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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL REKA RACANA Jurnal Teknik Sipil Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Jurnal Rekayasa Hijau Jurnal Komposit : Jurnal Ilmu-Ilmu Teknik Sipil Indonesian Journal of Construction Engineering and Sustainable Development Jurnal Jalan Jembatan Asian Journal of Social and Humanities Journal of Green Science and Technology
Hamdhan, Indra Noer
Institut Teknologi Nasional
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Transportation

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Pemodelan Kolom Kapur Berpola Triangular dengan Plaxis 3D Sebagai Upaya Perbaikan Tanah Lempung Lunak Indra Noer Hamdhan; Fitri Virliani Anugrah
RekaRacana: Jurnal Teknil Sipil Vol 8, No 2: Juli 2022
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaracana.v8i2.82

Abstract

ABSTRAKSemakin berkurangnya lahan dengan tanah berdaya dukung tinggi di tengah tingginya tingkat pembangunan berakibat pada semakin seringnya perbaikan tanah bermasalah diterapkan. Salahsatu tanah bermasalah yang sering ditemui di Indonesia adalah tanah lempung lunak. Perbaikan tanah lempung lunak dapat dilakukan dengan penggunaan kolom Deep Mixing Soil bermaterial kapur. Penelitian ini bertujuan untuk mengetahui pengaruh jarak antar kolom dan kedalaman kolom kapur berpola triangular terhadap perubahan perilaku tanah lempung lunak dengan menggunakan PLAXIS 3D. Kolom yang dimodelkan berdiameter 1m dengan variasi jarak 1,5D; 2D; 2,5D dan variasi kedalaman 4,25m; 8,5m; 10m; 12m. Hasil penelitian menunjukkan bahwa semakin kecil jarak antar kolom kapur dan semakin dalam kolom kapur yang diaplikasikan maka penurunan yang terjadi semakin kecil serta nilai faktor keamanan akan semakin besar.Kata kunci: deep mixing soil, kolom kapur, tanah lempung lunak, PLAXIS 3D, penurunan tanah ABSTRACTThe decrease of high bearing capacity soil in the midst of high levels of development has resulted in more frequent application of problematic soil improvements. One of the problem soils that is often encountered in Indonesia is soft clay. Soft clay soil improvement can be done by using a Deep Mixing Soil column made of lime. This study aims to determine the effect of the distance between columns and the depth of the lime column with triangular pattern on changes in the behavior of soft clay using PLAXIS 3D. The modeled column is 1m in diameter with 1.5D; 2D; 2.5D distance variation and 4.25m; 8.5m; 10m; 12m depth variation. The results showed that the smaller distance between the lime columns and the deeper lime column was applied, the smaller settlement would be and the greater value of the safety factor.Keywords: deep mixing soil, lime column, soft clay, PLAXIS 3D, soil settlement
Studi Optimasi Pembuatan Nanoaspal Karet dari Asbuton Riny Yolandha Parapat; Ayu Risnawati; Marsya Imara Sabrilia; Indra Noer Hamdhan; Imam Aschuri
RekaRacana: Jurnal Teknil Sipil Vol 8, No 3: November 2022
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaracana.v8i3.197

