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Title: SEISMOGRAPH OPERATIONS BY MAINE STATE HIGHWAY COMMISSION
Accession Number: 00228568
Record Type: Component
Abstract: REFRACTION SEISMOGRAPH EXPLORATION METHODS ARE DESCRIBED AS APPLIED TO HIGHWAY SOIL SURVEYS IN MAINE. THE GROWTH AND EXPANSION OF THE SOILS PROGRAM NECESSITATED THE DEVELOPMENT OF A RAPID METHOD FOR THE IDENTIFICATION AND DELINEATION OF SOIL AND BEDROCK. THE SELECTION OF THE SEISMIC RATHER THAN THE ELECTRICAL METHOD APPEARED TO BE THE LOGICAL CHOICE IN VIEW OF THE SPEED WITH WHICH RESULTS CAN BE OBTAINED AND DATA RELIABILITY. THE PROBLEMS OF EQUIPMENT SELECTION ARE DISCUSSED. MOST IMPORTANT OF THESE WAS THE DECISION IN FAVOR OF A 12-CHANNEL SYSTEM OVER THE RECENTLY AVAILABLE SINGLE-CHANNEL COUNTER SYSTEM. THE EQUIPMENT INSTALLATION IS DESCRIBED WITH EMPHASIS ON ITS RUGGED CONSTRUCTION AND ITS ABILITY TO GIVE LONG, TROUBLE-FREE SERVICE. THE PERSONNEL REQUIREMENTS ARE SPECIFIED AND THE DUTIES OF EACH OF THE FIVE MEN ON THE FIELD CREW ARE DESCRIBED. THE PAPER ALSO DESCRIBES THE OPERATING PROCEDURE OF THE SEISMOGRAPH. THE GREATEST OPERATIONAL PROBLEM IS THE INTERPRETATION OF DATA, AND SPECIFIC EXAMPLES OF TIME- DISTANCE PLOTS AND THEIR SOLUTIONS ARE PRESENTED. A COMPARISON IS MADE OF THE ORIGINAL DATA WITH BORINGS, TEST PITS AND ROAD CUTS TO DEVELOP CONFIDENCE IN THE SEISMIC METHOD. /AUTHOR/
Supplemental Notes: 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.
Monograph Accession #: 01410040
Language: English
Authors: Bigelow Jr, NelsonPagination: pp 9-15
Publication Date: 1965
Serial: Media Type: Digital/other
Features: Appendices
(1)
; Figures
(4)
; Tables
(2)
TRT Terms: Uncontrolled Terms: Geographic Terms: Old TRIS Terms: Subject Areas: Administration and Management; Geotechnology; Highways
Files: TRIS, TRB
Created Date: Aug 15 2004 2:37AM
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