Results 51 to 60 of about 13,201 (296)
Failure mechanism of canal slopes of expansive soils considering action of wetting-drying cycles
Yantu gongcheng xuebao, 2019 The canal of expansive soils is in the state of wetting-drying cycle because of seasonal water level fluctuations, and its slope instability is easily induced.
CAI Zheng-yin 1, CHEN Hao 1,2, HUANG Ying-hao 1, ZHANG Chen 1
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Uranium storage mechanisms in wet-dry redox cycled sediments
Water Research, 2019 Biogeochemical redox processes that govern radionuclide mobility in sediments are highly sensitive to forcing by the water cycle. For example, episodic draining and intrusion of oxidants into reduced zones during dry seasons can create biogeochemical seasonal hotspots of enhanced and changed microbial activity, affect the redox status of minerals ...
Vincent Noël +4 more
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Damage to the Microstructure and Strength of Altered Granite under Wet–Dry Cycles [PDF]
Symmetry, 2018 This paper presents an analytical method for surrounding rocks in symmetrically shaped tunnels or roadways, with the symmetrical rise and fall of groundwater over a certain period. The influence of reservoir water level on wet–dry cycles were studied.
Xuxin Chen, Ping He, Zhe Qin
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Analysis of changes in volume and propagation of cracks in expansive soil due to changes in water content [PDF]
Revista Brasileira de Ciência do Solo, 2020 Expansive clay soils are a problem for agriculture and engineering because they are susceptible to change in volume due to seasonal variation in water content and temperature.
Silvio Romero de Melo Ferreira +4 more
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Chloride Ion Penetration into Cracked UHPFRC During Wetting-drying Cycles
, 2021 The subject of this paper is the extent to which, during wetting–drying cycles, chloride ions can penetrate Ultra-high-Performance Fibre Reinforced Cementitious Composites (UHPFRC) specimens subjected to combined mechanical and environmental load. Pre-cracking was obtained by subjecting prismatic specimens (40 × 40 × 60mm3) to four-point bending until ...
Ana Mafalda Matos +4 more
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Advances in Civil Engineering, 2021 In this study, to reveal the swelling and cracking characteristics of expansive soil subjected to cyclic drying-wetting of acid rain, the effects of acid rain and cyclic drying-wetting on the swelling deformation of expansive soil were studied by using ...
Jin Chang +6 more
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Freeze-drying modeling and monitoring using a new neuro-evolutive technique [PDF]
, 2012 This paper is focused on the design of a black-box model for the process of freeze-drying of pharmaceuticals. A new methodology based on a self-adaptive differential evolution scheme is combined with a back-propagation algorithm, as local search method ...
Fissore, Davide +4 more
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Experimental study on fully softened shear strength of expansive soil
Yantu gongcheng xuebao, 2020 The fully softened strength tests are carried out on the expansive soil samples from the Yangtze-Huaihe River Water Transfer Project. The fully softened strength indexes under different moisture contents and shear rates are discussed and analyzed.
ZHANG Kun-yong 1, 2, XU Na 2, CHEN Shu 3, ENAMULLAH Baba Kalan 2, XIE Yu-fei 4
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Case Studies in Construction Materials, 2023 The precise prediction of moisture variations within concrete is of great significance because various deterioration phenomena spanning corrosion to carbonation are induced by mass transfer facilitated by the presence of moisture.
Dheeraj Waghmare +3 more
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Effect of wet-dry cycles on shear strength of residual soil
Soils and Foundations, 2021 In order to investigate the relationship between the shear strength of residual soil and the number of repeated wet-dry cycles it underwent, the direct shear for different water content, different numbers of wet-dry cycles and different vertical stresses were examined.
Xu-tang Xu +6 more
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