Static pile load test
The static load test is the most accurate and reliable method to determine the bearing capacity of the pile tip, the shaft friction and deformation behavior of a pile.
Over the pile which will be test loaded an assembly is placed to determine the reaction force. If desired, secondairy piles or for instance grout anchors can be used. Also, in the case of load tests of thrust piles, a ballast system can be used. The ballast can consist of stackable material like concrete or steel blocks. The load is transferred to the pile head by means of a jack in which the load which is delivered to the pile head is being measured with a elekctronice pressure box. The settlement of the pile head and pile tip can be regularly measured with the aid of a precision spirit level apparatus or measuring devices. The piles can also be instrumented by installing various extension and pressure gauges at various depths.
Depending on the purpose of the test the testing procedure is determined according NEN-EN 1997-1, CUR guideline 236, " Essai statique de pieu isolé sous charge axiale' and / or 'Axial pile loading test – Part 1: Static Loading" further specified. Usually, 6 to 8 equal load steps are being applied until the predetermined (succumb) load at which only the force and the displacement of the pile head (electronic) are measured and recorded. If tested piles have been instumented it is possible to measure and register forces as well as displacement on deeper levels and based on this obtained data the foundation design can be granted and / or optimized by changing calculation factors of piles.
APTS can supply the necessary materials and equipment for the static load test and can carry out the implementation and elaboration of the guidance of execution of the test.
For further information or quotation without commitment please contact us. We will be more than happy to help.