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Journal articles on the topic 'Primary loess'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Luo, Yanbin, Jianxun Chen, Zhou Shi, Juzhu Li, and Weiwei Liu. "Mechanical characteristics of primary support of large span loess highway tunnel: A case study in Shaanxi Province, Loess Plateau, NW China primary." Tunnelling and Underground Space Technology 104 (October 2020): 103532. http://dx.doi.org/10.1016/j.tust.2020.103532.

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2

Li, Jinhua, Songwei Zhao, Xiong Wang, et al. "Experimental Study on Consolidation Characteristics of Compacted Loess." Advances in Civil Engineering 2021 (June 5, 2021): 1–12. http://dx.doi.org/10.1155/2021/6687858.

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The prediction of foundation settlement is an important topic in loess filling engineering. Based on a filled foundation in Yan’an, China, this study explores the consolidation characteristics of compacted loess with different compaction energy and consolidation pressure through consolidation tests, analyzes the strain-time curve and refines the curve within 2 h, separates the primary and secondary consolidations, and obtains the critical time point between the primary and secondary consolidations. Deformation rate S t ′ and cumulative deformation St were introduced to analyze the S t ′ − St c

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3

Zhang, Zherui, Xinshuo Wang, Zuoyi Wang, et al. "Primary Study on Influence of Conventional Hydrochemical Components on Suspension of Endogenous Fine Loess Particles in Groundwater over Loess Regions." Applied Sciences 14, no. 19 (2024): 8809. http://dx.doi.org/10.3390/app14198809.

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To ascertain the effects of conventional hydrochemical components on the presence of endogenous fine loess particles (EFLPs) in groundwater over loess regions, Na+, NO3− and Cu2+, as conventional hydrochemical components, were employed in batch tests with EFLPs from a typical loess as aquifer media in Guanzhong Plain, China. The results showed that EFLPs had high zeta potential (ζ) and remained suspended over 40 h, indicating their good dispersity and potential to be suspended in groundwater. ζ was employed to replace electrostatic repulsion in the DLVO equation to determine the critical coagu

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4

GARCÍA, R., M. D. PETIT-DOMÍNGUEZ, M. I. RUCANDIO, and J. A. GONZÁLEZ. "Provenance of loess from the Spanish central region: chemometric interpretation." Geological Magazine 148, no. 3 (2010): 481–91. http://dx.doi.org/10.1017/s0016756810000889.

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AbstractIn this work our purposes are (1) geochemical characterization of loess (‘primary loess’ or ‘true loess’ and ‘secondary loess’ or ‘loess-like deposits’) located in the centre of the Iberian Peninsula, (2) systematic study of element behaviour during pedogenesis and (3) evaluation of the suitability of using the geochemistry of loess to establish the average composition of these discontinuous aeolian sedimentary covers in central Spain. Several analyses were carried out on the bulk sample and on the sandy and clay fractions (mineralogical composition by X-ray diffraction, mineralogical

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5

Su, Zhong Ming. "Analysis of Influence to Primary Support Forces by Stress Release in Loess Tunnel." Advanced Materials Research 859 (December 2013): 153–56. http://dx.doi.org/10.4028/www.scientific.net/amr.859.153.

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Based on a certain loess tunnel in Kelan-Linxian Expressway in Shanxi province, the influence to primary support forces by different stress release is analyzed by the Ansys FE software in the step method excavation. The analysis results can reasonably reflect the actual case of primary support forces, and can offer related reference to the selection of reasonable design parameters for primary support.

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6

Liu, X., T. Liu, T. Xu, C. Liu, and M. Chen. "The Chinese loess in Xifeng, I. The primary study on magnetostratigraphy of a loess profile in Xifeng area, Gansu province." Geophysical Journal International 92, no. 2 (1988): 345–48. http://dx.doi.org/10.1111/j.1365-246x.1988.tb01146.x.

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7

Milev, Nikolay, and Ivailo Ivanov. "Studying the mechanical behavior of loess-cement mixtures and adopting a cement-soil cushion (CSC) as a shallow ground improvement solution for foundations laying on collapsible soils." Engineering Geology and Hydrogeology 38, no. 1 (2024): 17–36. http://dx.doi.org/10.52321/igh.38.1.17.

