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INDONESIA
Jurnal Teknik Sipil
Published by Institut Teknologi Bandung
ISSN : 08532982     EISSN : 25492659     DOI : 10.5614/jts
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Jurnal Teknik Sipil merupakan jurnal ilmiah yang diterbitkan berkala setiap tiga bulan, yaitu April, Agustus dan Desember. Jurnal Teknik Sipil diterbitkan untuk pertama kalinya pada tahun 1990 dengan membawa misi sebagai pelopor dalam penerbitan media informasi perkembangan ilmu Teknik Sipil di Indonesia. Sebagai media nasional, Jurnal Teknik Sipil diharapkan mampu mengakomodir kebutuhan akan sebuah media untuk menyebarluaskan informasi dan perkembangan terbaru bagi para peneliti dan praktisi Teknik Sipil di Indonesia. Dalam perkembangannya, Jurnal Teknik Sipil telah terakreditasi sebagai jurnal ilmiah nasional sejak tahun 1996 dan saat ini telah terakreditasi kembali (2012-2017). Dengan pencapaian ini maka Jurnal Teknik Sipil telah mengukuhkan diri sebagai media yang telah diakui kualitasnya. Hingga saat ini Jurnal Teknik Sipil tetap berusaha mempertahankan kualitasnya dengan menerbitkan hanya makalah-makalah terbaik dan hasil penelitian terbaru.
Arjuna Subject : -
Articles 974 Documents
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Pengembangan PentaPod, Armor Beton Jenis Baru Untuk Pelindung Bangunan Pantai Natakusumah, Dantje Kardana; Achiari, Hendra; Oktariyanto Nugroho, Eka; Adinata, Fitra; Hidayatulloh, Syarif; Angelo Ishakputra, Jonathan; Aryo Bronto, Danis; Syabhan, Kiromi
Jurnal Teknik Sipil Vol 31 No 1 (2024): Jurnal Teknik Sipil - Edisi April
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2024.31.1.4

Abstract

Abstrak Check dam, yang dikenal sebagai bendungan kecil atau bendung pengendali sedimen, adalah struktur yang dibangun melintang aliran air, seperti sungai atau saluran drainase, dengan tujuan utama untuk mengendalikan aliran air dan mengurangi kecepatannya. Umumnya dibuat dari pasangan batu atau beton, namun penelitian ini menggunakan checkdam yang terbuat dari pentapod. Check Dam PentaPod yang terbuat dari PentaPod menawarkan solusi armor beton inovatif dengan fitur interkonektivitas, dirancang khusus untuk mengurangi kecepatan air dan secara efektif mencegah erosi dan degradasi dasar sungai. Dengan bentuk lintas seksional yang kompak, struktur ini ditempatkan secara strategis di sungai guna memperlambat aliran air dan meningkatkan stabilitas struktural terhadap gaya dinamis arus sungai. Uji model hidraulik Check Dam PentaPod yang dilakukan oleh Laboratorium Sungai dan Sedimentasi ITB bertujuan mensimulasikan berbagai kondisi hidrodinamik untuk mengevaluasi efektivitas dan kinerja struktur dalam menjaga integritas dan stabilitas di bawah beragam kondisi aliran dan tinggi air. Langkah ini penting untuk memastikan kemampuan Check Dam PentaPod dalam mengontrol degradasi dasar sungai dan menjaga stabilitas tepi sungai secara efektif. Kata-kata Kunci: PentaPod, armor beton baru, check dam, perlindungan alur sungai. Abstract Check dams, also known as small dams or sediment control dams, are structures built across waterways like rivers or drainage channels. Their primary purpose is to regulate water flow and reduce its velocity. Traditionally constructed from stone or concrete, this research explores check dams made from a novel material: PentaPods. The PentaPod Check Dam utilizes prefabricated PentaPod concrete units with interlocking features. This innovative armor solution is specifically designed to decrease water velocity and effectively prevent erosion and riverbed degradation. Due to its compact cross-sectional form, the structure can be strategically placed in rivers to slow down water flow and enhance its structural stability against the dynamic forces of river currents.Hydraulic model testing of the PentaPod Check Dam, conducted by the ITB River and Sedimentation Laboratory, aims to simulate various hydrodynamic conditions. This evaluation process assesses the structure's effectiveness and performance in maintaining integrity and stability under diverse flow rates and water levels. These tests are crucial for ensuring the PentaPod Check Dam's ability to effectively control riverbed degradation and safeguard the stability of riverbanks.  Keywords: PentaPod, new concrete armor, check dam, river channel protection.
Kajian Implementasi Standar Protokol BIM Kementerian PUPR 2020 Studi Kasus : Proyek Pembangunan Gedung Universitas Nahdlatul Ulama (UNU) Yogyakarta Putra, Auditya; Puri, Eliza
Jurnal Teknik Sipil Vol 31 No 1 (2024): Jurnal Teknik Sipil - Edisi April
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2024.31.1.7

