2. Solution
This chapter focuses on the geometry and calculations involved in setting out circular curves, tangent lengths, and vertical curves in civil engineering. It emphasizes various methods for calculating angles, lengths, and offsets, as well as practical examples illustrating these concepts. The chapter also covers the transition curves and compound curves critical in roadway design and alignment.
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Sections
Navigate through the learning materials and practice exercises.
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1Solution:
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2Example 2.10:
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2.1Tabulate The Data Needed
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3.1Tabulate The Necessary Data
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4Example 2.12:
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7Example 2.15:
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9Example 2.17:
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10Example 2.18:
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11Example 2.19:
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12Example 2.20:
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13Example 2.21:
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15Example 2.23:
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17Example 2.25:
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19Example 2.27:
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20Example 2.28:
What we have learnt
- Understanding the geometric principles behind circular curves and their application in road design.
- The calculations necessary to determine tangent lengths, curve lengths, and offsets for various types of curves.
- How to execute practical examples involving setting out curves with theodolites and other surveying tools.
Key Concepts
- -- Circular Curve
- A curved path or alignment in civil engineering used to connect two straights, characterized by a constant radius.
- -- Tangent Length
- The straight distance from the point of intersection to the point of curve or tangency.
- -- Transition Curve
- A curve that gradually changes the alignment from a straight path to a circular curve, improving safety and comfort for vehicles.
- -- Deflection Angle
- The angle through which a vehicle must turn to follow a curve, calculated based on the geometry of the curve.
- -- Vertical Curve
- A parabolic curve that connects two different grades on a roadway, improving safety and vision.
Additional Learning Materials
Supplementary resources to enhance your learning experience.