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In the context of Bulgaria's expanding construction sector, the northern region of the Danube Plain has encountered challenges associated with the subsidence of loess soils upon saturation, characterized by rapid settlement and self-compaction – also known as “collapse”. This phenomenon poses significant risks to construction projects, prompting extensive research into its causes and prevention. One widely adopted method for stabilizing loess soil foundations in construction is the use of cement-soil cushions (CSC). This study's primary objective is to explore and select an effective technolog

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8

Li, Gaojun, Jun Chen, and Yang Chen. "Primary and secondary carbonate in Chinese loess discriminated by trace element composition." Geochimica et Cosmochimica Acta 103 (February 2013): 26–35. http://dx.doi.org/10.1016/j.gca.2012.10.049.

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9

Liu, Zhen, Fengyin Liu, Fuli Ma, et al. "Collapsibility, composition, and microstructure of loess in China." Canadian Geotechnical Journal 53, no. 4 (2016): 673–86. http://dx.doi.org/10.1139/cgj-2015-0285.

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The collapse potential, mineralogy, microstructure, and particle morphology of a loess from the Loess Plateau, China, were characterized by double oedometer testing, X-ray diffraction, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and image analysis to elucidate the origin of its collapse behavior. Results show that the loess is highly collapsible with a maximum collapse index of 6.7% at a vertical stress of ∼200 kPa. The deposit contains both nonclay (i.e., quartz, albite, muscovite, and calcite) and clay (i.e., two chlorites) minerals. Microstructural, chemical, and

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10

Shao, Mingyu, Muhammad Adnan, Liankai Zhang, Pengyu Liu, Jianhua Cao, and Xiaoqun Qin. "Carbonate Mineral Dissolution and Its Carbon Sink Effect in Chinese Loess." Land 12, no. 1 (2022): 133. http://dx.doi.org/10.3390/land12010133.

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The relationship between the source and sink of atmospheric CO2 has always been a widely discussed issue in global climate change research. Recent studies revealed that the chemical weathering of carbonate rocks contributed to 1/3 (~0.5 Pg C/yr) of the missing carbon sinks (MCS) globally, and there are still 2/3 of MCS (~0.5 Pg C/yr) that need to be explored. As one of the main overburdened parts of the earth, loess is one of the important driving factors for atmospheric CO2 consumption. Here, we elaborated on the dissolution process and the carbon sink effect from carbonate and silicate miner

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11

Su, Zhongming, Jianxun Chen, and Yanbin Luo. "Mechanical Characteristic and Length Optimization of System Anchor in Loess Tunnel Based on Field Measurement and Analytical Solution." Mathematical Problems in Engineering 2021 (August 2, 2021): 1–11. http://dx.doi.org/10.1155/2021/5582041.

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In this paper, field measurement is used to obtain the force of system anchor in its actual working condition and stress situation of system anchors in different parts of loess tunnel is analyzed based on field test results, indicating the reasons why values of measured axial force of system anchor are different in different parts of loess tunnel. Based on the displacement solution of Mindlin problem, this paper deduces the analytical solution to stress distribution of system anchors in the sidewall of loess tunnel under the pull-out force, analyzes the distribution forms and influencing facto

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12

He, Tong, Lianwen Liu, Yang Chen, Xuefen Sheng, and Junfeng Ji. "Plagioclase sub-species in Chinese loess deposits: Implications for dust source migration and past climate change." Quaternary Research 85, no. 1 (2016): 17–24. http://dx.doi.org/10.1016/j.yqres.2015.12.004.

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Plagioclase mineral sub-species in the Lingtai Section in central Chinese Loess Plateau are examined using Mineral Liberation Analyzer techniques, showing that loess and paleosol samples exhibit similar patterns in terms of plagioclase feldspar sub-species content. This suggests that both loess and paleosol units have preserved their primary Ca-bearing plagioclase compositions of loess source regions. Weighted average CaO (%) in Ca-bearing plagioclase lies within a narrow range and is equivalent to the average plagioclase composition for upper continental crust. This fact supports the hypothes

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13

Cai, Jing, and Bing Yin Dong. "Micro-Structure Study on Collapsibility Loess with SEM Method." Applied Mechanics and Materials 52-54 (March 2011): 1279–83. http://dx.doi.org/10.4028/www.scientific.net/amm.52-54.1279.

