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Liquefaction characteristics of desaturated coral sand foundation with upper building [PDF]

open access: yesScientific Reports
Liquefaction of coral sand foundations under explosive loads poses significant risks to the safety of upper buildings. In this paper, a coral sand foundation and upper buildings are taken as the research objects, and dynamic tests of buildings in coral ...
Ren Zhongyue, Zhao Shichun, Chen Yumin
doaj   +4 more sources

Fractal Behavior of Coral Sand During Creep [PDF]

open access: yesFrontiers in Earth Science, 2020
Granular materials undergo particle crushing under the long-term load, which changes the particle size distribution (PSD) of the material, and then affects its mechanical properties, so the problem of its long-term stability issues is outstanding ...
Bin Chen   +3 more
doaj   +2 more sources

Comparative Study on Seismic Response of Pile Group Foundation in Coral Sand and Fujian Sand [PDF]

open access: yesJournal of Marine Science and Engineering, 2020
The physical and mechanical properties of coral sand are quite different from those of common terrestrial sands due to the special marine biogenesis. Shaking table tests of three-story structures with nine-pile foundation in coral sand and Fujian sand ...
Qi Wu   +3 more
doaj   +2 more sources

Mechanical Properties and Microscopic Mechanism of Coral Sand-Cement Mortar [PDF]

open access: yesAdvances in Materials Science and Engineering, 2020
The workability and mechanical performance of coral sand-cement mortar (coral mortar, for short) and the modification effects of mineral admixtures on the coral mortar were studied in this paper.
Luoxin Wang   +5 more
doaj   +2 more sources

Effect of coral sand powders and seawater salinity on the impact mechanical properties of cemented coral sand

open access: yesSoils and Foundations, 2022
Coral sand is one kind of the important building materials in coral reef engineering practice. The use of cement as a stabilizing agent can significantly improve the mechanical properties of coral sands and is widely applied in the subbase engineering ...
Jinjian Yang   +5 more
doaj   +2 more sources

Corrosion resistance and pore distribution of hydrophobic modified mortar containing coral sand [PDF]

open access: yesScientific Reports
The hydrophobic modification method, which is commonly used to improve the corrosion resistance of cement-based materials, is reported to have drawbacks, including increased porosity and larger pore diameters in concrete.
Qing Wang   +3 more
doaj   +2 more sources

Dispersion Mechanism and Sensitivity Analysis of Coral Sand

open access: yesJournal of Marine Science and Engineering
A lime–sand island–reef formation has a dual structure consisting of an overlying loose or weakly consolidated coral sand (CS) layer and an underlying reef limestone layer.
Xiang Cui, Ru Qu, Mingjian Hu
doaj   +2 more sources

Coral sand from hydraulic reclamation for the remediation of acid sulfate soil [PDF]

open access: yesE3S Web of Conferences, 2021
For the first time, Coral sand, as the main geotechnical material in reclamation, has the characteristics of loose and porous structure, relatively small volume and mass, easy to break and high compression, and high calcium carbonate, which may be a ...
Zeng Jiachen   +7 more
doaj   +1 more source

Liquefaction evaluation method of coral sand: Case study on the ports in Indonesia

open access: yesFrontiers in Earth Science, 2023
While the liquefaction evaluation methods of siliceous sand have undergone extensive studies, few research efforts were conducted to establish standard for the liquefaction susceptibility of coral sand.
Zezhou Ji, Xiangji Ye, Yingmin Zhang
doaj   +1 more source

Numerical analysis of seismic response of rectangular underground structure in coral sand

open access: yesUnderground Space, 2023
The underground structure in coral sand is threatened by earthquake. The special dynamic characteristics of coral sand were realized by finite difference program.
Qi Wu   +3 more
doaj   +1 more source

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