LANDSLIDES: INVESTIGATION AND MITIGATION. CHAPTER 9 - SURFACE OBSERVATION AND GEOLOGIC MAPPING

This chapter begins with a discussion of the duties of the geologist on an existing project that has developed an unstable slope or on a proposed project that has the potential for slope movement. This is followed by a discussion of the work required before field visitation. This involves planning the surface observation and geologic mapping and includes identifying the area of interest and collecting and reviewing geologic and geotechnical information, aerial photographs, and topographic maps. Subsequent sections of this chapter deal with (1) on-site engineering-geologic investigations by reconnaissance observations, engineering-geologic mapping, and reconnaissance instrumentation; (2) detailed ground surveys of landslide sites using the basic survey methods as well as recent advances in survey techniques; (3) data interpretation and presentation; (4) guidance for subsurface investigations; (5) correlation of surface and subsurface data; (6) the need for additional field information; and (7) the cost of surface investigations.

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    • Special Report 247 is also available in hardcover (ISBN 0-309-06151-2). Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
  • Authors:
    • Keaton, Jeffrey R
    • DeGraff, Jerome V
  • Publication Date: 1996

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References; Tables;
  • Pagination: pp 178-230
  • Monograph Title: LANDSLIDES: INVESTIGATION AND MITIGATION
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    Open Access (libre)

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Filing Info

  • Accession Number: 00722498
  • Record Type: Publication
  • ISBN: 030906208X
  • Files: TRIS, TRB, ATRI
  • Created Date: Jun 6 1996 12:00AM