Proceedings of the 27th Annual Conference on Deep Foundations, 2002, San Diego, CA "The Time Factor in Design and Construction of Deep Foundations", (DFI)
Improved Pile Economics: High Design Stresses and Remote Pile Testing
Jim Frazier, Garland Likins, Frank Rausche, George Goble
Tradition has often dictated low design load stresses on piles. Such traditions often developed prior to modern static or dynamic pile testing methods and perhaps result from a few limiting situations. These low stress limits were then broadly applied, even in cases where the piles could carry substantially higher loads. With sufficient testing to prove the design, higher design loads may present significant overall savings to the project owner. The cost of the testing then becomes an insignificant cost compared to the potentially great benefit of increased pile loadings. To confirm higher load possibilities for driven piles, the pile is tested either statically or dynamically. Further savings and increased testing efficiency result from remote dynamic pile testing. This paper presents a project where design stresses were considerably increased as a result of additional testing and use of remote dynamic pile testing equipment.
|article #1236; publication #61 (AM-2002)|