Results 21 to 30 of about 9,919 (207)
Scientific Reports, 2023 Collapsibility and structural are two of the typical characteristics of natural undisturbed loess. It is of great significance to effectively simulate the collapsibility and structural of natural loess by preparing artificially loess.
Yuwei Zhang +4 more
doaj +1 more source
Pore distribution and classification of loess [PDF]
E3S Web of Conferences, 2021 The micro-pore characteristics in undisturbed loess have a profound influence on the permeability characteristics. Based on the results of permeability test, it is proved that the permeability coefficient of soil samples with the same porosity ratio is ...
Liu Qianqian, Wang Tiehang
doaj +1 more source
Experimental Study on the Influence of Soil Structure Index on Loess Permeability
Advances 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 +1 more source
Microstructure of unsaturated loess and its influence on strength characteristics
Scientific Reports, 2022 Previous studies have shown that structure has a significant influence on the mechanical deformation of unsaturated loess, but there is little published information focused on the influence mechanism of microstructure and mesostructure on the mechanical ...
Ya-zhi Wei +4 more
doaj +1 more source
Combination of Imaging Infrared Spectroscopy and X-ray Computed Microtomography for the Investigation of Bio-and Physicochemical processes in Structured Soils [PDF]
, 2020 Soil is a heterogeneous mixture of various organic and inorganic parent materials. Major soil functions are driven by their quality, quantity and spatial arrangement, resulting in soil structure.
Kögel-Knabner, Ingrid +4 more
core +1 more source
Comparative Study on Triaxial Test of Undisturbed and Remolded Loess
Mathematical Problems in Engineering, 2022 The difference of sample preparation methods will directly lead to the difference of the structure of the sample, and the mechanical response characteristics under external load will be different. Based on the conventional tests such as particle analysis, specific gravity, critical moisture content, and consolidation test of undisturbed loess from Xi ...
Shuo Zhang +3 more
openaire +1 more source
Geofluids, 2021 This paper investigates the influence of the structured property of loess on its compressive behaviour and proposes a new method for determining the preconsolidation pressure of structured loess soil.
Yali Xu +4 more
doaj +1 more source
Effect of freezing-thawing cycles on mechanical properties and microscopic mechanisms of loess
Shuiwen dizhi gongcheng dizhi, 2021 Qinghai is located in a permafrost region, which belongs to the continental climate zone of the the Qinghai-Tibet Plateau. At the same time, freezing-thawing cycles are common destructive factors for roadbeds and foundations.
Leqing LIU +4 more
doaj +1 more source
Applied Sciences, 2022 The uniformity of remolded loess samples prepared in the laboratory directly determines the reliability of various test results. While many tests have been designed to reflect the properties of undisturbed loess, there are obvious structural differences ...
Zhitao Hao +7 more
doaj +1 more source
Yantu gongcheng xuebao, 2020 The undisturbed loess has significant structural and dynamic vulnerability. Under the earthquake, the dynamic shearing action destroys the original structure of loess.
SHAO Shuai 1, SHAO Sheng-jun 1, 2, CHEN Pan 1, ZHANG Bo 1
doaj +1 more source