. The geology of Graha Taman Sari consists of two main units: sandstone interbedded with claystone and alluvial deposits. The results indicate that claystone units, with low cohesion and a small internal friction angle, are more prone to landslides, especially when saturated due to high rainfall. One steep slope dominated by clay material was found to have a safety factor of less than 1.25, indicating instability and the need for reinforcement. Mitigation recommendations include terracing, improved drainage management to reduce water infiltration, and controlling human activities in landslide-prone areas. This study highlights the effectiveness of the LEM approach using the Morgenstern–Price method for slope stability evaluation and provides a valuable reference for disaster mitigation and land-use planning in Graha Taman Sari.
A REVIEW OF GEOPHYSICS STUDY OF GRAPHITE OCCURRENCES IN BALAI SEBUT COMPLEX, SANGGAU, WEST KALIMANTAN Maulana, Rizki Fajar; Sulyana, Deska; Meirawaty, Mira; Yuda, Himmes Fitra; Hendrasto, Fajar; Wijaya, Budi; Apriniyadi, Mohammad
Journal of Geoscience Engineering and Energy VOLUME 6, NOMOR 1, FEBRUARI 2025
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v6i1.22455

Abstract

Graphite is a non-metallic polymorph mineral formed by carbon. Graphite has become indispensable in the worldwide industry due to its widespread applications, such as industrial uses, energy transition, and even electricity. It is a critical anode element for lithium-ion batteries. Graphite has unique physical characteristics. It has a very low specific gravity and is an extraordinarily soft but highly conductive material. It is exceptionally heat-resistant, making it applicable in metallurgy and manufacturing. Due to all characteristics, graphite occurrences in Indonesia are slightly unknown. In contrast, there is a possibility, according to some Palaeozoic metamorphic host graphite in several parts of Indonesia. This study will enlighten early-step exploration of graphite potency in Balai Sebut, Sanggau Regency, and West Kalimantan. We combined airborne and ground geophysics using Active Directory Magnetotelluric (ADMT) tools to estimate graphite distribution on the surface and subsurface. We also did laboratory analysis to validate graphite content using petrography analysis, X-ray diffraction (XRD), and carbon analyzer (LECO) of some representative graphite-bearing rock from fieldwork. Graphite in the research area is exposed to the surface, like in Empiyang, whereas potential graphite in the Terati area lies 0-6 m below the subsurface. Petrographic analysis shows that graphite occurs as flake graphite that is characterized by widespread distribution with low thickness. Both LECO and XRD confirmed the occurrence of these graphite-bearing rocks, with the total amount of graphite ranging from 0.91‒1.58%. This research is expected to provide suggestions in the early stage of graphite exploration based on thematic cases as graphite occurrences in the Balai Sebut area.
IMPLIKASI KADAR AIRTANAH TERHADAP DAYADUKUNG TANAH DI WILAYAH GAMBIR DAN SEKITARNYA Yuda, Himmes Fitra; Zakaria, Zufialdi; Sukiyah, Emi
Bulletin of Scientific Contribution Vol 15, No 1 (2017): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (732.017 KB)

