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Ferry Fatnanta
Universitas Riau
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Other

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Permeability Prediction for Expansive Soil Based on Physical Properties Using Artificial Neural Networks Fatnanta, Ferry; Suprayogi, Imam; Ranata, Nicola Rabb; Nugroho, Soewignjo Agus; Putra, Agus Ika
Makara Journal of Technology Vol. 27, No. 2
Publisher : UI Scholars Hub

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

Abstract

Permeability is a soil parameter related to the construction industry to understand the processes of infiltration, runoff, and settlement. The risk of testing errors is inevitable in permeability investigations, especially in expansive soils. Trial and error in permeability testing becomes difficult due to soils with small pore sizes and large shrinkage expansion. Several studies related to soil physical properties that affect permeability have been conducted. However, the correlation results obtained still have poor accuracy. Artificial neural networks (ANN) are machine learning systems that can change their structure to solve problems that are included in the system. The use of ANNs in data learning is applied to help the established model predict future output values with a small error value. This research aims to study the correlation between the physical properties of expansive soil that affect its permeability using ANN correlation and then produce correlation equations for future inputs. The research was conducted with input data in the form of soil liquid limit, soil plasticity index (IP), %fine grains, and soil permeability as output data. Results demonstrated a good correlation between soil physical properties and permeability, revealing high accuracy in the output regression equation.
Correlation of CBR Values and Mackintosh Probe on Clay Soil with Variations of Bentonite, Kaolin and Sand Nugroho, Soewignjo Agus; Fatnanta, Ferry; Wibisono, Gunawan; Muliyono
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 4 (2025): JGEET Vol 10 No 04 : December (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.4.24252

Abstract

Coastal areas are typically characterized by non-uniform soil properties, often featuring soft, water-saturated soils with high plasticity, which frequently results in low soil bearing capacity. This study aims to investigate the relationship between California Bearing Ratio (CBR) values and Mackintosh Probe (MP) test results by utilizing a mixture of clay soil comprising bentonite and kaolin with sand in various compositions. These mixtures were prepared as laboratory test samples to simulate the soil conditions in these areas. The primary objective of this research is to develop a faster and more efficient alternative method for estimating soil bearing capacity in coastal regions. A total of 81 samples were prepared with variations in moisture content, compaction levels, and the composition of sand and clay mixtures. Testing was conducted using both CBR and MP methods. The analysis revealed a significant positive correlation between MP and CBR values, represented by the linear regression model: CBR = 0.7498 * MP, with a coefficient of determination (R²) of 0.9542. This indicates that approximately 95.42% of the variation in CBR values can be predicted from the MP test results. The model's accuracy was further validated through training and testing using 5 randomly selected data points from the sample set. The findings suggest that the Mackintosh Probe can serve as a preliminary tool for estimating soil bearing capacity in coastal areas, particularly in field conditions where laboratory equipment is limited. However, for broader applicability, further validation of this model is necessary to accommodate more complex soil conditions in the field.
Numerical Analysis of The Effect of Creep on The Settlement and Failure Pattern of Helical Piles Foundations Satibi, Syawal; Fatnanta, Ferry; Aprillia. H.R., Bella
ASTONJADRO Vol. 14 No. 4 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i4.19152

Abstract

Peat soil is a unique type of soft soil that has a low bearing capacity and experiences significant creep effect. This inherent challenge necessitates effective improvement methods to enhance its stability, among which helical pile foundations stand out as a viable solution. Despite their promising application, the nuances of how creep influences the performance of these helical piles in peat soil remain largely unexplored. This study aims to analyse the effect of creep on the settlement and failure pattern of helical pile foundations in peat soils. Axis-symmetric two-dimensional numerical analyses using the finite element method were carried out to model helical piles foundations with varying creep indices (Cα) and differing spacings between the helical plates (1D and 3,5D). The results showed that the effect of creep caused the settlement of helical piles to increase as the value of Cα increases. However, the changes of excess pore water pressure around the helical pile foundation were not significantly affected by the variation of Cα value. In addition, the failure patterns of helical piles foundations were not affected by the creep effect, with the failure mechanism still following the cylindrical shear pattern for the 1D inter-plate spacing and the individual bearing pattern for the 3,5D inter-plate spacing. This study provides insight into the importance of considering the effect of creep in the design of helical piles foundations in peat soils for long term use.
PENGEMBANGAN RUMUS KORELASI CLEGG IMPACT VALUE DAN NILAI CALIFORNIA BEARING RATIO PADA TANAH KELANAUAN UNTUK TIMBUNAN Frengki Ashari Aritonang; Muhamad Yusa; Ferry Fatnanta
Racic : Rab Construction Research Vol. 10 No. 2 (2025): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i2.6147

