Results 11 to 20 of about 2,940 (209)

Mass Permeability Concept in the Analysis of Treated Ground with Sand Drains

open access: yesSoils and Foundations, 1995
When a soft clay foundation under embankment loading is considered, settlement behavior is affected by the mass permeability and by the magnitude of applied load intensity, which is normalized by the initial undrained bearing capacity. Using these two parameters, the characteristic consolidation settlement behavior of a clay foundation can be ...
ASAOKA, AKIRA   +3 more
openaire   +2 more sources

Study of Permeability of Glass-Sand Soil

open access: yesArchives of Civil Engineering, 2017
The drainage consolidation method has been efficiently used to deal with soft ground improvement. Nowadays, it has been suggested to use a new sand soil which is a composite of sand and recycled glass waste.
Wang F. C.   +3 more
doaj   +1 more source

Consolidation Analysis of Ideal Sand‐Drained Ground with Fractional‐Derivative Merchant Model and Non‐Darcian Flow Described by Non‐Newtonian Index [PDF]

open access: yesMathematical Problems in Engineering, 2019
To further investigate the rheological consolidation mechanism of soft soil ground with vertical drains, the fractional‐derivative Merchant model (FDMM) is introduced to describe the viscoelastic behavior of saturated clay around the vertical drains, and the flow model with the non‐Newtonian index is employed to describe the non‐Darcian flow in the ...
Zhongyu Liu   +3 more
openaire   +1 more source

Geophysical and Sedimentological Investigations Integrate Remote-Sensing Data to Depict Geometry of Fluvial Sedimentary Bodies: An Example from Holocene Point-Bar Deposits of the Venetian Plain (Italy)

open access: yesRemote Sensing, 2020
Over the past few millennia, meandering fluvial channels drained coastal landscapes accumulating sedimentary successions that today are permeable pathways.
Giorgio Cassiani   +5 more
doaj   +1 more source

Mapping of Agricultural Subsurface Drainage Systems Using a Frequency-Domain Ground Penetrating Radar and Evaluating Its Performance Using a Single-Frequency Multi-Receiver Electromagnetic Induction Instrument

open access: yesSensors, 2020
Subsurface drainage systems are commonly used to remove surplus water from the soil profile of a poorly drained farmland. Traditional methods for drainage mapping involve the use of tile probes and trenching equipment that are time-consuming, labor ...
Triven Koganti   +5 more
doaj   +1 more source

Predicting the reduction of embankment pressure on the surface of the soft ground reinforced by sand drain with random forest regression

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract The consolidation acceleration of embankment with sand drain has been studied in many researchs and standards. However, the pressure distribution on the surface of soft ground with the appearance of sand drain has not focused.
Tiep Duc Pham   +3 more
openaire   +1 more source

APPLICATION OF SAND DRAIN PROCEDURE TO ROAD EMBANKMENT ON UNDER-CONSOLIDATED DREDGED CLAY GROUND

open access: yesDoboku Gakkai Ronbunshu, 2005
新北九州空港が建設されている空港島で, 圧密度50%以下の超軟弱な未圧密粘土地盤上に計画高さ3~5mの道路盛土を構築するにあたり, 沈下・安定対策にサンドドレーンで地盤改良を行い, 盛土を立ち上げた. その際, 盛土により発生する増加応力Δp に未圧密分の過剰間隙水圧Δup0 を加えた荷重で圧密沈下量, 圧密による強度増加が推定可能であることを示し, この考え方を従来の軟弱地盤対策工指針などに導入して設計を行った. さらに, 動態観測結果をもとに設計方法の妥当性を検証した.
Yutaka TANOUE   +5 more
openaire   +2 more sources

EVALUATING SHEAR STRENGTH OF SAND- GGBFS BASED GEOPOLYMER COMPOSITE MATERIAL

open access: yesActa Polytechnica, 2019
Geopolymer has been emerging as a novel and sustainable replacement for the traditional soil improvement materials, such as ordinary Portland cement OPC and lime, which have severe environmental impacts.
Alaa Hussein Jassim Al-Rkaby
doaj   +1 more source

Effects of environmental factors on the growth response of above- and below-ground parts of Mankyua chejuense , endangered endemic plant to Jeju province, in Korea

open access: yesJournal of Ecology and Environment, 2014
Mankyua chejuense is a native endangered plant distributed only in Gotzawal, a forested wetland, in Jeju Province, Korea. In order to determine the optimal environmental conditions for the growth and development of M.
Young-Han You   +3 more
doaj   +1 more source

Epidemiological Survey and Genomic Insights Into Ostreid Herpesvirus 1 Transmission in the Blood Clam Anadara broughtonii in China (2019–2025)

open access: yesAnimal Research and One Health, EarlyView.
Seven‐year surveillance reveals a cold‐adapted OsHV‐1 lineage in blood clams, with disease onset at 13°C—3–5°C lower than in oysters—and identifies asymptomatic carriers and facility effluent as key transmission routes. ABSTRACT Ostreid herpesvirus 1 (OsHV‐1) poses a major threat to bivalve aquaculture, but its impact on blood clams (Anadara ...
Xiang Zhang   +7 more
wiley   +1 more source

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