Dynamic Response of Single Pile Subjected to Different Frequencies in Gypseous Soil

Noor D. Abd; Safa H.  AbidAwn

doi:10.24237/djes.2020.13407

Authors

Noor D. Abd
noorda728@gmail.com
Department of Civil Engineering, College of Engineering, University of Diyala, 32001 Diyala, Iraq
Safa H. AbidAwn Department of Civil Engineering, College of Engineering, University of Diyala, 32001 Diyala, Iraq

Keywords:

Gypseous soil, Piles, Dynamic load, Model test, Vibration

Abstract

This paper exhibits an experimental study on dynamic response of a single pile under dynamic load which comes from motor placed on cap pile called a vibration source. This study used the effect of the dynamic movement of vibration on one pile, collapsible soil (gypseous soil) used in this study with 30% gypsum content. The experiment is performed in a dry and soak state. A solid steel pile with a slenderness ratio of 27 was inserted into the soil after preparing it in layers in a steel container (30 * 30 * 60) cm. The test was performed under a dynamic response to the different frequencies 10, 15, 20, and 25 Hz. The results showed that the speed, acceleration and displacement increase with increasing frequency of the vibration source in addition to that the values of speed, acceleration and displacement amplitude are less in the case of soaking compared to their values in the dry state.

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