Granular soils are widely distributed natural materials used extensively in infrastructure construction due to their high strength, easy availability, permeability, and compaction characteristics.

In coarse grained soils, where the grains are larger than 0.075 mm (or 75 µm), the engineering behaviour is influenced mainly by the relative proportions of the different sizes present, the shapes of the soil grains, and the density of packing. These soils are also called granular soils.

2024年12月1日 · This study specifically examines the influence of particle shape on the compression characteristics, monotonic shear response, shear strength properties, and critical state behavior of granular soils, as well as the mechanical behavior of soil-solid interfaces and stabilized earthen materials.

2023年12月15日 · Granular soils are extensively studied for their particle breakage mechanisms and widely used in foundation engineering. Understanding how particle breakage affects the mechanical response of granular soils is crucial for engineering design, …

A soil aggregate, or conglomerate of sand, silt, clay, and sometimes organic material, may be a variety of different shapes. Structure is important because it allows critical areas of open space, vital for water to move, roots to grow, and soil organisms.

2020年3月6日 · In this study, the distinct element method (DEM) was employed to numerically explore the mechanical responses of granular soils and to extract key components for an elastoplastic constitutive model for them.

2021年2月20日 · Granular Soils are one of three orders of strongly weathered clay-enriched soils (Granular, Oxidic, and Ultic Soils) that occur mainly in northern New Zealand. Granular Soils have increased illuvial clay and clay coatings in the subsoil.

Our current research topics include bio-inspired geotechnics for foundation and anchorage elements, site characterization, and soil penetration and excavation, fundamental aspects of granular material behavior such as the effect of particle shape and gradation on the deformation characteristics of soil, the stability and runout behavior of ...

2018年7月11日 · Granular material is widely distributed in nature and is especially relevant in the geotechnical engineering field; it includes landslide deposits, granular soil (fine-grained soil or coarse-grained soil), filling/construction material used for …

本文主要介绍颗粒物质的细观结构特点, 以 Rowe应力剪胀关系为例的宏--细观研究思路, 非线性、非弹性本构关系的细观推导, 宏观强度与颗粒摩擦系数的关系, 尺寸效应和相似关系等基础问题, 介绍了岩土颗粒力学的新进展, 介绍了常用的实验量测手段. 基于我们的经验, 提出了今后需要加强的几个方面：如分析颗粒离散元理论和计算细节; 开展理想实验来验证理论和计算结果; 结合迅速发展的高性能计算能力, 开展高科学置信度大规模计算. 目前, 岩土类颗粒物质的宏--细观研究尚处 …