PRACTICAL USES OF DYNAMIC LOAD TESTING WITH INCREASING ENERGY. IN: CURRENT PRACTICES AND FUTURE TRENDS IN DEEP FOUNDATIONS

Dynamic Load Testing of foundation piles was introduced in Brazil as early as 1981, to fulfill the need of the oil industry for quality control of offshore piles. Dynamic tests were first used on land projects in 1983. Since that time, thousands of piles have been tested using this technique. Local peculiarities like less conservative failure criterions and the prevalent use of restrike tests using drop hammers led to the generalized use of methods based on the application of blows with increasing energy. Theoretical studies of the behavior of piles subjected to blows with increasing energy were made and published by Brazilian engineers. Specific interpretation methods were developed, like the use of graphs relating RMX (Case Method Capacity) with DMX (maximum displacement during the corresponding blow). This paper describes how dynamic load tests with increasing energy are executed, and discusses its use for testing both driven and cast-in-situ piles. Examples are shown to illustrate the various conclusions that can be reached by using those methods.

• Record URL:
  https://doi.org/10.1061/40743(142)22
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0784407436
• Corporate Authors:

  American Society of Civil Engineers

  Geo-Institute
  Reston, VA  United States  20191-4400
• Authors:
  • Beim, J W
• Conference:
  • Contributions in Honor of George G. Gobel
  • Location: Los Angeles California, United States
  • Date: 2004-7-27 to 2004-7-31
• Publication Date: 2004-7

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 390-397
• Monograph Title: CURRENT PRACTICES AND FUTURE TRENDS IN DEEP FOUNDATIONS
• Serial:
  • ASCE Geotechnical Special Publication
  • Issue Number: 125
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Cast in place structures; Dynamic loads; Foundations; Pile driving; Quality control; Support piles; Testing
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00987900
• Record Type: Publication
• ISBN: 9780784407431
• Files: TRIS
• Created Date: Mar 10 2005 12:00AM