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Microscopic mechanism of particle detachment in granular materials subjected to suffusion in anisotropic stress states

期刊: ACTA GEOTECHNICA, 2021; 16 (8)

Suffusion refers to a special form of internal erosion characterized by the selective erosion of the finest particles of a soil under the action of an......

The effects of unloading on drained cyclic behaviour of Sydney sand

期刊: ACTA GEOTECHNICA, 2021; 16 (9)

New excavation or tunnelling affects the stress state of soils in ground. The change of stress state due to excavation may affect the cyclic behaviour......

Two-layer material point method for modeling soil-water interaction in unsaturated soils and rainfall-induced slope failure

期刊: ACTA GEOTECHNICA, 2021; 16 (8)

A two-layer hydro-mechanically coupled material point method has been formulated in the framework of unsaturated soil mechanics. The method employs tw......

Numerical investigation of the mechanism of granular flow impact on rigid control structures

期刊: ACTA GEOTECHNICA, 2021; 16 (8)

Baffles and check-dam systems are often used as granular flow (rock avalanches, debris flows, etc.) control structures in regions prone to dangerous g......

The microscopic origin of K-0 on granular soils: the role of particle shape

期刊: ACTA GEOTECHNICA, 2021; 16 (7)

The at-rest coefficient of lateral pressure, K-0, is a critical macroscopic parameter for evaluating stress transmission in granular media for enginee......

Analytical solutions for the earth pressure of narrow cohesive backfill with retaining walls rotating about the top

期刊: ACTA GEOTECHNICA, 2021; 16 (9)

Currently, knowledge of the failure mechanisms of narrow backfills with retaining walls rotating about the top (RT mode) is still lacking which leads ......

Effect of sand grain size and boundary condition on the swelling behavior of bentonite-sand mixtures

期刊: ACTA GEOTECHNICA, 2021; 16 (9)

Deep geological repository is a favorable choice for the long-term disposal of nuclear wastes. Bentonite-sand mixtures have been proposed as the poten......

An empirical relation for parameter m(i) in the Hoek-Brown criterion of anisotropic intact rocks with consideration of the minor principal stress and stress-to-weak-plane angle

期刊: ACTA GEOTECHNICA, 2021; 16 (2)

The parameter m(i) accounts for the anisotropy of rock strength, and the accurate determination of m(i) is a primary requirement of the Hoek-Brown (H-......

Modification of poroelastic properties in granite by heating-cooling treatment

期刊: ACTA GEOTECHNICA, 2021; 16 (7)

Poroelastic properties play an essential role in interaction between deformation and fluid pressure change in porous rocks. These properties can be af......

Effect of waste rubber particles on the shear behaviour of bio-cemented calcareous sand

期刊: ACTA GEOTECHNICA, 2021; 16 (5)

Calcareous sand, a special type of sand commonly used for the construction of coastal engineering in tropical coasts, is usually required to be streng......

A 2D FDEM-based moisture diffusion-fracture coupling model for simulating soil desiccation cracking

期刊: ACTA GEOTECHNICA, 2021; 16 (8)

Based on the combined finite-discrete element method (FDEM), this paper presents a moisture diffusion-fracture coupling model to simulate soil desicca......

Accelerating consolidation of soft ground by aerosol injection technique: a field study

期刊: ACTA GEOTECHNICA, 2021; 16 (9)

We present an aerosol injection technique (AIT) to accelerate the consolidation of soft soils for ground improvement. We employ high-pressure aerosol ......

Applications of micropolar SPH in geomechanics

期刊: ACTA GEOTECHNICA, 2021; 16 (8)

A smoothed particle hydrodynamics code based on micropolar continua for geomaterials is developed for problems involving large deformation and shear s......

A novel vertical stress-controlled apparatus for studying suffusion along horizontal seepage through soils

期刊: ACTA GEOTECHNICA, 2021; 16 (7)

In this study, a novel apparatus was developed for the study of horizontal suffusion behavior of compacted soils under vertical stress. The apparatus ......

Design optimization of the soil nail wall-retaining pile-anchor cable supporting system in a large-scale deep foundation pit

期刊: ACTA GEOTECHNICA, 2021; 16 (7)

In the recent times, many studies have been devoted toward rectangular excavations but only a few studies have considered the "corner effect" in the o......

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