Results 131 to 140 of about 273 (162)
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Exploring the geochemical mechanism for the saturated permeability change of remolded loess
Engineering Geology, 2021Abstract Loess has been remolded as the foundation for various construction projects with a long period of history. However, the operation of loess construction engineering is affected by the continuous change of loess permeability during the seepage.
Panpan Xu, Hui Qian, Meng Guo
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Effects of bacterial activity on the saturated hydraulic conductivity of remolded loess
Engineering Geology, 2021Abstract Loess is widely used as a construction material in engineering projects on the Loess Plateau of China but is regarded as one of the most problematic soils due to water sensitivity. Hydraulic conductivity (K) is an essential parameter in assessment of water transfer in porous media.
Jinyi Qin, , Hui Qian
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Geoderma, 2021
Abstract Understanding the permeability law of remolded loess is important for engineering construction in the loess area. To gain insights into the changes of saturated permeability and microstructural evolution of remolded loess for different dry densities, the loess from the Chinese Loess Plateau was used as a test material and was remolded as ...
Panpan Xu, Hui Qian, Qiying Zhang
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Abstract Understanding the permeability law of remolded loess is important for engineering construction in the loess area. To gain insights into the changes of saturated permeability and microstructural evolution of remolded loess for different dry densities, the loess from the Chinese Loess Plateau was used as a test material and was remolded as ...
Panpan Xu, Hui Qian, Qiying Zhang
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Structural characterization of natural loess and remolded loess under triaxial tests
Engineering Geology, 2014This paper characterizes the microstructural evolution of saturated natural loess from a site in Jingyang, China, during triaxial test along two stress paths. For comparison, the same soil in remolded state is also characterized. Mercury intrusion porosimetry (MIP), scanning electron microscopy (SEM) and environmental scanning electron microscopy (ESEM)
Mingjing Jiang, Yujun Cui, Haijun Hu
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Exploring the saturated permeability of remolded loess under inorganic salt solution seepage
Engineering Geology, 2021Abstract The seepage of remolded loess with inorganic salt solutions can deteriorate its engineering properties. To gain insight into the mechanism responsible for changes in the permeability of remolded loess due to the invasion of inorganic pollutants, the saturated permeability tests were performed on remolded loess samples using deionized water ...
Panpan Xu, Hui Qian, Qiying Zhang
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Collapse behavior and microstructural alteration of remolded loess under graded wetting tests
Engineering Geology, 2018Abstract In the Loess Plateau of China, there is a long history of loess being remolded and compacted as a method to improve building foundations. However, low density remolded loess has been found to collapse upon wetting due to its metastable structure.
Huyuan Zhang
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Response mechanism of permeability change of remolded loess to seepage parameters
Journal of Hydrology, 2022Panpan Xu, Hui Qian, Qiying Zhang
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Thermal Conductivities of Remolded and Undisturbed Loess
Journal of Materials in Civil Engineering, 2019AbstractThe thermal conductivity of soil is an important parameter in many engineering problems involving heat transfer, such as in ground source heat pump systems and freeze-thaw prevention projec...
Zuo-lin Zhen +4 more
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The Comparation Study of Strength Properties for Intact Loess and Remolded Loess
Advanced Materials Research, 2013At present, the research is not enough for the correlation of structure and stress-strain characters in domestic.The paper aims how the change of water content and confining pressure influence the stress-strain characters of intact loess and remolded loess by consolidated drained triaxial shear test for the Shanxi loess.The results showed that: the ...
Kang Feng Yuan, Long Zhang, Hua Guo
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A Dynamic Constitutive Model of Saturated Remolded Loess
Key Engineering Materials, 2013A series of dynamic triaxial tests were performed to study a dynamic constitutive relationship of saturated remolded loess under cyclic loading. A new dynamic rational function constitutive model based on damping ratio was proposed. The model assumed the calculated damping ratio equaled to the measured damping ratio and the hysteresis curve was ...
Zheng Hua Xiao +3 more
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