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Model Tests of Laterally Loaded Piles under a Horizontally Scoured Condition
Scour removes soil around piles and changes the behavior of piles laterally loaded from flow wave, earthquake, and wind. Limited experimental studies have been conducted so far on the behavior of laterally loaded piles under a scoured condition. To evaluate their behavior under a scoured condition, model tests of laterally loaded piles were conducted in this study to investigate the effect of the scour depth. The scour depth, which was represented as the eccentricity between the sand surface and the point where the lateral loads act, was changed from 0 to 500 mm in 100-mm increments and an experiment was conducted for each scour depth. A horizontal scour surface was assumed and no scour slope was considered in this study. Pile failure was defined when the lateral displacement at the point where the lateral load was applied reached 20% the diameter of the pile. The ultimate lateral loads obtained at the failure of the tested pile were close to those calculated using Broms’ method for laterally loaded piles without scour. This comparison indicates that Broms’ method is valid for calculating the ultimate lateral load of a pile under a horizontally scoured condition. Furthermore, the results showed that when the scour depth was increased, the load required to reach failure of the pile decreased significantly.
Model Tests of Laterally Loaded Piles under a Horizontally Scoured Condition
Scour removes soil around piles and changes the behavior of piles laterally loaded from flow wave, earthquake, and wind. Limited experimental studies have been conducted so far on the behavior of laterally loaded piles under a scoured condition. To evaluate their behavior under a scoured condition, model tests of laterally loaded piles were conducted in this study to investigate the effect of the scour depth. The scour depth, which was represented as the eccentricity between the sand surface and the point where the lateral loads act, was changed from 0 to 500 mm in 100-mm increments and an experiment was conducted for each scour depth. A horizontal scour surface was assumed and no scour slope was considered in this study. Pile failure was defined when the lateral displacement at the point where the lateral load was applied reached 20% the diameter of the pile. The ultimate lateral loads obtained at the failure of the tested pile were close to those calculated using Broms’ method for laterally loaded piles without scour. This comparison indicates that Broms’ method is valid for calculating the ultimate lateral load of a pile under a horizontally scoured condition. Furthermore, the results showed that when the scour depth was increased, the load required to reach failure of the pile decreased significantly.
Model Tests of Laterally Loaded Piles under a Horizontally Scoured Condition
Ismael, Omar K. (author) / Han, Jie (author)
IFCEE 2015 ; 2015 ; San Antonio, Texas
IFCEE 2015 ; 802-808
2015-03-17
Conference paper
Electronic Resource
English
MODEL TESTS OF LATERALLY LOADED PILES UNDER A HORIZONTALLY SCOURED CONDITION
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