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To study the micro-structure of collapsibility loess, the triaxial shear test under pressure of 10MPa to 100MPa and consolidation test under 1000kPa, 2000kPa and 4000kPa were respectively used on collapsibility loess here to imitate the working condition of dynamic compaction. Micro-images of the soil samples in above tests and undisturbed soil samples were collected by SEM at 500 enlarge. The results of images analysis are that the flocculated structure is destroyed drastically under compaction; the macrovoids and large set of grains are destroyed and recombined with tamping energy’s increase

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14

Zhao, Fubo, Yiping Wu, Bellie Sivakumar, et al. "Climatic and hydrologic controls on net primary production in a semiarid loess watershed." Journal of Hydrology 568 (January 2019): 803–15. http://dx.doi.org/10.1016/j.jhydrol.2018.11.031.

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15

Ran, Guoliang, Yanpeng Zhu, Xiaohui Yang, Anping Huang, and Dong Chen. "Permeability Characteristics of Improved Loess and Prediction Method for Permeability Coefficient." Applied Sciences 14, no. 17 (2024): 8072. http://dx.doi.org/10.3390/app14178072.

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Due to its unique geotechnical properties, loess presents itself as a cost-effective and energy-efficient material for engineering construction, aiding in cost reduction and environmental sustainability. However, to meet engineering specifications, loess often requires enhancement. Evaluating its permeability properties holds significant importance for employing improved loess for construction materials in landfills and artificial water bodies. This study investigates the influence of dry densities, grain size characteristics, grain size distribution, and admixture contents and types on the pe

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16

Chen, Hao, Yanbin Luo, Jianxun Chen, et al. "Reasonable Support Parameters for Loess Tunnel Under Different Water Contents: A Case Study." Applied Sciences 15, no. 2 (2025): 885. https://doi.org/10.3390/app15020885.

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Due to the unique structural characteristics of loess, the strength of loess is significantly influenced by the water content. Therefore, different support parameters should be used for loess tunnels constructed in different water content strata. This paper takes the Fengshouling Tunnel as a case study, studying the reasonable primary support parameters under different water contents using the surrounding rock strength test, on-site monitoring, and numerical simulation software analysis. The research findings indicate that the strength of the surrounding rock is functionally related to its wat

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17

Porter, Stephen C. "Late Pleistocene Eolian Sediments Related to Pyroclastic Eruptions of Mauna Kea Volcano, Hawaii." Quaternary Research 47, no. 3 (1997): 261–76. http://dx.doi.org/10.1006/qres.1997.1892.

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Loess and dune sands that mantle volcanic rocks on the northwest flank of Mauna Kea volcano consist predominantly of fine-grained pyroclasts of the alkalic Laupahoehoe Volcanics produced by explosive eruptions. The loess is divided into lower and upper units, separated by a well-developed paleosol, while older and younger dune sands are separated by loess. Four interstratified tephra marker horizons aid in regional stratigraphic correlation. Radiocarbon ages of charcoal fragments within the loess, U-series ages of rhizoliths in the dune sand, and K/Ar ages and relative stratigraphic positions

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18

Li, Yuan Xun, Yan Peng Zhu, Shuai Hua Ye, and Zhong Mao He. "Analysis of Foundation Non-Uniform Settlement for Building on Collapsible Loess." Applied Mechanics and Materials 353-356 (August 2013): 213–16. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.213.

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The primary causes of non-uniform settlement for buildings on collapsible loess are large settlement of subsoil, local subsidence foundation, frost heaving of ground, infusion foundation, underground water level decrease and the influence of adjacent buildings and so on. According to the characteristics of the project, analysis the reasons of building that non-uniform settlement and fissure on the wall. Combine the method of reinforce the rectification for original building, put forward the method of reinforce the rectification which is applicable to the project. And put forward some suggestio

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19

Wu, Zhenxu, Chaoliang Ye, Benguo He, Fengxu Cao, and Tao Zhang. "Study on Engineering Properties and Mechanism of Loess Muck Grouting Materials." Buildings 14, no. 11 (2024): 3400. http://dx.doi.org/10.3390/buildings14113400.