Abstract

Abstrak Penerapan BIM di Indoensia perlu dianalisis dan dievaluasi agar dapat menciptakan penggunaan BIM yang lebih efektif dengan mengacu kepada standar protokol yang telah dibentuk oleh kementerian PUPR. Proyek yang ditinjau adalah proyek Universitas Nahdlatul Ulama Yogyakarta yaitu proyek percobaan yang menerapkan BIM dengan pedoman Dokumen Protokol BIM Kementerian PUPR 2020. Penelitian yang dilakukan adalah menganalisis tingkat kepentingan dan tingkat kinerja faktor pelaksanaan BIM pada proyek untuk menentukan prioritas kebijakan dan evaluasi yang perlu dilakukan dengan menggunakan metode Importance Performance Analysis. Selanjutnya, dilakukan juga analisis kesesuaian penerapan BIM pada proyek terhadap standar protokol BIM Kementerian PUPR tahun 2020. Dari 15 faktor penerapan yang ditinjau, kedua analisis tersebut memberikan hasil yaitu terdapat enam faktor yang pelaksanaannya sudah sesuai. Didapatkan juga hasil bahwa sejumlah faktor dievaluasi berlainan oleh tim pelaksana BIM antara sifat kuadran dan kesesuaiannya. Hal tersebut mengindikasikan adanya pemahaman terhadap standar protokol yang belum menyeluruh. Sehingga dibutuhkan adanya sosialisasi terkait dengan pelaksanaan BIM menurut standar protokol BIM Kementerian PUPR tahun 2020 oleh Kementerian PUPR untuk seluruh disiplin proyek. Kata-kata Kunci: Bangunan gedung, BIM, Evaluasi pelaksanaan, Industri konstruksi, Standar protokol, Teknologi informasi. Abstract The application of BIM in Indonesia needs to be analyzed and evaluated to create a more effective use of BIM with reference to standard protocols established by PUPR competition. The project under review is the Nahdlatul Ulama University project in Yogyakarta, which is a pilot project that implements BIM with the Ministry of PUPR's 2020 BIM Protocol Document guidelines. The research is conducted to analyze the level of Importance, and the performance factors for BIM implementation on projects that need to determine policy priorities and evaluations carried out using the Importance Performance Analysis method. Furthermore, the implementation of BIM for projects was also carried out against the Ministry of PUPR's 2020 BIM protocol standards. From 15 implementation factors reviewed, the two analyzes yielded results, six factors whose implementation was appropriate. The results also showed that several factors were evaluated differently by the BIM implementation team between the nature of the quadrants and their suitability. This indicates an understanding of standard protocols that is not comprehensive. So that there is a need for socialization related to the implementation of BIM according to the Ministry of PUPR's 2020 BIM protocol standards by the Ministry of PUPR for all project disciplines. Keywords: BIM, Building, Construction industry, Implementation evaluation, Information technology, Protocol standards.
Studi Perbandingan Analisis Statik dan Dinamik pada Girder Kereta Cepat Lim, Erwin; Zirads, Bob; Kusumastuti, Dyah; Setio, Herlien D.
Jurnal Teknik Sipil Vol 31 No 1 (2024): Jurnal Teknik Sipil - Edisi April
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2024.31.1.2

