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BS EN ISO 22476-1:2023

BS EN ISO 22476-1:2023

$215.11

Geotechnical investigation and testing. Field testing – Electrical cone and piezocone penetration test

Published By Publication Date Number of Pages
BSI 2023 76
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This document establishes equipment, procedural and reporting requirements and recommendations on cone and piezocone penetration tests. NOTE       This document fulfils the requirements for cone and piezocone penetration tests as part of geotechnical investigation and testing according to the EN 1997 series. This document specifies the following features: a)    type of cone penetration test; b)    cone penetrometer class according to Table 2; c)    test categories according to Table 3; d)    penetration length or penetration depth; e)    elevation of the ground surface or the underwater ground surface at the location of the cone penetration test with reference to a datum; f)     location of the cone penetration test relative to a reproducible fixed location reference point; g)    pore pressure dissipation tests. This document covers onshore and nearshore cone penetration test (CPT). For requirements for offshore CPT, see ISO 19901-8.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 European foreword
Endorsement notice
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
3 Terms, definitions and symbols
10 3.1 Terms and definitions
16 3.2 Symbols
19 4 Equipment
4.1 General
4.1.1 Tolerances
4.1.2 Gaps and soil seals
4.2 Cone penetrometer
4.3 Surface roughness and hardness
20 4.4 Cone
21 4.5 Friction sleeve
22 4.6 Filter element
4.6.1 General filter location
4.6.2 Pore pressure u1
23 4.6.3 Pore pressure u2
4.6.4 Pore pressure u3
4.7 Pushrods
4.8 Measuring system
4.8.1 Accuracy
24 4.8.2 Sensors for cone resistance and sleeve friction
4.8.3 Sensor for pore pressure
4.8.4 Sensor for inclination
4.8.5 Sensor for temperature
4.8.6 Measuring of penetration length
4.8.7 Raw data
25 4.9 Thrust machine
5 Test procedures
5.1 Selection of equipment, procedures and evaluation of results
5.1.1 General
5.1.2 Calibration and verification requirements
26 5.1.3 Cone penetrometer class conformity assessment
28 5.2 Position and verticality of thrust machine
5.3 Preparation of the test
29 5.4 Pushing of the cone penetrometer
5.5 Use of friction-reducing techniques
5.6 Frequency of test data recording
5.7 Registration of penetration length
30 5.8 Pore pressure dissipation test (PPDT)
5.9 Test completion
31 5.10 Evaluation of CPT/CPTU in relation to test category
32 5.11 Equipment checks and calibrations
5.12 Safety requirements
6 Test results
6.1 Measured parameters
33 6.2 Correction of parameters
35 6.3 Calculated parameters
7 Reporting
7.1 General
7.2 Reporting of test results
7.2.1 General information
36 7.2.2 Location of the test
7.2.3 Test equipment
37 7.2.4 Test results
7.3 Presentation of test results
39 Annex A (informative) Suitability of test methods
42 Annex B (normative) Maintenance, checks and calibration
60 Annex C (informative) Calibration report example
70 Annex D (normative) Calculation of penetration depth
71 Annex E (informative) Correction of sleeve friction for water pressure
72 Annex F (informative) Preparation of the piezocone
73 Annex G (informative) Friction reduction techniques
74 Bibliography

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BS EN ISO 22476-1:2023
$215.11