Geotechnique

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One-dimensional self-weight consolidation of a lumpy clay fill
Geotechnique - Tập 52 Số 10 - Trang 713-725 - 2002
Lijing Yang, Thiam‐Soon Tan, S. A. Tan, C. F. Leung
The need to use a large amount of dredged and excavated materials as fill for land reclamation necessitates an examination of the consolidation of a lumpy fill. Experimental results have shown the existence of two systems of voids in such a fill: inter-lump voids and intra-lump voids. The consolidation of this fill is highly complicated, and a simple box-spring model analogy is used to pr...... hiện toàn bộ
Correlation between Atterberg plasticity limits and residual shear strength of natural soils
Geotechnique - Tập 23 Số 2 - Trang 265-267 - 1973
B. Voight
Soil deformation measurement using particle image velocimetry (PIV) and photogrammetry
Geotechnique - Tập 53 Số 7 - Trang 619-631 - 2003
David White, W. Andy Take, M. D. Bolton
A deformation measurement system based on particle image velocimetry (PIV) and close-range photogrammetry has been developed for use in geotechnical testing. In this paper, the theory underlying this system is described, and the performance is validated. Digital photography is used to capture images of planar soil deformation. Using PIV, the movement of a fine mesh of soil patches is meas...... hiện toàn bộ
The effects of drainage on the behaviour of railway track foundation materials during cyclic loading
Geotechnique - Tập 67 Số 10 - Trang 845-854 - 2017
Anna Mamou, W. Powrie, Jeffrey A. Priest, C.R.I. Clayton
This paper presents the results of a series of hollow cylinder tests carried out to investigate the role of drainage conditions on the response of railway track foundation materials during cyclic loading. Three sand–clay mixes were tested. It was found that, below a certain cyclic shear stress threshold, and depending on the drainage conditions, changes in principal stress direction shoul...... hiện toàn bộ
Sand grain crushing and interface shearing during displacement pile installation in sand
Geotechnique - Tập 60 Số 6 - Trang 469-482 - 2010
Z. X. Yang, R. J. Jardine, Bitang Zhu, Pierre Foray, Cristina de Hollanda Cavalcanti Tsuha
Particle crushing, shear banding, interface abrasion and migration of crushing products all have the potential to influence the behaviour of displacement piles in sands. This paper considers these particulate processes, reporting experiments with model displacement piles installed in uniform pressurised sand and parallel interface ring shear tests. The findings offer new insights into the...... hiện toàn bộ
Tunnelling and geotechnics: new horizons
Geotechnique - Tập 58 Số 9 - Trang 695-736 - 2008
RJ Mair
New developments in both the theory and the practice of tunnelling are covered in the lecture. The important relationship between tunnelling and geotechnics is highlighted, and recent advances in research and practice are described, drawing on model studies, theoretical developments and field measurements from case histories from around the world. Simplified plasticity models are presente...... hiện toàn bộ
Analysis of undrained soil deformation due to ground loss
Geotechnique - Tập 37 Số 3 - Trang 301-320 - 1987
César Sagaseta
Closed form solutions are presented for obtaining the strain field in an initially isotropic and homogeneous incompressible soil due to near-surface ground loss. This problem fits into a category of cases in which the imposed boundary conditions are only or mainly in terms of displacements (strain-controlled problems). In these cases there is a possibility of eliminating the stresses and ...... hiện toàn bộ
Design method for the undrained capacity of skirted circular foundations under combined loading: effect of deformable soil plug
Geotechnique - Tập 65 Số 8 - Trang 669-683 - 2015
Cristina Vulpe
The response of skirted circular foundations with rough and smooth soil–skirt interface to combined loading is investigated. The shape and size of the failure envelopes of the skirted circular foundations under a practical range of embedment ratio, soil strength heterogeneity, soil–skirt interface and level of vertical mobilisation are compared to those of solid embedded circular foundati...... hiện toàn bộ
Design approach for rectangular mudmats under fully three-dimensional loading
Geotechnique - Tập 64 Số 1 - Trang 51-63 - 2014
Xiaowei Feng, Mark Randolph, Susan Gourvenec, Régis Wallerand
Mudmats are used in the offshore oil and gas industry to support subsea infrastructure for pipeline terminations and well manifolds. Expansion and contraction of connected pipelines and jumpers due to changing thermal and pressure conditions impose fully three-dimensional loading on the foundations, dominated by horizontal, moment and torsional loading rather than high vertical loads. The...... hiện toàn bộ
Behaviour of ball penetrometer in uniform single- and double-layer clays
Geotechnique - Tập 63 Số 8 - Trang 682-694 - 2013
Mi Zhou, Muhammad Shazzad Hossain, Yuxia Hu, H. Liu
The spherical ball penetrometer is increasingly being used for profiling the undrained shear strength of soils in centrifuge and offshore site investigations. This paper reports the results from large-deformation finite-element (LDFE) analysis undertaken to provide insight into ball penetrometer behaviour during undrained vertical penetration through uniform and stratified clay deposits. ...... hiện toàn bộ
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