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BS EN ISO 22476-5:2023

$189.07

Geotechnical investigation and testing. Field testing – Prebored pressuremeter test

Published By Publication Date Number of Pages
BSI 2023 46
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This document is applicable to pressuremeter tests using cylindrical flexible probes placed in pre-existent boreholes using testing procedures other than the Menard procedure. Pressuremeter tests following the Menard procedure are provided in ISO 22476-4. NOTE          A high-pressure flexible pressuremeter probe which contains transducers for the measurement of radial displacements is also known as flexible dilatometer probe or high-pressure dilatometer probe. This document applies to tests performed in any kind of grounds, starting from soils, treated or untreated fills, hard soils and soft rocks, up to hard and very hard rocks, either on land or offshore. The parameters derived from this test can include stiffness, strength, initial in-situ stress state and consolidation properties.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 European foreword
Endorsement notice
6 Foreword
7 1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
11 3.2 Symbols and abbreviations
12 4 Equipment
4.1 General
16 4.2 Pressuremeter probe
4.3 Connecting lines
4.4 Control unit (CU)
17 4.5 Measurement and control accuracy
4.5.1 Time
4.5.2 Pressure and expansion
4.5.3 Display of readings
4.5.4 Expansion calibration cylinder
5 Test procedures
5.1 Assembly of parts
18 5.2 Calibration of the testing device and corrections of readings
5.3 Pressuremeter test pocket and probe placing
5.4 Test execution
5.4.1 Test loading programmes
19 5.4.2 Reference loading programmes
5.4.3 Readings and recordings before and during the test
20 5.5 End of test
5.6 Backfilling of borehole
5.7 Safety requirements
6 Test results
6.1 General
21 6.2 Corrected pressure, radial displacement and volume
6.3 Apparent pressuremeter moduli
22 6.4 Results
6.4.1 Determination of moduli
6.4.2 Reference loading programme A
23 6.4.3 Reference loading programme B
24 6.4.4 Reference loading programme C
25 7 Reporting
7.1 General
7.2 Contents
27 7.3 Presentation of test results
28 Annex A (normative) Calibration and corrections
36 Annex B (informative) Performing the test
42 Annex C (normative) Accuracy and uncertainties
43 Bibliography
BS EN ISO 22476-5:2023
$189.07