Results 21 to 30 of about 30,141 (157)

Study of loess pore structure characteristics based on CT scanning

open access: yes地质科技通报, 2022
Porosity is one of the important characteristics reflecting the microstructure of loess and directly affects the physical and mechanical properties of loess, such as water sensitivity, permeability and strength.
Jia Zheng   +5 more
doaj   +2 more sources

Macroscopic and microscopic analysis of the effects of moisture content and dry density on the strength of loess [PDF]

open access: yesScience Progress
To clarify the impact of moisture content and dry density on the strength of loess, the remolded loess samples with different moisture content and dry density were prepared, and the influence of moisture content and dry density on loess strength was ...
Liangliang Bao, Feng Wei
doaj   +2 more sources

Experimental Study on the Effects of Freeze–Thaw Cycles on Strength and Microstructure of Xining Region Loess in China

open access: yesBuildings, 2022
Loess, a collapsible soil, is widely distributed in the Qinghai–Tibet Plateau in China. In the meantime, loess is a sustainable and green building material that is widely used in traditional residential buildings.
Banglong Xie   +4 more
doaj   +2 more sources

Deformation properties of remolded loess compacted via vertical vibration compaction method

open access: yesJournal of Traffic and Transportation Engineering (English Edition)
To investigate the deformation properties of remolded loess subgrade under long-term cyclic dynamic loading, remolded loess specimens compacted via vertical vibration compaction method were produced and some factors influencing elastic strain and ...
Jinshun Xue, Yuan Jia, Jiangtao Fan
exaly   +3 more sources

Experimental Study on the Influence of Soil Structure Index on Loess Permeability

open access: yesAdvances in Materials Science and Engineering, 2022
In order to study the effects of dry density and initial water content on the permeability characteristics of loess, the saturated permeability tests of undisturbed loess and remolded loess were carried out in Lanzhou New Area.
Feng Yue   +3 more
doaj   +2 more sources

Study of Macro- and Mesodamage of Remolded Loess under Alternating Dry and Wet Conditions in an Acid Rain Environment

open access: yesAdvances in Materials Science and Engineering, 2021
As a national development plan, ecological protection of the Yellow River Basin has attracted extensive social attention in recent years. Considering the influence of acid rain on the engineering characteristics of loess in this area, we investigated ...
Wanjun Ye, Yuntao Wu, Yang Bai
doaj   +2 more sources

Study on Filling Material Strength and Dam Failure Characteristics of Loess Dam

open access: yesApplied Sciences, 2023
In the Loess Plateau region, loess, as a widely distributed building material, is often used as a filling material for dams. When the water level reaches a certain height, the body of a dam is prone to shear failure due to the penetration of water.
Nengyuan Chen   +7 more
doaj   +2 more sources

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

open access: yesScientific 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   +4 more
doaj   +2 more sources

Microscopic Mechanism Affecting Shear Strength in Lignin-Treated Loess Samples

open access: yesAdvances in Materials Science and Engineering, 2019
In China, engineers have worked to create additional usable land for building construction by flattening the ridges of hills and filling in the adjacent valleys.
Wei Liu   +4 more
doaj   +2 more sources

Characteristics of structural loess strength and preliminary framework for joint strength formula

open access: yesWater Science and Engineering, 2014
The strength of structural loess consists of the shear strength and tensile strength. In this study, the stress path, the failure envelope of principal stress (Kf line), and the strength failure envelope of structurally intact loess and remolded loess ...
Rong-jian Li   +4 more
doaj   +2 more sources

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