ISO INTERNATIONAL STANDARD 18674-1 First edition 2015-05-15 Geotechnical investigation and testing Geotechnical monitoring by field instrumentation - Part 1: General rules Reconnaissance et essais géotechniques - Surveillance géotechnique par instrumentation in situ Partie 1: Regles générales Reference number ISO 18674-1:2015(E) TSO International Organization for Standardization @ IS0 2015 ng Institute of Standardization 5956617 vided by IHS under ted without license from IHS IS0 18674-1:2015(E) COPYRIGHTPROTECTEDDOCUMENT IS02015,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 0111 Fax+41227490947 copyright@iso.org www.iso.org Intenationai br PrganizationforStandardization I by IHS unde Not for Resale, 2015/8/6 09:52:20 etworking permitted without license from IHS IS0 18674-1:2015(E) Contents Page Foreword ..iv 1 Scope 2 Normative references .1 3 Terms and symbols ..2 3.1 Terms 2 3.2 Symbols .4 4 Principal requirements ..5 4.1 Geotechnical monitoring in connection with geotechnical design .5 4.2 .5 Geotechnicalmonitoringinconnectionwithspecificguestions 4.3 Requirements of a geotechnical monitoring project. .5 4.4 Geodetic measurements ..6 4.5 Safety requirements .6 5 Requirements of a geotechnical monitoring system. .6 5.1 General .6 5.2 Robustness .7 5.3 Influencing factors. .7 5.4 Redundancy. .7 5.5 Stability of sensor signal .7 5.6 Function check and calibration ..8 6 Location of measuring points and geotechnical parameters. ..8 6.1 Location of measuring points ..8 6.1.1 The measuring points can be located at free surfaces, at the interface between any two media, or inside of a medium. ..8 6.2 Measurement and monitoring of geotechnical parameters. ..8 7 Carrying out the measurements. ..9 8 Data processing and verification ...9. 9 Reporting ..10 9.1 Installation report .10 9.2 Monitoring report. .11 Annex A (normative) Minimum requirements on content of instrument data sheets ..13 Annex B (normative) Geotechnical measurements in boreholes ..14 Annex C (informative) Field measurements in connection with the design and construction of geotechnical structures ..17 Annex D (informative) Measurement and monitoring of geotechnical key parameters. ..19 Annex E (informative) Types of instruments and monitoring methods commonly used. ..21 Bibliography .27 iii Institute of Standardization 5956617 thout license from IHS