A-3.2% grade meets a 8.3% grade at a vertex (El. 143.7m) directly under an overpass bridge having underside elevation of 159.64m. A 5.5 meters clearance under the bridge and the center of the curve was observed. Determine the elevation of the invert on center when its location from PC is 78.2m. The pipe has an outside diameter of 1 meters and a thickness of 61.2mm. The backfill is 1 meters in depth. The bridge is having a width of 13.2 meters.
A-3.2% grade meets a 8.3% grade at a vertex (El. 143.7m) directly under an overpass bridge having underside elevation of 159.64m. A 5.5 meters clearance under the bridge and the center of the curve was observed. Determine the elevation of the invert on center when its location from PC is 78.2m. The pipe has an outside diameter of 1 meters and a thickness of 61.2mm. The backfill is 1 meters in depth. The bridge is having a width of 13.2 meters.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A -3.2% grade meets a 8.3% grade at a
vertex (El. 143.7m) directly under an
overpass bridge having underside
elevation of 159.64m. A 5.5 meters
clearance under the bridge and the
center of the curve was observed.
Determine the elevation of the invert
on center when its location from PC is
78.2m. The pipe has an outside
diameter of 1 meters and a thickness of
61.2mm. The backfill is 1 meters in
depth. The bridge is having a width of
13.2 meters.
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