Evaluation of wick drain performance in Virginia soils.

Details

• Creators:
  Burns, Susan E ; Cline, Matthew J
• Corporate Creators:
  Virginia. Dept. of Transportation ; Virginia Transportation Research Council (VTRC) ; University of Virginia. Department of Civil Engineering
• Subject/TRT Terms:
  • Vertical drains--Evaluation--Virginia
  • Drainage--Virginia
• Publication/ Report Number:
  FHWA/VTRC 03-CR21
• Resource Type:
  Tech Report
• Geographical Coverage:
  Virginia
• Edition:
  Final contract report.June 2003.
• Corporate Publisher:
  Virginia Transportation Research Council (VTRC)
• Description:
  Prefabricated vertical drains (PVD), also known as wick drains, are commonly used to accelerate the consolidation of fine-grained soils in order to reduce future settlements and increase shear strength. Various drain designs are currently on the market, with significant variations in price. This variability of designs makes the performance highly product specific. Tests were carried out to assess the behavior of several wick drains in Virginia soils. Drains were subjected to crimping, lateral pressure, and consolidation, with the resulting impact on the flow rate. All tests were performed in the laboratory to ensure controlled boundary and initial conditions. Significant differences in the performance of wick drains were evaluated. The performance was quantified based on the percentage reduction in flow capacity during flow in a crimped position, percentage reduction in flow capacity under lateral stress, and percentage reduction in the consolidation time. Test results identified the Ameridrain AD607 and Mebra-Drain MD-88 as themost effective drains among those studied.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/19589/dot_19589_DS1.pdf
• File Type:
  [PDF - 1.68 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:cf1bc13d94f4d7a5eb48831afca87b7c17b617b47ad855ef2c4b459d2a910d28995366a148b762939a11cb5b6fdb3549ec2e1852bce6ddeacba869f09f8d685b