Soil collapse from an effective stress perspective : technical note

The behaviour of collapsible soil is often quantified by conducting a Collapse Potential Test or double oedometer test. However, these tests interpret the soil behaviour in terms of total stress, while it is well known that the behaviour of soil is governed by its effective stress. This article show...

Full description

Saved in:
Bibliographic Details
Published in:Journal of the South African Institution of Civil Engineers 2014-10, Vol.56 (3), p.30-33
Main Authors: Heymann, G., Brink, G.
Format: Article
Language:English
Subjects:
Collapse Potential Test
Creep
Double oedometer test
Effective stress
Matric suction
Soil collapse
Unsaturated soil
Vertical strain
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by
cites
container_end_page 33
container_issue 3
container_start_page 30
container_title Journal of the South African Institution of Civil Engineers
container_volume 56
creator Heymann, G.
Brink, G.
description The behaviour of collapsible soil is often quantified by conducting a Collapse Potential Test or double oedometer test. However, these tests interpret the soil behaviour in terms of total stress, while it is well known that the behaviour of soil is governed by its effective stress. This article shows the results of a test conducted on undisturbed residual granite to study the collapse of the soil in terms of effective stress. The test was conducted in a modified oedometer which allowed the incremental addition of water to the sample during the test. The matric suction was quantified as a function of the moisture content of the soil during the test. The results indicate that the reduction in effective stress plays an important role during soil collapse. In addition it was found that much of the collapse settlement may be due to creep which occurs after the reduction in effective stress.
format article
fullrecord <record><control><sourceid>sabinet</sourceid><recordid>TN_cdi_sabinet_saepub_10520_EJC161375</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sabinet_id>10520/EJC161375</sabinet_id><sourcerecordid>10520/EJC161375</sourcerecordid><originalsourceid>FETCH-sabinet_saepub_10520_EJC1613753</originalsourceid><addsrcrecordid>eNqNyr0KwjAUQOEMCtafd7iLYyE3pVZdS0VcdS9puMFITEJu9Pld-gBOBz7OQlQoFdZK4mkl1swvKVWH6liJ_h6dBxO914kJbI5v0AHIWjLFfQm4ZGKGRJnTTGcoZJ7BGe0hxEJbsbTaM-3mbsT-Mjz6a816coHKyJrSZxpRtkqOw63HAzZd2_z7_QA6oDk5</addsrcrecordid><sourcetype>Publisher</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Soil collapse from an effective stress perspective : technical note</title><source>Alma/SFX Local Collection</source><creator>Heymann, G. ; Brink, G.</creator><creatorcontrib>Heymann, G. ; Brink, G.</creatorcontrib><description>The behaviour of collapsible soil is often quantified by conducting a Collapse Potential Test or double oedometer test. However, these tests interpret the soil behaviour in terms of total stress, while it is well known that the behaviour of soil is governed by its effective stress. This article shows the results of a test conducted on undisturbed residual granite to study the collapse of the soil in terms of effective stress. The test was conducted in a modified oedometer which allowed the incremental addition of water to the sample during the test. The matric suction was quantified as a function of the moisture content of the soil during the test. The results indicate that the reduction in effective stress plays an important role during soil collapse. In addition it was found that much of the collapse settlement may be due to creep which occurs after the reduction in effective stress.</description><identifier>ISSN: 1021-2019</identifier><language>eng</language><publisher>South African Institution Of Civil Engineering (SAICE)</publisher><subject>Collapse Potential Test ; Creep ; Double oedometer test ; Effective stress ; Matric suction ; Soil collapse ; Unsaturated soil ; Vertical strain</subject><ispartof>Journal of the South African Institution of Civil Engineers, 2014-10, Vol.56 (3), p.30-33</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,786,790</link.rule.ids></links><search><creatorcontrib>Heymann, G.</creatorcontrib><creatorcontrib>Brink, G.