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Shield tunneling generates a massive amount of muck, and achieving the on-site reuse of muck is an urgent need in the field of shield tunneling. This study, based on a section of the Xianyang diversion tunnel in a loess stratum, aims to optimize the mix ratios of loess muck grouting materials to meet specific performance requirements. Laboratory tests were conducted to analyze the effects of the bentonite content and water–solid ratio on the properties of grout. The engineering properties, cost, and environmental impact of the optimized loess muck grouting materials were compared with those of

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20

Su, Zhong Ming, Xiao Feng Wang, and Rui Liu. "Type Selection of Arches in Primary Support of Loess Tunnel with Small Interval under Shallow Buried & Unsymmetrical Pressure." Applied Mechanics and Materials 170-173 (May 2012): 1656–59. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.1656.

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The problem of arches selection in primary support of loess tunnel is one of the problems that are now focused on. Based on the two type support of gird and shaped steel, the plastic zone and internal forces are mainly analyzed, by means of numerical simulation, in the loess tunnels with small interval under shallow buried & unsymmetrical pressure. Analysis results indicate that the internal forces in the gird support is slightly smaller than that of the shaped steel support, and the plastic zones are almost the same in the two type support; so it is suggested that the grid support should

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21

LAGROIX, F., and S. BANERJEE. "The regional and temporal significance of primary aeolian magnetic fabrics preserved in Alaskan loess." Earth and Planetary Science Letters 225, no. 3-4 (2004): 379–95. http://dx.doi.org/10.1016/j.epsl.2004.07.003.

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22

Smalley, Ian. "Making the material: The formation of silt sized primary mineral particles for loess deposits." Quaternary Science Reviews 14, no. 7-8 (1995): 645–51. http://dx.doi.org/10.1016/0277-3791(95)00046-1.

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23

Kołodyńska-Gawrysiak, Renata. "Grain-size and microstructure of the loess from closed depressions in the Nałęczów Plateau (East Poland)." Polish Journal of Soil Science 52, no. 2 (2019): 295. http://dx.doi.org/10.17951/pjss.2019.52.2.295.

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<p>The investigation was conducted in the eastern part of the Nałęczów Plateau, a region of the Lublin Upland, in eastern Poland. The loess cover of this region was formed mainly during the last glaciation, and loess accumulation lasted until 15,000–12,000 BP. The undulating loess plateau with numerous oval-shaped closed depressions (CDs) is the main landform in the study area. Particle size distribution and SEM analyses were conducted for loess profiles under the bottoms and on the slopes of 4 CDs. Grain-size distribution characteristics as well as qualitative and quantitative micromorp

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24

Qi, Zhiyu, and Zhiqing Li. "The Influence of Overburden Stress and Molding Water Content on the Microstructure of Remolded Loess." Sustainability 15, no. 16 (2023): 12401. http://dx.doi.org/10.3390/su151612401.

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This study aims to reveal the mechanisms of the microstructural evolution of remolded loess under different molding water contents and overburden stresses. Utilizing L6 loess from Yan’an, remolded soil specimens were fabricated under various pressures and moisture contents, followed by conducting one-dimensional consolidation tests. The macroscopic porosity, pore size distribution curves (PSD), and microstructure of these remolded loess samples were examined. Experimental findings indicate that an increase in molding water content leads to an augmentation in macroscopic pore volume and elongat

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25

Deng, Yong, Jiangsheng Xie, and Shuguang Li. "Research and Application of Support Resistant Limiting Dampers in the Deep-Buried Large-Section Loess Tunnel." Advances in Civil Engineering 2020 (September 30, 2020): 1–12. http://dx.doi.org/10.1155/2020/8841703.

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The paper aims to solve the problem that the primary support of the deep-buried large-section loess tunnel of the Haolebaoji-Ji’an Railway was damaged due to excessive force. Based on indoor tests, on-site construction feedback, and monitoring measurement data, the surrounding rock deformation and structural forces with different support schemes were compared and analyzed. The engineering application methods and mechanism of the support resistant limiting damper (SRLD) technology were studied. The results show that for the deep-buried large-section loess tunnels, under the premise of ensuring

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26

Zhang, Simeng, Yong Zhang, Yumin Lv, Hao Liu, and Jiangtao Huo. "Research on Deformation Law of Loess Layer with Buried Pipeline under Earthquake." Journal of Physics: Conference Series 2449, no. 1 (2023): 012021. http://dx.doi.org/10.1088/1742-6596/2449/1/012021.

