Fundamentals of surveying
Fundamental of surveying Surveying:It is an art of determining relative position of point with respect to a reference surface Above or blow that surface and presented either graphically or numerically. Types of surveying 1. Plane surveying: In this, the earth surface is to be considered as a plane, Spherical shape is to be neglected. Remember: Plane survey is used for small area. 2. Geodetic survey: In this, actual shape of earth is to be considered and the earth curvature should be taken into account. Remember: 1. Geodetic survey is used for large area. 2. Area greater than 195.5 kilometre square.But before It was 260km square. 3.Geodetic survey is done by Survey of India 4. Mumbai sea port is taken as mean sea level in India. Classification of surveying 1. According to surface nature or purpose. A. Topographical survey: This Survey is used to obtain details of natural or artificial features on the earth. B. Hydrographic survey: This Survey is to be done on or near wa...
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