ISO INTERNATIONAL STANDARD 17892-5 First edition 2017-02 Geotechnical investigation and testing Laboratory testing of soil - Part 5: Incremental loading oedometer test Reconnaissance et essais géotechniques - Essais de laboratoire sur lessols- Partie 5: Essai de chargement par palier a I'oedométre Reference number ISO 17892-5:2017(E) International Organization for Standardization @ IS0 2017 HEJIANG INSTOFSTANDARDIZATIONC15956617 IS0 17892-5:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS02017,PublishedinSwitzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax+412274909 47 copyright@iso.org www.iso.org Intenationai br PrganizationforStandardization icensee-ZHEJIANG INST OF STANDARDIZRoISQ s1.7 - All rights reserved I by IHS unde etworking permitted without license from IHS IS0 17892-5:2017(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions 4 Symbols. 5 Equipment ..3 6 Test procedure ..6 6.1 General ..6 6.2 Specimen preparation .6 6.2.1 Selection of preparation method .6 6.2.2 Trimming from extruded or block sample 6.2.3 Extrusion from tube of diameter larger than the oedometer ring .7 6.2.4 Recompacted specimens. 6.3 Measurement.. .7 6.4 Preparation of apparatus .7 6.4.1 Assembly of cell 7 6.4.2 Assembly in load frame .8 6.5 Loading. ..8 6.5.1 Loading sequence .8 6.5.2 Application of loads .9 6.6 Dismantling. .9 7 Test results. .10 7.1 General .10 7.2 Initial values .10 7.2.1 General ..10 7.2.2 Initial water content ..10 7.2.3 Initial bulk and dry density .10 7.3 Compressibility characteristics .10 7.3.1 General ..10 7.3.2 Specimen height ..10 7.3.3 Vertical strain. .11 7.3.4 Void ratio. ..11 7.3.5 Compression-stress diagram. .12 8 Test report. .12 8.1 Mandatory reporting .12 8.2 Optional reporting. ..13 Annex A (normative) Calibration, maintenance and checks ..14 Annex B (informative) Additional calculations .17 Bibliography. .26 iii See=ZHEJIANG INSTOFSTANDARDIZATION C15956617 ed without license from IHS Not for Resale, 2017/5/11 02:34:03