n a certain road construction, it was decided to connect a forward tangent of 3% and a back tangent of -5% by a 200 meter symmetrical parabolic curve. It was later discovered that the grade intersection at station 10 +100; whose elevation is 100m fall on a rocky section with the exposed boulder at elevation 102.67m. To avoid rock excavation, the project engineer decided to adjust the vertical parabolic curve in such a way that the curve will just clear the rock without altering the position of PC and the grade of the tangents. Determine the stationing and the elevation of the new PT
n a certain road construction, it was decided to connect a forward tangent of 3% and a back tangent of -5% by a 200 meter symmetrical parabolic curve. It was later discovered that the grade intersection at station 10 +100; whose elevation is 100m fall on a rocky section with the exposed boulder at elevation 102.67m. To avoid rock excavation, the project engineer decided to adjust the vertical parabolic curve in such a way that the curve will just clear the rock without altering the position of PC and the grade of the tangents. Determine the stationing and the elevation of the new PT
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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In a certain road construction, it was decided to connect a forward tangent of 3% and a back tangent of -5% by a 200 meter symmetrical parabolic curve. It was later discovered that the grade intersection at station 10 +100; whose elevation is 100m fall on a rocky section with the exposed boulder at elevation 102.67m. To avoid rock excavation, the project engineer decided to adjust the vertical parabolic curve in such a way that the curve will just clear the rock without altering the position of PC and the grade of the tangents. Determine the stationing and the elevation of the new PT.
Please also provide a sketch of the curve thank you
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