THE APPLICABILITY OF THE WEAP-86 PILE CAPACITY PREDICTION METHOD FOR CONNECTICUT SOILS AND BEHAVIOR OF A SHEETPILE WALL FOR STABILIZATION OF A SLOPE IN PORTLAND. FINAL REPORT

Pile capacity as predicted by the WEAP-86 version of the Wave Equation Analysis of Piles was compared to the capacity measured by field load tests. The WEAP-86 finite difference computer solution package applied to end-bearing H-piles and friction-type monotube piles in sand shows the following trends: (1) Selection of quake and damping values does not appear to greatly influence predicted pile capacity (plus or minus 15%); (2) Percent skin friction assumed for monotube piles changes predicted capacity about 15%; (3) Residual Stress Analysis should be used when modelling monotube-type piles; (4) Default values of quake and damping yield predicted capacities that are statistically lower than the measured capacities; and (5) WEAP-86 provides the user with some insight into the pile driving process and effects of various properties on the pile stresses and capacities. The Phase II objective was to monitor the performance of steel PZ-35 sheeting used in conjunction with steel HP 10 x 53 battr piles as a method of stabilizing a highway embankment against slope movement. Conclusions were as follows: (1) The maximum bending moment in the sheetpile appears to occur about 10 feet from the bottom of the pile; (2) The magnitude of the maximum moment is uncertain as strain gage measurements and inclinometer data do not compare well; (3) Te batter/sheetpile wall appears to have stabilized the slope against continued outward movement; and (4) The continued use of electrical resistance type strain gages in harsh environments is not recommended.

• Corporate Authors:

  University of Connecticut, Storrs

  Department of Civil and Environmental Engineering, 261 Glenbrook Road
  Storrs, CT  United States  06269-2037

  Connecticut Department of Transportation

  Bureau of Planning and Research, 24 Wolcott Hill Road
  Wethersfield, CT  United States  06109
• Authors:
  • Long, R P
  • Demars, K R
  • Shaheen, W A
  • Mekagaroon, V
• Publication Date: 1988-10

Media Info

• Features: Figures; References; Tables;
• Pagination: 55 p.

Subject/Index Terms

• TRT Terms: Alternatives analysis; Batter piles; Bending moments; Embankments; End bearing piles; Field tests; Forecasting; Friction piles; Inclinometers; Performance evaluations; Pile driving; Residual stress; Sand; Sheet piling; Soil stabilization; Steel sheets; Strain gages; Wave equations
• Uncontrolled Terms: Field measurements; Stabilization
• Old TRIS Terms: Monotube piles; Pile bearing capacities; Pile friction; Steel sheeting; Wave equation formula
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00486225
• Record Type: Publication
• Report/Paper Numbers: JHR 88-181
• Files: TRIS, STATEDOT
• Created Date: Aug 31 1989 12:00AM