Bulgarian Institute for Standardization
Standards – always a step ahead
Phone: +359 2 8174 523, +359 2 8174 504
E-mail: info@bds-bg.org
1797 Sofia, 13 "Lachezar Stanchev" Str., "Izgrev" Complex
ID number: 175079183, VAT number: BG175079183
Main menu

БДС EN ISO 22477-4:2018

Geotechnical investigation and testing - Testing of geotechnical structures - Part 4: Testing of piles: dynamic load testing (ISO 22477-4:2018)

Sep 18, 2018

General information

60.60     Sep 18, 2018



European Standard



The standard is being translated and is in the "Standardization editing" state

Appropriate for SMEs



Language in which you want to receive the document


ISO 22477-4:2018 establishes the specifications for the execution of dynamic load tests in which a single pile is subject to an axial dynamic load in compression.
ISO 22477-4:2018 outlines the methods of testing required to allow assessment of pile resistance to be determined from the following methods and procedures described in EN1997-1:2004+A1:2013:
a) dynamic impact testing ? determination of pile compressive resistance by evaluation of measurements of strain and acceleration and or displacement at the pile head with respect to time;
b) pile driving formulae ? evaluation of pile compressive resistance from blow counts and hammer energy during pile driving;
c) wave equation analysis ? evaluation of pile compressive resistance from blow counts by modelling of the pile, soil and driving equipment;
d) multi-blow dynamic testing ? evaluation of pile compressive resistance from a series of blows designed to generate different levels of pile head displacement and velocity.
ISO 22477-4:2018 is applicable to piles loaded axially in compression.
ISO 22477-4:2018 is applicable to all pile types mentioned in EN 1536, EN 12699 and EN 14199.
The tests considered in this document are limited to dynamic load tests on piles only.
NOTE 1 ISO 22477‑4 can be used in conjunction with EN1997-1:2004+A1:2013. Numerical values of partial factors for limit states from pile load tests to be taken into account in design are provided in EN 1997‑1. For design to EN 1997‑1 the results from dynamic load tests will be considered equivalent to the measured compressive resistance Rc,m after being subject to appropriate analysis.
NOTE 2 Guidance on analysis procedures for dynamic load testing results is given in Annexes A, B, D, E and F.
ISO 22477-4:2018 provides specifications for:
i) investigation tests, whereby a sacrificial pile is loaded up to ultimate limit state;
ii) control tests, whereby the pile is loaded up to a specified load in excess of the serviceability limit state.
NOTE 3 Generally, an investigation test focuses on general knowledge of a pile type; a control test focuses on one specific application of a pile.

Life cycle


БДС EN ISO 22477-4:2018
60.60 Standard published
Sep 18, 2018

Related project

Adopted from EN ISO 22477-4:2018

Adopted from ISO 22477-4:2018


Аn opinion on draft and published standards at national, European and international level can be given at stage 40.20 Public Enquiry, 90.20 Systematic review and 95.20 Proposal for withdrawal for pure national standards.

The members of technical committees with active participation have the obligation to vote on drafts at stage 30.20 Committee voting and 50.20 Formal Vote as well.

An opinion on the document can be submitted by clicking on the "Login" button, if you have an account. If you do not have an account, you need to click on the "Login" button, then register by creating your account and return to this draft/standard.