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A platform for research: civil engineering, architecture and urbanism
Displacement Field of an Uplifting Anchor in Sand
This paper presents a scaled-model test on sand displacement field during anchor uplifting. An in-house data acquisition system is developed to acquire the force, the anchor displacement, and soil images during anchor uplifting. The sand displacement is calculated using the digital image correlation (DIC) method from two images: one is taken at the initial stage and the other is at the peak pullout load moment. The failure plane is identified by locating the maximum shear strains deduced from the displacement field. Two distinctively different shear bands are observed in loose and dense conditions: 1) in loose sand, the shearing bands start at the edges of the anchor plate and converge and form a bell above the anchor; 2) while in dense sand these shear bands extend outward to the ground surface with an inclination angle with the vertical of approximately 1/2 to 1/3 the friction angle of soil.
Displacement Field of an Uplifting Anchor in Sand
This paper presents a scaled-model test on sand displacement field during anchor uplifting. An in-house data acquisition system is developed to acquire the force, the anchor displacement, and soil images during anchor uplifting. The sand displacement is calculated using the digital image correlation (DIC) method from two images: one is taken at the initial stage and the other is at the peak pullout load moment. The failure plane is identified by locating the maximum shear strains deduced from the displacement field. Two distinctively different shear bands are observed in loose and dense conditions: 1) in loose sand, the shearing bands start at the edges of the anchor plate and converge and form a bell above the anchor; 2) while in dense sand these shear bands extend outward to the ground surface with an inclination angle with the vertical of approximately 1/2 to 1/3 the friction angle of soil.
Displacement Field of an Uplifting Anchor in Sand
Liu, Mingliang (author) / Liu, Jinyuan (author) / Gao, Hongmei (author)
GeoShanghai International Conference 2010 ; 2010 ; Shanghai, China
2010-05-14
Conference paper
Electronic Resource
English
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