SEISMIC IMAGING TO CHARACTERIZE SUBSURFACE GROUND CONDITIONS IN CIVIL CONSTRUCTION

Variable subsurface ground conditions present serious challenges to the civil engineering industry to design, construct, and maintain infrastructure. Accurate knowledge of ground conditions reduces project risk, improves construction performance, prolongs structure life, and prevents waste in over-design. NSA has developed systems that process collected seismic data using tomography and holography techniques to produce detailed, three-dimensional representations of subsurface conditions. Seismic signal waveforms traveling through a complex medium consist of various arrivals from refractions, reflections, scattering, and dispersion. Tomography and holography are proven inversions technologies for estimating location and extent of material property variations causing changes in signal waveforms. This paper will present three case studies describing the types of geotechnical investigations performed by NSA.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0784407444
• Corporate Authors:

  American Society of Civil Engineers

  Geo Institute, 1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Kase, E
  • Ross, T A
• Conference:
  • Geotechnical Engineering for Transportation Projects, Geo-Trans 2004
  • Location: Los Angeles, California
  • Date: 2004-7-27 to 2004-7-31
• Publication Date: 2004

Language

• English

Media Info

• Features: Figures; References;
• Pagination: 9 p.
• Serial:
  • ASCE Geotechnical Special Publication
  • Issue Number: 126
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Civil engineering; Construction; Design; Geotechnical engineering; Ground effect; Holography; Image analysis; Infrastructure; Reflection; Refraction; Risk analysis; Seismic prospecting; Service life; Structures; Tomography; Waveform analysis
• Subject Areas: Bridges and other structures; Construction; Design; Geotechnology; Highways; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00988647
• Record Type: Publication
• ISBN: 0784407444
• Report/Paper Numbers: Volume II
• Files: TRIS
• Created Date: Apr 13 2005 12:00AM