Preparation of a technological design with the development of test stands for carrying out test loads of driven piles (static and dynamic)
The project
Load testing of 400x400 mm driven piles as part of the foundation of MS-11, MS-19 and WD-22 structures in the course of the under construction expressway No. S61 Ostrów Mazowiecka - Szczuczyn
The challenge
The project included the design of the stands and the method of performing twenty-two static and sixty dynamic test loads on driven piles.
The solution
The design of the (static) load test stand consisted of the following.
components:
- a hydraulic actuator that induces a pushing force on the head of the test pile,
- a system of steel beams transferring loads from the actuator to the anchor piles,
- anchor piles transferring pullout loads from the structure to the ground
ground.
An actuator was used to induce a force on the test pile of the design loada
hydraulic actuator with a lifting capacity of min. 2.2 MN.
Dynamic tests, i.e. strain and displacement measurements, were performed using two strain gauges and two accelerometers and a PDA (Pile Driving Analyzer) recorder from PDI.