</creatorcontrib><title>Soil collapse from an effective stress perspective : technical note</title><title>Journal of the South African Institution of Civil Engineers</title><description>The behaviour of collapsible soil is often quantified by conducting a Collapse Potential Test or double oedometer test. However, these tests interpret the soil behaviour in terms of total stress, while it is well known that the behaviour of soil is governed by its effective stress. This article shows the results of a test conducted on undisturbed residual granite to study the collapse of the soil in terms of effective stress. The test was conducted in a modified oedometer which allowed the incremental addition of water to the sample during the test. The matric suction was quantified as a function of the moisture content of the soil during the test. The results indicate that the reduction in effective stress plays an important role during soil collapse. In addition it was found that much of the collapse settlement may be due to creep which occurs after the reduction in effective stress.</description><subject>Collapse Potential Test</subject><subject>Creep</subject><subject>Double oedometer test</subject><subject>Effective stress</subject><subject>Matric suction</subject><subject>Soil collapse</subject><subject>Unsaturated soil</subject><subject>Vertical strain</subject><issn>1021-2019</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNqNyr0KwjAUQOEMCtafd7iLYyE3pVZdS0VcdS9puMFITEJu9Pld-gBOBz7OQlQoFdZK4mkl1swvKVWH6liJ_h6dBxO914kJbI5v0AHIWjLFfQm4ZGKGRJnTTGcoZJ7BGe0hxEJbsbTaM-3mbsT-Mjz6a816coHKyJrSZxpRtkqOw63HAzZd2_z7_QA6oDk5</recordid><startdate>20141001</startdate><enddate>20141001</enddate><creator>Heymann, G.</creator><creator>Brink, G.</creator><general>South African Institution Of Civil Engineering (SAICE)</general><scope/></search><sort><creationdate>20141001</creationdate><title>Soil collapse from an effective stress perspective : technical note</title><author>Heymann, G. ; Brink, G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-sabinet_saepub_10520_EJC1613753</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Collapse Potential Test</topic><topic>Creep</topic><topic>Double oedometer test</topic><topic>Effective stress</topic><topic>Matric suction</topic><topic>Soil collapse</topic><topic>Unsaturated soil</topic><topic>Vertical strain</topic><toplevel>online_resources</toplevel><creatorcontrib>Heymann, G.</creatorcontrib><creatorcontrib>Brink, G.</creatorcontrib><jtitle>Journal of the South African Institution of Civil Engineers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Heymann, G.</au><au>Brink, G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Soil collapse from an effective stress perspective : technical note</atitle><jtitle>Journal of the South African Institution of Civil Engineers</jtitle><date>2014-10-01</date><risdate>2014</risdate><volume>56</volume><issue>3</issue><spage>30</spage><epage>33</epage><pages>30-33</pages><issn>1021-2019</issn><abstract>The behaviour of collapsible soil is often quantified by conducting a Collapse Potential Test or double oedometer test. However, these tests interpret the soil behaviour in terms of total stress, while it is well known that the behaviour of soil is governed by its effective stress. This article shows the results of a test conducted on undisturbed residual granite to study the collapse of the soil in terms of effective stress. The test was conducted in a modified oedometer which allowed the incremental addition of water to the sample during the test. The matric suction was quantified as a function of the moisture content of the soil during the test. The results indicate that the reduction in effective stress plays an important role during soil collapse. In addition it was found that much of the collapse settlement may be due to creep which occurs after the reduction in effective stress.</abstract><pub>South African Institution Of Civil Engineering (SAICE)</pub></addata></record>
fulltext fulltext
identifier ISSN: 1021-2019
ispartof Journal of the South African Institution of Civil Engineers, 2014-10, Vol.56 (3), p.30-33
issn 1021-2019
language eng
recordid cdi_sabinet_saepub_10520_EJC161375
source Alma/SFX Local Collection
subjects Collapse Potential Test
Creep
Double oedometer test
Effective stress
Matric suction
Soil collapse
Unsaturated soil
Vertical strain
title Soil collapse from an effective stress perspective : technical note
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-09-23T05%3A27%3A27IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-sabinet&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Soil%20collapse%20from%20an%20effective%20stress%20perspective%20:%20technical%20note&rft.jtitle=Journal%20of%20the%20South%20African%20Institution%20of%20Civil%20Engineers&rft.au=Heymann,%20G.&rft.date=2014-10-01&rft.volume=56&rft.issue=3&rft.spage=30&rft.epage=33&rft.pages=30-33&rft.issn=1021-2019&rft_id=info:doi/&rft_dat=%3Csabinet%3E10520/EJC161375%3C/sabinet%3E%3Cgrp_id%3Ecdi_FETCH-sabinet_saepub_10520_EJC1613753%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_id=info:pmid/&rft_sabinet_id=10520/EJC161375&rfr_iscdi=true