BS EN ISO 22476-4:2012 specifies the equipment requirements, execution of and reporting on the Ménard pressuremeter test.
The Ménard pressuremeter test is performed by the radial expansion of a tricell probe placed in the ground. During the injection of the liquid volume in the probe, the inflation of the three cells first brings the outer cover of the probe into contact with the pocket wall and then presses on them resulting in a soil displacement. Pressure applied to and the associated volume expansion of the probe are measured and recorded so as to obtain the stress-strain relationship of the soil as tested.
Contents for BS EN ISO 22476-4:2012 includes:
Scope
Normative references
Terms, definitions and symbols
Terms and definitions
Symbols
Equipment
General description
Pressuremeter probe
Pressure and volume control unit (CU)
Connecting lines
Injected liquid
Measurement and control
Data logger
Test procedure
Assembling the parts
Calibration and corrections
Pressuremeter pocket and probe placing
Preparation for testing
Establishing the loading programme
Establishing the differential pressure
Expansion
Back-filling of the pockets
Safety requirements
Test results
Data sheet and field print-out
Corrected pressuremeter curve
Calculated results
Reporting
General
Field report
Test report
This British Standard is the UK implementation of EN ISO 22476-4:2012. It partially supersedes BS 5930:1999+A2:2010, which is currently being revised in order to remove conflicting material.
ISO 22476 consists of the following parts, under the general title Geotechnical investigation and testing — Field testing:
- Part 1: Electrical cone and piezocone penetration test
- Part 2: Dynamic probing
- Part 3: Standard penetration test
- Part 4: Ménard pressuremeter test
- Part 5: Flexible dilatometer test
- Part 7: Borehole jack test
- Part 9: Field vane test
- Part 10: Weight sounding test [Technical Specification]
- Part 11: Flat dilatometer test [Technical Specification]
- Part 12: Mechanical cone penetration test (CPTM)
