Results 1 to 10 of about 13,455 (179)

Application of MWD Sensor System in Auger for Real-Time Monitoring of Soil Resistance During Pile Drilling [PDF]

open access: yesSensors
Measuring-while-drilling (MWD) techniques have great potential for use in geotechnical engineering research. This study first addresses the current use of MWD, which consists of recording data using sensors in a drilling machine operating on site.
Krzysztof Trojnar, Aleksander Siry
doaj   +2 more sources

Comparative Investigation of Axial Bearing Performance and Mechanism of Continuous Flight Auger Pile in Weathered Granitic Soils

open access: yesBuildings, 2023
Axial bearing performance and mechanism of continuous flight auger (CFA) pile in weathered granitic soils, i.e., a widespread special soil in South China, were investigated by field test in this study.
Li, Zhaofeng
exaly   +3 more sources

Assessment of the Shear Strength of Pile-to-Soil Interfaces Based on Pile Surface Topography Using Laser Scanning [PDF]

open access: yesSensors, 2019
This article presents in situ research on the side surface of continuous flight auger (CFA) foundation piles using a three-dimensional (3D) laser scanner (Leica ScanStation C10) in order to evaluate the morphology assessment of pile concrete surfaces in ...
Zbigniew Muszyński, Marek Wyjadłowski
doaj   +2 more sources

Installation effects of auger cast-in-place piles

open access: yesAlexandria Engineering Journal, 2012
Since their introduction in Europe and North America some 50 years ago, auger cast-in-place piles (ACIP) have become increasingly popular all over the world.
Fathi M. Abdrabbo, Khaled E. Gaaver
doaj   +2 more sources

DISCHARGING CHARACTERISTICS BY SCREW AUGER OF GRAVEL DRAIN PILE

open access: yesDoboku Gakkai Ronbunshuu F, 2006
回転貫入式砕石杭工法は,地震時に発生する過剰間隙水圧の消散により液状化防止を図る工法であり,構造物の耐震補強工法として広く用いられている.当工法では,施工時に発生する地盤変位を低減するためにケーシングパイプの外周にスクリューを装着して施工時に土を地表に排出する.この地表に排出される土の量(以下排土量と呼ぶ)は周辺地盤変位に大きく影響を与えることより,施工時に排土量を精度良く推定し,制御することは極めて重要である. 本論文では,砂地盤における回転貫入式砕石杭工法の排土機構を明らかにし,排土量の推定式を提案した.また,現場における実測排土量調査により,その適用性を確認した.
Hisashi FUKADA   +3 more
exaly   +3 more sources

FEM modelling of screw displacement pile interaction with subsoil [PDF]

open access: yesArchives of Civil Engineering, 2023
Predicting the Q–s settlement characteristics of piles is an important element in the designing of pile foundations. The most reliable method in evaluating pile-soil interaction is the static load test, preferably performed with instrumentation for ...
Paweł Wiecławski, Adam Krasinski
doaj   +1 more source

Model and field tests of drilled displacement system piles [PDF]

open access: yesE3S Web of Conferences, 2023
Drilled Displacement System (DDS) and Continuous Flight Auger (CFA) piles are two popular techniques used for building pile foundations that offer advantages over traditional pile systems, including improved load-carrying capacity, reduced installation ...
Zhussupbekov A.   +5 more
doaj   +1 more source

Estimation of Screw Displacement Pile-Bearing Capacity Based on Drilling Resistances

open access: yesStudia Geotechnica et Mechanica, 2023
This article presents an engineering, empirical method of estimating the bearing capacity and settlement characteristics Q-s of screw displacement piles and columns, based on soil resistance encountered during the drilling to form piles/columns in the ...
Krasiński Adam
doaj   +1 more source

Assessment of the impact of pile manufacturing technology on surrounding buildings in soft soils [PDF]

open access: yesE3S Web of Conferences, 2023
Nowadays, the decrease in number of urban areas for buildings is observed. Therefore, a novel construction of buildings has to be carried out in dense buildings areas. Construction buildings in historical districts become the most complicated goal.
Kopteva Anastasia   +3 more
doaj   +1 more source

Laboratory Model Study on the Pile-Forming Mechanisms and Bearing Deformation Characteristics of CFA Piles

open access: yesAdvances in Civil Engineering, 2021
To study the pile-forming mechanism and bearing deformation characteristics of continuous flight auger (CFA) piles, a series of procedures, including helical drilling, pulling up/grouting, and inserting cage/pile forming, were simulated in clay-sand ...
Deliang Zhu   +4 more
doaj   +1 more source

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