DYNAMIC PHENOMENA IN LAYERED STRUCTURES

MUCH EXPERIMENTAL AND THEORETICAL WORK IS BEING DONE NOW IN FRANCE RELATED TO THE APPLICATION OF VIBRATION TECHNIQUES TO ROAD STRUCTURES. THIS PAPER IS CONCERNED WITH THE APPROACH THROUGH THE THEORY OF ELASTICITY. AN ANALYSIS IS OFFERED OF SOME SPECIAL CASES OF DYNAMIC PHENOMENA IN LAYERED SYSTEMS, SO AS TO BRING FORTH SOME SIMPLE AND GENERAL RULES, AND ALLOW A ROUGH INTERPRETATION OF THE EXPERIMENTAL RESULTS. AMONG THESE PHENOMENA ARE /A/ IN A SEMI-INFINITE MEDIUM, THE DYNAMIC EFFECTS DUE TO A TRANSIENT VEHICLE /ROLE OF THE RAYLEIGH WAVE/, /B/ FREE WAVES IN LAYERED SYSTEMS /NAMELY, ONE LAYER ON SUBGRADE/ WHEN THE LAMES PARAMETERS OF THE TWO MATERIALS ARE IN SOME CHARACTERISTICAL RATIOS /RAYLEIGH WAVES/, AND /C/ ONE OR TWO LAYERS ON SUBGRADE /SOME REMARKS ON LOVE WAVES/. THE RESULTS THUS OBTAINED CAN BE EXPLAINED BY THE REFLECTION AND REFRACTION THEORY OF ELASTIC WAVES ALLOWING GENERALIZATION TO ANY MEMBER OF LAYERS. THE PAPER ALSO DISCUSSES SOME IDEAS ON THE RELATIVE IMPORTANCE OF STATIC AND SPECIFICALLY DYNAMIC EFFECTS DEPENDING ON THE DISTANCE OF THE SOURCE OF DISTURBANCE. /AUTHOR/

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrr/1963/39/39-008.pdf
• 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
• Authors:
  • Ayramesco, A
• Publication Date: 1963

Media Info

• Media Type: Print
• Features: Figures; Photos; References;
• Pagination: pp 154-165
• Monograph Title: Stresses in soils and layered systems
• Serial:
  • Highway Research Record
  • Issue Number: 39
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Highways; Modulus of elasticity; Pavement layers; Rayleigh waves; Reflection; Refraction; Statics; Stresses; Structures; Subgrade (Pavements); Theory; Vehicles; Vibration
• Uncontrolled Terms: Transient stress
• Old TRIS Terms: Layered system mechanics; Static conditions
• Subject Areas: Bridges and other structures; Highways; Pavements; Vehicles and Equipment;

Filing Info

• Accession Number: 00206191
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Mar 3 1994 12:00AM