EN ISO 22477-10:2016 PDF

Overview

EN ISO 22477-10:2016 - "Geotechnical investigation and testing - Part 10: Testing of piles: rapid load testing" defines how to perform rapid load pile tests in which a single pile is subjected to axial compression to measure its load–displacement behaviour and to assess the measured compressive resistance (Rc,m). The standard applies to piles loaded axially in compression and covers all pile types listed in EN 1536, EN 12699 and EN 14199. Tests are limited to rapid load testing only; rapid loading is typically of short duration (commonly less than 1 s relative to the pile’s natural period).

Key topics and technical requirements

• Test scope: Specifies both investigation tests (sacrificial trial piles loaded to ultimate limit state) and control tests (working piles loaded to a specified load above serviceability limits).
• Equipment and measurements: Requirements for loading apparatus, instrumentation and measurement of pile head displacement and applied load to capture accurate load–displacement data.
• Test procedure: Preparatory steps, safety and integrity checks, pile preparation, test execution and post-test pile integrity requirements.
• Data handling and reporting: Minimum contents for test reports and presentation of results so they can be used in design and verification.
• Result analysis: Informative guidance (Annex A) on processing rapid load test data to determine Rc,m and the corresponding load–displacement behaviour, including removal of inertia and soil-dependent dynamic effects so results can be interpreted as static compressive resistance.
• Terminology and definitions: Clear definitions of trial pile, working pile, rapid load, maximum compressive load, and ultimate measured compressive resistance.

Practical applications

• Verifying pile capacity and behaviour during site investigation and commissioning.
• Selecting pile types and dimensions during foundation design validation.
• Quality control for piling works by confirming performance of working piles under rapid loading.
• Input for geotechnical design checks where rapid load test results are to be converted to static resistance for use in design codes.

Who uses this standard

• Geotechnical engineers and foundation designers
• Piling contractors and site supervisors
• Geotechnical testing laboratories and inspection bodies
• Consultants preparing test specifications and interpreting pile test data
• Regulators and clients requiring standardized verification of pile performance

Related standards

• EN 1997-1 (Eurocode 7) - use of pile test results in design; partial factors and design integration
• EN 1536, EN 12699, EN 14199 - pile type specifications referenced by EN ISO 22477-10:2016

Keywords: EN ISO 22477-10:2016, rapid load testing, pile testing, geotechnical investigation, measured compressive resistance, pile load tests, load–displacement behaviour.