Surveying

Updated: Dec 29, 2020

Fundamental Cocept of Surveying

Introduction

Plane Surveying

Geodetic Surveying

Scales

Error Due to use of wrong scale

Error Due to InCorrect Length of chain or tape

Most Probable Value

Linear Mesurements

Tape Corrections

Limiting Length of offset

Compass Surveying and theodolite

Important terms

Designation of Bearing

Transverse Surveying

Latitude and Departure

Independent co-ordinate

Closing Error

Adjustment of closing error

Balancing the trasverse

Bowditch method

Transit method

Axis method

Levelling

Defination

Reduced level

Bench mark

Back Sight

Fore Sight

Intermediate Sight

Height of instrument

Arithmetic Check

Reciprocal levelling

Curvature Correction

Refraction Correction

Combine Correction Due to curvature and refraction

Distance of visible horizon

Sensitiveness of bubble tube

Countring

Calculation of Area and volume

Genral method of computing area

Volume mesurement

Tacheometric,curve and hydrographic surveying

Stadia method

Curve

Hydrographic Surveying

The tides

Defination

Assumption made by equilibrium theory of tides

Vulgar Establishment

Triangulation

Defination

Signal and tower

Routine of Trigulation Survey

Intervisibility and Height of stations

Field Astronomy

Relationship between Coordinates

Terrestrial Latitude and Longitude

Nautical Mile

Sperical Triangle

Different Position of star w.r.t Observer

Photogrammetric Surveying

Scale of vertical photograph

Scale of tilted photograph

Overlap in Photographs

Number of photograph to cover given area

Photogrammetry

Terresterial photogrammetry

Aerial Photogrametry

Photo theodolite

Horizontal and verical angles from terrestrial photograph

Elevation of a point by phographic mesurement

Aerial Photogrammetry

Important Definations

Relation between principle point,plumb point and isocenter

Scale of a vertical photograph

Different scale

Relief Displacement

Irrigation Engineering

Soil moisture

Duty and delta

Relation between duty and delta

Conumptive use determination by use of equations

Irrigation Efficiencies

Irrigation Requirement of crops

Design of stable channel

Kennedy's Theory

Lacey's Theory

Lindley's Theory

Lining of canals

Design of lined canals

Sedimentation Transport Mechanics

Design of Unlined canal


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