Knowledge in chain surveying

Principle of surveying

Principle of surveying and working of the whole part.

Element of surveying and classification of surveying

The element of surveying and classification of surveying

basic civil engineering surveying unit 4 and 5 notes

Module –I (10 Hrs) 1. Concept of Surveying- Definition of surveying, Classification, Principle, Accuracy 2. Linear Measurement- Different methods of direct measurement instrument for chaining, Ranging, Chaining on uneven slopping ground, Errors in Chaining, Corrections. 3. Chain Surveying – Chain triangulation, Survey stn., lines, locating ground features, field work, instruments for setting out basic problems in chaining, obstacles in chaining Module –II (10 Hrs) 4. Compass Surveying – Principles use of Prismatic Compass, Measurement of bearings, Conversion of bearings, Local attraction, Correction of compass traverse. 5. Plane Table Survey- Principles, Advantages and disadvantages, Equipment, Accessories and their uses. Methods of plane table survey. Two point and three point problems. Module –III (10 Hrs) 6. Levelling- Types of levelling and their uses, Permanent adjustment, Curvature and refraction effects. 7. Contouring-Characteristics and uses of contours. Methods of contouring. Module –IV (10 Hrs) 8. Theodolite Survey – Application in Height and distance measurements. Permanent adjustment of transit theodolite, methods of repetitions and reiterations. 9. Curve Setting – Simple circular curve setting by chain, tape & theodolite 10. Minor Survey Instruments – Box-sextant, Planimeter, Pantagraph, their working principles and uses.