Abstract

ABSTRACTThe research area is in Gambir and surround it, Central Jakarta and West Jakarta municipality. The study to learn the characteristics of the soil in the research area. The relationship of water content and soil bearing capacity is known from secondary data of soil investigation at four locations sampled. Based on observations of four soil samples, the highest water content is in sample HF-3 at 68.28%, and the lowest water content is in sample HF-4 by 48%. Depend on the soil bearing capacity value, sample HF-3 has the lowest value, which is 2.64 T / M2. The highest soil bearing capacity value is found in the sample HF-4, which is 25.49 T / M2. Regression correlation test results showed that in dry conditions / low water content, the value of soil bearing capacity will be high, meanwhile in wet conditions, water levels will rise, so the value of the soil bearing capacity will be smaller than in dry conditions. Keywords : Soil bearing capacity, water content ABSTRAKLokasi penelitian berada pada wilayah Gambir dan sekitarnya, kotamadya Jakarta Pusat dan Jakarta Barat. Studi ini untuk mempelajari karakteristik tanah pada daerah penelitian. Hubungan kadar air dan daya dukung tanah diketahui dari data penyelidikan tanah di 4 lokasi sampel. Berdasarkan pengamatan dari 4 sampel tanah, nilai kadar air tertinggi adalah pada sampel HF-3 sebesar 68,28%,  nilai kadar air terendah adalah pada sampel HF-4 sebesar 48%. Jika dilihat dari nilai dayadukung tanah, sampel HF-3 memiliki nilai yang paling rendah, yaitu sebesar 2,64 T/M2. Nilai dayadukung tanah yang tertinggi ada pada sampel HF-4 sebesar 25,49 T/M2. Dari hasil uji regresi korelasi menunjukan bahwa pada kondisi kering/kadar air rendah, nilai dayadukung tanah akan besar, sementara pada kondisi basah, kadar air akan meningkat, sehingga nilai dayadukung tanah akan menjadi lebih kecil dibandingkan dengan kondisi kering. Kata Kunci : Dayadukung tanah, kadar air
PELATIHAN PEMBUATAN SABUN BATANG DARI LIMBAH MINYAK JELANTAH DENGAN TEKNIK PENJERNIHAN MENGGUNAKAN MINERAL BENTONIT BAGI SISWA SMAN 23 BANDUNG Meirawati, Mira; Rendy; Yuda, Himmes Fitra; Adhitama, Ramadhan; Rachmawan, Sigit
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 6 No 2 (2024): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jamin.v6i2.17635

Abstract

Earth science remains relatively unpopular among the general public as a fundamental discipline. School learning relies heavily on rote memorization, leaving little room for exploration and real-life application of earth science concepts. However, geology is crucial in human life, encompassing multidimensional knowledge relevant to sustainable living and utilizing natural resources. To promote the importance of earth science in daily life, a Community Service (PkM) activity was conducted involving students from SMAN 23 Bandung, located in the densely populated area of Antapani, Bandung. The PkM activity focuses on the role of bentonite clay minerals as a clarifier for used cooking oil and as an adsorbent material in facial masks. Training on using bentonite minerals was provided to enable participants to apply them in their daily activities. The evaluation of questionnaires and interactive discussions showed that the PkM successfully increased awareness and provided education about the benefits of bentonite clay in purifying used cooking oil and its application as a soap-making material. Questionnaires given to 20 participants from SMAN 23 Bandung highlighted the importance of socializing environmentally friendly and health-safe earth science concepts. Adopting an integrated approach using locally available bentonite materials to purify bulk cooking oil is recommended, which can lead to more economically valuable products like soap bars. 
Co-Authors Adhitama, Ramadhan Afdhal, Muhammad Afiat Anugrahadi, Afiat Ahmad, Riduan Amri, Muhammad Adimas Anggrianti, Adinda Ardi, Achmad Adyatma Asseggaf, Abdurrachman Budi Wijaya Cahyaningratri Prima Riyandhani Emi Sukiyah Fajar Hendrasto Havidh Pramadika Hidartan, Hidartan Imam Setiaji Ronoatmojo Kurniadi, Fiqih Mandalawangi, Ameda Maulana, Rizki Fajar Meirawati, Mira Meirawaty, Mira Mohammad Apriniyadi Muhammad Burhannudinnur Novela, Adita Prasetyo, Yosafat Anugrah Rachmawan, Sigit Rahmawati, Puspita Dinda Rendy Rizqi, Fhirdha Ronoatmojo, Imam Setaiji Sugiarto, Eddy Suherman Dwi Nuryana Sulyana, Deska Wiranto, Muhammad Yudha Zufialdi Zakaria, Zufialdi