Abstract

In embankment construction, material selection is critical and must meet technical requirements to ensure quality and safety. The California Bearing Ratio (CBR) value is commonly used to determine the soil bearing capacity in supporting loads applied above it. However, field CBR testing is relatively time-consuming, especially for large- scale projects. Therefore, a faster yet accurate alternative testing method is needed. One such alternative is the use of the Clegg Impact Hammer (CIH). This study aims to analyze and develop a correlation formula between the Clegg Impact Value (CIV) and field CBR values, using the Dynamic Cone Penetrometer (DCP) on ML (silt) and MH (elastic silt) soils for embankment construction. The research was conducted in Pomalaa, Southeast Sulawesi through field testing and laboratory testing (soil physical properties). Field tests included DCP and CIH, while laboratory tests covered moisture content and Atterberg limits. The results showed that the silty soils had a moisture content ranging 13.11%-46.95%, liquid limit 32.65%-90.09%, plastic limit 26.62%-59.26%, and plasticity index 5.53%- 33.63%. Field testing (DCP and CIH) showed the best correlation in MH soil at a depth of 20 cm, with an R² value of 0.6979. The resulting correlation formula is %CBR= 0.5896(CIV)1.02. With a correlation coefficient categorized as “strong,” this correlation has the potential to be used as a rapid method for determining CBR values in the field.
EVALUASI KAPASITAS DAYA DUKUNG AKSIAL DAN LATERAL HELICAL PILE MENGGUNAKAN METODE EMPISRIS DAN ANALISIS BATAS TERADAP HASIL PENGUJIAN AKSIAL DAN LATERAL DI LAPANGAN Farian Albajili; Muhamad Yusa; Ferry Fatnanta
Racic : Rab Construction Research Vol. 11 No. 1 (2026): JUNI
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v11i1.6744

Abstract

The construction of deep foundations in operational industrial facilities faces challenges due to the presence of existing buildings and active machinery. Helical piles offer a stable, environmentally friendly, and vibration-free solution that is safe for surrounding structures. This study compares the results of empirical methods and limit analysis in the design of helical piles with field test results of axial loads. The research began with the collection and correction of Standard Penetration Test (SPT) data to a depth of 15 m to determine soil technical parameters. Based on these data, helical pile models with various design configurations were analyzed using empirical methods, limit analysis, and field testing. The results indicate that limit analysis provides axial load capacities that are closer to field test results compared to other empirical methods. The highest capacity was obtained for pile type D1-H1-S1-M piles, which have larger helix and shaft diameters, while differences in test locations meant that pile type D2-H2-S3-SH piles could not be directly compared to the others
TER TINJAUAN TEKNIS DAN EKONOMIS PENANGANAN PERSIMPANGAN JALAN (STUDI KASUS JL. KAHARUDIN NASUTION – JL. PASIR PUTIH KOTA PEKANBARU) Rafli Arie Pradhana; Ari Sandhyavitri; Muhammad Ikhsan; Leo Sentosa; Muhamad Yusa; Ferry Fatnanta
Racic : Rab Construction Research Vol. 11 No. 1 (2026): JUNI
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v11i1.6972

Abstract

Pekanbaru City, as the provincial capital, has experienced significant population growth, resulting in increased mobility and severe traffic congestion, particularly at urban intersections. This study evaluates the performance and feasibility of management alternatives for the problematic Kaharudin Nasution-Pasir Putih intersection. The analysis uses the Indonesian Road Capacity Guidelines (PKJI 2023) for technical performance assessment and the LAPI ITB 1996 method for economic analysis, focusing on Vehicle Operating Costs (VOC), Benefit Cost Ratio (BCR), and Net Present Value (NPV) for the short (5 years), medium (10 years), and long (15 years) terms. The existing condition indicates a poor Level of Service (LOS D) with a Degree of Saturation (DS) of 0.76. Four alternatives were evaluated: Traffic Light Optimization, Road Widening, Adding 1 Lane, and Construction of an Overpass. The results indicate that Alternatives 1, 2, and 3 offer only short- to medium-term improvements. The construction of the Flyover (Alternative 4) is the only feasible long-term solution (15 years), proven to be economically feasible with BCR and NPV values of 1.46 and 55.6 billion rupiah, in the 10th year 3.19 and 270.3 billion rupiah, and in the 15th year 4.79 and 482.3 billion rupiah. which means the benefit value is greater than the costs incurred, so that the construction of the flyover is economically feasible to be implemented to minimize the increasing financial losses due to traffic delays.
EVALUASI KAPASITAS SISI UDARA BERBASIS RUNWAY OCCUPANCY TIME PADA BANDAR UDARA SULTAN SYARIF KASIM II PEKANBARU Michael Exaudi Siregar; Leo Sentosa; Muhamad Yusa; Ari Sandhyavitri; Gunawan Wibisono; Ferry Fatnanta
Racic : Rab Construction Research Vol. 11 No. 1 (2026): JUNI
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v11i1.8194