Abstract

Abstrak Faktor perbesaran dinamis (dynamic amplification factor – DMF) lazim digunakan oleh perencana untuk memperbesar respons struktur (gaya dalam, perpindahan) yang didapatkan dari analisi statis untuk mengakomodasi efek dinamis dari laju kendaraan. Di dalam beberapa Code, faktor amplifikasi dinamis cenderung berupa rumus empiris yang tergantung pada bentangan struktur, bukan pada laju kendaraan. Studi ini hendak mengevaluasi berapa faktor amplifikasi dinamis yang mungkin terjadi pada momen lentur dan lendutan girder kereta apabila laju kendaraan divariasikan dari 100 km/jam s.d. 550 km/jam. Pemodelan dan analisis didasarkan pada girder tipikal untuk kereta cepat untuk bentang 32,6 m dengan menggunakan software metode elemen hingga. Hasil analisis software pertama-tama diverifikasi dengan solusi eksak dari persamaan gerak dinamik untuk beban terpusat berjalan (moving load), kemudian dilanjutkan dengan analisis terhadap beban kereta cepat CR400AF. Perbandingan antara respons dinamis dan statis (faktor amplifikasi dinamis) yang direkomendasikan oleh Code cenderung konservatif untuk laju kendaraan rencana 350 km/jam.   Kata-kata Kunci: Respon dinamik, beban bergerak, kereta cepat, jembatan box girder, time history analysis. Abstract Dynamic amplification factor is commonly used by design engineers to amplify structural response (bending moment, deflection) obtained from static analysis to accommodate dynamic effect resulted from vehicle’s speed. In some design codes, this dynamic amplification factor is an empirical equation which is simply a parameter of girder length, not of speed. This study evaluates the possible amplification factor which migh occur when the speed is varied from 100 km/hour to 550 km/hour. The modeling and analysis is based on a typical girder for high speed train with girder length 32,6 m using finite element software. The results of software was firstly verified against exact solution of an equation of motion due to single concentrated moving load. Then, an analysis due to a high speed train CR400AF was carried out. The comparison between dynamic and static response (indicated by the dynamic amplification factor), be it maximum bending moment or mid span deflection, recommended by the design code tends to be conservative for operational speed of 350km/hour. Keywords: Analisis dinamis, analisis statis, faktor amplifikasi dinamik, kereta cepat, respons struktur.
Kajian Eksploratori Hubungan Praktik Komunikasi dan Hasil Proyek Konstruksi di Sumatera Barat Utama, Wahyudi P.; Sikumbang, Nasril; Warman , Hendri; Zulherman, Zulherman; Fuadi, Al Busyra; Agus , Elfida
Jurnal Teknik Sipil Vol 31 No 2 (2024): Jurnal Teknik Sipil - Edisi Agustus
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2024.31.2.12

Abstract

Communication management is considered as an important factor related to performance improvement in construction projects. This study aims to identify and determine communication management practices (CMP) in construction projects correlated to project outcomes (PO). Data were obtained from 209 questionnaires distributed to contractors and consultants in the West Sumatra province. The research questionnaire was divided into two components the respondent's profile and four PMK factors, namely Information and Communication Technology (ICT), Communication Skills and Competence (CSC), Communication Management Plan (CMP) and Team Work (TW). Each factor has 4-5 statement items. In terms of project results, it was seen from the project scope, cost, time, quality and safety level. Data were analyzed using Principle Axis Factoring (PAF). The next analysis was the Spearman correlation to evaluate the relationship between each CMP factor and PO. The results showed that there was a strong positive correlation between the three CMP factors (ICT, CSC and TW) and PO. Conversely, no relationship was found between the CMP factor and PO. The may not be fully generalized due to some limitations. However, it helps construction practitioners to recognize the communication aspects that could be improved and strengthened to increase performance of the project.
Kinerja Mekanistik Campuran Beraspal dengan Mensubstitusi Agregat Kasar dengan Batu Vulkanik Merah Agus Ariawan; D.M. Priyantha Wedagama; I Nyoman Arya Thanaya; I Gusti Agung Ratih Kusuma Wardani; I Putu Chandra Wibawa
Jurnal Teknik Sipil Vol 30 No 3 (2023): Jurnal Teknik Sipil
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2023.30.3.8

