Particle size effects in granular soils under true triaxial conditionsGeotechnique - Tập 64 Số 8 - Trang 667-672 - 2014
Yang Xiao, H. Liu, Y. Chen, Wengang Zhang
The size effect theory was proposed by Frossard and co-workers for evaluating
the shear strength of rockfill material. However, this theory has not been
validated in a general stress path, in which the intermediate principal stress
may be different from the minor principal stress. A series of true triaxial
compression tests on rockfill material A (RFM-A, a small-sized particle) and
rockfill materi... hiện toàn bộ
One-dimensional self-weight consolidation of a lumpy clay fillGeotechnique - 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
provide a b... hiện toàn bộ
Lias clay: the long-term stability of cutting slopesGeotechnique - Tập 24 Số 1 - Trang 21-38 - 1974
R. J. Chandler
Twelve case records of failures of Upper Lias Clay cutting slopes are presented.
In each case it is believed that groundwater conditions have reached the
long-term ‘steady’ state, though seasonal fluctuations occur at shallow depths.
Evidence for this pattern of groundwater behaviour is provided by piezometric
data from four of the sites which in turn have been used to estimate groundwater
conditi... hiện toàn bộ
The nature and origin of deep ocean clay crust from the Gulf of GuineaGeotechnique - Tập 63 Số 6 - Trang 500-509 - 2013
Matthew Kuo, M. D. Bolton
Deep ocean sediments off the west coast of Africa exhibit a peculiar undrained
strength profile in the form of a crust, albeit of exceptionally high water
content, overlying normally consolidated clay. Hot-oil pipelines are installed
into these crustal sediments, so their origins and characteristics are of great
interest to pipeline designers. This paper provides evidence for the presence of
burro... hiện toàn bộ
Soil deformation measurement using particle image velocimetry (PIV) and photogrammetryGeotechnique - 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 measured to a... hiện toàn bộ