00216689

Component

http://onlinepubs.trb.org...rbbulletin/125/125-003.pdf

A PERFORMANCE STUDY WAS CONDUCTED ON ONE OF THE MAJOR DRAINAGE STRUCTURES OF NORTH CAROLINA. THE STRUCTURAL CAPACITY WAS ANALYZED BY OBTAINING DATA ON: (1) THE ENVIRONMENTAL CONDITIONS UNDER WHICH THE PIPE WAS INSTALLED, (2) THE SETTLEMENT AND DEFORMATIONS OF THE BOLTED STRUCTURE, AND (3) THE EXTERNAL PRESSURE GENERATED AROUND THE PIPE STRUCTURE DURING AND AFTER THE CONSTRUCTION OF THE FILL. IT IS CONCLUDED THAT THE CONDUIT IS PERFORMING SATISFACTORILY. THE STRUCTURE HAS ASSUMED A CYLINDRICAL SHAPE WHICH INDICATES THAT THE EXTERNAL EARTH PRESSURE MUST BE SUBSTANTIALLY UNIFORM AROUND THE CULVERT OTHER- WISE THE FLEXIBLE STRAUCTURE WOULD HAVE COLLAPSED BY EXCESSIVE DEFLECTION. THE TOP EARTH LOAD CANNOT BE EXCESSIVELY HIGH. A PROCEDURE IS DESCRIBED FOR THE DIRECT DETERMINATION IN SITU OF LATERAL EARTH PRESSURES EXERTED AGAINST A FLEXIBLE UNDERGROUND CONDUIT.

No 125, pp 58-169, 65 FIG, 15 TAB, 43 PHOT, 46 REF, 1 APP 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.

01410526

HS-023 499

112p

1956

Highway Research Board Bulletin

Digital/other

Conduits; Corrugated pipe culverts; Deformation; Drainage structures; Earth pressure; Embankments; Flexible structures; Ground settlement; Instruments for measuring loads or pressure; Measurement; Performance; Pressure; Underground structures

Lateral pressure

Bridges and other structures; Geotechnology; Highways; Materials

TRIS, TRB

Sep 16 1994 12:00AM

• FACTORS AFFECTING VERTICAL LOADS ON UNDERGROUND DUCTS DUE TO ARCHING
• INFLUENCE OF COMPRESSION AND SHEARING STRAINS IN SOIL FOUNDATIONS ON STRUCTURES UNDER EARTH EMBANKMENTS
• LOAD STUDY OF FLEXIBLE PIPES UNDER HIGH FILLS