Article Per Year (5 Year)
p-Index From 2020 - 2025
1.152
P-Index
This Author published in this journals
All Journal Bulletin of Scientific Contribution : Geology Journal of Degraded and Mining Lands Management Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Journal of Geoscience, Engineering, Environment, and Technology Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Buletin Sumber Daya Geologi JURNAL TEKNIK HIDRAULIK Jurnal Geominerba Journal of Tourism Education
Hendarmawan Hendarmawan, Hendarmawan
Universitas Padjadjaran, Bandung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Physics Social Sciences Other

Published : 17 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 17 Documents
Search

 1   2 
DISTRIBUSI KUAT GESER BATUAN PADA FORMASI MUARAENIM YANG MENGANDUNG BATUBARA DI KECAMATAN MERAPI BARAT, KABUPATEN LAHAT, PROVINSI SUMATERA SELATAN Hamid, Nur; Hendarmawan, Hendarmawan; Muslim, Dicky; Ruchjana, Budi Nurani
Buletin Sumber Daya Geologi Vol 11, No 3 (2016): Buletin Sumber Daya Geologi
Publisher : Buletin Sumber Daya Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (16048.041 KB)

Abstract

Masalah kemantapan lereng sering ditemukan dalam operasi penambangan terutama pada dinding penggalian tambangnya. Kegiatan produksi akan terganggu apabila lereng-lereng yang terbentuk sebagai akibat dari proses penambangan  tidak stabil. Suatu tambang terbuka belum tentu memiliki besar sudut kemiringan lereng yang sama, hal ini diantaranya akibat dari kuat geser batuan (τ) yang merupakan indeks kualitas batuan, semakin kecil kuat geser batuan maka semakin lemah kekuatan batuan dalam menyangga beban dan akan menjadi bidang lemah yang mudah longsor. Dalam penelitian ini digunakan metode pemetaan geologi dan analisis gama ray dari 43 lubang bor. Metode Kriging digunakan untuk mengetahui distribusi kuat geser batuan di daerah penelitian. Hasil analisis metode Kriging memperlihatkan distribusi kuat geser batuan yang mempunyai nilai rendah yaitu 200 ton/m2 mengarah ke selatan semakin menyempit dan secara vertikal distribusinya semakin dalam semakin berkurang.
Hubungan Kelompok Maseral Liptinit dan Vitrinit dengan Tipe Kerogen Batuan Sumber Hidrokarbon pada Serpih Formasi Kelesa Bagian Atas, Kuburan Panjang, Riau Zajuli, Moh. Heri Hermiyanto; Panggabean, Hermes; Hendarmawan, Hendarmawan; Syafri, Ildrem
Jurnal Geologi dan Sumberdaya Mineral Vol 18, No 1 (2017): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (521.007 KB)

Abstract

This study focuses on correlation of liptinite and vitrinite maceral to kerogen type of shale from Kelesa Formation in Kuburan Panjang areas, Sumai sub-basin, Central Sumatra Basin. The composition of the organic material consists of vitrinite maceral ranged from 0.2 to 5%, liptinite from 0.6 to 4.7%, the type of minerals in the form of pyrite from 0.2 to 16%, and 0.2 -24.2% of carbonate, as well as clay minerals are the most dominant component ranged between 71.6 -98%. TOC values of the shale range from 1.18% to 7.17%, which indicate ability of the shale as a good source rock. Kerogen type analysis of theshale in the research area tends to indicate I, II and III kerogen types. There is an influence of the liptinite and vitrinite maceral groups abundance to the type of kerogen, where liptinit maceral group tends to produce type I and II kerogen. Key word : Kelesa Formation, Eocene-Oligocene, Central Sumatera Basin, Vitrinite, Liptinite
Dinamika Kehadiran Material Organik Pada Lapisan Serpih Formasi Kelesa di Daerah Kuburan Panjang, Cekungan Sumatera Tengah, Riau Zajuli, Heri Hermiyanto; Panggabean, Hermes; Hendarmawan, Hendarmawan; Syafri, Ildrem
Jurnal Geologi dan Sumberdaya Mineral Vol 16, No 4 (2015): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (10250.549 KB)