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Abstract Previous earthquake damage studies have shown that loess has strong seismic vulnerability under strong earthquakes, and the water pipelines buried in loess are prone to engineering disasters due to displacement around the soil. Therefore, it is necessary to study and analyze the deformation law of the loess layer with buried pipelines under earthquake. In this paper, based on the actual project of the water pipeline Hanjiang-to-Weihe River Water Diversion Project, using FLAC3D finite difference software, taking vertical dynamic displacement, dynamic stress, and dynamic acceleration as

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Chen, Shifeng, Qifei Zhang, Yaning Chen, et al. "Vegetation Change and Eco-Environmental Quality Evaluation in the Loess Plateau of China from 2000 to 2020." Remote Sensing 15, no. 2 (2023): 424. http://dx.doi.org/10.3390/rs15020424.

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Vegetation change and ecological quality of the Loess Plateau (LP) are directly related to ecological protection and high-quality development of the Yellow River Basin. Based on LP ecological zoning and multisource remote sensing data, we analyzed vegetation change and its relationship with climate, terrestrial water storage (TWS), and land use/cover change from 2000 to 2020, using the normalized difference vegetation index (NDVI), fraction of vegetation cover (FVC), and net primary productivity (NPP). And ecological environmental quality was evaluated based on the remote sensing ecological in

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28

Terzariol, Roberto. "Collapsible soils in Argentina: experiences and case histories." Soils and Rocks 48, no. 3 (2025): e2025007125. https://doi.org/10.28927/sr.2025.007125.

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Argentinean loessial soils are the main deposits of this kind of soil in South America, and cover an area of more than 600,000 km2. They are eolic soils that can preserve their original structure generated when they were deposited (primary loess) or being transported or altered in place (secondary loess or loessoid). Recent deposits are mainly primary, ML and CL-ML, whereas the older ones are similar to other unsaturated clayed and silty soils, CL and CH. Geotechnical behavior varies from collapsing soils, for primary loess, to overconsolidated by desiccation for the secondary loessoid deposit

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Jiang, Xueding, Wen Shen, and Xiaoyan Bai. "Response of net primary productivity to vegetation restoration in Chinese Loess Plateau during 1986-2015." PLOS ONE 14, no. 7 (2019): e0219270. http://dx.doi.org/10.1371/journal.pone.0219270.

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Jia, Xiaoxu, Baoni Xie, Ming’an Shao, and Chunlei Zhao. "Primary Productivity and Precipitation-Use Efficiency in Temperate Grassland in the Loess Plateau of China." PLOS ONE 10, no. 8 (2015): e0135490. http://dx.doi.org/10.1371/journal.pone.0135490.

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31

Hou, Xiaokun, Shengwen Qi, and Fangcui Liu. "Soil Water Retention and Pore Characteristics of Intact Loess Buried at Different Depths." Sustainability 15, no. 20 (2023): 14890. http://dx.doi.org/10.3390/su152014890.

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Surface water infiltration is a primary factor responsible for engineering challenges and geological disasters on the Loess Plateau of China (LPC). Due to the extensive groundwater in this region, surface water must pass through thick unsaturated zones to recharge the groundwater reservoirs. Exploring the unsaturated hydraulic characteristics of loess, especially at varying depths, may significantly contribute to disaster prevention and mitigation and the pursuit of sustainable development in the Loess Plateau. The soil-water characteristic curve (SWCC), intricately linked to the soil’s pore s

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Sun, Zhi Jie, and Zhong Ming Su. "Numerical Analysis of Reserving Core Soil with Annular Excavation Method Used in Loess Tunnel." Advanced Materials Research 1065-1069 (December 2014): 143–46. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.143.

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To research the deformation regularity of loess tunnel in reserving core soil with annular excavation method compared with other construction methods, 3D Numerical Simulation is applied and the loess tunnel of highway is taken as an example. The research results show that[1]：The deformation of surrounding rock affected by the area of core soil is small.The stress regularity of different support structure influence on the area of core soil is different. This is mainly reflected that the maximum pressure stress of primary support increases with the area of core soil’s increasing, but the minimum

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Lucke, Bernhard, Joel Roskin, Kim André Vanselow, et al. "Character, Rates, and Environmental Significance of Holocene Dust Accumulation in Archaeological Hilltop Ruins in the Southern Levant." Geosciences 9, no. 4 (2019): 190. http://dx.doi.org/10.3390/geosciences9040190.

