Seismic behavior of micropile systems

Aomar Benslimane, Ilan Juran, Sherif Hanna, Serguey Drabkin

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

A series of centrifuge tests were conducted on micropile group and network systems in order to investigate the response to earthquake loading and soil-micropile interaction behavior. Model tests on group and network systems embedded in loose to medium dense dry sand are described. Micropile bending moment, deflection, and acceleration were measured during testing. Dynamic p-y curves were derived from the measurements for low and high levels of shaking and were compared with the backbone p-y curves for sand recommended by API and other published data. Group and network effects were investigated for different configurations and at different levels of loading. For the selected frequency of excitation, the results indicate a positive group effect increasing with the number of piles and the batter angle. This paper describes the experimental procedures used to carry out the centrifugal model tests and summarizes the main preliminary results.

Original languageEnglish (US)
Title of host publicationGeotechnical Special Publication
Pages239-258
Number of pages20
Edition81
StatePublished - 1998

ASJC Scopus subject areas

  • Soil Science
  • Building and Construction
  • Architecture

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