Proof Testing of a Structural Plate Pipe with Varying Bedding and Backfill Parameters. Section 2. Analysis of External Load

摘要

Kyowa, Ormond and Cambridge Contact Soil Stressmeters were placed in an embankment and around the periphery of the 120-in.- (3.05-m-) diameter, 12-gauge, steel, structural plate, DB Culvert under a 188-ft (57-m) overfill. Transducers were scanned periodically as the embankment was constructed. Normal tractions acting at the soil-culvert interface at eight zones of the pipe and tangential tractions at three of those zones have been plotted as functions of overfill. Digitized stresses from these functions have been plotted as profiles at significant overfills and time intervals after fill completion, and interpolated stresses have been established by cubic spline functions. Plots of embankment stresses as functions of overfill are also included.