1. A grade of -4.2% grade intersects a grade of +3.0% at Station 11 + 488.00 of elevations 20.80 meters. These two center gradelines are to be connected by a 260 meter vertical parabolic curve. a) At what station is the cross-drainage pipes be situated? b) If the overall outside dimensions of the reinforced concrete pipe to be installed is 95 cm, and the top of the culvert is 30 cm below the subgrade, what will be the invert elevation at the center? PLEASE SOLVE IT USING THE EQUATIONS FOR A PARABOLA. (y=Ax2+Bx+C) DO NOT SOLVE THE REQUIRED USING THE GRADE DIAGRAM.
1. A grade of -4.2% grade intersects a grade of +3.0% at Station 11 + 488.00 of elevations 20.80 meters. These two center gradelines are to be connected by a 260 meter vertical parabolic curve. a) At what station is the cross-drainage pipes be situated? b) If the overall outside dimensions of the reinforced concrete pipe to be installed is 95 cm, and the top of the culvert is 30 cm below the subgrade, what will be the invert elevation at the center? PLEASE SOLVE IT USING THE EQUATIONS FOR A PARABOLA. (y=Ax2+Bx+C) DO NOT SOLVE THE REQUIRED USING THE GRADE DIAGRAM.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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1. A grade of -4.2% grade intersects a grade of +3.0% at Station 11 + 488.00 of
elevations 20.80 meters. These two center gradelines are to be connected by a 260
meter vertical parabolic curve.
a) At what station is the cross-drainage pipes be situated?
b) If the overall outside dimensions of the reinforced concrete pipe to be installed is
95 cm, and the top of the culvert is 30 cm below the subgrade, what will be the
invert elevation at the center?
PLEASE SOLVE IT USING THE EQUATIONS FOR A PARABOLA. (y=Ax2+Bx+C)
DO NOT SOLVE THE REQUIRED USING THE GRADE DIAGRAM.
Transcribed Image Text:1. A grade of -4.2% grade intersects a grade of +3.0% at Station 11 + 488.00 of
elevations 20.80 meters. These two center gradelines are to be connected by a 260
meter vertical parabolic curve.
a) At what station is the cross-drainage pipes be situated?
b) If the overall outside dimensions of the reinforced concrete pipe to be installed is
95 cm, and the top of the culvert is 30 cm below the subgrade, what will be the
invert elevation at the center?
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