Abstract

Abstract The increasingly limited availability of volcanic stone in nature has caused road pavement construction materials to use black volcanic stone mixed with red volcanic stone, which is lighter in density and porous. This research aims to analyze the mechanistic performance of asphalt mixtures by substituting coarse aggregate with red volcanic stone up to a percentage of 10% at a granule size of ½", 3/8", No. 4 according to conditions in the field. The asphalt mixture is made using the marshall method. Mechanistic characteristics are obtained from indirect tensile stiffness modulus (ITSM) testing according to BS EN 12697-26: 2012, dynamic creep testing (BS EN 12697–25:2005) and indirect tensile fatigue testing (ITFT) according to BS EN 12697–24:2012 using a dynapave universal testing material (UTM) 30 test tool. The marshall characteristic values of the asphalt mixture meet the specifications of the Ministry of PUPR (2020), the stiffness characteristic increases by an average of 6.9 % for each additional substitution of 5% red volcanic stone. Deformation resistance increases with typical values of creep slope, concluding that asphalt mixtures can be used for heavy traffic loads (ESA >106). The fatigue resistance characteristics are lower (earlier to collapse) compared to without red volcanic stone substitution and there is a decrease in fatigue resistance of 2.18% for each additional 5% red volcanic stone substitution. Keywords: Mechanistic performance, asphalt mixture, substitution, red volcanic stone
An Overview of Technology Landscape in Construction Materials for the Indonesian Construction Industry Rani G. K. Pradoto; Biemo Woerjanto Soemardi; Abdhy Gazali; Hintama Nathaniel Sunarjo; Andira Triana Putri; Rika Permatasari Purba; Ignatius Mahardika
Jurnal Teknik Sipil Vol 30 No 3 (2023): Jurnal Teknik Sipil
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2023.30.3.3

Abstract

Abstract.  The Indonesian construction sector plays a substantial role in the nation's economic growth. According to the World Economic Forum, this industry currently contributes approximately 6% to the global GDP and is projected to increase to 14.7% by 2030. Nevertheless, the construction sector predominantly relies on traditional craft-based methods, resulting in suboptimal performance and quality due to limited technology utilization. Hence, the Indonesian construction industry must increase investment in technology adoption, development, and application to enhance national development support. Material technology plays an essential role in construction projects. A survey of 40 Indonesian contractors revealed that the utilization priority for concrete and steel materials remains high under normal conditions and during the covid-19 pandemic. This study aims to provide a comprehensive overview of the historical development, utilization, contribution, and future strategy for concrete and steel construction material technology in Indonesia. Contrastingly, this data is crucial for shaping construction technology development and utilization policies in Indonesia. The study will systematically chart the technological landscape in the country, employing literature reviews, interviews, and questionnaires as its methodology. Keywords: Material technology, technology development, technology utilization. Abstrak. Sektor konstruksi Indonesia memainkan peran penting dalam pertumbuhan ekonomi negara ini. Menurut World Economic Forum, industri ini memberikan kontribusi sekitar 6% terhadap Produk Domestik Bruto (PDB) global dan diperkirakan akan meningkat menjadi sekitar 14,7% pada tahun 2030. Namun, sektor konstruksi masih sangat mengandalkan metode tradisional, yang mengakibatkan kinerja yang kurang optimal dan kualitas yang rendah karena rendahnya penggunaan teknologi. Oleh karena itu, industri konstruksi Indonesia harus meningkatkan investasi dalam adopsi, pengembangan, dan penerapan teknologi untuk meningkatkan dukungan pengembangan nasional. Teknologi material memainkan peran penting dalam proyek konstruksi. Sebuah survei terhadap 40 kontraktor Indonesia mengungkapkan bahwa prioritas pemanfaatan material beton dan baja tetap tinggi dalam kondisi normal dan selama pandemi covid-19. Studi ini bertujuan untuk memberikan gambaran menyeluruh tentang perkembangan historis, pemanfaatan, kontribusi, dan strategi masa depan untuk teknologi material konstruksi beton dan baja di Indonesia. Sebaliknya, data ini krusial dalam kebijakan pengembangan dan pemanfaatan teknologi konstruksi di Indonesia. Studi ini akan secara sistematis menggambarkan lanskap teknologi di negara ini, dengan menggunakan studi literatur, wawancara, dan kuesioner sebagai metodologi utamanya. Kata-kata kunci: Teknologi material, pengembangan teknologi, pemanfaatan teknologi.
Simulasi Surge Tsunami Dengan Metode Dam Break Menggunakan Reservoar Terbatas Bangguna, David; M. Tangkeallo, Marthen; O. Pandoyu, Ebelhart; Pujiono, Pujiono; E. Wuon, Orva; B. Pakpahan, Irnovia
Jurnal Teknik Sipil Vol 31 No 2 (2024): Jurnal Teknik Sipil - Edisi Agustus
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2024.31.2.5