Abstract

ABSTRAKJumlah mobil yang terus meningkat memberi dampak tidak hanya pada kondisi jalan, tetapi juga pada penumpukan limbah ban. Penyebab kerusakan jalan menuntut penggunaan material untuk perkerasan jalan dengan kualitas yang lebih tinggi. Pemanfaatan Crumb Rubber (CR) dari ban mobil menjadi bahan aditif campuran aspal adalah solusi terbaik untuk kedua masalah tersebut. Para peneliti telah melaporkan bahwa penambahan CR dan nanopartikel dapat meningkatkan kualitas aspal jalan secara signifikan. Tujuan dari penelitian ini adalah mendapatkan komposisi optimum nanoaspal karet untuk meningkatkan mutu aspal Asbuton. Komposisi campuran aspal hasil ekstraksi, CR dan nanopartikel kemudian dioptimasi untuk mendapatkan kualitas nanoaspal karet yang memenuhi standar dengan menggunakan metode Central Composite dan Response Surface Method. Response yang diukur adalah Penetrasi, Daktilitas, Kelarutan dan Densitas dari nanoaspal karet. Hasil optimasi menunjukan bahwa pada komposisi 3,682%NP; 4,694%CR; dan pada ukuran CR sebesar 88,5 nm; keempat parameter uji di atas terpenuhi.Kata kunci: asbuton, crumb rubber, nanoaspal karet, nanopartikel ABSTRACT The increasing number of cars has an impact not only on road conditions, but also on the accumulation of waste tires. The cause of road damage demands the use of materials for road pavement with higher quality. Utilization of Crumb Rubber (CR) from car tires as an additive to asphalt mixture is the best solution for both problems. Researchers have reported that the addition of CR and nanoparticles can significantly improve the quality of road asphalt. The purpose of this research is to obtain the optimum composition of rubber nano-asphalt to improve the quality of Asbuton asphalt. The composition of asphalt, CR and nanoparticles is then optimized using the Central Composite and Response Surface Method. Responses measured were penetration, ductility, solubility and density of rubber nanoasphalt. The optimization results show that at a composition of 3.682%NP, 4.694%CR, and CR size of 88.5 nm, the test parameters above are fulfilled.Keywords: asbuton, crumb rumbber, rubber nanoasphalt, nanoparticles
IDENTIFIKASI RISIKO PADA PROYEK PENANGANAN LONGSORAN LERENG JALAN DI INDONESIA DENGAN METODE HOR (HOUSE OF RISK) asep hilman rosadi; Indra Noer Hamdhan
Jurnal Jalan-Jembatan Vol 39 No 2 (2022)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Abstract

The implementation of the road slope landslide handling project, of course, there are many potential risks that occur. So that a risk management analysis is needed to anticipate the risks that occur. The purpose of this study was to identify risk events, risk factors and preventive measures in road slope landslide management projects in Indonesia. This research methodology uses questionnaires to experts in the field of road slope landslide handling projects in Indonesia with the House Of Risk (HOR) method and Delphi validation. There are 44 risk event variables, 36 risk factors and 24 preventive measures in this study. At the HOR phase 1 stage there are 22 priority risk factors from the original 36 risk factor variables. In HOR phase 2 and with the Pareto system, there are 13 priority precautions that need to be taken to prevent failures in handling road slope landslides. Through this research, preventive measures in anticipating risk factors in construction projects for handling road slope landslides in Indonesia are to tighten the qualifications of service providers during auctions, confirm contracted personnel have expertise and have internal supervision from the owner of service providers and supervisory consultants. Keywords:risk identification, risk factors, risk events, risk management, landslide.
Pemodelan 3D pada Stabilitas Lereng Menggunakan Perkuatan Bronjong dengan Plaxis 3D Berbasis Elemen Hingga Hamdhan, Indra Noer; Eliza, Emilia
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 29, Nomor 1, JULI 2023
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v29i1.44893

Abstract

The slope is a surface that lies at an angle to the horizontal. If the driving force at the slope is bigger than the resisting force, it can inflict a landslide. Gabions are one of the slope reinforcements structures that can be used to prevent landslides. Gabion has woven wire and has tensile strength.  This study aims to examine the effect of modeling of tensile strength on gabion wire using Plaxis 3D, as well as the effectiveness of variations in height, variations in tensile strength, variations in gabion reinforcement patterns on slopes. The soil is modeled as homogeneous loamy sand with a geometry of 10m high and 1:1 slope. Modeling the tensile strength of gabions can increase the value of the safety factor by 9.5% compared to without modeling the tensile strength of gabions. The optimal gabion height that increasing the safety factor is 6m. The value of the tensile strength of gabion wire does not have a significant effect on the safety factor of the slope. The placement of gabions with a zigzag and lined pattern and a gentle slope will more increase the safety factor.
Pemodelan Numerikal Kestabilan Lereng Batulempung (Studi Kasus Ruas Jalan Sumedang-Cirebon Km 68+750) Wahab, Dimas Athhariyadi; Tohari, Adrin; Hamdhan, Indra Noer
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 29, Nomor 2, DESEMBER 2023
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v29i2.53704