Abstract

Penelitian ini difokuskan di daerah Kuburan Panjang sub-Cekungan Sumai, Cekungan Sumatera Tengah. Subjek penelitian ini adalah batuan serpih dari Formasi Kelesa yang berumur Eosen-Oligosen. Runtutan batuan dari bawah ke atas menunjukkan perulangan antara lapisan-lapisan batuan serpih, batupasir dan batulumpur yang dibatasi oleh konglomerat pada bagian atas dan bawahnya. Komposisi material organik terdiri dari maseral vitrinit berkisar antara 0,20 – 5,0 %, eksinit  0,60 – 4,70%, pirit 0,20 – 16,00%, karbonat 0,20 -24,2 % dan mineral lempung merupakan komponen yang paling dominan yaitu berkisar antara 71,60 -98,00%. Berdasarkan hasil analisis TOC, kekayaan material organik serpih Formasi Kelesa mempunyai nilai TOC dari 1,18% sampai 7,17% yang menunjukkan kemampuan serpih sebagai batuan induk termasuk kategori sangat baik. Kehadiran material organik di daerah penelitian menunjukkan adanya suatu siklus pengayaan material organik dari bawah ke atas.
"Brittleness Index" Lapisan Serpih Formasi Kelesa Bagian Atas di Kuburan Panjang, Cekungan Sumatera Tengah , Riau Zajuli, M. Heri Hermiyanto; Hendarmawan, Hendarmawan; Panggabean, Hermes
Jurnal Geologi dan Sumberdaya Mineral Vol 17, No 1 (2016): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini difokuskan pada nilai Brittleness Index (BI) serpih di daerah Kuburan Panjang sub-Cekungan Sumai, Cekungan Sumatera Tengah. Subjek penelitian ini adalah kehadiran mineral-mineral getas pada batuan serpih dari Formasi Kelesa bagian atas yang berumur Eosen-Oligosen. Serpih mengandung kuarsa dan karbonat sebagai indikator mineral getas yang sangat dominan. Berdasar nilai kandungan material organik pada serpih Formasi Kelesa dari 1,18% sampai 7,17% yang menunjukkan kemampuan serpih sebagai batuan induk termasuk kategori sangat baik. Serpih Formasi Kelesa bagian atas mempunyai BI berkisar antara 35,72 – 63,19 % yang tergolong ke dalam kategori sedang sampai baik (sedikit lunak/less ductile - rapuh/brittle). Kandungan mineral getas yaitu kuarsa dan karbonat ternyata sangat mempengaruhi nilai Brittleness Index (BI) di lokasi penelitian. Sementara itu mineral lempung (iliit, kaolinit, dickite, nacrite) kurang memberikan dampak terhadap nilai BI.  Kata kunci : Formasi Kelesa, Eosen-Oligosen, Cekungan Sumatera Tengah,          Brittleness Index (BI) 
Ketersediaan Air Embung untuk Memenuhi Kebutuhan Air di Kawasan Kampus Jatinangor Universitas Padjadjaran Bustomi, Zhafran Muhammad Asyam; Hendarmawan, Hendarmawan; Zakaria, Zufialdi
Dinamika Rekayasa Vol 17, No 2 (2021): Jurnal Ilmiah Dinamika Rekayasa - Agustus 2021
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2021.17.2.391

Abstract

Pengaruh dari pemanasan global salah satunya adalah perubahan pola cuaca. Perubahan tersebut menyebabkan debit sungai pada musim penghujan sangat tinggi sedangkan musim kemarau sangat rendah. Hal tersebut berdampak terhadap kebutuhan air baku dan konsumtif di sekitar kampus tidak terpenuhi sepanjang tahun. Penelitian ini bertujuan untuk mensimulasikan ketersediaan air dalam memenuhi kebutuhan air di sekitar kampus Jatinangor Universitas Padjadjaran. Metode yang digunakan adalah model debit F. J Mock dengan 80% nilai probabilitas debit andalan serta pola perhitungan 15 hari. Hasil menunjukan debit yang masuk ke dalam tampungan tinggi dengan debit terbesar pada fase kedua bulan Februari sebesar 54,68 liter/detik sehingga air yang dikeluarkan di outlet cukup tinggi. Namun sangat rendah ketika masuk pada bulan Juni. Tetapi dengan jumlah cadangan air yang ada dalam tampungan tetap bisa memenuhi kebutuhan air walaupun pada fase kedua bulan september selisih antara volume air didalam tampungan dengan air yang dipakai sangat tipis yaitu selisih 4.500 m3. Dengan demikian, dengan adanya embung ini air yang ditampung pada saat musim hujan bisa memenuhi kebutuhan air di sekitar kampus pada saat musim kemarau dan efektif pula dalam mengurangi resiko banjir di bagian hilir
VOLUMETRIK REMBESAN DALAM PERENCANAAN PEMBANGUNAN TUBUH BENDUNGAN KOLAM RETENSI X (STUDI KASUS: DAS SANGGAI, IKN) Putri, Fauziah Listiana; Listiawan, Yudhi; Hendarmawan, Hendarmawan
Bulletin of Scientific Contribution Vol 22, No 2 (2024): Bulletin of Scientific Contribution:GEOLOGY
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bsc.v22i2.56008

