Results 21 to 30 of about 17,750 (302)

SCREW PILING MECHANISMS

open access: yes, 2022
This article discusses one of the most promising devices for driving screw piles today - the MV-85 screwing mechanism. The graphs of tests of small screw piles with a sufficiently large pull-out bearing capacity are given.
Kakharov, Z.V., Islomov, A.S.
openaire   +1 more source

Frost jacking characteristics of steel pipe screw piles for photovoltaic support foundations in high-latitude and low-altitude regions

open access: yesSoils and Foundations, 2023
In this study, the frost jacking characteristics of steel pipe screw piles for photovoltaic support foundations in high-latitude and low-altitude regions are studied via in situ tests and numerical simulations.
Gongliang Liu   +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

Experimental Study on Configuration and Spacing of Screw Pile Group Effect Subjected to Lateral Cyclic Loading [PDF]

open access: yesE3S Web of Conferences, 2021
Despite the great development in the manufacture of the helical pile and the development of their use, especially in transmission towers and wind turbines, there is little research on their lateral behavior.
Ibrahim Azhar S.   +2 more
doaj   +1 more source

Set-up effects of piles in sand tested in the centrifuge [PDF]

open access: yes, 2014
The bearing capacity of piles increases over time. Research has shown that this is caused by an increase in shaft friction combined with a constant or only slightly increasing base capacity.
Bezuijen, Adam   +4 more
core   +2 more sources

The Analysis of Soil Resistance During Screw Displacement Pile Installation

open access: yesStudia Geotechnica et Mechanica, 2015
The application of screw displacement piles (SDP) is still increasing due to their high efficiency and many advantages. However, one technological problem is a serious disadvantage of those piles. It relates to the generation of very high soil resistance
Krasinski Adam
doaj   +1 more source

Modelling helical screw piles in clay and design implications [PDF]

open access: yes, 2013
Helical screw piles are a popular solution for relatively low-capacity, removable or recyclable foundations supporting road and rail signage or similar light structures.
Black, J.A., Hird, C.C., Stanier, S.A.
core   +1 more source

Cognitive Structures of Good and Poor Novice Problem Solvers in Physics [PDF]

open access: yes, 1986
The way knowledge is organized in memory is generally expected to relate to the degree of success in problem solving. In the present study, we investigated whether good novice problem solvers have their knowledge arranged around problem types to a ...
Ferguson-Hessler, Monica G.M.   +1 more
core   +3 more sources

Identification of residual force in static load tests on instrumented screw displacement piles

open access: yesStudia Geotechnica et Mechanica, 2021
Occurrence of the so-called residual force of an unknown value significantly disturbs interpretation of static load tests performed on piles equipped with additional measuring instruments.
Krasiński Adam, Wiszniewski Mateusz
doaj   +1 more source

Prediction method of screw pile bearing capacity under uplift load

open access: yesSoils and Foundations
The screw threads continuously distributed along the surface of the pile significantly modify its bearing mechanism, distinguishing it from traditional column piles.
Hongwei Ma, Guoqiang Ma, Weiqiang Zhang
doaj   +1 more source

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