Abstract

The Sumedang-Cirebon Km 68+750 road section is a national road and an important transportation infrastructure in West Java. Albeit the road section's slope has previously been strengthened with bored pile reinforcement, the slope continues to move. This study's objective is to examine slope stability by considering earthquake loads and to suggest improvements for efficient slope reinforcement. Slope stability analysis utilizing PLAXIS 2D program based on the finite element method and DMT-KD Method which is the result of field testing using the Flat Dilatometer Test (DMT)). PLAXIS modeling results show that the slope failure line is deeper below the bored pile reinforcement. The results of the analysis using DMT-KD method showed similar slope failure, the conclusion is DMT-KD method can be the initial basis for slope stability analysis on mudstone. The PLAXIS modeling results obtained a static safety factor of 1.113 and a safety factor due to an earthquake of <1, both of which fall short of the requirements of minimum of 1.5 for static loads and 1.4 for earthquake loads. The body of the road develops cracked as a result of this issue. Additional reinforcement modeling is carried out using bored piles and gabions. As shown in the results of additional reinforcement modeling, bored pile reinforcement that reaches below the slope failure line is more successful than gabion reinforcement at the slope's base in raising the safety factor.
Pemodelan Numerikal Kestabilan Lereng Galian Abutment Jembatan pada Ruas Jalan Tol Bogor – Ciawi – Sukabumi Kurnia, Prana; Hamdhan, Indra Noer; Tohari, Adrin
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 29, Nomor 2, DESEMBER 2023
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v29i2.51421

Abstract

Jembatan Cikereteg merupakan salah satu infrastruktur pada proyek pembangunan Jalan Tol Ruas Bogor-Ciawi-Sukabumi. Berdasarkan data pengeboran, diketahui lereng di bawah jembatan memiliki tanah dengan nilai N-SPT kurang dari 10 dengan muka air tanah yang tinggi. Sehingga, menimbulkan pertanyaan mengenai kestabilan lereng tersebut. Penelitian ini bertujuan untuk menganalisis stabilitas lereng dengan mempertimbangkan beban gempa serta memberikan rekomendasi perkuatan lereng yang efektif untuk meningkatkan stabilitas lereng d ibawah jembatan tersebut. Analisis stabilitas lereng dilakukan menggunakan metode elemen hingga dengan program PLAXIS 2D. Hasil pemodelan menunjukkan bahwa lereng tidak stabil, karena tidak memenuhi kriteria lereng rencana, yaitu 1,8 untuk kondisi statis dan 1,5 untuk situasi gempa. Nilai faktor keamanan masing-masing adalah 1,396 untuk kondisi statis dan 1,068 saat diberikan beban gempa. Hasil dari pemodelan perkuatan rencana menunjukan bahwa, penggunaan subdrain yang dikombinasikan dengan bored pile maupun ground anchor dapat memenuhi kriteria lereng rencana jembatan tersebut.
ANALISIS STABILITAS LERENG PADA TIMBUNAN TPA DENGAN PENDEKATAN ELEMEN HINGGA Sari, Namirah Nurgia; Hamdhan, Indra Noer
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil  Vol. 3 No. 2 (2019)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v3i2.3273

Abstract

Analisis stabilitas lereng pada model timbunan sampah (landfill) dengan metode elemen hingga digunakan untuk memperoleh nilai faktor keamanan, serta pengaruh terhadap nilai suction dan pengaruh terhadap aliran air pada kondisi tanah jenuh sebagian. Model timbunan memiliki tinggi lereng 20 meter, dengan kemiringan 1V:2H, dan terdiri dari beberapa lapisan. Penelitian ini dilakukan pada konstruksi bertahap (staged construction) lereng dengan model tanah Mohr Coulomb. Pemodelan stabilitas lereng memvariasikan debit hujan, penggunaaan lapis perkuatan geotekstil dan pemodelan sampah dikombinasikan dengan tanah lempung. Dari penelitian yang dilakukan, pemodelan dengan berbagai variasi hujan tidak terlalu berpengaruh terhadap penurunan faktor keamanan, sedangkan penggunaan geotekstil dan kombinasi dengan tanah lempung dapat menaikan nilai faktor keamanan
ANALISIS GEOTEKNIK TEROWONGAN KERETA API KEBASEN MENGGUNAKAN METODE ELEMEN HINGGA 3D Hermawan, Dody; Hamdhan, Indra Noer
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil  Vol. 3 No. 1 (2019)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v3i1.3310

