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ILNAS-EN ISO 17892-9:2018 Edition 04/2018
Geotechnical investigation and testing - Laboratory testing of soil - Part 9: Consolidated triaxial compression tests on water saturated soils (ISO 17892-9:2018)
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Abstract

ISO 17892-9:2018 specifies a method for consolidated triaxial compression tests on water-saturated soils. ISO 17892-9:2018 is applicable to the laboratory determination of triaxial shear strength under compression loading within the scope of geotechnical investigations. The cylindrical specimen, which can comprise undisturbed, re-compacted, remoulded or reconstituted soil, is subjected to an isotropic or an anisotropic stress under drained conditions and thereafter is sheared under undrained or drained conditions. The test allows the determination of shear strength, stress-strain relationships and effective stress paths. All stresses and strains are denoted as positive numerical values in compression. NOTE 1 This document provides a test for a single specimen. A set of at least three relatable tests are required to determine the shear strength parameters from these tests. Procedures for evaluating the results are included in Annex B and, where required, the shear strength parameters are to be included in the report. Special procedures such as: a) tests with lubricated ends; b) multi-stage tests; c) tests with zero lateral strain (K0) consolidation; d) tests with local measurement of strain or local measurement of pore pressure; e) tests without rubber membranes; f) extension tests; g) shearing where cell pressure varies, are not fully covered in this procedure. However, these specific tests can refer to general procedures described in this document. NOTE 2 This document fulfils the requirements of consolidated triaxial compression tests for geotechnical investigation and testing in accordance with EN 1997‑1 and EN 1997‑2.

Status

Standard - Active

Origin

Technical Committee :
CEN/TC 341 : Geotechnical Investigation and Testing

Implementation

start of the vote on the project    29/09/2016   date of ratification (dor)    02/02/2018
end of the vote on the project    21/12/2016   date of anouncement (doa)    31/07/2018
start of the vote on the final project    09/11/2017   date of publication (dop)    31/10/2018
end of the vote on the final project    01/01/2018   date of withdrawal (dow)    31/10/2018


Publication Official Journal
of the Grand-Duchy of Luxembourg
21/06/2018
Reference Mémorial A N° 498

Relations

Relations to older standards
CEN ISO/TS 17892-9:2004/AC:2005
CEN ISO/TS 17892-9:2004

Relations to international standards
ISO 17892-9:2018 
ISO 17892-9 

International Classification for Standards (ICS codes) :

13.080.20 : Physical properties of soils
93.020 : Earthworks. Excavations. Foundation construction. Underground works

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