A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dynamic Response of Deep Foundations
A series of model experiments have been conducted to investigate the dynamic response of pile foundations in a blast and shock environment. The model experiments were conducted at the Cambridge Geotechnical Centrifuge facility, Cambridge UK. Two experiments were carried out on a pair of single piles and one on a group of six piles at 60g, and a fourth experiment on a pair of single piles was conducted at 1g for comparison. The model piles were hollow aluminum alloy tubes, instrumented with strain gauges in the horizontal and vertical planes to measure bending and axial strain. The test bed was a fine grained sand saturated with water. The blast load on the foundation was provided by a 2 gm charge of pentaerythritol tetranitrate (PETN) placed below the surface at a depth of one-half of the pile length and detonated at a distance of approximately one crater radius. The paper describes the experimental techniques employed and presents results from the model tests. The results highlight the differences in pile response, particularly with depth, between the 1g and the 60g experiments and confirm the importance of correctly scaling geostatic stresses.
Dynamic Response of Deep Foundations
A series of model experiments have been conducted to investigate the dynamic response of pile foundations in a blast and shock environment. The model experiments were conducted at the Cambridge Geotechnical Centrifuge facility, Cambridge UK. Two experiments were carried out on a pair of single piles and one on a group of six piles at 60g, and a fourth experiment on a pair of single piles was conducted at 1g for comparison. The model piles were hollow aluminum alloy tubes, instrumented with strain gauges in the horizontal and vertical planes to measure bending and axial strain. The test bed was a fine grained sand saturated with water. The blast load on the foundation was provided by a 2 gm charge of pentaerythritol tetranitrate (PETN) placed below the surface at a depth of one-half of the pile length and detonated at a distance of approximately one crater radius. The paper describes the experimental techniques employed and presents results from the model tests. The results highlight the differences in pile response, particularly with depth, between the 1g and the 60g experiments and confirm the importance of correctly scaling geostatic stresses.
Dynamic Response of Deep Foundations
R. S. Steedman (author) / C. W. Felice (author) / E. S. Gaffney (author)
1989
17 pages
Report
No indication
English
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