Abstract

Perbukitan Kebasen, Banyumas memiliki rencana membangun jalur rel kereta yang mempunyai konfigurasi double track guna memenuhi peningkatan jumlah pengguna. Pada wilayah yang sangat terbatas daerah jangkauan konstruksinya terowongan merupakan salah satu pilihan yang dapat digunakan. Analisis geoteknik terowongan kereta api Kebasen dibutuhkan untuk mengetahui nilai faktor kemanan, face stability, dan gaya-gaya dalam yang bekerja pada terowongan tersebut. Sistem perkuatan terowongan yang digunakan pada formasi tanah-batuan di perbukitan Kebasen adalah rock bolt dan shotcrete dengan menggunakan metode konstruksi New Austrian Tunneling Method (NATM). Model yang digunakan adalah model dengan perkuatan dan tanpa perkuatan, dan dianalisis dengan metode elemen hingga 3-dimensi. Hasil yang diperoleh pada model dengan perkuatan, yaitu nilai faktor kemanan 8,35 dengan deformasi terbesar 0,0737 m, sedangkan pada model tanpa perkuatan nilai faktor keamanan adalah 1,84 dengan deformasi sebesar 0,417 m.Kata Kunci: terowongan, face stability, metode elemen hingga, NATM, rock bolt shotcrete, deformasi
Pengaruh Beban Terpusat di Perkerasan Lentur pada Tanah Lempung Lunak dengan Perkuatan Stone Column Wijaya Panjaitan, Pita Uli Artha; Syahril, Syahril; Hamdhan, Indra Noer
RekaRacana: Jurnal Teknil Sipil Vol 11, No 2: Juli 2025
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaracana.v11i2.134

Abstract

ABSTRAKDaya dukung rendah dan kompresibilitas tinggi pada tanah lempung lunak beresiko mengalami penurunan yang mengakibatkan rusaknya struktur perkerasan lentur. Metode perbaikan tanah stone column efektif meningkatkan daya dukung, mengurangi penurunan dan mendistribusikan beban secara lebih merata. Meskipun aplikasi stone column telah banyak diteliti, tetapi penelitian mengenai pengaruhnya terhadap perkerasan lentur di bawah beban terpusat masih terbatas. Metode penelitian meliputi mendesain tebal perkerasan lentur dengan metode Manual Desain Perkerasan 2024 dan analisis numerik dengan software PLAXIS 3D. Stone column diameter 0,8 m dan jarak 2,2 m meningkatkan safety factor sebesar 142,67% dan daya dukung sebesar 70,19%, serta mereduksi displacement sebesar 74,67%. Temuan penelitian ini dapat memberikan kontribusi dalam merancang perkerasan lentur yang efisien dan berkelanjutan, serta mendukung program strategis pemerintah yang disebabkan oleh meningkatnya pembangunan infrastruktur.Kata kunci: perkerasan lentur, tanah lempung lunak, safety factor, displacement, daya dukung ABSTRACTSoft clay soils' low bearing capacity and high compressibility are at risk of settlement, damaging the flexible pavement structure. The stone column soil improvement method effectively increases bearing capacity, reduces settlement and distributes loads more evenly. Although the application of stone columns has been widely researched, research on their effect on the flexible pavement under centred load is limited. The research method includes designing the thickness of flexible pavement using the Pavement Design Manual 2024 method and numerical analysis with PLAXIS 3D software. Stone columns of 0.8 m diameter and 2.2 m spacing increased the safety factor by 142.67%, bearing capacity by 70.19%, and reduced displacement by 74.67%. The findings of this research can contribute to designing efficient and sustainable flexible pavements and supporting the government's strategic programs caused by increased infrastructure development.Keywords: flexible pavement, soft clay soil, safety factor, displacement, bearing capacity 
Development of Experimental Models on Floating Breakwaters Harapan Saragih, Hotma; Soegiarso, Roesdiman; Hamdhan, Indra Noer
Asian Journal of Social and Humanities Vol. 2 No. 4 (2023): Asian Journal of Social and Humanities
Publisher : Pelopor Publikasi Akademika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59888/ajosh.v2i4.232

