Optimization of stabilization of highway embankment slopes using driven piles : phase I.

Details

• Creators:
  Kiousis, Panos D. ; Griffiths, D.V. ; Stewart, Jared A.
• Corporate Creators:
  Colorado School of Mines
• Subject/TRT Terms:
  • Embankment foundations
  • Embankments
  • Poles (Supports)
  • Evaluation
  • Roads--Colorado--Embankments--Evaluation
  • Embankments--Colorado--Evaluation
  • Poles (Engineering)--Evaluation
• Publication/ Report Number:
  CDOT-2010-8
• Resource Type:
  Tech Report
• Geographical Coverage:
  Colorado
• Edition:
  Final.
• Corporate Publisher:
  Colorado. DTD Applied Research and Innovation Branch
• Abstract:
  This study determined the feasibility of using driven piles to stabilize highway embankment slopes. The activities ; performed under this study were a detailed literature review, a national survey of state DOTs, a review of inspection and ; stabilization mitigation reports, targeted field inspections, a cost comparison analysis, and a finite element study. The ; results of this study show that driven piles can be a cost-effective solution to stabilizing highway embankment slopes. ; The literature review showed that there has been significant research done concerning the lateral capacity of piles. This ; research tends to be focused on different applications, but still shows that piles have significant lateral capacity. The ; survey conducted shows that several DOTs have used driven piles to stabilize highway embankment failures and most of ; these departments would recommend future use. Also three DOTs have performed similar research using plastic pins to ; stabilize embankments. The site visits allowed the research team to identify two sites, the Muddy Pass slide and also the ; Rye slide, as potential sites for investigation under Phase II of the project. These slides in particular had broad shoulders ; along the highway that provide better accessibility. The cost comparison analysis showed that for a particular slope, ; driven piles would cost $41 per linear foot of road stabilized. This was compared to drilled shafts and launched soil nails ; which had estimated costs of $32 and $130 per linear foot, respectively. The finite element study showed that the factor ; of safety for a stabilized slope could be significantly improved with pile installation.
  More +
• Format:
  PDF
• Funding:
  74.90
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/18454/dot_18454_DS1.pdf
• File Type:
  [PDF - 1.39 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:0ca67382e462c98d06a3819a850e6ef190a1f0304f69867fdc56dc3547b4e730