WebThe purpose of survey. Contour intervals for flat country are generally small, eg. 0.25m, 0.5m, 0.75 m etc. For a steep slope in hilly area is greater, eg. 5m, 10m, 15 m etc. ... Direct Method: In the direct method, the contour to be plotted is actually traced on the ground. Points which happen to fall on a desired contour are only surveyed ... WebHowever, broadly speaking there are two methods of surveying: 1. Direct methods 2. Indirect methods. Direct Methods It consists in finding …
Contouring methods, maps, uses – The Constructor Dot
WebJan 4, 2010 · This method is convenient in hilly terrain with level stations chosen at high points so as to command a large area from each. On Thursday 15th October 2009, Survey Contour was performed on Parking Area of F and G block. Instruments The Instruments used in the survey were: Automatic Level Levelling … http://www.gcekjr.ac.in/pdf/lectures/2024/7150III_4th%20Semester_Civil%20Engineering.pdf fishing gear construction ppt
2) Contours Final Report PDF Contour Line Surveying - Scribd
Webintersection of the water surface of a still lake or pond with the surrounding ground represents a contour line. The process of tracing contour lines on the surface of earth is called contouring. A contour map gives the idea of the altitudes of the surface features as well as their relative positions in a plan. 3 (No Transcript) 4 WebJan 2, 2024 · HII STUDENTS ,.....I AM BALVEER SINGH NAYAK .Dear students :- If my lectures are helpful to you please do s... WebMay 13, 2024 · 3. Levelling is an important aspect of the pipeline survey as it is used to ensure a suitable slope of the land that will allow a smooth flow of the liquid inside the pipe. 4. It is also vital for the preparation of contour maps. 5. It is necessary for the preparation of topographic maps. 4. Types of Levelling in Surveying a. Direct Levelling can be traced to cost objects