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Dimitri Mahayana
Sekolah Teknik Elektro Dan Informatika, Institut Teknologi Bandung
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Journal : civil engineering journal

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Adaptive Real-Time Strain-Rate Control in CRS Consolidation Testing Using SARSA Reinforcement Learning Muhammad Fadhl 'Abbas; Hasbullah Nawir; Dimitri Mahayana; Erza Rismantojo; Dayu Apoji; M. Alifsyah Putra Nasution; Targhib Ibrahim
Civil Engineering Journal Vol. 12 No. 4 (2026): April
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2026-012-04-023

Abstract

This study presents a reinforcement-learning framework for real-time strain-rate control in Constant Rate of Strain (CRS) consolidation testing to hasten the testing process using the SARSA algorithm. The controller adaptively adjusts deformation rate based on evolving pore-pressure ratio, with a reward strategy designed to maintain an average pore-pressure ratio near 30% to ensure partially drained conditions consistent with CRS theory. Two normally consolidated clays with contrasting compressibility were modeled numerically using a 1-D CRS consolidation model to evaluate learning and testing performance. The results show that the SARSA agent autonomously learns soil-specific strain-rate policies and maintains smooth effective stress trajectories and stable pore-pressure ratio responses. Test duration reductions of 60-75% were achieved depending on soil type. The interpreted compression index (Cc) remains consistent with the baseline CRS values, confirming that reinforcement-learning-based strain-rate control can accelerate testing without compromising data integrity. The study demonstrates the feasibility of reinforcement learning for CRS testing and highlights practical potential for soil-responsive, adaptive strain-rate control. Current limitations include simulation-based evaluation, discretized action selection, and the need for multiple runs to achieve optimal convergence.
Co-Authors Abbas, Muhammad Fadhl Abdurrasyid, Abdurrasyid Ade Chandra Aditya Pradana, Aditya Agung Wahyu Setiawan Agus Nursikuwagus Akhmadi Surawijaya Amalia, Hayati Amalia, Hayati Ambarwari, Agus Anisa Herdiani Arief Ichwan Armein Z.R. Langi Arry Akhmad Arman Ayu Latifah Bryan Denov Budi Rahardjo Budi Sulistyo Carmadi Machbub Dayu Apoji Denny Hidayat Tri Nugroho Desti Madya Saputri Didik Fauzi Dakhlan Dwi Harinitha Emir Mauludi Husni Endang Darwati Erza Rismantojo, Erza Feisy Kambey, Feisy Firmansyah, Feri Hidayatullah Fitra Arifiansyah Hasbullah Nawir, Hasbullah Hasta Pratama Hikmawati, Erna Hurianti Vidyaningtyas Imelda Uli Vistalina Simanjuntak Ira Puspasari Johan, Meliana Christianti Komarudin, Agus Kridanto Surendro Kurniawan Nur Ramadhani Ledya Novamizanti Leni Fitriani, Leni M. Alifsyah Putra Nasution M. Octaviano Pratama Mohamad Idris Muhammad Fadhl 'Abbas Munggana, Wira Nasution, Muhammad Alifsyah Putra Nasy`an Taufiq Al Ghifari Nilam Fitriah Okyza Maherdy Parjuangan, Sabam Pranoto H. Rusmin Rusmin, Pranoto H. Rusmin Pranoto Hidaya Rusmin Radiant Victor Imbar Ratna Mayasari Reza Budiawan, Reza Ridha Muldina Negara Rinaldi Munir Rinaldi Munir Rinda Cahyana Rita Rismala Riza Ibnu Adam Rosmansyah, Yusep RUKMAN HERTADI Setia Juli Irzal Ismail Sulistyaningsih Sulistyaningsih Susanty, Meredita Susmini Indriani Targhib Ibrahim Tati Latifah Erawati Rajab Teguh Aryo Nugroho Toni Kusnandar Untari Novia Wisesty Wahyu Hidayat Yeni Sanovia Yoanes Bandung Yudi Setiawan Yulrio Brianorman Yusep Rosmansyah YUYUN SITI ROHMAH Zakaria, Hasballah Zidni, Hasan