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All Journal Jurnal Konstruksia Journal of Advanced Civil and Environmental Engineering RACIC : Rab Construction Research AGREGAT Jurnal Aplikasi Teknik Sipil Journal of Civil Engineering Science & Technology (CI-TECH) Jurnal Konstruksi Advance Sustainable Science, Engineering and Technology (ASSET) Media Konstruksi : Jurnal Ilmiah Teknik Sipil
Himatul Farichah
Teknik Sipil, Fakultas Teknik Dan Sains, Universitas Pembangunan Nasional Veteran Jawa Timur
Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Transportation

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The Effect of Ecentric Load on The Carrying Capacity Rectangular Foundation on Clay Querida Addisty Prasetyo; Adinda Misela; Miladatul Khofifah; Apta Kania Damayanti; Himatul Farichah
Journal of Civil Engineering Science and Technology (CI-TECH) Vol. 3 No. 2 (2022): October 2022
Publisher : PROGRAM STUDI TEKNIK SIPIL - UPN "VETERAN" JAWA TIMUR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ci-tech.v3i2.62

Abstract

TThe foundation is part of the structure that directly functions to transmit the load from the weight of the structure above it to the ground. In this study, a rectangular foundation is used which is placed on clay soil with 3 variations in dimensions and 7 variations in eccentricity loading. This data will be used in finding the ultimate bearing capacity value. The purpose of this study was to determine the effect of eccentricity loads on the bearing capacity of rectangular foundations on clay soil types. The method used is the Meyerhof method (1963). The results obtained are the magnitude of the value of the bearing capacity of the foundation in each variation of its dimensions which is influenced by the eccentricity of the load. The conclusion of this study is that the bearing capacity of the foundation can be viewed from the coordinates of the axis of the foundation which is affected by the eccentricity of the load. The greater the eccentricity of the load received by the y-axis, the greater the value of the ultimate bearing capacity of the foundation. Meanwhile, the greater the eccentricity load received by the x-axis, the smaller the ultimate bearing capacity value.
Analisis Stabilitas Lereng dan Alternatif Penanganan Kelongsoran Studi Kasus Ruas Jalan Ir. H. Nursyirwan Ismail, Kota Samarinda Helmy Darjanto; Himatul Farichah; Rosy Lumintang
Jurnal Aplikasi Teknik Sipil Vol 19, No 3 (2021)
Publisher : Departemen Teknik Infrastruktur Sipil Institut Teknologi Sepuluh Nopember Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1695.21 KB) | DOI: 10.12962/j2579-891X.v19i3.8495

Abstract

Kelongsoran  terjadi  pada  ruas  jalan  Ir.  H.  Nursyirwan  Ismail,  Ring  Road  II,  kota  Sa- marinda, Kalimantan. Kelongsoran tersebut terjadi pada dua titik yang diselanjutnya akan disebut lereng 1 dan lereng 2. Tujuan dari penelitian ini adalah untuk menganalisa stabili- tas lereng dan alternatif penanganan kelongsoran menggunakan pile dan sheet pile. Data penyelidikan  tanah  digunakan  untuk  melakukan  analisa  pemodelan  kestabilan  lereng dengan metode Elemen Hingga pada program bantu Plaxis V.8.2. Hasil analisis perbaikan lereng menggunakan soldier mini pile 25x25, pada lereng 1 menghasilkan SF 2.04 dan de- formasi  26.17x10-3  m.  Sedangkan  pada  lereng  2,  didapatkan  SF  2.04  dan  deformasi 35.09x10-3  m.  Selanjutnya  untuk  perbaikan  menggunakan  flat  sheet  pile  concrete  (FCP) dengan tipe FCP-220-6S-A, pada lereng 1 menghasilkan SF 2.02 dan deformasi 28.35x10-3 m. Sedangkan untuk lereng 2, didapatkan SF 2.05 dan deformasi 37.01x10-3 m.
ANALISIS DAYA DUKUNG ULTIMIT FONDASI DANGKAL DENGAN KONDISI TANAH BERBUTIR HALUS PADA PROYEK PEMBANGUNAN GUDANG DI BEKASI Asyraf Ibrahim; Isnaniati Isnaniati; Himatul Farichah
AGREGAT Vol 8 No 1 (2023)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/ag.v8i1.17928

