TY  - JOUR
AU  - Chow, SH
AU  - Diambra, A
AU  - O'Loughlin, CD
AU  - Gaudin, C
AU  - Randolph, MF
Y2  - 2020/12/03
Y1  - 2020/01/01
SN  - 0016-8505
UR  - http://hdl.handle.net/11343/252762
AB  - This study investigated the change in monotonic and cyclic capacity of a plate anchor across different degrees of consolidation in dense sand. To quantify the effect of consolidation on anchor capacity, a framework is introduced and validated using centrifuge model anchor test data. The centrifuge tests considered a rectangular plate loaded at varying rates in dense sand, under both monotonic and irregular cyclic conditions, at a fixed embedment depth and with a horizontal load inclination (at the seabed). In order to vary from drained to undrained conditions, the sand was saturated using both water and a viscous pore fluid with viscosity approximately 700 times higher than water. The anchor's ultimate monotonic capacity in dense sand increased by up to 173% as the consolidation response evolved from drained to undrained with generation of dilation-induced suction. This increase in capacity across the consolidation regime can be adequately quantified using the proposed framework; however, uncertainty arises in achieving the theoretical undrained capacity. Both drained and undrained irregular cyclic loading resulted in anchor capacity increases of up to 33%, attributed to soil volume changes associated with cyclic densification under drained cyclic loading and excess pore pressure dissipation under undrained cyclic loading.
LA  - en
PB  - Thomas Telford Ltd.
T1  - Consolidation effects on monotonic and cyclic capacity of plate anchors in sand
DO  - 10.1680/jgeot.19.ti.017
IS  - Geotechnique: international journal of soil mechanics
VL  - 70
IS  - 8
SP  - 720-731
OP  - DP190100914
L1  - /bitstream/handle/11343/252762/Chow%20et%20al.%202020_accepted%20version-1.pdf?sequence=2&isAllowed=y
ER  -