Volume 11, Issue 2 (12-2025)
KJES 2025, 11(2): 366-394 |
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Pegah E. Formulation of a largely theoretical approach for inferring anisotropic drained elastic stiffnesses in saturated granular soils from undrained features. KJES 2025; 11 (2) :366-394
URL: http://gnf.khu.ac.ir/article-1-2960-en.html
URL: http://gnf.khu.ac.ir/article-1-2960-en.html
Kharazmi University , e.pegah@khu.ac.ir
Abstract: (494 Views)
The anisotropic elastic stiffnesses of granular soil sediments play an important role in analyzing many geotechnical and geological engineering problems. In this study, the feasibility of calculating drained elastic stiffnesses in saturated granular soils based on undrained features was investigated. By assuming cross-anisotropy in granular soils, a set of equations from the theory of elasticity was extracted from the literature and then combined with an experimentally developed relationship in this study to establish a link between drained and undrained parameters. Subsequently, a novel approach was proposed for computing the drained anisotropic Young’s moduli from two anisotropic components of the shear modulus and the vertical component of the Young’s modulus under undrained conditions. To evaluate the accuracy and reliability of the proposed approach, data related to anisotropic elastic parameters from 46 laboratory tests conducted on seven different soil specimens representing three types of sand from various sites worldwide were compiled from the literature. The drained anisotropic Young’s moduli for each test were then calculated using the proposed method and compared with directly measured values. The results showed a strong agreement between the calculated and measured moduli, confirming the validity and efficiency of the developed approach. The findings of this study can serve as a reliable basis for the rational and cost-effective characterization of anisotropic elastic stiffnesses in saturated granular soils using nondestructive seismic testing techniques.
Keywords: Saturated granular soils, Cross-anisotropy, Drained elastic stiffness, Undrained elastic features, Seismic waves velocity, Nondestructive seismic methods.
Type of Study: Original Research |
Subject:
Geophysics
Received: 2025/10/13 | Accepted: 2025/12/20 | Published: 2025/12/31
Received: 2025/10/13 | Accepted: 2025/12/20 | Published: 2025/12/31
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