Results 21 to 30 of about 155 (137)

Analysis of the Effectiveness of the Step Vacuum Preloading Method: A Case Study on High Clay Content Dredger Fill in Tianjin, China

open access: yesJournal of Marine Science and Engineering, 2020
As a solution to avoid the blockage of the drainage pipe by traditional vacuum preloading, step vacuum preloading (SVP) has been progressively studied. However, the effectiveness of this technique has yet to be systematically analyzed.
Jinfeng Li   +3 more
doaj   +1 more source

Quantitative Analysis of the Relationship Between Shear Strength and Fractal Dimension of Solidified Dredger Fill with Different Fly Ash Content Under Monotonic Shear

open access: yesPolish Maritime Research, 2018
The dredger fill of Shanghai Hengsha Island Dongtan is solidified by curing agents with different fly ash content, and the shear strength index of solidified dredger fill is measured by the direct shear test.
Shuai Yang, Wenbai Liu, Hongwei Liu
doaj   +1 more source

Experimental studies on vacuum preloading incorporated with electro-osmosis consolidation for dredger fill

open access: yesYantu gongcheng xuebao, 2017
The dewatering effect of dredger fill using the vacuum preloading incorporated with electro-osmosis in different ways is evaluated by implementing six laboratory tests.
SUN Zhao-hua 1, 2, YU Xiang-juan 2, GAO Ming-jun 2, WU Kun 1
doaj   +1 more source

Laboratory Tests for the Consolidation Property of Dredger Fill in the Shenzhen Area

open access: yesIOP Conference Series: Earth and Environmental Science, 2019
Abstract In order to analyze the special engineering properties of the super soft dredger fill, experimental studies had been done on the physical-mechanical properties of that in Shenzhen, especially for its consolidation properties. The test results indicated that the super soft dredger fill had the properties of high water content ...
Airong Zheng, Dongjun LI
openaire   +1 more source

Experimental Investigation of the Liquefaction Properties and Post-Liquefaction Volumetric Strain of Calcareous Sand in Dredger Fill Site

open access: yesAdvances in Civil Engineering, 2020
In this study, dynamic triaxial cyclic tests were conducted to examine the liquefaction properties and post-liquefaction volumetric strain of calcareous sand from a dredger fill site in the midst of the islands and reefs of the South China Sea.
Shenghua Zhao   +4 more
doaj   +1 more source

Reinforcement Effect of Polyacrylamide on Dredger Fill Improved by Vacuum Preloading

open access: yesDEStech Transactions on Materials Science and Engineering, 2017
A series of laboratory tests were carried out to evaluate the effectiveness of polyacrylamide (PAM) on dredger fill combined with the vacuum preloading method. Five groups of vacuum preloading model tests were conducted, and the groups were mixed with 0, 15, 30, 60, or 90 mg/L PAM. The test results indicated that the optimal dosage of PAM is 30mg/L for
Huayang Lei   +3 more
openaire   +2 more sources

New techniques for old bones: Morphometric and diffeomorphometric analysis of the bony labyrinth of the Reilingen and Ehringsdorf Neandertals

open access: yesThe Anatomical Record, EarlyView.
Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli   +6 more
wiley   +1 more source

Model tests and numerical simulations of newly sheet-free vacuum preloading method for ultra-soft dredger fills

open access: yesYantu gongcheng xuebao, 2017
There are problems when dealing with the dredger fills using the traditional vacuum preloading method, for example, the treated area can not be too large and the plastic-sheet maybe leaks.
LEI Hua-yang 1, 2, LIU Ying-nan 2, FENG Shuang-xi2, LIU Jing-jin 1, 2
doaj   +1 more source

Scanning Parametric Sediment Echosounder as Tool for Underwater Archaeological Prospection

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Underwater cultural heritage 3D prospection techniques, especially for remains that are partly buried in the ground, are only very rarely available and often can only be applied with considerable technical effort. To overcome this limitation, we evaluate a methodological adaption of widely used and available single channel parametric sediment ...
Dennis Wilken   +5 more
wiley   +1 more source

The influence of rivers on seabird foraging ecology

open access: yesBiological Reviews, EarlyView.
ABSTRACT Rivers act as vital arteries to the world's oceans, delivering fresh water and nutrients that sustain marine ecosystems. Globally, river flow increasingly is being altered by climate change and anthropogenic pressures; yet the significance of rivers to predatory marine species, such as seabirds, and the extent to which river‐related changes ...
Julia B. Morais   +2 more
wiley   +1 more source

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