Abstract

Sultan Syarif Kasim II Airport serves as the main gateway to Pekanbaru City and is planned as a primary hub airport. This study evaluates the existing airside capacity, runway–taxiway limiting factors, traffic forecast, and capacity improvement alternatives. The analysis used airside geometry data, field operational observations, annual aircraft movements, and socioeconomic data. The results show that traffic is dominated by narrow-body jets; therefore, the capacity limitation is mainly affected by the inefficient runway–taxiway configuration, which increases runway occupancy time. The existing mixed-operation capacity is 15 movements/hour, equivalent to 43,800 regular movements/year. The proposed development alternatives can increase the capacity to 30 movements/hour, equivalent to 125,925 regular movements/year.
Sifat Fisik Tanah Berpengaruh Terhadap Kuat Geser Tanah Wilayah Pesisir Menggunakan ANFIS Ewis Oktareza; Ferry Fatnanta; Imam Suprayogi
Journal of Infrastructure and Civil Engineering Vol. 6 No. 1 (2026)
Publisher : Program Studi Teknik Sipil Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/jice.v6i1.160

Abstract

Tanah pesisir didominasi lempung marin dan tanah organik tinggi dengan kuat geser rendah, kompresibilitas tinggi, dan sensitif terhadap kadar air serta salinitas, sehingga meningkatkan risiko kegagalan infrastruktur. Penelitian ini mengevaluasi kinerja metode soft computing, Adaptive Neuro-Fuzzy Inference System (ANFIS), dalam memprediksi kuat geser tak terdrainase (Cu) serta menentukan parameter sifat fisik tanah paling dominan. Data terdiri dari 190 tanah pesisir, meliputi kadar air, berat isi, berat jenis, Atterberg limit, dan liquidity index. ANFIS diterapkan menggabungkan jaringan saraf dan logika fuzzy untuk menangkap hubungan nonlinier dan ketidakpastian data. Hasil menunjukkan ANFIS memiliki performa terbaik (R All = 0,8443; RMSE = 0,1673). Analisis ANFIS dengan performa terbaik mengidentifikasi Plastic Limit (PL) dan Specific Gravity (Gs) sebagai faktor utama yang mempengaruhi kuat geser (Cu). Penelitian ini menunjukkan bahwa komposisi mineral dan densitas partikel tanah di wilayah pesisir berdampak signifikan pada kuat geser tanah, serta efektivitas ANFIS dapat dijadikan alat prediksi awal untuk perencanaan geoteknik dan mitigasi risiko infrastruktur pesisir.
PENGARUH PASIR, ABU TERBANG, DAN AIR PADA KARAKTERISTIK MEKANIS TANAH LEMPUNG Soewignjo Agus Nugroho; Ferry Fatnanta; Syawal Satibi; Muhamad Yusa; Agus Ika Putra; Gunawan Wibisono
Matriks Teknik Sipil Vol 13, No 1 (2025): Juni
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mateksi.v13i1.101745

Abstract

The shear strength and bearing capacity of soil are influenced by its type, mineral composition, and particle size. Both cohesion and the friction angle play significant roles in determining soil strength, while density is crucial for supporting forces. This study examines the effects of grain size, soil minerals, and water content on the shear strength and bearing capacity of soil. Various tests such as California Bearing Ratio, Direct Shear, and Unconfined Compression Test are conducted on sand and clay, compacted with different numbers of strikes and water contents. The study also explores the impact of organic soil and fly ash on shear strength. Additionally, immersion tests are performed to assess how water absorption affects the soil’s properties. Results show that compression at the optimum moisture content (OMC) produces the highest strength, while compression at higher moisture levels results in greater strength loss compared to drier conditions. At a constant water content, increased soil density leads to higher bearing capacity. Conversely, excess water content reduces the soil's strength. The presence of clay, fly ash, and organic material increases water absorption capacity. In sandy soils, the distribution of grain size significantly influences shear behavior. The addition of clay enhances both the friction angle and soil cohesion, while higher fly ash content tends to reduce the friction angle and improve soil cohesion. Interestingly, cohesion appears to be unaffected by the sand's gradation.  Keywords: bearing capacity, clay, fly ash, shear strength, sand.
Pemetaan Potensi Desa Aur Sati Kabupaten Kampar Provinsi Riau Monita Olivia; Ferry Fatnanta; Gunawan Wibisono; Muhammad Ikhsan; Iskandar Romey Sitompul; Rizqy Ridho Prakasa
Riau Journal of Empowerment Vol 7 No 3 (2024)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/raje.7.3.177-189

