Multiscale interactions of elastic anisotropy in unsaturated clayey rocks using a homogenization model

Acta Geotechnica, Journal Year: 2023, Volume and Issue: 18(5), P. 2289 - 2307

Published: Jan. 15, 2023

Language: Английский

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Experimental investigation on mechanical behavior, energy evolution and gas permeability of anisotropic phyllite subjected to triaxial compression and cyclic loading

Geomechanics for Energy and the Environment, Journal Year: 2023, Volume and Issue: 35, P. 100483 - 100483

Published: June 20, 2023

Language: Английский

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Evaluation of empirical and machine learning models for predicting shear wave velocity of granular soils based on laboratory element tests

Soil Dynamics and Earthquake Engineering, Journal Year: 2024, Volume and Issue: 183, P. 108805 - 108805

Published: June 28, 2024

Language: Английский

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Laboratory investigation on the influence of sedimentation state on small-strain shear modulus in marine layered soils

Soil Dynamics and Earthquake Engineering, Journal Year: 2025, Volume and Issue: 190, P. 109223 - 109223

Published: Jan. 21, 2025

Language: Английский

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Load–Settlement Modeling of Micropiled Rafts in Cohesive Soils Using an Artificial Intelligence Technique

Geosciences, Journal Year: 2025, Volume and Issue: 15(4), P. 120 - 120

Published: March 29, 2025

The traditional design of foundations in soft clay often relies on large-diameter piles, which, although effective, are costly and impractical for low- to medium-rise buildings. Micropiles have emerged as a cost-effective alternative, offering an efficient solution these challenges. To advance the adoption micropiles geotechnical practice, this study employs multi-objective genetic algorithm-based evolutionary polynomial regression (EPR-MOGA), hybrid artificial intelligence method, develop robust straightforward model predicting load–settlement response micropiled rafts cohesive soils under vertical loads. was created using extensive database comprising 458 data points derived from field tests, centrifuge experiments, laboratory studies, numerical simulations reported literature. This comprehensive covers wide range scenarios by varying key parameters within group, including their length, diameter, number, spacing, construction raft thickness. proposed EPR could deliver accurate predictions, providing practical approach applications. In addition, predictions support conclusion that pressure-grouted more than gravity-grouted ones enhancing performance rafts.

Language: Английский

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Evolution of cross-anisotropic behavior of clay under 3D stress conditions

Acta Geotechnica, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

Language: Английский

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Hydromechanical coupling in unsaturated clayey rocks with double porosity based on a multiscale homogenization procedure

Computers and Geotechnics, Journal Year: 2024, Volume and Issue: 171, P. 106380 - 106380

Published: April 29, 2024

Language: Английский

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Fabric anisotropy of granular soils and its dependency on grading and particles specifications

Acta Geotechnica, Journal Year: 2024, Volume and Issue: 19(11), P. 7619 - 7633

Published: June 19, 2024

Language: Английский

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Point loads on the surface of a transversely isotropic linear elastic half-space

Geotechnical Research, Journal Year: 2023, Volume and Issue: 10(2), P. 78 - 99

Published: March 27, 2023

General solutions for the displacements, strains and changes in stress a transversely isotropic linear elastic (TILE) half-space subject to point load were published 1998. They represent massive advance on nineteenth-century by Boussinesq, Cerruti others, which fully half-spaces. The 1998 loads at general depth below surface criticised being difficult. present paper deduces more accessible expressions special case of that are surface. This allows one clarification potential error original equations be identified avoided. With support from existing data geological materials, agreement is found with previous claim limit proposed 1970 shear moduli TILE material invalid. Corrected derived herein can basis calculating ground stresses movements due responses distributed loads, behaviours flexible foundations stiffnesses rigid footings.

Language: Английский

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Comparative Study of the Mechanical and Fracturing Behaviors of Shale from Different Gas Blocks in the Longmaxi Formation

ACS Omega, Journal Year: 2023, Volume and Issue: 8(49), P. 47012 - 47022

Published: Nov. 29, 2023

With the development of shale gas exploration and exploitation, mechanical failure characteristics have become one focuses. However, few studies considered differences in properties shales different blocks. In this study, effects bedding orientation on stress-strain curves, elastic modulus, Poisson's ratio, fracture morphology samples from Zhaotong block are analyzed by laboratory experiments, first. Then, a standard deviation method is used to characterize anisotropy degree fracturing shale. The ratio between Chongqing areas has been comparatively studied. Comparison results show that induced orientations demonstrates apparent regional characteristics. There significant obtained It indicates optimization engineering practices such as design hydraulic should consider influences blocks anisotropy.

Language: Английский

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