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 Embankments--Colorado--Evaluation Evaluation Poles (Engineering)--Evaluation Poles (Supports) Roads--Colorado--Embankments--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.
  
  
• Format:
  PDF
• Funding:
  74.90
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:0ca67382e462c98d06a3819a850e6ef190a1f0304f69867fdc56dc3547b4e730
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/18454/dot_18454_DS1.pdf
• File Type:
  [PDF - 1.39 MB ]