Abstract

Mapping village potential is an important aspect of sustainable rural development. It allows village governments and communities to optimize resource management and improve community welfare. In general, community service activities are designed into three stages, namely preparation, activity implementation, and evaluation and aim to conduct comprehensive village potential mapping. The community service activities involve active participation of the community and village officials in Focus Group Discussions (FGDs) to identify, document, and map all aspects of village potential. This method aims to empower village communities in regional development by producing comprehensive data on existing village potential. The resulting village potential map becomes an invaluable tool for village governments in sustainable development planning and village asset management. Through this village potential mapping, Aur Sati Village is expected to optimize its opportunities to improve community welfare and develop its regional characteristics, including tourism, agriculture, and fisheries potential.
Co-Authors ', Muhardi . Zulfan Abdul Halim Muqorrobin Abdullah Ihsan Alkubuwi Achmad Noerkhaerin Putra Adi, Sapria Adi, Sapria Adnan Ruziq Ihsan Agus Ika Putra Aisyah Putri Al Ridho, Muhammad Faisal Albajili, Farian Alfian Alfian Alfian Malik Alridho, Muhammad Faizal Andius Dasa Putra Anggara, Vebrian Aprillia. H.R., Bella Aras Mulyadi Ari Sandhyavitri Arief Rahman Arifan Farhan Ariza, Ariza Azizah . Azra Zulnasari Bramson P Manik, Bramson P Charles AN Daniel Irfan Dede Subhan Dodi Pratama Dodi Pratama Doris Ade Widyarti Effendi Sianipar Ela Fitriana Endala Siboro Epi Mili Yanti Erwin Satria Anugrah Ewis Oktareza Fachry Abda El Rahman Fadel Muhammad Fadhilah, Randy Fadhlurrahman, Fadhlurrahman Fadlan Fadlan Fajrian Saddek Farian Albajili Fauzan Hidayattullah Fauzi, Manyuk FERI SETIAWAN Fikri Ananda Fikri Hidayat Frengki Ashari Aritonang Frimadofi Frimadofi Galang Maulana Gina Purnama Sari Giri Prayoga Gunawan Wibisono Gunawan Wibisono Gunawan Wibisono Gussyafri Gustika, Rani Ardeylina Hadiyan Putra, Hadiyan Haryo Dwito Armono Hengki Tornando Herli Fajri Himmatul Azizah HR, Bella Aprilia Ihsan, Adnan Ruziq Imam Hanafi Imam Suprayogi Irfan Hasan Iskandar Romey Sitompul Joshua, Norman Julperizal Julperizal Khairatu Zaro Laksono Trisnantoro Lembasi, Muhammad Khadafi Leo Sentosa Lingga Panji Subrata, Lingga Panji Lisa Trisnawati Lubis, Shakila Fuadah M Faizal Alridho M. Yusa Maulidi, M Aldi Michael Exaudi Siregar Monita Olivia Mufriadi Mufriadi Muhamad Yusa Muhammad Faisal Al Ridho Muhammad Ikhsan Muhammad Ikhsan Muhammad Khadafi Lembasi Muhammad Naufal Muhammad Rico Saputra Muhammad Safrianda Muhammad Yevizal Muhammad Yusa Muhardi Muhardi Muhardi Mukhelnalis Sutazril Muliyono Novan, Andre Ongko, Andarsin Prayogo, Giri Rafika Rani Zainuddin Rafli Arie Pradhana Rahman, Sayful Ralan Ditra Ranata, Nicola Rabb Remon Muslim Riady, Azhar Rinaldi Rinaldi Rio Hidayat Rio Zambika Rizqi Yuliana Rizqy Ridho Prakasa Robi Handi Putra Ronny Tigor Sitanggang S A Nugroho Said Defri Ariandi Saputra, Adetia Saputra, Riola Satibi, Syawal Satria, Zoni Sayoga, Davin Simanjuntak, Lambok Jadiaman Soewignjo Agus Nugroho Soewignjo Agus Nugroho Soewignjo Agus Nugroho Sofyan Subhan, Dede Suhaimi Siregar Suratman Suratman Suryadi Ramadhan Sutikno, Sigit Syamsul Arifin Tiara Mahardika Tornando, Hengki Trimaijon Trimaijon Trimaijon, Trimaijon Unzi Marwan Usman Muhammad Tang Usman, Fauzan Vebrian Anggara Wahyudi Citrosiswoyo Wahyudi Citrosiswoyo Wahyudi Citrosiswoyo Widi Agoes Pratikto Widi Pratikto Widi Pratikto, Widi Wulan Sri Rahayu Wulandari, Deny Yolanda Widyan Yoyon Kurniawan Yusa, M. Yusa, Muhammad Zoni Satria Zulnasari, Azra