ENGE201
Basic Surveying
Syllabus
- Introduction (4 hours)
- Historical background to the development of surveying
- Principle of surveying
- Traditional and modern surveying instruments
- Modern disciplines of surveying and their significance
- Maps and map scale
- Theory of Measurements and Errors (4 hours)
- Units of measurements and conversion
- Significant figures, rounding of numbers
- Accuracy and precision
- Types, sources of errors
- Instruction on field works
- Linear Survey (5 hours)
- Instruments used for linear survey
- Types of chain and tapes
- Terms related to chain surveying
- Principles of chain surveying
- Operation in chaining
- Testing and adjustment of chain
- Methods of chaining in various conditions
- Errors in chaining and taping
- Obstacles in chaining
- Tape corrections
- Compass Survey (8 hours)
- Definitions and terminologies
- Types of compasses
- Temporary adjustment of compass
- Designation of bearing
- Types of bearing
- Included angles and bearing
- Local attraction, magnetic declination
- Typical compass problem
- Compass traversing, errors and adjustment
- Plane Table Survey (4 hours)
- Principles of plane table survey
- Methods of plane table survey
- Advantages and disadvantages of plane table survey
- Leveling (6 hours)
- Introduction
- Principle of leveling and differential leveling
- Leveling instruments and accessories (Abney level, Clinometer, Tilting level, Automatic level)
- Terminology used in leveling and their uses
- Types of leveling
- Two peg and Princeton test
- Temporary and permanent adjustment of level
- Booking and calculation of reduced level
- Sources of errors
- Theodolite and Theodolite Traversing (6 hours)
- Theodolite instruments and its construction
- Terminology used and its functions
- Temporary adjustment of theodolite
- Measurement of angles
- Traversing and its types
- Traversing method and adjustment
- Balancing of traverse
- Plotting of traverse
- Tacheometry (8 hours)
- Basic principle of tacheometry
- Instruments used for tacheometry
- Methods of tacheometry
- Analytical lens
- Derivation of tacheometry formula
Practicals
- Horizontal, Vertical and slope distance measurement
- Chain survey and detailing
- Plane table survey
- Compass survey
- Two peg test and differential leveling, profile levelling
- Angular measurement using theodolite
- Preparation of topographic map