00495010

Component

http://onlinepubs.trb.org...trr/1989/1235/1235-002.pdf

https://scholar.google.co...rior&publication_year=1989

In 1985, a section of a New Hampshire roadway located over a deposit of peaty organic soil 20 ft (6 m) thick was widened and raised. On the basis of vane shear strengths, the required embankment height increase of 5 ft was implemented in three stages over a 6-month period. Two years after the initial loading, more than 6.5 ft (2 m) of vertical displacement was observed. This paper presents the results of various in situ tests conducted following these events in material located away from and below the road embankment. The tests included plate load tests, self-boring and full-displacement pressuremeter tests, standard penetration tests, field vane tests, and dilatometer tests. Assessment of the effectiveness of these tests in evaluating useful geotechnical soil parameters for embankment design over very soft peaty organic soils is discussed.

This paper appears in Transportation Research Record No. 1235, In Situ Testing of Soil Properties for Transportation. 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

01414213

p. 10-23

1989

Transportation Research Record

0309049628

Figures (12) ; References (20) ; Tables (1)

Case studies; Dilatometers; Dislocation (Geology); Embankments; Evaluation; Measures of effectiveness; Peat soils; Plate bearing test; Pressure gages; Properties of materials; Soil penetration test; Soils; Vane shear tests

Effectiveness; Soil properties; Vertical displacement

Geotechnology; Highways; Materials; I42: Soil Mechanics

TRIS, TRB, ATRI

Jun 30 1990 12:00AM

• ANALYSES OF LATERALLY LOADED DRILLED SHAFTS USING IN SITU TEST RESULTS
• DESIGN PARAMETERS OF COHESIONLESS SOILS FROM IN SITU TESTS
• DEVELOPMENT OF A CHART FOR PRELIMINARY ASSESSMENTS IN PAVEMENT DESIGN USING SOME IN SITU SOIL PARAMETERS
• EVALUATION OF SOIL PARAMETERS FROM PIEZOCONE TESTS
• ITALIAN MOTORWAY SYSTEM: EXPERIENCES WITH IN SITU TESTS AND INCLINOMETER SURVEYS FOR URGENT REMEDIAL WORKS
• LOAD-DEFLECTION RESPONSE OF PILES IN SAND: PERFORMANCE PREDICTION USING THE DMT
• SOIL STRATIFICATION USING THE DUAL-PORE-PRESSURE PIEZOCONE TEST
• STIFFNESS PROFILING OF PAVEMENT SUBGRADES