Results 1 to 10 of about 9,919 (207)

Study on Fractal Characteristics of Mineral Particles in Undisturbed Loess and Lime-Treated Loess [PDF]

Materials, 2021
In order to explore the fractal characteristics of particle size distribution (PSD) of various minerals in loess and lime-treated loess, the Q4 undisturbed loess and lime-treated loess were studied. From the perspective of multi-scaled microstructure, the internal characteristics of loess were observed and the regularity statistics were carried out ...
Jiaxin, Shi Dong, Xiaojun Li
exaly   +4 more sources

A modified elastoplastic damage structural constitutive model of unsaturated Q3 undisturbed loess [PDF]

Scientific Reports
The weakening of loess structure under hydro-mechanical effect is an important reason for collapsible deformation of loess. Therefore, when establishing the constitutive model of unsaturated loess, it is necessary to consider the influence of loess ...
Jichao Zhang, Xiaolei Chong, Zhihua Yao, Yazhi Wei, Mingliang Liu   +4 more
doaj   +4 more sources

Analysis of Soil–Water Characteristic Curve and Microstructure of Undisturbed Loess

Applied Sciences (Switzerland)
Long-term irrigation promotes the infiltration of water in the thick, stratified loess layer, significantly raising the groundwater table and triggering a series of landslides in loess platform areas.
Zhiqiang Zhao, Jian Zhou
exaly   +4 more sources

Compression behavior and structure of undisturbed Q2 loess under wet-dry cycles

Soils and Foundations, 2022
In the Loess Plateau of China, the undisturbed Q2 loess is in a state of wet-dry cycles due to seasonal rainfall and groundwater level fluctuations. The root cause of large deformation and poor stability of engineering foundation caused by wet-dry cycles
Hu-Yuan Zhang
exaly   +4 more sources

Investigation of the mechanical strength and pore characteristics of undisturbed loess exposed to acid solutions

Results in Engineering
In order to gain a deeper understanding of the changes in pore characteristics of undisturbed loess under the influence of acid pollution and the underlying microscopic mechanisms, this study investigates the alterations in pore characteristics caused by
Pengli He, Mingyu Li, Jinjun Guo, Shixu Zhang   +3 more
exaly   +4 more sources

Infiltration Law of Water in Undisturbed Loess and Backfill [PDF]

Water (Switzerland), 2020
Loess has the characteristics of complex structure and reduced mechanical strength after encountering water. In Chinese loess areas, irrigation, water storage, and rainfall affect the stability of the original loess structure and cause damage to the foundation.
Xifeng Meng, Hongjian Liao, Jiwen Zhang
exaly   +2 more sources

Evaluation on Tensile Behavior Characteristics of Undisturbed Loess [PDF]

Energies, 2018
Tensile strength is one significant parameter involved in tensile fracture in soil mechanics. In this paper, a stress-controlled, uniaxial, direct-tension test apparatus was developed to investigate the tensile properties of soils.
Shixin He, Haibo Bai, Zhiwei Xu
doaj   +2 more sources

The structural evolution of undisturbed loess due to water infiltration

Scientific Reports
Loess structure is the physical key factor that determines its stability and consists of macro-pores, loose texture, and water sensitivity. The structural change characteristics and effects of the undisturbed loess before and after water infiltration are
Jianqi Zhuang, Jiaxu Kong, Yi Zhu, Jianbing Peng   +3 more
doaj   +3 more sources

Analysis of the Hydraulic Properties of Undisturbed Layered Loess in Northwest China [PDF]

Water (Switzerland), 2019
Extensive agricultural irrigation in the loess region of Northwest China has seriously damaged the local hydrogeological environment. To properly understand the hydrological processes and the hydraulic properties of the layered soil, the field soil column irrigation test, laboratory soil column infiltration test, and undisturbed soil sample hydraulic ...
Qinghua Guo, Fuchu Dai, Zhiqiang Zhao
exaly   +2 more sources

Experimental and Numerical Study on the Tensile Strength of an Undisturbed Loess Based on Unconfined Penetration Test

Buildings
The tensile strength of loess, a key mechanical parameter for crack-related failures, has not received much attention in previous research, with the literature demonstrating a lack of systematic studies.
Fei Liu
exaly   +3 more sources