1887

oa Civil Engineer in South Africa - The settlement performance of a raft supporting a 27-storey hotel on estuarine deposits in Durban : technical paper

Volume 30, Issue 10
  • ISSN : 0009-7845

 

Abstract

The raft analysis and design, site investigation and choice of material parameters are described, as well as the subsequent monitoring of its settlement performance. Levelling studs and a magnetic borehole extensometer were installed to monitor raft settlements and compression of particular soil horizons. The maximum settlement measured over five years to April 1988 was 36 mm. The key parameters in raft design are discussed. These include sol1 parameters, applied loading, contact pressure distribution, stress distribution with depth below the raft, relative raft stiffness and time-dependent settlement.

Die fondamentondersoek, keuse van materiaaleienskappe en die ontleding en ontwerp van die vlotfondament, sowei as die kontrolering van die vlot se werkverrigting en sakking, word beskryf. Nivelleerknoppe en 'n magnetiese boorgat-verlenglngsmeter is geïnstalleer om die vlotsakking asook die samedrukklng van die verskillende grondhorisonne te kontroleer. 'n Maksimum sakking van 36 mm is oor 'n tydperk van vyf jaar tot April 1988 gemeet. Die kernparameters wat die vlotontwerp beinvloed, word bespreek. Dl6 parameters sluit onder andere die grondparameters, aangewende las, kontakdrukverspreidlng, verandering van spanningsverspreiding met diepte onder die vlot, relatiewe vlotstyfheid en die tyd-sakkingsverhouding in.

Loading full text...

Full text loading...

Loading

Article metrics loading...

/content/civeng1/30/10/EJC25051
1988-10-01
2016-12-10

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error