BS EN ISO 22476-7:2012
Current
The latest, up-to-date edition.
Geotechnical investigation and testing. Field testing Borehole jack test
Hardcopy , PDF
English
31-03-2013
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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
Describes the equipment requirements, execution of and reporting on borehole jack tests.
| Committee |
B/526/7
|
| DocumentType |
Standard
|
| Pages |
34
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This part of ISO22476 specifies the equipment requirements, execution of and reporting on borehole jack tests.
NOTE This part of ISO22476 fulfils the requirements for borehole jack tests as part of geotechnical investigation and testing according to EN1997-1[1] and EN1997-2.[2]
This part of ISO22476 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.
This part of ISO22476 applies to test depths of ≤100 m and to testing either on land or off-shore.
| Standards | Relationship |
| ISO 22476-7:2012 | Identical |
| EN ISO 22476-7:2012 | Identical |
| BS 5930:2015+A1:2020 | Code of practice for ground investigations |
| BS 5930:2015 | Code of practice for ground investigations |
| 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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