Interpretation of Data from Uphole Refraction Surveys

Abstract

The conventional interpretation of the data from an uphole refraction survey is based on the similarity between a plot of contours drawn on uphole arrival times and a wave-front diagram, which shows successive positions of the wave front produced by a single shot location at the ground surface. However, the two are alike only when the ground consists solely of homogeneous strata, oriented either horizontally or vertically. In this report, the term 'Meissner diagram' is used for the plot of arrival times from the uphole refraction survey in order to maintain the distinction between it and a true wave-front diagram. Where departures from the case of homogeneous, horizontal strata exist, the interpretation of the Meissner diagram is not straightforward, although a partial interpretation in terms of a horizontally stratified system is usually possible. A systematic approach to the interpretation problem, making use of such a partial interpretation, is proposed.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1980
Accession Number
ADA087775

Entities

People

  • Arley G. Franklin

Tags

Communities of Interest

  • Air Platforms
  • C4I

DTIC Thesaurus Topics

  • Algorithms
  • Boundaries
  • Compression Waves
  • Computations
  • Computer Programming
  • Computers
  • Demographic Cohorts
  • Depression
  • Detection
  • Engineering
  • Engineers
  • Geometry
  • Groundwater
  • Intervals
  • Measurement
  • Refraction
  • Travel Time

Readers

  • Calculus or Mathematical Analysis
  • Control Systems Engineering.
  • Groundwater Contamination Remediation.