Results 1 to 10 of about 82,775 (258)

Experimental study on bearing characteristics of biocemented coral sand piles in coral sand foundation

open access: yesYantu gongcheng xuebao, 2022
The biocemented coral sand pile is a new type of pile, which is a pile of coral sand solidified by biocemention reaction. The effects of relative compactness of coral sand foundation on the bearing capacity settlement, axial force and shaft friction, of ...
SHEN Chun-ni 1, FANG Xiang-wei 2, HU Feng-hui 2, YAO Zhi-hua 3, LI Yang-yang 4
doaj   +1 more source

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 construction in coral reef islands.
Jinjian Yang   +5 more
openaire   +2 more sources

Microscopic mechanism of permeability of coral sand

open access: yesYantu gongcheng xuebao, 2020
Coral sand is a kind of special marine soil. The special material source and formation process lead to the difference of hydrophysical properties between coral sand and terrestrial sand.
CUI Xiang 1, 2, ZHU Chang-qi 1, HU Ming-jian 1, WANG Ren 1, LIU Hai-feng 1
doaj   +1 more source

Long-term thaumasite sulfate attack on mortar containing coral sand filler and SCMs exposed to sodium sulfate solution

open access: yesCase Studies in Construction Materials, 2023
The use of coral sand filler and supplementary cementitious materials partially replacing Portland cement facilitates the utilization of coral debris waste in oceanic construction as well as CO2 emission.
Xinjun Song, Ying Ma
doaj   +1 more source

Experimental study on the effect of subsurface freshwater-saltwater mixing on the permeability of coral sand

open access: yes地质科技通报, 2023
Objective The permeability of coral sand is the key factor determining the groundwater reserves of coral islands. For a long time, the research on the influence of different salinity filtrates on the permeability of coral sand during the formation of ...
Yinghao Li   +5 more
doaj   +1 more source

Compression characteristics and particle crushing behavior of coral sand–quartz sand mixture under confined high pressure

open access: yesYantu gongcheng xuebao, 2022
The special engineering mechanical characteristics of coral sand have been widely studied, but the coral sand in special areas is not isolated and often contains siliceous impurities to form coral sand mixture.
WANG Wei-guang 1, YAO Zhi-hua 2, LI Wan 2, ZHANG Jian-hua 3
doaj   +1 more source

Centrifuge Shaking Table Test on the Seismic Dynamics of Revetment Breakwater and a Nearby Aircraft Runway Built on Reclaimed Coral Sand Foundation

open access: yesJournal of Marine Science and Engineering, 2022
There are currently at least five aircraft runways built on the reclaimed coral sand foundations in the South China Sea (SCS). The seismic dynamics and stability of the revetment breakwaters and nearby aircraft runways built on reclaimed lands with coral
Yu Zhang   +3 more
doaj   +1 more source

The Hydrodynamic Dispersion Characteristics of Coral Sands [PDF]

open access: yesJournal of Marine Science and Engineering, 2019
Dispersion characteristics are important factors affecting groundwater solute transport in porous media. In marine environments, solute dispersion leads to the formation of freshwater aquifers under islands. In this study, a series of model tests were designed to explore the relationship between the dispersion characteristics of solute in calcareous ...
Cui, Xiang   +4 more
openaire   +2 more sources

Experimental study on dynamic shear modulus and damping ratio of coral sand from Nansha Islands

open access: yesRock and Soil Mechanics, 2020
The physical and engineering mechanical behaviors between coral sand and terrigenous sandy soils are considerably different. To study these behaviours, a series of undrained multistage strain-controlled cyclic triaxial tests were conducted on saturated
LIANG Ke, HE Yang, CHEN Guo-xing
doaj   +1 more source

Experimental study on liquefaction characteristics of saturated coral sand in Nansha Islands under cyclic loading

open access: yesYantu gongcheng xuebao, 2019
Undrained cyclic traxial tests are carried out on the saturated coral sand in Nansha Islands, South China Sea. The experiment aims at investigating the characteristics of pore water pressure,axial strain,effective stress path and cyclic resistance of ...
MA Wei-jia 1, CHEN Guo-xing 1,2, LI Lei 1, WU Qi 1, LIU Jing-ru 3
doaj   +1 more source

Home - About - Disclaimer - Privacy