Optimisation of deep vibratory compaction as liquefaction mitigation measure
Citation Link: https://doi.org/10.15480/882.3945
Publikationstyp
Doctoral Thesis
Date Issued
2021-12-01
Sprache
English
Author(s)
Advisor
Referee
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2021-10-08
Institut
TORE-DOI
First published in
Number in series
50
Citation
Technische Universität Hamburg (2021)
Peer Reviewed
true
Deep vibration compaction is an established ground improvement technique for granular materials. The field experience and empirical relations used for the design of deep vibration compaction processes prompt further study and analysis. 1g model tests, field measurements and numerical simulations evaluated effect of frequency, relative density, shape of vibrator, spacing of compaction points, saturation of sand layer, nature of compaction process and type of sand; on the extent and degree of compaction. Vibrator amplitude was identified as an on-line compaction control parameter. Feasibility of deep vibration compaction for liquefaction mitigation was analysed via seismic site response of saturated sand before and after deep vibration compaction by means of numerical simulations.
Subjects
Deep vibration compaction
CEL
1g Physical Model tests
Seismic Analysis
Amplitude Controlled Compaction
Liquefaction
DDC Class
500: Naturwissenschaften
550: Geowissenschaften
620: Ingenieurwissenschaften
Publication version
publishedVersion