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5CE4 SURVEYING – II |
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L 3 |
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UNIT: 1 |
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Trigonometric Levelling: |
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Methods of trigonometric levelling direct method and |
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reciprocal method, axis Signal corrections. Determination of difference in elevations of |
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points. |
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UNIT: 2 |
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Curve |
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Surveying: |
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Elements of circular (Simple, compound and reverse) curves, |
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transition curves, degrees of curves Methods of setting out circular and transition |
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curves. |
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UNIT: 3 |
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Triangulation: |
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Merits and demerits of traversing, triangulation and trilateration. |
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Grades of triangulation, Strength of figure, field procedure of triangulation. |
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Reconnaissance and selection of triangulation stations. Intervisibility of stations and |
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calculation of the heights of towers. Equipment needed for base line measurement, |
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corrections to base line. Satellite station and base line extension. |
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UNIT: 4 |
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of errors in surveying. The probability curve, its |
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Errors in Surveying: Classification |
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equation and properties, theory of least squares, weight, most probable valve, probable |
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errors, standard errors. Normal equation correlates. |
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Adjustment of Triangulation Figures: |
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Adjustment of levels. Adjustment of |
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triangulations figures, Braced quadrilateral Triangle with central, station. Approximate |
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and method of least squares for figure adjustment, Trilateration. |
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UNIT: 5 |
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Field Astronomy: |
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Definitions of terminology used in Astronomy, Co-ordinate Systems. |
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Relationships between different Co-ordinate systems. Astronomical Triangle, Napier’s |
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Rule. Different methods of determination of Azimuth. |
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Electronic distance measurement and use of Total station. |
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Survey camp: |
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(including exercise on triangulation, topographic, or project survey) with |
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duration of maximum 10 days. |