A Study on the Design of Highway Bridge Pile Foundations in Volcanic Ash Ground

In Japan, foundations to be constructed in volcanic ash ground are generally designed in accordance with the standards for sandy soil. However, it has been found that volcanic ash soil is crushable and has mechanical characteristics different from those of normal sandy soil. Accordingly, vertical loading tests were conducted by using actual piles in 14 construction sites to clarify the bearing mechanism of piles in volcanic ash ground. The results indicated a trend showing that pile shaft friction which contributes mainly to the bearing capacity of the pile was lower for pyroclastic flow deposits of volcanic ash soils than that for normal sandy soils. On the basis of the test results, technical recommendations were proposed for the design of highway bridge pile foundations in consideration of the mechanical characteristics of volcanic ash soil.

• Availability:
  • Find a library where document is available. Order URL: http://www.crcpress.com/product/isbn/9780415621359
• Supplemental Notes:
  • Abstract reprinted with permission from Taylor and Francis.
• Corporate Authors:

  CRC Press/Balkema

  P.O. Box 447
  2300 AK Leiden,   Netherlands 
• Authors:
  • Tomisawa, K
  • Egawa, T
  • Miura, S
• Conference:
  • 2nd International Conference on Transportation Geotechnics (ICTG)
  • Location: Hokkaido , Japan
  • Date: 2012-9-10 to 2012-9-12
• Publication Date: 2012

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Maps; Photos; References; Tables;
• Pagination: pp 635-642
• Monograph Title: Advances in Transportation Geotechnics II

Subject/Index Terms

• TRT Terms: Bearing capacity; Bridge design; Highway bridges; Load tests; Mechanical properties; Pile foundations; Sandy soils; Volcanic ash
• Geographic Terms: Japan
• Subject Areas: Bridges and other structures; Geotechnology; Highways; I24: Design of Bridges and Retaining Walls; I42: Soil Mechanics;

Filing Info

• Accession Number: 01473173
• Record Type: Publication
• ISBN: 9780415621359
• Files: TRIS
• Created Date: Feb 19 2013 3:03PM