A CASE HISTORY ON PERFORMANCE MONITORING OF RAMMED AGGEREGATE PIERS (RAPS) (In Turkish)

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Bal E. K., Öner L., Berilgen M. M., Özaydin K.

Soil Mechanics and Foundation Engineering Fifteenth National Congress, Ankara, Turkey, 16 October 2014, pp.603-611

  • Publication Type: Conference Paper / Full Text
  • City: Ankara
  • Country: Turkey
  • Page Numbers: pp.603-611
  • Yıldız Technical University Affiliated: Yes

Abstract

This paper presents the performance assessment of Rammed Aggregate Pier® (RAP)

system used as a ground improvement solution under a 60 kPa of surface loading founded

on hydraulic fill and soft to medium stiff clays. All RAP elements were constructed to a

final diameter of 50 cm with lengths of 16m and spacing of 1,5m to improve liquefaction

mitigation, bearing capacity, settlement responses and accelerate the time rate of settlement

(i.e.: consolidation) at the project site. The ultimate consolidation settlement is evaluated

based on the observed settlement by using Asaoka, 1978 method. Settlement predictions

are compared with actual measurements, which revealed that the RAP improved

foundation soils have an increased bearing capacity, decreased compressibility compared

to the unimproved site and minimized the differantial settlements.