Helical Pile Performance Testing in Less Than Optimum Conditions-PPT Presentation

PPT Presentation

Pdf Summary

The presentation reviews performance testing of helical piles, identifying ASTM D1143 for compression and ASTM D3689 for tension as the gold-standard methods. It recommends a quick-load test using a test pile matching production piles, installed vertically, with vertical reaction anchors. For reliable setup, keep the test frame low, center and level the beam over the pile, preload the reaction anchors, and center the hydraulic cylinder on the test pile.<br /><br />Photographs show tests and installations in locations including Edmonton, Toronto, Brazil, Guatemala, Peru, and Malaysia. The examples highlight practical challenges when ideal testing conditions are unavailable, such as inadequate lateral restraint, angled anchors, large cylinder deflections under load, adverse weather, and limited equipment. The presentation also covers helical pile components and tension-test rig setups.

Keywords

helical piles

performance testing

ASTM D1143

ASTM D3689

compression testing

tension testing

quick-load test

reaction anchors

test pile setup

hydraulic cylinder