GI3034 Geodetic Control Survey and Adjustment Syllabus:

GI3034 Geodetic Control Survey and Adjustment Syllabus – Anna University Regulation 2021

COURSE OBJECTIVES:

 To introduce the rudiments of control surveying and geodetic principles to Geoinformatics Engineers.
 To learn the various methods of geodetic control surveying to solve the real world problems.
 To introduce the basics of Astronomical Surveying.

UNIT I HORIZONTAL CONTROL SURVEYING

Definition – Uses and Establishment of Horizontal control – Methods: Triangulation, Traversing and Trilateration – Classification and accuracy – Instruments: Theodolite, Total Station and GNSS – Field procedure for Triangulation, Traversing and Trilateration: Horizontal angle measurements methods – Base line measurement – Elimination of blunder and systematic errors – Computation of weight of observation for length and angle.

UNIT II ADJUSTMENT OF HORIZONTAL CONTROL

Introduction – simple adjustment methods – Error propagation and linearization – Least squares adjustment method for Triangulation, Traversing and Trilateration – least squares adjustment of indirect Observations – least squared adjustment of observations only.

UNIT III VERTICAL CONTROL SURVEYING

Definition – Uses and Establishment of Vertical control – Methods: Sprit levelling, Reciprocal levelling, Trigonometric levelling, GNSS Surveying and Precise Levelling – Instruments: Dumpy level, Tilting level, Auto level, Digital level, Total Station and GNSS – Field procedure for different methods – Elimination of blunder and systematic errors – Computation of weight of observation

UNIT IV ADJUSTMENT OF VERTICAL CONTROL

Introduction – simple adjustment methods – Error propagation and linearization – Least squares adjustment method for Level Net and Trigonometrical levelling – least squares adjustment of indirect Observations – least squared adjustment of observations only.

UNIT V COORDINATE COMPUTATION

Plane and Spherical coordinate system – Computation of plane coordinate for horizontal control point of Triangulation, Traversing and Trilateration stations – Computation of Spherical coordinate for horizontal control point of Triangulation, Traversing and Trilateration stations – Computation of bearing and length from plane coordinates – Computation of forward azimuth, backward azimuth and length from spherical- coordinates

TOTAL: 45 PERIODS
COURSE OUTCOMES:

On completion of the course, the student is expected to
CO 1 Apprise various methods used for horizontal control surveying and the process involved
CO 2 Develop the error identification and adjustment methods for horizontal control
CO 3 Apprise various methods used for vertical control surveying and measurement process
CO 4 Develop methods for identification of error and its adjustment
CO 5 Derive the 3-dimensional coordinates for adjusted observations

TEXT BOOKS:

1. T.P.Kanetkar and S.V.Kulkarni, Surveying and Levelling, Parts1 & 2, Pune Vidyarthi Griha Prakashan, Pune, 2008
2. Dr.B.C.Punmia, Ashok K.Jain and Arun K Jain, Surveying Vol.I & II, Lakshmi Publications Pvt Ltd, New Delhi, Sixteenth Edition, 2016

REFERENCES

1. R. Subramanian, Surveying and Levelling, Oxford University Press, Second Edition, 2012.
2. James M. Anderson and Edward M. Mikhail, Surveying, Theory and Practice, Seventh Edition, McGraw Hill 2001
3. Bannister and S. Raymond, Surveying, Seventh Edition, Longman 2004
4. S.K. Roy, Fundamentals of Surveying, Second Edition, Prentice‘Hall of India 2004
5. K.R. Arora, Surveying Vol I & II, Standard Book house, Twelfth Edition 2013
6. C.Venkatramaiah, Textbook of Surveying, Universities Press, Second Edition, 2011