Abstract

Ibu Kota Negara Indonesia yang baru akan berada pada sejumlah Kecamatan di Kabupaten Penajam Paser Utara dan Kutai Kartanegara. Penelitian ini akan fokus pada perencanaan pembangunan bendungan di Kolam Retensi X yang ada di DAS Sanggai, IKN. Dalam perencanaan pembangunannya memerlukan analisis debit rembesan yang dapat terjadi ketika bendungan sudah dioperasikan. Debit rembesan yang berlebihan akan mempengaruhi stabilitas dari bendungan dan dapat menyebabkan gejala piping. Analisis akan dilakukan pada kondisi Muka Air Rendah, Muka Air Normal, dan Muka Air Banjir. Data yang diperlukan yaitu data teknis Kolam Retensi X, gambar potongan melintang bendungan, dan hasil uji laboratorium. Debit rembesan ini dianalisis menggunakan software Geostudio SEEP/W 2012 dan metode flow net. Berdasarkan hasil analisis menggunakan Geostudio SEEP/W 2012, debit rembesan pada tubuh bendungan Kolam Retensi X pada kondisi Muka Air Rendah sebesar 1.6 × 10−9 m3 /det, Muka Air Normal sebesar 2.75 × 10−9 m3 /det, dan Muka Air Banjir sebesar 4.41 × 10−9
Impact of COVID-19 on the Global Tourism Economy Syaifudin, Arief; Hendarmawan, Hendarmawan; Novianti, Evi
Journal of Tourism Education Vol 2, No 1 (2022)
Publisher : Program Studi Pendidikan Pariwisata, Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (200.523 KB) | DOI: 10.17509/jote.v2i1.41629

Abstract

COVID-19 has paralyzed the world tourism sector. Travel restrictions (land, air, and sea), quarantine policies by the competent authorities, and physical restrictions are the main factors for cessation of tourism activities. The tourism sector that relies on individual mobility is supported by transportation modes so that when this is limited, it will have an impact on decreasing tourist visits, occupancy rates and the cancellation of a number of festivals and events that are routinely held until in the end this condition has an impact on tourism sector income. This study aims to obtain an overview of the impact of COVID-19 on the income of the tourism sector in a number of countries. Through literature studies, it is hoped that sufficient information can be obtained so that it can be used as a consideration for tourism managers in developing the concept of sustainable tourism in the future. 
PENGARUH BIDANG DISKONTINUITAS TERHADAP KESTABILAN LERENG TAMBANG STUDI KASUS : LERENG HIGHWALL PIT’X’ PT. BERAU COAL Al Kautsar, Muhammad Ilham; Khoirullah, Nur; Hendarmawan, Hendarmawan; Umboro, Sindhu
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 8 No 2 (2023): Jurnal Geominerba - 2023
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58522/ppsdm22.v8i2.135

Abstract

Berau Coal is a company that currently manages open-pit coal mines, requiring geotechnical analysis. The purpose of this research is to determine the stability of slopes with and without discontinuities to understand the influence of discontinuity planes on the slopes. The method used involves classifying rock strength based on the Geological Strength Index (Marinos, 2007). In the research area, the GSI classification for sandstone and claystone ranges from <42 to >42, including classes III, IV, V, and X. Kinematic analysis, limit equilibrium analysis, and stereogram analysis are also conducted to determine the factor of safety.Based on kinematic analysis to determine the type of landslide (Wyllie & Mah, 2004), there can be a wedge failure in the highwall area. Limit equilibrium analysis is performed under two conditions: with the presence of discontinuity planes, yielding a factor of safety (FS) value of 1.636, and without the presence of discontinuity planes, yielding an FS value of 1.365. Meanwhile, the stereogram analysis yields an FS value of 3.4. In this case study, the FS value is higher when there are discontinuity planes compared to the condition without discontinuity planes. This is because the existing discontinuity planes intersect the critical slope, causing a change in the sliding plane direction towards the discontinuity plane.
Geo-Environment Aspects Assessment Applied In Land Stability Determination Of A Disaster-Prone Area: A Case Study Around The Lembang Active Fault Zone, On The Western Part Of Bandung Basin, Indonesia Iskandarsyah, Teuku Yan Waliana Muda; Brilian, Ciria Humanis; Trisnadiansyah, Mochamad Ridfan; Listiawan, Yudhi; Barkah, M. Nursiyam; Sulaksana, Nana; Hendarmawan, Hendarmawan
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 3 (2024): JGEET Vol 09 No 03 : September (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.3.18062

