The effect of bedding errors on the accuracy of plate load tests

A series of plate load tests were conducted at the experimental farm of the University of Pretoria. The test areas were levelled by means of three surface preparation methods namely, i) a thin layer of plaster of Paris; ii) a thin layer of well-graded sand and iii) by using only hand tools. In ad...

Full description

Bibliographic Details
Main Author: Barnard, Hendrik Francois Taljaard
Other Authors: Heymann, Gerhard
Language:en
Published: University of Pretoria 2014
Subjects:
Online Access:http://hdl.handle.net/2263/40828
Barnard, HFT 2013, The effect of bedding errors on the accuracy of plate load tests, MEng dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/40828>
id ndltd-netd.ac.za-oai-union.ndltd.org-up-oai-repository.up.ac.za-2263-40828
record_format oai_dc
spelling ndltd-netd.ac.za-oai-union.ndltd.org-up-oai-repository.up.ac.za-2263-408282020-06-02T03:18:19Z The effect of bedding errors on the accuracy of plate load tests Barnard, Hendrik Francois Taljaard Heymann, Gerhard hennie.barnard@aurecongroup.com Plate load tests Methods Thin layer of plaster of paris Thin layer of well-graded sand Using only hand tools Test apparatus UCTD A series of plate load tests were conducted at the experimental farm of the University of Pretoria. The test areas were levelled by means of three surface preparation methods namely, i) a thin layer of plaster of Paris; ii) a thin layer of well-graded sand and iii) by using only hand tools. In addition, a modified plate load test was designed to eliminate the effect of bedding errors that occur during these tests. Telescopic probes were used to measure the relative displacement at two points below the centre of the plate. The main objective of this research project was to first quantify the bedding errors that occur during plate load tests. Secondly, to evaluate the three different surface preparation methods used in plate load tests to achieve a levelled and smooth test surface, and lastly to evaluate the effectiveness of using telescopic probes in routine plate load tests to eliminate the effects of bedding errors. The stiffness values, determined from the vertical displacement of the plate, were compared with the internal stiffness values determined by means of the telescopic probes. All stiffness values were compared with continuous surface wave (CSW) measurements performed on the same material. The test apparatus, methods and results are discussed in this dissertation. To my Dissertation (MEng)--University of Pretoria, 2013. gm2014 Civil Engineering unrestricted 2014-07-17T12:10:45Z 2014-07-17T12:10:45Z 2014-04-08 2013 Dissertation http://hdl.handle.net/2263/40828 Barnard, HFT 2013, The effect of bedding errors on the accuracy of plate load tests, MEng dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/40828> E14/4/2013 en © 2013 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. University of Pretoria
collection NDLTD
language en
sources NDLTD
topic Plate load tests
Methods
Thin layer of plaster of paris
Thin layer of well-graded sand
Using only hand tools
Test apparatus
UCTD
spellingShingle Plate load tests
Methods
Thin layer of plaster of paris
Thin layer of well-graded sand
Using only hand tools
Test apparatus
UCTD
Barnard, Hendrik Francois Taljaard
The effect of bedding errors on the accuracy of plate load tests
description A series of plate load tests were conducted at the experimental farm of the University of Pretoria. The test areas were levelled by means of three surface preparation methods namely, i) a thin layer of plaster of Paris; ii) a thin layer of well-graded sand and iii) by using only hand tools. In addition, a modified plate load test was designed to eliminate the effect of bedding errors that occur during these tests. Telescopic probes were used to measure the relative displacement at two points below the centre of the plate. The main objective of this research project was to first quantify the bedding errors that occur during plate load tests. Secondly, to evaluate the three different surface preparation methods used in plate load tests to achieve a levelled and smooth test surface, and lastly to evaluate the effectiveness of using telescopic probes in routine plate load tests to eliminate the effects of bedding errors. The stiffness values, determined from the vertical displacement of the plate, were compared with the internal stiffness values determined by means of the telescopic probes. All stiffness values were compared with continuous surface wave (CSW) measurements performed on the same material. The test apparatus, methods and results are discussed in this dissertation. To my === Dissertation (MEng)--University of Pretoria, 2013. === gm2014 === Civil Engineering === unrestricted
author2 Heymann, Gerhard
author_facet Heymann, Gerhard
Barnard, Hendrik Francois Taljaard
author Barnard, Hendrik Francois Taljaard
author_sort Barnard, Hendrik Francois Taljaard
title The effect of bedding errors on the accuracy of plate load tests
title_short The effect of bedding errors on the accuracy of plate load tests
title_full The effect of bedding errors on the accuracy of plate load tests
title_fullStr The effect of bedding errors on the accuracy of plate load tests
title_full_unstemmed The effect of bedding errors on the accuracy of plate load tests
title_sort effect of bedding errors on the accuracy of plate load tests
publisher University of Pretoria
publishDate 2014
url http://hdl.handle.net/2263/40828
Barnard, HFT 2013, The effect of bedding errors on the accuracy of plate load tests, MEng dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/40828>
work_keys_str_mv AT barnardhendrikfrancoistaljaard theeffectofbeddingerrorsontheaccuracyofplateloadtests
AT barnardhendrikfrancoistaljaard effectofbeddingerrorsontheaccuracyofplateloadtests
_version_ 1719316275544457216