Abstract

Indonesia is the largest archipelagic country in the world with a potential area consisting of 17,480 islands with a sea stretch of 5.8 million km2 and has the fourth longest coastline in the world at 95,181 km, has a very high level of risk of abrasion hazards, especially considering that more than 60% of Indonesians live in coastal areas. The main purpose of a floating breakwater is to protect an area against unwanted wave heights. One of the most important boundary requirements in port design is allowable downtime. This is a period of time when the port cannot fulfill its function so as to prevent the occurrence of unwanted things from the movement of ships. Downtime occurs when a certain wave height is exceeded, causing unwanted ship movements. This implies that the wave transmitted by the floating breakwater to the port determines the downtime. Of the 7 (seven) types that exist, the box type is taken for research because the box type is more effective and efficient in dampening waves. Then the type of box that is used as a test model is carried out with 2 (two) conditions. The test model to be studied is a floating pontoon with a mooring line and a floating pontoon tethered to a pile.
Co-Authors Adrianto Kresnohadi Adrianto Kresnohadi, Adrianto Adrin Tohari Alfafa, Muhamad Fadhlan Arzunnita Pramulandani asep hilman rosadi Ayu Risnawati Azizi Rochman Bahari, Sonny Riantama Bemby S. Dearini J, R. Thasyia Puteri Dedi Rahdianata Desti Santi Pratiwi Desti Santi Pratiwi Devy Dhea Wulandari Eliza, Emilia Erdina Tyagita Utami Fadhillah, Ryan Achmad Fadilah, Rifki Fadjar Mohamad Elfaaz Fadjar Mohamad Elfaaz, Fadjar Mohamad Fauzi, Imron Maulana Fauziah Fitriani Iskandar Fauziah Fitriani Iskandar, Fauziah Fitriani Fikri Yudhistira Nugraha Fikri Yudhistira Nugraha, Fikri Yudhistira Fitri Virliani Anugrah Fitriana, Sena Bayu Adji Frizkia Azifa Silmi Geni Firuliadhim Gibral Maulana Harapan Saragih, Hotma Henoch Leindrio Cornelis Henoch Leindrio Cornelis, Henoch Leindrio Hermawan, Dody Ikhya Ikhya Ikhya Ikhya, Ikhya Imam Aschuri Imron Maulana Fauzi Kabul Suwitaatmadja Ketut Devy Apriyani Ketut Devy Apriyani, Ketut Devy Kurnia, Prana Lesmana, Nirpan Marsya Imara Sabrilia Maulana, Gibral Muhamad Fadhlan Alfafa Muhammad Yanuar Ohoimas Muhammad Yanuar Ohoimas, Muhammad Yanuar Nadya Utami Rivanga Naess, Victor Firstkiel Feber Nanda, Teuku Nabilla Nirpan Lesmana Oktofani, Khansa Nuansa Permatasari, Widya Yunita Pratiwi, Desti Santi R. Thasyia Puteri Dearini J Raden Wahyu Mulyana Raden Wahyu Mulyana, Raden Wahyu Rahdianata, Dedi Rahmah, Rizka Adisya Kamila Rangga Anhar Rangga Anhar, Rangga Rifki Fadilah Rinaldi Alamsyah Riny Yolandha Parapat Rivanga, Nadya Utami Rochman, Azizi Ryan Achmad Fadhillah S., Bemby Sahib, Yasmin Jihan Fahira Sari, Namirah Nurgia Sena Bayu Adji Fitriana Shaputra, Muhammad Rio Eka Silmi, Frizkia Azifa Soegiarso, Roesdiman Sonny Riantama Bahari Suwitaatmadja, Kabul Syahril Syahril Syahril Teuku Nabilla Nanda Utami, Erdina Tyagita Wahab, Dimas Athhariyadi Widya Yunita Permatasari Wijaya Panjaitan, Pita Uli Artha Wulandari, Devy Dhea Yasmin Jihan Fahira Sahib Yessi Nirwana Kurniadi