Abstract

Fondasi pada sebuah konstruksi bangunan merupakan hal yang sering dijadikan permasalahan pada pengerjaan sebuah konstruksi suatu bangunan. Jika fondasi tidak dapat menahan suatu konstruksi bangunan, maka fondasi akan runtuh, dan menyebabkan penurunan pada konstruksi bangunan. Pada penelitian ini lokasi penelitian terletak di Cibitung, Bekasi, Jawa Barat yang dimana kondisi tanah adalah tanah berbutir halus. Daya dukung ultimit merupakan batas maksimum kekuatan tanah yang tidak boleh dilampaui beban luar yang bekerja di atas tanah tersebut agar tidak terjadi keruntuhan geser tanahnya. Adanya beberapa parameter tanah yang mempengaruhi besarnya daya dukung ultimit fondasi dangkal (qult) diantaranya yaitu lebar atau diameter fondasi (B),  kedalaman fondasi dari permukaan tanah (Df), dan beban tanah di atas dasar fondasi (q) dimana ”q” dipengaruhi oleh letak muka air tanah (MAT). Penelitian ini bertujuan untuk menghitung besarnya nilai daya dukung ultimit (qult) dari variasi bentuk penampang, variasi lebar atau diameter fondasi (B), variasi kedalaman fondasi (Df), dan variasi muka air tanah dengan perhitungan menggunakan data SPT. Sebelum data SPT digunakan terlebih dahulu tanah berbutir halus di bawah MAT dengan nilai SPT > 15 harus dikoreksi terhadap MAT dan tegangan overburden. Dari hasil perhitungan kemudian dianalisa hasil  daya dukung ultimit (qult)  antar variasi parameter untuk fondasi bentuk persegi dan lingkaran. Hasil penelitian diperoleh qult bentuk penampang fondasi persegi dan lingkaran, pada MAT tepat di dasar fondasi sebesar 1074,046 kN/m2 untuk fondasi persegi, dan 1068,266 kN/m2 untuk fondasi lingkaran; pada MAT di bawah dasar fondasi sebesar 1040,57 kN/m2 untuk fondasi persegi, dan 1034,8  kN/m2 untuk fondasi lingkaran. Dari hasil perhitungan tampak daya dukung ultimit (qult)  dengan MAT di bawah dasar fondasi  diperoleh qult paling kecil, hal ini dikarenakan untuk mendapatkan nilai berat tanah di atas dasar fondasi (q) digunakan berat volume rata-rata (γavg).
Numerical Analysis of Soft Soil Improvement using Pile at Airport Construction Project Himatul Farichah; Dio Alif Hutama; Dian Purnamawati Solin
JACEE (Journal of Advanced Civil and Environmental Engineering) Vol 6, No 2 (2023): October
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/jacee.6.2.107-117

Abstract

Construction on the soft ground poses an excellent challenge for geotechnical engineers. Several engineering problems such as bearing capacity failure and differential settlement could occur either during or after the construction phase due to high compressibility and low shear strength. Nowadays, a number of soil improvement techniques are available to solve such problems. However, each method has its advantages and disadvantages. In this study, soil improvement analysis using pile were performed with three variations depths so called 12 m, 18 m, and 24 m from the ground level. A finite element simulation has been performed using PLAXIS 2D. The pile has been modeled as plate and Mohr-Coulomb model was used for soil model. The results show that the deeper the pile, the settlement will be decreasing. Moreover, the axial force and bending moment of the pile obtained from the output of PLAXIS 2D were also presented to assess the performance of the soil improvement technique.
Analisis Penyebab Kelongsoran Lereng JLS LOT 3 Menggunakan Metode Elemen Hingga Sofi Suhaimah; Yerry Kahaditu Firmansyah; Himatul Farichah
MEDIA KONSTRUKSI Vol. 10 No. 2 (2025)
Publisher : Jurusan Teknik Sipil, Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jmk.v10i2.129

Abstract

Pembangunan Jalur Lintas Selatan (JLS) Lot 3 Pantai Serang - Sumbersih, Blitar, Jawa Timur, terjadi pekerjaan galian yang membentuk sebuah lereng pada STA 1+050 - 1+150. Pada bulan Desember 2024 terjadi hujan yang cukup lebat memicu terjadinya longsor pada sisi kanan lereng. Kondisi geoteknik pada lereng berupa batu kapur sedikit kelanauan dengan nilai N-SPT 60, hal ini tidak sesuai dengan di lapangan yang terjadi longsor. Dilakukan analisis penyebab kelongsoran dengan menaikan tinggi muka air tanah setengah tinggi lereng dan setinggi lereng dengan faktor aman 2,22 dan 1,89 lebih besar dari 1,5. Dilakukan analisis  asumsi retakan dengan menurunkan nilai kohesi (c) menjadi 0-10. Didapatkan faktor aman dengan retakan yaitu 1,022 yang kurang dari 1,5 yang berarti lereng tidak stabil dan terjadi longsor. Dilakukan analisis stabilitas lereng dengan asumsi retakan dan menaikan muka air tanah setengah tinggi lereng dan setinggi lereng dengan faktor aman 1 dan 0,979. Faktor keamanan ini lebih mencerminkan kondisi longsor nyata di lapangan.
Analisis Produktivitas dan Biaya Operasional Alat Berat pada Pekerjaan Ereksi Rangka Utama Jembatan Bagor Ahmad Laudza Suari; Jovanda Rivansyah; Himatul Farichah
Jurnal Konstruksi Vol 23 No 1 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-1.2170