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Loess accumulated in the Negev desert during the Pleistocene and primary and secondary loess remains cover large parts of the landscape. Holocene loess deposits are however absent. This could be due low accumulation rates, lack of preservation, and higher erosion rates in comparison to the Pleistocene. This study hypothesized that archaeological ruins preserve Holocene dust. We studied soils developed on archaeological hilltop ruins in the Negev and the Petra region and compared them with local soils, paleosols, geological outcrops, and current dust. Seven statistically modeled grain size end-

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Wang, Chao, Lili Han, Youjun He, Yu Zhang, and Maomao Zhang. "Analysis of Vegetation Restoration Potential and Its Influencing Factors on the Loess Plateau: Based on the Potential Realization Model and Spatial Dubin Model." Land 14, no. 1 (2025): 138. https://doi.org/10.3390/land14010138.

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Improvements in vegetation coverage are driven by both resource endowment conditions and policy behaviors. To accurately reflect the vegetation restoration effect after ecological policies, this study used the potential realization model to calculate the potential realization degree of vegetation restoration on the Loess Plateau and to assess the vegetation restoration effect after the Grain for Green Program from 2000 to 2020. Then, the influencing factors were explored using the spatial Dubin model. The results reveal that (1) the EVI value of the Loess Plateau in northern Shaanxi increased

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Li, Yue, Yougui Song, Kathryn E. Fitzsimmons, Hong Chang, Rustam Orozbaev, and Xinxin Li. "Eolian dust dispersal patterns since the last glacial period in eastern Central Asia: insights from a loess-paleosol sequence in the Ili Basin." Climate of the Past 14, no. 3 (2018): 271–86. http://dx.doi.org/10.5194/cp-14-271-2018.

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Abstract. The extensive loess deposits of the Eurasian mid-latitudes provide important terrestrial archives of Quaternary climatic change. As yet, however, loess records in Central Asia are poorly understood. Here we investigate the grain size and magnetic characteristics of loess from the Nilka (NLK) section in the Ili Basin of eastern Central Asia. Weak pedogenesis suggested by frequency-dependent magnetic susceptibility (χfd%) and magnetic susceptibility (MS) peaks in primary loess suggest that MS is more strongly influenced by allogenetic magnetic minerals than pedogenesis, and may therefo

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Berger, Glenn W. "Luminescence chronology of late Pleistocene loess-paleosol and tephra sequences near Fairbanks, Alaska." Quaternary Research 60, no. 1 (2003): 70–83. http://dx.doi.org/10.1016/s0033-5894(03)00060-7.

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AbstractThermoluminescence (TL) and infrared-stimulated luminescence (IRSL) sediment-dating methods have been applied to paleosol- and tephra-bearing loess sequences younger than marine oxygen isotope stage (MIS) 7 at three important sites. TL ages indicate the development of significant paleosols ∼75,000 and ∼30,000 yr ago in the loess sequence at the Gold Hill site. Relatively minor soil development occurred ∼70,000 and ∼48,000 yr ago. Like the ∼75,000-yr-old soil, the 30,000-yr-old soil is apparently of global extent, and consistent in timing with inferred warm intervals elsewhere (e.g., Gr

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Porter, Stephen C., Bernard Hallet, Xihao Wu, and Zhisheng An. "Dependence of Near-Surface Magnetic Susceptibility on Dust Accumulation Rate and Precipitation on the Chinese Loess Plateau." Quaternary Research 55, no. 3 (2001): 271–83. http://dx.doi.org/10.1006/qres.2001.2224.

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AbstractMagnetic susceptibility (MS) of surface sediment varies systematically across the Loess Plateau in central China, decreasing exponentially from >200×10−8 m3/kg at the northern margin of the Qinling Shan to ≤30×10−8 m3/kg near the southern margin of the Mu Us Desert. MS correlates highly with loess median grain size (r2=0.79), which decreases south-southeastward across the plateau. It also correlates with mean annual temperature (MAT) and mean annual precipitation (MAP) (r2=0.58 and 0.60, respectively), and with their product MAT×MAP (r2=0.83), which is considered a measure of potent

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Al-abdullah, Ali, Najla Al-hassan, and Mohammad Eid. "Study of the Strain-Stress Behavior of the loess Soil and Its Numerical Modeling by ABAQUS." Indian Journal of Structure Engineering 2, no. 1 (2022): 1–9. http://dx.doi.org/10.54105/ijse.a7573.052122.

