Results 11 to 20 of about 5,535 (166)

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

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

Shaking table tests on dynamic response of coral sand foundation under buildings

open access: yesYantu gongcheng xuebao, 2019
With the rapid development of coral island construction, the seismic safety of coral sand foundation is particularly important. To reveal the seismic response characteristics of coral sand foundation and buildings, the shaking table tests on a three ...
DING Xuan-ming 1,2, WU Qi 1,2, LIU Han-long 1,2,3, CHEN Zhi-xiong 1,2, CHEN Yu-min 3, PENG Yu 1,2
doaj   +1 more source

Study on the Shear Band of Sand with Various Particle Characteristics Using PIV Analysis [PDF]

open access: yesE3S Web of Conferences, 2019
The phenomenon of ground undergoing large plastic deformation, leading to collapse, occurs due to the localization of unstable deformation. The investigation of shear band is important in order to understand the destructive phenomenon.
Kajiyama Shintaro   +3 more
doaj   +1 more source

Experimental study on creep properties of coral sand

open access: yesYantu gongcheng xuebao, 2020
The consolidated drainage shear tests on the coral sand with two kinds of relative densities under different confining pressures are performed, and its peak strength and deformation characteristics are obtained. Then, the creep tests on the samples under
LI Xiao-mei 1, WANG Fang 1, HAN Lin 2, GUAN Yun-fei 1
doaj   +1 more source

Experimental study on anisotropy of saturated coral sand under complex stress conditions

open access: yesYantu gongcheng xuebao, 2022
Anisotropy is the inherent property of coral sand. A series of undrained monotonic shear tests are carried out on the saturated Nansha coral sand by using the GDS hollow cylinder torsional shear apparatus.
MA Wei-jia 1, QIN You 1, WANG Chang-de 1, CHEN Guo-xing 1, 2
doaj   +1 more source

Fractal Behavior of Coral Sand During Creep

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   +1 more source

Chloride retention mechanism of coral sand cement stones modified by graphene oxide

open access: yes工程科学学报, 2022
In the marine environment far away from the mainland, the coral sand foundation can be improved by injecting the cement grout with a very small amount of graphene oxide (GO) through grouting or mixing piles and other processes, which can greatly increase
Bin CHEN   +6 more
doaj   +1 more source

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