Abstract

This research aims to analyze heavy equipment productivity and estimate operational costs in the Bagor bridge replacement project. The methodology used includes collecting primary data through field observations to measure effective working hours and efficiency of heavy equipment, as well as secondary data which includes equipment specifications, number of tools, operational costs and work volume from related documents. The three types of heavy equipment analyzed are the Zaxis 200 Excavator, Zaxis 210 Excavator, Bomag BW 177 D-5 Vibro Roller, and Mitsubishi Fuso 6X4 Truck Trailer. The analysis results show that the productivity of each heavy equipment per day is 717.12 m³ for the Zaxis 200, 806.76 m³ for the Zaxis 210, 252.48 m³ for the Vibro Roller, and 149.99 m³ for the Truck Trailer. Total operational costs per day for all heavy equipment reach IDR 28,163,000. It is hoped that this research can provide recommendations for increasing the productivity of heavy equipment in bridge construction projects, so that projects can be completed more efficiently and effectively.
Pengaruh Penambahan Fly Ash Terhadap Nilai Indeks Plastisitas Tanah Lanau Berpasir di Jembatan Sine, Tulungagung Marco Dian Qinanta; Yerry Kahaditu Firmansyah; Himatul Farichah
Konstruksia Vol 17 No 2 (2026): Jurnal Konstruksia Vol 17 No. 2 Tahun 2026
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jk.17.2.11-18

Abstract

Pada pembangunan proyek jln Lot 6a, jenis material tanah yang dijadikan timbunan mengacu pada spesifikasi pekerjaan tanah 2016. Area jembatan sine merupakan salah satu lokasi yang kondisi tanahnya tidak memenuhi spesifikasi teknik yang ada, karena termasuk dalam klasifikasi jenis tanah A-7-5 menurut AASHTO dan MH (Lanau elastis dengan pasir) menurut U.S.C.S., maka dari itu diperlukan stabilitas terhadap tanah tersebut. Adapun stabilisasi yang digunakan yaitu dengan menambah fly ash kelas F kedalam tanah. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan fly ash terhadap nilai indeks plastisitas tanah lanau berpasir pada proyek pembangunan khususnya di area jembatan sine. Penambahan fly ash dilakukan dengan 3 variasi yaitu 15% (v1), 20% (v2), dan 25% (v3) dengan parameter pengujian diantaranya berat jenis (GS), batas cair (LL), batas plastis (PL), batas susut (SL), dan indeks plastisitas (PI). Hasil pengujian menunjukkan penurunan terbesar pada penambahan fly ash 25%(v3), dengan nilai pernurunan untuk berat jenis (GS) sebesar 19,33%, batas cair (LL) 13,20%, batas plastis (PL) 5,25%, batas susut (SL) 11,08%, serta indeks plastisitas (PI) 8,07%. Secara keseluruhan, penggunaan fly ash terbukti efektif dalam memperbaiki sifat fisis tanah lanau berpasir, sehingga berpotensi digunakan sebagai bahan stabilisasi alternatif untuk perbaikan tanah dasar (subgrade) pada proyek infrastruktur jalan. Kata kunci: fly ash, tanah lanau berpasir, sifat fisis tanah, stabilisasi tanah, pozzolan
PERBANDINGAN DAYA DUKUNG AKSIAL PONDASI BORED PILE BERDASARKAN METODE EMPIRIS DAN PEMODELAN SOFTWARE (STUDI KASUS: PROYEK JEMBATAN KUTOREJO) Dina Kurnia Shanty; Akhmad Wildan Mukhollad; Himatul Farichah
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.v11i1.7269

