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Title: LOAD REDUCTION ON A RIGID PIPE: PILOT STUDY OF A SOFT CUSHION INSTALLATION
Accession Number: 00743590
Record Type: Component
Record URL: Availability: Find a library where document is available Abstract: In a project involving the construction of a new link of European Freeway E18, an 800-mm pipe was to be founded on a cushion of expanded polystyrene under an embankment fill of 9.3 m. In a pilot study measurements were taken of soil-pipe contact earth pressures around the circumference of the pipe, vertical earth pressures in the soil above the crown, relative diameter changes of the pipe in the vertical and the horizontal directions, and pipe settlements into the cushion. The design of the complete structure was partly done by using the active design program SPIDA (Soil Pipe Interaction Design and Analysis). The results indicate that the safety margin in the design was greater than first expected because the reinforced standard pipe, designed for only 5 m of fill, was uncracked, even though the height of fill was 9.3 m. The measured deformations of the pipe were smaller than those expected for the concrete to crack. The earth pressure measurements showed a pronounced soil arching effect in the soil above the pipe.
Supplemental Notes: This paper appears in Transportation Research Record No. 1594, Part 2: Structures.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Liedberg, NSDPagination: p. 217-223
Publication Date: 1997
Serial: ISBN: 0309062020
Features: Figures
(8)
; Photos
(1)
; References
(11)
; Tables
(2)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Bridges and other structures; Design; Highways; Safety and Human Factors; I20: Design and Planning of Transport Infrastructure
Files: TRIS, TRB, ATRI
Created Date: Dec 5 1997 12:00AM
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