Abstract

Abstract The dam break method for simulating tsunami surges in the laboratory typically uses a sufficiently long flume, so that the upstream section of the flume, which serves as the reservoir, is also quite long. Using a long reservoir can provide a more extended simulation time for tsunami surge propagation on land, allowing the characteristics of the tsunami surge to be well observed. With a shorter flume, the reservoir space is also limited in length, and the simulation time for tsunami surge propagation is likewise constrained. This study aims to describe the characteristics of the simulated tsunami surge in comparison to the Chanson solution using a limited (short) reservoir. The tsunami surge simulation in a dry channel was conducted under the assumption of a limited reservoir with no bed slope. The water height in the reservoir varied from (d0) = 100 mm, 200 mm, 300 mm, and 400 mm, and the simulation was performed three times for each reservoir height. The tsunami surge simulation with downstream inundation was conducted similarly, but with an initial downstream inundation height of d1 = 100 mm and 150 mm, without initial velocity. The analysis results showed that the height and velocity of the tsunami surge from the simulation for both dry and inundated channels approached the results from Chanson's solution. This indicates that a limited flume length can be used to simulate tsunami surges with the dam break method, and that simulations with initial inundation can simulate the waveforms of undular bore and fully developed bore.
Studi Kelayakan Perlindungan Pesisir Berkelanjutan melalui Integrasi Pemecah Gelombang Bambu dan Budidaya Kerang Hijau Izqi Yustina Ammylia Yusuf; Ahmad Didin Khoiruddin; Nita Yuanita; Alamsyah Kurniawan
Jurnal Teknik Sipil Vol 30 No 3 (2023): Jurnal Teknik Sipil
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2023.30.3.4

Abstract

Abstract One pressing issue posing a significant threat to the coastal ecosystem is abrasion. Therefore, it is imperative to implement an effective and stable coastal protection structure using readily available and cost-effective materials combined with green mussel cultivation to bolster economic benefits for the community. The methodology employed in this study encompasses the integration and analysis of secondary data and the collection of archival information. The findings indicate that the ecological conditions of the waters in Bedono Village, Sayung District at Demak Regency meet the necessary criteria for green mussel cultivation. Bamboo with a minimum length of 7.5 meters and a planting depth of 2 meters is utilized. Financially, this approach proves to be quite advantageous, yielding a Net Present Value (NPV) of Rp1,202,383 for the stake method of green mussel cultivation. The Net Benefit-Cost Ratio (Net B/C) for the stake method of green mussel cultivation is 1.20. Based on the NPV and Net B/C feasibility criteria, the stake method of green mussel cultivation is considered viable. This structural concept is evaluated as adhering to ecological principles across all its components. Keywords: Abrasion, breakwater, green mussel, natural coastal protection
Studi Karakteristik Kuat Tekan Beton Geopolimer Berbahan Dasar Fly Ash Ashad, Hanafi; Rezky Putra, Muhammad; Utina, Toni
Jurnal Teknik Sipil Vol 30 No 3 (2023): Jurnal Teknik Sipil
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2023.30.3.6

