DYNAMIC TESTING OF CLAY SUBGRADES FOR PAVEMENT DESIGN

DYNAMISK PROEVNING AV LEIRE FOR DIMENSJONERING AV VEGER

This thesis deals with dynamic testing of clay as a subgrade material. In order to simulate the dynamic stresses in the subgrade, triaxial tests with pulsating loads were carried out on undrained, undisturbed specimens from two different sites in the Trondheim rogion. A servo-controlled electrohydraulic test equipment (mts) was used for the test. A triaxial chamber was specially designed and developed for this purpose. A program for dynamic testing of clay in the triaxial chamber for road design purposes has also been developed. The main feature of this program is running of multiple stage tests exploring the effects of one parameter while the other test conditions are kept constant. It was found that the test results could best be interpreted in terms of effective stresses. Well-known basic models were mainly used. However, some further developments in interpretation of the test results were made and several interesting relationships were derived. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/8290345003
• Corporate Authors:

  Norwegian Institute of Technology

  Institutt for Veg-og Jernbanebygging
  N-7034 Trondheim,   Norway 
• Authors:
  • Horvli, I
• Publication Date: 1979-10

Language

• Norwegian

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: n.p.

Subject/Index Terms

• TRT Terms: Clay; Deformation; Dynamic tests; Pavement design; Pore water pressures; Stresses; Structural analysis; Subgrade (Pavements); Subgrade materials; Tests; Triaxial shear tests
• ITRD Terms: 4177: Clay; 5595: Deformation; 3055: Pavement design; 5762: Pore water pressure; 5575: Stress (in material); 5573: Stress analysis; 2950: Subgrade; 6255: Test; 5566: Triaxial
• Subject Areas: Design; Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00311851
• Record Type: Publication
• Source Agency: Norwegian Road Research Laboratory
• ISBN: 82-90345-00-3
• Report/Paper Numbers: Middelese Nr 20 Monograph
• Files: ITRD, TRIS
• Created Date: May 21 1981 12:00AM