Abstract

Rainfall, landforms, lithology or soil characteristics, and geological structures are geo-environment aspects that might be used to assess stability of the land in a disaster-prone area, e.g. in a case of study around the Lembang active fault zone of the western part of Bandung Basin, Indonesia. In this study, such geo-environment aspects were weighted and scored constantly in five class of value and importance, due to its influence on the land stability. After this scoring method applied, firstly, a land capability of the research area in relation to disaster potential will be recognized and used to analyze its land stability. According to such analyses, the study area can be divided into two zones of land stability, i.e. (i) moderate area which dominates the research area, and (ii) non-stable or unstable area near Lembang active fault zone. The dominant moderate and unstable area show that the fault zone has still widely affected the surroundings landscape and its physical characteristics. In fact, the current evaluation of existing landuse show that the development has been carried out intensively on these areas. It indicates that the development of the area is contituted as a high risk activity. Therefore, in this case, a good spatial planning or an environmental good governance must be applied appropriately in such disaster-prone area.
Evaluation of nitrate in shallow groundwater at Pasirkoja of Bandung City, Indonesia, using the pollution index and the nitrate pollution index methods Naily, Wilda; Sunardi, Sunardi; Asdak, Chay; Hendarmawan, Hendarmawan
Journal of Degraded and Mining Lands Management Vol. 11 No. 4 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.1114.6251

Abstract

Pasirkoja is an old residential area in Bandung City currently densely populated. Some people in Pasirkoja use shallow groundwater for washing and bathing, and some for cooking. Pollutants very easily pollute shallow groundwater, and nitrate is one of the pollutants found in shallow groundwater in residential areas. The water quality status was determined using the pollution index (PI) method based on a Decree of the Minister of Environment Number 115 of 2003 and the nitrate pollution index (NPI) to ascertain the shallow groundwater quality in Pasirkoja of Bandung City, Indonesia. The variables used in the PI method were pH, turbidity, total dissolved solids (TDS), nitrate, and nitrite, while the NPI method used the nitrate parameter. Shallow groundwater samples were taken during the rainy season and dry season. Based on the PI method, the results showed that the quality status of shallow groundwater at the research location is mostly lightly polluted in the rainy and dry seasons. Meanwhile, based on the NPI method, most are clean (not polluted). Differences in the quality status of shallow groundwater depend on the environmental conditions around which shallow groundwater samples were taken. The research results also showed that, based on the PI method, nitrate is not the main parameter that determines pollution at the research location.
Co-Authors Adjat Sudrajat Al Kautsar, Muhammad Ilham Benny Joy Bombom Rachmat Suganda, Bombom Rachmat Brilian, Ciria Humanis Budi Nurani Ruchjana Bustomi, Zhafran Muhammad Asyam Chay Asdak Dicky Muslim Edi Tri Haryanto, Edi Tri Emi Sukiyah Evi Novianti Heri Hermiyanto Zajuli, Heri Hermiyanto Hermes Panggabean Ildrem Syafri Iskandarsyah, Teuku Yan Waliana Muda Ismawan Ismawan, Ismawan Johanes Hutabarat Khoirullah, Nur M. Heri Hermiyanto Zajuli M. Nursiyam Barkah, M. Nursiyam Moh. Heri Hermiyanto Zajuli Nana Sulaksana NUR HAMID Petrus Syariman, Petrus Putri, Fauziah Listiana Sunardi Sunardi Syaifudin, Arief Tanuwijaya, Zamzam A.J. Trisnadiansyah, Mochamad Ridfan Umboro, Sindhu Vijaya Isnaniawardhani W. Kuntjoro, W. Wilda Naily Yudhi Listiawan Zamzam A. J. Tanuwijaya, Zamzam A. J. Zufialdi Zakaria, Zufialdi