Development of LRFD Recommendations of Driven Piles on Intermediate Geomaterials

Many piles in the Rock Mountain region are driven on Intermediate Geomaterials (IGM). IGM is a transitional geomaterial between soil and hard rock, which is not well defined for the design and construction of driven piles. Reliable static analysis methods have not been developed to estimate the pile resistance on IGM. The resistances of piles driven on IGMs are currently determined using dynamic analysis or static load test methods during construction. These limitations reduce the accuracy of pile resistance estimation, result in lower load and resistance factor design (LRFD) resistance factors, and eventually increase the construction cost. The proposed research is to develop the LRFD recommendations of driven piles on IGMs. The research objectives are to (1) develop advanced static analysis methods for pile resistance estimation on IGM, (2) validate and improve the accuracy of dynamic analysis methods, (3) develop LRFD resistance factors for piles on IGM, and (4) recommend changes and improvements to current pile design and construction practices. The research objectives will be accomplished from seven tasks: data collection, electronic database development, data assessment, pile resistance estimation, LRFD resistance factor calibrations, LRFD recommendations and reporting.

• Record URL:
  https://www.mountain-plains.org/research/details.php?id=548

Language

• English

Project

• Status: Completed
• Funding: $159045
• Contract Numbers:

  69A3551747108

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Mountain-Plains Consortium

  North Dakota State University
  Fargo, ND  United States  58108
• Project Managers:

  Tolliver, Denver

• Performing Organizations:

  Dept. of Civil and Architectural Engineering

  University of Wyoming
  Laramie, WY  United States 
• Principal Investigators:

  Ng, Kam

  Wulff, Shaun

• Start Date: 20210507
• Expected Completion Date: 20230731
• Actual Completion Date: 20221028
• USDOT Program: University Transportation Centers Program
• Source Data: MPC-651

Subject/Index Terms

• TRT Terms: Calibration; Load and resistance factor design; Piles (Supports); Recommendations; Resistance (Mechanics); Soft rock; Validation
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways;

Filing Info

• Accession Number: 01771566
• Record Type: Research project
• Source Agency: Mountain-Plains Consortium
• Contract Numbers: 69A3551747108
• Files: UTC, RIP
• Created Date: May 14 2021 8:15PM