Abstract

The use of concrete is generally used to make road pavement, building structures, foundations, roads, pedestrian bridges, parking structures, bases for fences/gates, and cement in brick or block walls, causing the demand for cement material to be increasingly high, building construction materials experts also conducted various research on concrete. One of the research carried out was on Geopolymer Concrete. Geopolymer concrete is a type of geosynthetic concrete that is made without using any portland cement as a binding agent, and as a substitute for portland cement, fly ash mixed with an alkali activator is used.Geopolymer concrete mix planning uses the weight comparison method for each concrete composition using a w/fa factor of 0.25. The test object is cylindrical in shape with an activator alkali ratio of Na2SiO3: NaOH (sodium silicate and sodium hydroxide) of 1/2, 2/2, 3/2, 4/2 and 5/2. Cylindrical specimens with a diameter of 10 cm and a height of 20 cm were tested for compressive strength at the age of 14 days and 28 days to see the development and comparison of each variation of the alkali activator mixture for the results of the concrete compressive strength values.The average compressive strength of Geopolymer concrete with an alkali activator composition ratio of 1/2 and 2/2 cannot be used as structural concrete because the concrete compressive strength test results are below 18 MPa and geopolymer concrete with an alkali activator composition ratio of 3/2 to 5/2 can be used as an alternative substitute for concrete. conventional because the results obtained have reached the minimum concrete compressive strength requirements for the structural concrete category, namely > 18 MPa. Keywords: Geopolymer Concrete, Alkali Activator, Fly Ash, Compressive Strength
Analysis of the Variability of Axial Bearing Capacity of Piles in Cohesionless Soil in the Development of Meyerhof Formula Krisnanto, Sugeng; Kabila, Merizka Putri; Amiruddin, Moch. Darril; Wijayadi, Septian; Adryan, Feby; Ikrimah, Ikrimah
Jurnal Teknik Sipil Vol 31 No 1 (2024): Jurnal Teknik Sipil - Edisi April
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2024.31.1.9

Abstract

Abstrak Rumus daya dukung pondasi tiang dari Meyerhof (1976) banyak digunakan di Indonesia. Sangat penting untuk mengkuantifikasi variabilitas dalam perancangan. Ini juga berarti sangat penting untuk mengkuantifikasi variabilitas daya dukung aksial tiang terhadap nilai N-SPT dalam rumus yang banyang digunakan seperti rumus Meyerhof (1976). Analisis untuk mengkuantifikasi variabilitas yang terkandung dalam rumus daya dukung aksial Meyerhof (1976) dilakukan dalam makalah ini. Dalam analisis, digunakan data dalam publikasi Meyerhof (1976). Hubungan antara probabilitas kegagalan dan faktor keamanan untuk rumus daya dukung formula dikuantifikasi. Dari studi ini didapatkan bahwa faktor keamanan untuk rumus daya dukung aksial ujung tiang adalah sebesar 1,54, 2,17, dan 1,35 untuk pondasi tiang pancang pada tanah pasir, pondasi tiang pancang pada lanau, dan pondasi tiang bor. Juga didapatkan bahwa faktor keamanan untuk rumus daya dukung aksial selimut tiang adalah sebesar 1,54 untuk tiang pancang di tanah pasir dan lanau, dan 1,14 untuk tiang bor. Kata-kata Kunci: Daya dukung aksial tiang, Rumus Meyerhof (1976), Probabilitas kegagalan, Faktor keamanan, Variabilitas daya dukung aksial tiang. Abstract Meyerhof (1976) formula for calculation of pile axial bearing capacity is quite familiar in Indonesia. It is essential to quantify the variability of soil in a design. This also means, it is essential to quantify the variability of axial pile bearing capacity versus N-SPT inherited in a commonly used formula like Meyerhof (1976) formula. An analysis to quantify the variability inherited in Meyerhof (1976) formula for calculation of pile axial bearing capacity was performed. The data in the publication of Meyerhof (1976) are used in the analysis. The relation between the probability of failure for pile and the factor of safety in terms of the axial bearing capacity formula was quantified. It was found that the factors of safety for formula of unit pile tip bearing capacity are 1.54, 2.17, and 1.35 for driven pile in sand, driven pile in silt, and bored pile in sand, respectively. Also, it was found that the factors of safety for formula of unit pile shaft bearing capacity are 1.54 and 1.14 for driven pile in sand and silt and bored pile in sand, respectively. Keywords: Axial pile bearing capacity, Meyerhof (1976) formula, Probability of failure, Factor of Safety, Variability of axial pile bearing capacity.

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