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Technical Report Documentation Page

CA-HWY-MR-642114(2)72-19

1. REPORT No. 2. GOVERNMENT ACCESSION No. 3. RECIPIENT'S CATALOG No.

Settlement Study At Bridge Approaches

4. TITLE AND SUBTITLE

 April 1972

5. REPORT DATE

6. PERFORMING ORGANIZATION

Zeiler, Ben; Kleiman, William F.; Smith, Travis; Hirsch, Albin

D.

7. AUTHOR(S)

CA-HWY-MR-642114(2)72-19

8. PERFORMING ORGANIZATION REPORT No.

State of California

Department of Public Works

Division of Highways

Materials and Research Department

9. PERFORMING ORGANIZATION NAME AND ADDRESS 10. WORK UNIT No.

11. CONTRACT OR GRANT No.

12. SPONSORING AGENCY NAME AND ADDRESS Final Report

13. TYPE OF REPORT & PERIOD COVERED

14. SPONSORING AGENCY CODE

15. SUPPLEMENTARY NOTES

Excessive differential settlement of the road surface at bridge abutments creates a driving hazard and often requires periodic

maintenance work. Over 900 field settlement records of approach embankments to structures located throughout California we

collected for analysis. A major portion of the correlational work was accomplished by optical coincidence methods. Settlement

log-time plots were prepared and pertinent soil test data affixed to each plot. Only recorded settlements of the foundation soil o0.20 ft or greater were included in this study. Variables relating time-settlement characteristics to different soil types were anal

Soil information was limited to sample borings and penetrometer data. Actual and contract waiting periods were analyzed in

conjunction with surcharge data. Benefits of surcharge vs. nonsurge data are described.

The failure to find detectable correlation between soil data and other parameters forced the researchers to abandon further wo

this project.

16. ABSTRACT

Settlements, differential settlement, bridge abutements. approach embankments, settlement rate, field measurements, approa

embankments, settlement rate, field measurements, correlations, data processing

17. KEYWORDS

40

18. No. OF PAGES:

http://www.dot.ca.gov/hq/research/researchreports/1972/72-19.pdf 

19. DRI WEBSITE LINK

This page was created to provide searchable keywords and abstract text for older scanned research reports.

November 2005, Division of Research and Innovation

72-19.pdf 

20. FILE NAME

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