PSI - Issue 70

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ScienceDirect

Procedia Structural Integrity 70 (2025) 175–182

Structural Integrity and Interactions of Materials in Civil Engineering Structures (SIIMCES-2025) Numerical Analysis of Buried Plate Anchors in Two-Layered Soil Ashutosh Kumar a , Md Irfan Ansari a, *, Mani Bhushan a , Sanjeev Kumar a , Abhishek Kumar a , Shashikant Kumar b

a Department of Civil Engineering, Government Engineering College Khagaria, Bihar, India b Department of Civil Engineering, Muzaffarpur Institute of Technology, Muzaffarpur, Bihar, India

Abstract Anchor plates are commonly used to enhance the uplift performance of foundations in various geotechnical engineering structures such as buried pipelines, transmission towers, offshore structures, tall chimneys, suspension bridges, retaining wall, etc. This study investigates the performance of square plate anchors embedded in single and two layered cohesionless soil strata through numerical analysis. To achieve this, a series of numerical model with varied embedment depths (i.e., H/B = 1, 2, and 3) embedded in single and two layered soil were performed. The results indicated that the performance of the square plate anchors significantly increases on increasing the embedment depth. Additionally, the uplift capacity factor for loose soil layered over dense soil layered found to be 185.19, 238.56, and 411.97 whereas 164.10, 208.74, and 348.84 for dense soil layered over loose soil layered corresponding to H/B of 1, 2, and 3. However, the uplift capacity factor “F q ”, for two -layered soil configuration falls within the range of values obtained for single-layered loose and dense soil at the respective embedment depths. Furthermore, the ultimate uplift capacity of an anchor plate is highly dependent on the relative strengths of the two-layered soil configuration. The numerical model was well validated against existing experimental results, ensuring its ability to accurately capture the behaviour of square anchor plates embedded in single and two layered soil configurations. © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of International Conference on Structural Integrity Organizers

Keywords: Plate Anchors; FEM; Two-layered Soil; Uplift Capacity Factor; Embedment Depth

* Corresponding author. +91-9570810722 E-mail address: mdirfan@geckhagaria.org.in

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of International Conference on Structural Integrity Organizers 10.1016/j.prostr.2025.07.041