Results 21 to 30 of about 242 (152)

Field Test and Numerical Studies on Influences of PVD Spacing on Vacuum Treatment Effects of Dredged Slurry

open access: yesAdvances in Civil Engineering, 2021
A field test was conducted on vacuum treatment effects of a dredged slurry ground considering three PVD spacing, i.e., 700, 800, and 900 mm. The settlement and the pore water pressure dissipation were measured during the treatment period.
Yanming Yu   +3 more
doaj   +1 more source

Experimental Study on Mechanical Properties and Drying Shrinkage Compensation of Solidified Ultra-Fine Dredged Sand Blocks Made with GGBS-Based Geopolymer

open access: yesBuildings, 2023
As natural aggregates become increasingly scarce, attention has turned to ultra-fine dredged sand (UDS) generated in waterway regulation engineering. UDS is typically challenging to utilize due to its high clay content and high water demand. This article
Ming Feng   +4 more
doaj   +1 more source

Land reclamation & soil improvement using dredged slurry as fill [PDF]

open access: yes, 2020
Dredged seabed materials are proposed as an alternative reclamation fill for sand depleted cities. Hydraulic dredging and infilling are identified as the most efficient and cost-effective ways to place large quantities of dredged materials at shallow depth when dump barges cannot be used.
openaire   +2 more sources

Influences of flocculant and retarder on solidification efficiency of cement in treatment of dredged mud slurry

open access: yesYantu gongcheng xuebao, 2019
It is usually necessary to build a working platform on the surface of the dumping site of dredged mud slurry for the purpose of rapid improvement of the dumping site so as to shorten the period of land occupation.
ZHANG Rong-jun 1, DONG Chao-qiang 1, ZHENG Jun-jie 1, LU Zhan 2
doaj   +1 more source

Model Test Study on Dredge Slurry Vacuum Preloading

open access: yesDEStech Transactions on Engineering and Technology Research, 2018
Dredge materials with the water content more than 80% have been used for land reclamation in Tianjin, China. The dredge is transferred by pipeline to the reclamation place and then strengthened with the vacuum preloading technique. It has been found that with the thickness of the filled dredge layer becomes larger and larger, the quality of soil ...
Xinyong Yuan, Zhaolin Jia
openaire   +2 more sources

Preliminary study on real-time pore water pressure response and reinforcement mechanism of air-booster vacuum preloading treated dredged slurry

open access: yesRock and Soil Mechanics, 2020
Laboratory tests have been carried out for simulating dredged-slurry treatment combining air-booster and conventional vacuum preloading methods. Settlement plate, micro pore water pressure transducer and miniature vane shearing instrument are adopted for
SHI Li   +4 more
doaj   +1 more source

The study of the separation and deposition of dredging soil slurry under physical disturbance

open access: yesPLOS ONE, 2023
Most existing research uses experimental designs for testing, which cannot efficiently analyse the migration and sorting rules of particles in the disturbed slurry. Therefore, based on the fluidized bed flow film theory, a slurry flow film structure system is established according to the disturbance state of the fluid.
openaire   +4 more sources

Sludge solidification based on carbon dioxide foam cement slurry

open access: yesYantu gongcheng xuebao
River and lake dredging will produce a large amount of dredged sludge with high water content and compressibility. Using the carbon dioxide as the foam gas source to prepare carbon dioxide foam cement slurry and use it as the solidification material to ...
FENG Tugen 1, LI Zhiping 1, ZHANG Jian 1, XIE Kang 2
doaj   +1 more source

High and dry: the persistence of diverse coastal marsh communities depends on available upland area and connection to surrounding waters

open access: yesRestoration Ecology, EarlyView.
Sea‐level‐rise and alterations to natural hydrology have contributed to coastal land loss. To combat coastal land loss and maintain the ecosystem services provided by marshes, marsh creation has been broadly implemented. Marsh creation projects can be performed in conjunction with the construction of elevated terrestrial ridges that seek to mimic ...
Erik Nati‐Johnson   +3 more
wiley   +1 more source

Experimental study on sedimentation and consolidation of soil particles in dredged slurry

open access: yesKSCE Journal of Civil Engineering, 2017
Sedimentation and consolidation of dredged slurry is very complex in practice. A new Multilayer Extraction Sampling (MES) method was developed in this study to better understand the underlying law of sedimentation and consolidation of soil particles in slurries.
Nan Zhang, Wei Zhu, Hongtao He, Yiyan Lv
openaire   +1 more source

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