Results 1 to 10 of about 4,456 (234)

Effect of stress path on the mechanical properties of calcareous sand

open access: yesUnderground Space (China), 2023
Calcareous sand is widely observed in the foundation of off-shore infrastructure. Although a lot of research has been carried out on the mechanical properties of calcareous sand, study into the influence of the stress–strain path on the mechanical ...
Yongjie Wu, Houzhen Wei, Mei Yin
exaly   +3 more sources

One-dimensional dynamic compressive behavior of dry calcareous sand at high strain rates

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
Calcareous sand has distinct characteristics in comparison with silica sand, such as dynamic behavior at high strain rates (HSRs). This is closely related to pile driving, aircraft wheel loading and mining activities.
Jiagui Liu, Yaru Lv
exaly   +3 more sources

Particle shape analysis of calcareous sand based on digital images [PDF]

open access: yesScientific Reports
Particle geometric is a key parameter that defines the eometric attributes of calcareous sand particles and is intricately related to their mechanical traits, such as compression and shear.
Xiaobing Wei   +5 more
doaj   +2 more sources

Experimental study on the effects of water content on the compression characteristics and particle breakage of calcareous sand [PDF]

open access: yesScientific Reports
The particle breakage effect and compression characteristics of calcareous sand are related to the water content in the sand material. However, the effects of water content on the particle breakage and compression characteristics of calcareous sand have ...
Xiaoxuan Liu   +5 more
doaj   +2 more sources

Experimental study on thermal conductivity of calcareous sand

open access: yesYantu gongcheng xuebao, 2019
The thermal conductivity of calcareous sand in the South China Sea is measured under different conditions by the thermal probe method, and the effects of water content, dry density, temperature, particle size and other factors on the thermal conductivity
FU Hui-li 1, 2, MO Hong-yan 2, ZENG Zhao-tian 1,2, ZHENG Chuan 1, 2, XU Yun-shan 2
doaj   +3 more sources

Effect of Irrigation Regimes on Productivity and Water Utilization Efficiency of Three Oil Olive Varieties Under Drip Irrigation System. [PDF]

open access: yesJournal of Soil Sciences and Agricultural Engineering, 2016
A field experiment was conducted over a period of two successive growing seasons 2011and 2012 on 14 years old olive trees cultivated in sandy soil located at El-Bostan area in Ali Mubark experimental farm at south Tahrir region to investigate the effect ...
H. El-Zaher, M. attia, A. Abd El-All
doaj   +1 more source

EFFECT OF MAGNESIUM, FARMYERD MANURE AND MINERAL FERTILIZERS ON YIELD, YIELD COMPONANETS AND NUTRIENT CONTENTS OF SOME FLAX GENOTYPES ON SANDY SOILS. [PDF]

open access: yesJournal of Soil Sciences and Agricultural Engineering, 2002
Two field experiments were conducted during 200012001 and 200112002 growing seasons on sandy soil at lsmalia Agric. Res. Station to study the effect of magnesium (0,100 and 200ppm) as a foliar spray, Farmyard manure and mineral fertilization on yield,
A.M.A. EI-Azouni, SH. M. Abd EI-Rasoul
doaj   +1 more source

Study on the Adsorption Mechanism of Graphene Oxide by Calcareous Sand in South China Sea

open access: yesAdsorption Science & Technology, 2021
To remove graphene oxide from wastewater, we used batch experiments with calcareous sand to recover GO. The adsorption properties and mechanisms of GO by calcareous sand were investigated by different characterization techniques.
Beifeng Lv   +5 more
doaj   +1 more source

Dynamic strength of temperature-controlled MICP-treated calcareous sand

open access: yesYantu gongcheng xuebao, 2021
A series of undrained cyclic triaxial tests are carried out for calcareous sand treated by temperature-controlled MICP (microbially induced calcium carbonate precipitation) technology, and the dynamic strength characteristics of MICP-treated calcareous ...
XIAO Peng 1, 2, 3, LIU Han-long 1, 2, ZHANG Yu 1, 2, JIANG Xiang 1, 2, LI Chi 4, CHU Jian 5, XIAO Yang 1, 2,
doaj   +1 more source

Critical Dynamic Stress and Cumulative Plastic Deformation of Calcareous Sand Filler Based on Shakedown Theory

open access: yesJournal of Marine Science and Engineering, 2023
Calcareous sand is a special marine soil rich in calcium carbonate minerals, characterized by brittle particles. It is, therefore, widely used as a filling material in the construction of islands and reefs.
Kangyu Wang   +4 more
doaj   +1 more source

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