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Journal : civil engineering journal

Pullout Capacity of Small-Scale Jack-Like Ground Anchor in Sand with Various Relative Density Dian Eksana Wibowo; Yusep Muslih Purwana; Bambang Setiawan; Galuh Chrismaningwang
Civil Engineering Journal Vol. 12 No. 5 (2026): May
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2026-012-05-018

Abstract

The pullout behavior of ground anchors in sand is governed by inter-particle friction and mechanical interlocking; however, conventional designs often fail to fully mobilize the surrounding failure zone, resulting in limited uplift capacity. To address this limitation, a jack-like ground anchor was developed, incorporating mechanically expandable wings to increase the soil–anchor contact area and enhance shear resistance. Laboratory pullout tests were conducted in a cylindrical steel tank to investigate the influence of relative density (Dr = 27%, 50%, 80%), embedment depth (H = 0.50–1.00 m), and wing opening angle (0°–75°) on the anchor’s performance. Test results interpreted using the Mazurkiewicz method revealed that increasing wing expansion and soil density substantially improved pullout resistance. In medium-dense sand, capacity increased by up to 250%, and in dense sand, up to 220%, depending on embedment depth. At the deepest embedment and densest condition, capacity increased from 6 kN (closed) to 16 kN (fully opened). These findings confirm that integrating geometric adaptability with soil density optimization significantly enhances uplift efficiency, providing a novel and practical solution for improving anchor performance in granular soils.
Co-Authors A.A. Ketut Agung Cahyawan W Agus Prijadi Saido Alfredh Kanggunum Ary Setyawan Ary Setyawan Bambang Setiawan Bambang Setiawan Bambang Setiawan Bambang Setiawan Bambang Setiawan Bambang Setiawan Bambang Setiawan Bambang Setiawan Bambang Setyawan Brilliant Bagaskara Budhi Sulistyanto Cahyo Agung Saputra Chrismaningwang, Galuh Damarhadi, Prayogo Darsono Darsono Deni Hidayat Dewi, Rahma Kusuma Dewi, Rahma Kusuma Dian Eksana Wibowo Djarwanti, Noegroho Djarwanti, Noegroho Djarwati, Noegroho Elok Fajar Sagita Florentina Pungky Pramesti Galuh Chrismaningwang Galuh Chrismaningwang Galuh Chrismaningwang Galuh Crismaningwang Habib Abduljabar Waskito Hamid Nikraz, Hamid Hanif Yuniarta Harya Dananjaya I B Hendrik Prama Herfin Ardita Prastiwi Heru Pujianto Inneke Widyasari Lailaningrum, Shita Rosita M Kalworai, Mahmood Mahmood M Kalworai Majid, Rensia Erlyana Masanggun Velentina Mohmed Alshekh A. M. Hmade1, Mohmed Alshekh Muhammad Iqbal Muhammad Nurdin Muhammad Saleh Nasution Nasrulloh Nasrulloh Nasrulloh Nasrulloh Nasution, Muhammad Saleh Niken Silmi Surjandari Niken Silmi Surjandari Niken Silmi Surjandari Niken Silmi Surjandari Noegroho Djarwanti Noegroho Djarwanti Noegroho Djarwati Nomleni, Ida Agustin Nor Fata Yunashirson Nurfauziyah, Imtinan Prama, Hendrik Prastiwi, Herfin Ardita Prayogo Damarhadi Pujianto, Heru Purnomo, M Toni Agus Raden Harya Danajaya Raden Harya Dananjaya Raden Harya Dananjaya Raden Harya Dananjaya Raden Harya Dananjaya Raden Harya Dananjaya H.I Raden Harya Dananjaya, Raden Harya Raden Harya Danjanjaya Hesti Indra Ramadhan Al Mahdi Jibril Ramadhan Al Mahdi Jibril, Ramadhan Ramdhani, Martha Ramzi Yahya Rensia Erlyana Majid Reza Satria Warman Rizali, Muhammad Adi Ibrahim Sagita, Elok Fajar Saido, Agus Prijadi Saputro, Cahyo Dwi Saputro, Cahyo Dwi Setianto, Thomas Edi Shita Rosita Lailaningrum Sholihin As’ad Sinta Nur Rizqi Listanti Siti Nurlita Fitri Siti Nurlita Fitri Siti Nurlita Fitri Siti Nurlita Fitri Suhaemi, Muhammad Sulistyanto, Budhi Syafii Syafii Thomas Edi Setianto Unwanus Sa'adah Utomo, Prasetyo Widhy Velentina, Masanggun Wahyudianto, Kurniadi Warman, Reza Satria Waskito, Habib Abduljabar Yahya, Ramzi Yasir, Farid Yuniarta, Hanif Yusuf Cahyo Nogroho