Results 11 to 20 of about 32,194 (245)

Experimental Pullout Capacity of Screw Piles in Dry Gypseous Soil [PDF]

E3S Web of Conferences, 2021
Screw piles are widely used in supporting structures subjected to pullout forces, such as power towers and offshore structures, and this research investigates their performance in gypseous soil of medium relative density.
Karkush Mahdi O., Mukhlef Omar J.
doaj   +1 more source

Performance of screw piles in thick collapsible loess

Case Studies in Construction Materials, 2023
The bearing capacity of the composite foundation would be significantly increased by the squeezing effect of soil displacement screw pile. To investigate the effect of soil displacement screw pile treatment on the large-thickness collapsible loess ...
Xingwei Wang, Tianlei Chen, Xu Wang, Jiandong Li, Deren Liu, Yanjie Zhang, Daijun Jiang   +6 more
doaj   +1 more source

Experimental study on bearing mechanism of screw cast-in-place piles under vertical loads

Yantu gongcheng xuebao, 2021
The screw cast-in-place pile is a kind of variable-section cast-in-place pile with cylindrical top and threaded bottom. Due to its special construction technology and section form, the bearing mechanism of screw piles is different from that of piles with
WANG Shu-guang 1, 2, FENG Zhe 3, TANG Jian-zhong 1, ZHAO Zhi-peng 1
doaj   +1 more source

Depinning transition of dislocation assemblies: pileup and low-angle grain boundary [PDF]

, 2003
We investigate the depinning transition occurring in dislocation assemblies. In particular, we consider the cases of regularly spaced pileups and low angle grain boundaries interacting with a disordered stress landscape provided by solute atoms, or by ...
A. I. Lar’kin, A. J. E. Foreman, C. S. Smith, E. Bouchaud, F. R. N. Nabarro, F. R. N. Nabarro, H. Gao, H. Leschhorn, H. Neuhäuser, H. Neuhäuser, J. Friedel, J. P. Hirth, L. B. Ioffe, M. Z. Butt, M. Zaiser, M.-Carmen Miguel, Michael Zaiser, P. A. Manohar, P. M. Hazzledine, Paolo Moretti, R. Labusch, R. Labusch, S. I. Zaitsev, S. I. Zaitsev, S. I. Zaitsev, S. I. Zaitsev, S. Zapperi, Stefano Zapperi, T. Nattermann   +28 more
core   +6 more sources

Experimental and theoretical researches on horizontal bearing mechansim of single screw anchor pile

Yantu gongcheng xuebao, 2020
The design codes for screw anchor piles have shortcomings in calculation of the horizontal drawing capacity, and the understanding of soil pressure distribution on the anchorage surface is not unified in theoretical researches.
HU Wei 1, 2, MENG Jian-wei 1, 2, LIU Shun-kai 3, LONG Cheng-bi 1, 2, YAO Chen 1, 2, GAO Wen-hua 1, 2
doaj   +1 more source

Geotechnical particle finite element method for modeling of soil-structure interaction under large deformation conditions

Journal of Rock Mechanics and Geotechnical Engineering, 2022
The possibilities of the particle finite element method (PFEM) for modeling geotechnical problems are increasingly evident. PFEM is a numerical approach to solve large displacement and large strain continuum problems that are beyond the capabilities of ...
Josep Maria Carbonell, Lluís Monforte, Matteo O. Ciantia, Marcos Arroyo, Antonio Gens   +4 more
doaj   +1 more source

A multi-phase field model of planar dislocation networks [PDF]

, 2004
In this paper we extend the phase-field model of crystallographic slip of Ortiz (1999 J. Appl. Mech. ASME 66 289–98) and Koslowski et al (2001 J. Mech. Phys.
Koslowski, M., Ortiz, M.
core   +1 more source

Screw pile design optimisation under tension in sand [PDF]

, 2019
Many applications in offshore engineering, such as floating or jacket-founded wind turbines or wave energy converters, require a significant uplift capacity of their foundations to be kept in place.
Brown, Michael, Cerfontaine, Benjamin, Davidson, Craig, Knappett, Jonathan, Sharif, Yaseen   +4 more
core   +2 more sources

Developing screw piles for offshore renewable energy application [PDF]

, 2020
This paper details the work undertaken at the University of Dundee in the last 5 years to develop understanding of screw piles to allow them to be deployed offshore as an alternative foundation type to driven piles used in jacket structures.
Brennan, Andrew, Brown, Michael J., Cerfontaine, Benjamin, Ciantia, Matteo, Davidson, Craig, Knappett, Jonathan   +5 more
core   +3 more sources

DEM simulation of cyclic tests on an offshore screw pile for floating wind

, 2021
Screw piles need to be upscaled for offshore use e.g. being an alternative foundation and anchor form for offshore floating wind turbines, although the high demand of vertical installation forces could prevent its application if conventional pitch ...
Wen Wang, Michael Brown, M. Ciantia, Y. Sharif   +3 more
semanticscholar   +1 more source