Abstract

Bridges are a critical component of infrastructure, facilitating connectivity between distinct regions and necessitating robust foundational structures to endure traffic loads and environmental conditions. The Kutorejo Bridge construction project employed bored pile foundations, selected for their capacity to support substantial loads with minimal vibration during construction. This study seeks to compare the axial bearing capacity of bored pile foundations utilizing the empirical method of L. Decourt (1996) and Geo5 numerical modeling. The analysis concentrates on the axial bearing capacity of a single pile through a quantitative approach and a comparative-descriptive method. Secondary data were derived from the Standard Penetration Test (SPT) results at two bore hole locations (BH-1 and BH-2), encompassing N-SPT values, soil types, and foundation dimensions. The calculation results indicated that the allowable bearing capacity calculated using the L. Decourt method was higher than the results from Geo5 modeling, with values of 3375,5 kN at BH-1 and 4019,8 kN at BH-2, compared to 2209 kN and 3163,9 kN from Geo5, respectively. This difference corresponds to an average discrepancy of 27.3%. Despite the variance in results, both methods yielded bearing capacity values exceeding the planned axial load of 1305,868 kN, thereby affirming the foundation's safety.
PENGARUH PENAMBAHAN INTEGRAL CRYSTALLINE WATERPROOFING TERHADAP KUAT TEKAN BETON FLY ASH F’C 35 MPA (STUDI KASUS : GEDUNG SERBAGUNA DI SURABAYA) Agistya Rachma Larasati; Arifah Ismi Ambiya; Himatul Farichah
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.v11i1.7274

Abstract

Concrete is one of the most widely used construction materials in infrastructure due to its high compressive strength and durability. However, concrete contains pores that significantly affect its permeability and compressive strength, which necessitates the use of admixtures or supplementary materials to enhance performance. To reduce water ingress, integral crystalline waterproofing admixtures can be incorporated. These admixtures penetrate the concrete matrix and form needle-like crystals within the pores, thereby improving impermeability and resistance to water penetration. This study aims to examine the effect of adding integral crystalline waterproofing admixture on the compressive strength of fly ash concrete with a target strength of f’c 35 MPa. The research focuses on a case study of the Multipurpose Building project in Surabaya, with comparisons made to fly ash concrete and conventional concrete. Cylindrical specimens measuring 150 mm × 300 mm were evaluated at curing ages of 7 and 14 days. The analysis utilized secondary data obtained from the project contractor, including the mix design and compressive strength test results. The findings indicate that at 7 days of curing, conventional concrete achieved the highest average compressive strength of 28.31 MPa. At 14 days, fly ash concrete with integral crystalline waterproofing demonstrated a significant improvement, reaching the highest average compressive strength of 40.82 MPa. These results highlight the variation in characteristics between different concrete mixes at different curing ages and confirm that the use of fly ash–based integral waterproofing has a substantial positive impact on compressive strength as the concrete matures.
Numerical Investigation of Consolidation Settlement for Runway Construction on Soft Soil: A Case Study in Sumbawa, Indonesia Himatul Farichah; Dio Alif Hutama; Vandi Alextrianto; Alfrendo Satyanaga; Fikri Ghifari
Advance Sustainable Science Engineering and Technology Vol. 7 No. 3 (2025): May - July
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i3.1805

Abstract

Runway construction on soft soil presents significant engineering challenges due to excessive settlement, which can affect structural stability and long-term performance of transportation infrastructure. This study investigates the settlement of a runway in Sumbawa, Indonesia using the Finite Element Method (FEM) in Plaxis 2D. The Hardening Soil Model was applied to realistically capture nonlinear soil behavior. Input parameters were derived from a series of N-SPT data and laboratory test results. The findings indicate that during the operational phase, the maximum and minimum settlement were 307.1 mm and 2.491x10-3 mm, respectively. Meanwhile, consolidation-induced settlement reached a maximum of 357.97 mm and a minimum of 10.6 mm. The distribution of total settlement along the runway varied depending on soil characteristics. Sections with predominantly clayey soil exhibited greater settlement, whereas areas with sandy soil experienced significantly lower settlement.
Co-Authors Adinda Misela Agistya Rachma Larasati Ahmad Laudza Suari Akhmad Wildan Mukhollad Alfrendo Satyanaga Apta Kania Damayanti Arifah Ismi Ambiya Aryaseta, Bagas Asyraf Ibrahim Aulia Dewi Fatikasari Dian Purnamawati Solin Dina Kurnia Shanty Dini Oktavia Dio Alif Hutama Fikri Ghifari Firmansyah, Yerry Kahaditu Helmy Darjanto Isnaniati isnaniati Jovanda Rivansyah Marco Dian Qinanta Miladatul Khofifah Querida Addisty Prasetyo Rosy Lumintang Sofi Suhaimah Vandi Alextrianto Yerry Kahaditu Firmansyah