Geotechnical investigation and testing - Testing of geotechnical structures - Part 4: Testing of piles: dynamic load testing
Also Known As:
ISO 22477-4:2018 is a standard that outlines the specifications for dynamic load testing of geotechnical structures, specifically piles. The standard provides guidance on methods of testing to assess the resistance of a pile to axial dynamic loads in compression.
The standard covers different methods of testing including dynamic impact testing, pile driving formulae, wave equation analysis, and multi-blow dynamic testing. These methods involve evaluating measurements such as strain, acceleration, and displacement at the pile head with respect to time, blow counts and hammer energy during pile driving, and modeling of the pile, soil, and driving equipment.
ISO 22477-4:2018 is applicable to all pile types mentioned in other relevant standards such as EN 1536, EN 12699, and EN 14199. The standard focuses specifically on dynamic load tests on piles and provides guidance on analysis procedures for interpreting the test results.
The standard distinguishes between investigation tests and control tests. Investigation tests involve loading a sacrificial pile up to the ultimate limit state, while control tests involve loading a pile up to a specified load exceeding the serviceability limit state. These tests serve different purposes, with investigation tests providing general knowledge about a pile type and control tests focusing on specific applications of a pile.
| Edition | 1 |
| ICS Codes | 93.020 - Earthworks. Excavations. Foundation construction. Underground works |
| Language(s) | English |
| File Size | 4.6 MB |