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This research aims to conduct a laboratory study to clarify the behavior of creep in Loess soils with the change of moisture content and applied stress. Soil was brought from Joseh area (southwest of Homs city), and its main properties were determined, after that a series of tests (time dependent deformation) were carried out for the Loess soils within the unconfined compression test. The results showed that the change of moisture content and applied stress on sample have a significant effect on the properties of Creeping of Loess soils, and the deformations that occurred are instantaneous def

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Ali, Al-abdullah, Al-hassan Najla, and Eid Mohammad. "Study of the Strain-Stress Behavior of the loess Soil and Its Numerical Modeling by ABAQUS." Indian Journal of Structure Engineering (IJSE) 2, no. 1 (2022): 1–9. https://doi.org/10.54105/ijse.A7573.052122.

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<strong>Abstract: </strong>This research aims to conduct a laboratory study to clarify the behavior of creep in Loess soils with the change of moisture content and applied stress. Soil was brought from Joseh area (southwest of Homs city), and its main properties were determined, after that a series of tests (time dependent deformation) were carried out for the Loess soils within the unconfined compression test. The results showed that the change of moisture content and applied stress on sample have a significant effect on the properties of Creeping of Loess soils, and the deformations that occ

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Hadzi-Nikovic, Gordana. "The influence of the grain-size distribution and soil structure on the unsaturated shear strength of loess sediments in Belgrade, Central Serbia." Annales g?ologiques de la Peninsule balkanique, no. 70 (2009): 83–91. http://dx.doi.org/10.2298/gabp0970083h.

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There is a negative pore water pressure or matric suction in the zone above the ground water level in silty loess soil, which can be as deep as 5-10 m in the Belgrade area. This primary characteristic of unsaturated soil, i.e., matric suction, should be included in laboratory testing and geotechnical analyses. Direct shear or triaxial testing of unsaturated soil are very expensive and time-consuming and require specially modified equipment. Instead, the prediction of unsaturated shear strength using the soil water characteristic curve, SWCC, and the effective shear strength parameters c' and ?

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Meshcheryakova, O. A., R. N. Kurbanov, and V. E. Pavlov. "Reconstructions of Paleowind Directions in the Pleistocene: Evidence from the Anisotropy of Magnetic Susceptibility of the Loess–Paleosol Series of Tajikistan and the Azov Region." Физика земли 2023, no. 5 (2023): 47–61. http://dx.doi.org/10.31857/s000233372305006x.

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Abstract—The magnetic fabric of the reference Khonako-II (south Tajikistan), Beglitsa, and Chumbur-Kosa (Azov region) loess-paleosol sections was studied to reconstruct the paleowind directions during the Middle and Upper Pleistocene. The paleosols and loesses of the Khonako-II section represent a promising object for study of paleowinds. Our data indicate a prevailing ~ northwestward or ~northeastward wind directions during accumulation of the upper 40.8 m of the section. Thereby, a change from warm (pedocomplex 2) to cold (loess 2) epochs during the accumulation of the lower half of the stud

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Han, Hongzhu, Jianjun Bai, Gao Ma, et al. "Seasonal Responses of Net Primary Productivity of Vegetation to Phenological Dynamics in the Loess Plateau, China." Chinese Geographical Science 32, no. 2 (2022): 340–57. http://dx.doi.org/10.1007/s11769-022-1270-8.

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Fang, Liu, Yan Huimin, Gu Fengxue, Niu Zhongen, and Huang Mei. "Net Primary Productivity Increased on the Loess Plateau Following Implementation of the Grain to Green Program." Journal of Resources and Ecology 8, no. 4 (2017): 413–21. http://dx.doi.org/10.5814/j.issn.1674-764x.2017.04.014.

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Mu, Jun, and Jing Chen. "Practical Studies of Ecological School Design on China’s Loess Plateau." Applied Mechanics and Materials 174-177 (May 2012): 3176–80. http://dx.doi.org/10.4028/www.scientific.net/amm.174-177.3176.

