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EN ISO 22476-7:2012

Current

Current

The latest, up-to-date edition.

Geotechnical investigation and testing - Field testing - Part 7: Borehole jack test (ISO 22476-7:2012)

Published date

12-01-2012

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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Equipment
5 Test procedure
6 Test results
7 Reporting
Annex A (normative) - Dimensions of borehole jacks and
        related device factors
Annex B (normative) - Calibration and correction
Annex C (normative) - Field report example
Annex D (informative) - Test example
Annex E (normative) - Placing the borehole jack in the ground
Annex F (normative) - Resolutions and uncertainties
Bibliography

ISO 22476-7:2012 specifies the equipment requirements, execution of and reporting on borehole jack tests.

It specifies the procedure for conducting a borehole jack test in ground stiff enough not to be adversely affected by the drilling operation. Two diametral cylindrical steel loading plates are placed in the ground and opened by pressure. Pressure applied to, and associated opening of, the probe are measured and recorded so as to obtain a stress-displacement relationship of the ground for the range of the expected design stress.

ISO 22476-7:2012 applies to test depths of < 100 m and to testing either on land or off-shore.

Committee
CEN/TC 341
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current

UNI EN 1997-2 : 2007 EUROCODE 7 - GEOTECHNICAL DESIGN - PART 2: GROUND INVESTIGATION AND TESTING
I.S. EN 1997-2:2007 EUROCODE 7 - GEOTECHNICAL DESIGN - PART 2: GROUND INVESTIGATION AND TESTING
DIN EN 1997-2:2010-10 Eurocode 7: Geotechnical design - Part 2: Ground investigation and testing (includes Corrigendum AC:2010)
BS EN 1997-2:2007 Eurocode 7. Geotechnical design Ground investigation and testing

ISO 14688-1:2002 Geotechnical investigation and testing Identification and classification of soil Part 1: Identification and description
ISO 22475-1:2006 Geotechnical investigation and testing Sampling methods and groundwater measurements Part 1: Technical principles for execution
ISO 14689-1:2003 Geotechnical investigation and testing Identification and classification of rock Part 1: Identification and description
ISO 10012:2003 Measurement management systems — Requirements for measurement processes and measuring equipment
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

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