Remerciez-le!

Remerciez @Admin pour avoir partagé cet document gratuitement, de la manière la plus simple, en partageant sur les réseaux sociaux.

Equivalent pier theory for piled raft design

Equivalent pier theory for piled raft design Équivalence de la théorie de la jetée pour la conception de radeau empilé Balakumar V Simplex Infrastructures Limited Chennai Tamil Nadu India Huang M Arup Geotechnics Brisbane Australia Oh E Balasubramaniam A S Gri ?thUniversity Gold Coast Campus Brisbane Australia ABSTRACT The objective of generating an economical and safe foundation system reducing the settlement rather than eliminating has led to the change in the design philosophy recognising the fact that most structures can tolerate a certain amount of settlement The piled raft analyses and design is three dimensional interaction problems wherein the applied load is transferred by a complicated interaction process between the piles and the raft The necessity to have a relatively simple design procedure so that the preliminary design can give adequate but reasonably accurate data for the ?nal analyses is explained The paper presents such a simple design process in the form of equivalent pier approach by establishing its applicability by applying it to two cases Also the study has brought out the e ?ect of deep compressible deposit sandwiched between two dense layers RÉSUMÉ L ? objectif de créer un système de fondation économique et ?able par la réduction des a ?aissements plutôt que de leur éradication a entra? né un changement dans la philosophie de conception admettant le fait que la plupart des structures sont capables de tolérer un certain nombre d ? a ?aissements Les analyses et la conception du radier sur pieux comportent des problèmes d ? interaction tri dimensionnels o? la charge appliquée est transférée par un processus d ? interaction complexe entre les pieux et le pilier Il est expliqué la nécessité de disposer d ? une procédure de conception relativement simple de manière à ce que la conception préliminaire puisse apporter des données appropriées su ?samment précises pour les analyses ?nales L ? article présente un processus de conception aussi simple sous forme d ? approche de pilier équivalent en prouvant sa faisabilité par son application dans deux cas L ? étude a également révélé les e ?ets du dépôt fortement compressible coincé entre deux couches épaisses KEYWORDS Piled raft Pier Peat INTRODUCTION The design of foundation system for structures that cannot tolerate settlements the aspect of balancing the performance and cost had always been a challenge for the foundation designers Due to the complexity involved in the soil structure interaction analyses required for an optimum design designers have so far been resorting to the traditionally designed pile foundations system permitting very small limiting settlements Even though this approach produces a safe design the economics of the design becomes questionable The objective of generating an economical and safe foundation system reducing the settlement rather than eliminating has led to the change in the design philosophy Keeping the above objective in mind researchers like Burland and subsequently Polous had brought out the use of piles with the raft to reduce the settlement of the raft This had led the advent of the combined piled