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In terms of the poor conditions of China’s Loess Plateau region, the feasibility limited by budget and conventional resources for construction is the main challenge faced by ecologically design for local buildings. Aiming to explore a way towards an ecological architecture suited for this region, a primary school project is studied as a prototype. The methodology combining condition analyses, computer simulation experiments with TAS and field construction is involved with thermal design as the focus. Based on locally available materials and vernacular technology, a series of alternative techni

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Crouvi, Onn, Rivka Amit, Yehouda Enzel, Naomi Porat, and Amir Sandler. "Sand dunes as a major proximal dust source for late Pleistocene loess in the Negev Desert, Israel." Quaternary Research 70, no. 2 (2008): 275–82. http://dx.doi.org/10.1016/j.yqres.2008.04.011.

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AbstractGrain size analyses of three hilltop, primary eolian loess sequences in the Negev desert, southern Israel, show a bimodal grain-size distribution at 50–60 μm and 3–8 μm. Using analyses of mineralogy and OSL ages we demonstrate that the coarse mode is composed mostly of quartz grains and its relative magnitude increases regionally with time, suggesting an enhancement of a time-transgressive proximal dust source compared to a distal, Saharan fine-grain dust. The only proximal dust source for large amount of coarse silt quartz grains is the sands that advanced into Sinai and the Negev con

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Deng, Yuanjie, Lei Jia, Yajun Guo, et al. "Evaluation of the Ecological Effects of Ecological Restoration Programs: A Case Study of the Sloping Land Conversion Program on the Loess Plateau, China." International Journal of Environmental Research and Public Health 19, no. 13 (2022): 7841. http://dx.doi.org/10.3390/ijerph19137841.

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The Sloping Land Conversion Program (SLCP) is the largest ecological restoration program in the world. Evaluating the ecological effects of the SLCP not only provides a scientific basis for China to improve the SLCP but also provides a reference for other countries in the world to evaluate the ecological effects of ecological restoration programs being implemented or to be implemented. To this end, we took the Loess Plateau, the core area for the implementation of the SLCP, as an example and, based on multi-source remote sensing data and GIS technology, we conducted a comprehensive evaluation

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Xue, Xiao Hui, and Zhong Ming Su. "Analysis of the Mechanical Property of Collapse in Shallow-Buried Loess Tunnel under Unsymmetrical Pressure." Advanced Materials Research 645 (January 2013): 426–29. http://dx.doi.org/10.4028/www.scientific.net/amr.645.426.

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Based on selecting a tunnel collapse under typical conditions of the shallow-buried terrain under unsymmetrical pressure, analyzing the monitoring measurement date, using the software of finite element numerical simulation, the paper simulates the tunnel excavation in lengthwise, deduces the change laws of stress in primary support, the mechanical properties and the collapse mechanism.

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Li, Shuanhu, Bohan Zhao, Huimin Wu, Rongbiao Li, and Ping Wang. "Three Decades of Tillage Driven Topsoil Displacement and Soil Erosion Attenuation on Loess Plateau Slope Farmlands." Agriculture 15, no. 10 (2025): 1084. https://doi.org/10.3390/agriculture15101084.

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The slope lands of the Loess Plateau represent a critical region impacted by soil erosion, which directly contributes to the globally recognized high sediment concentration in the Yellow River. However, the extent to which sloped farmland contributes to soil loss remains scientifically contentious. In this study, farmland with an initial slope gradient of 20° was selected for the experiment, and three decades of field monitoring data (1990s–2020s) and the Universal Soil Loss Equation (USLE) model were used for comparative calculation. The data indicated that the model-predicted soil loss rate

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Liu, Shijun, and Liang Xue. "The spatio-temporal heterogeneity of county-level economic development and primary drivers across the Loess Plateau, China." Journal of Geographical Sciences 31, no. 3 (2021): 423–36. http://dx.doi.org/10.1007/s11442-021-1851-y.

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Kupfer, John A., and Scott W. Kirsch. "HETEROGENEITY OF FOREST CHARACTERISTICS IN PRIMARY AND SECONDARY FOREST STANDS ON THE THIRD CHICKASAW LOESS BLUFF, TENNESSEE." Physical Geography 19, no. 1 (1998): 35–54. http://dx.doi.org/10.1080/02723646.1998.10642639.

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