Tacheometric surveying is a method of surveying in which the horizontal and vertical distances of relative points are determined without using any sophisticated instruments such as chain, tape, etc 5 Theodolite Surveying The theodolite is an instrument that is used to measure the horizontal and vertical angles It allows surveyors to "triangulate" the position of objects in aTriangulation is a surveying method that measures the angles in a triangle formed by three survey control points Using trigonometry and the measured length of just one side, the other distances in the triangle are calculated The shape of the triangles is important as there is a lot of inaccuracy in a long skinny triangle, but one with base angles of about 45 degrees is idealArithmetic check 1 Last RL – First RL = – = 0158 m 2 ∑BS – ∑FS = 7561 – 7719 = 0158 m 3 ∑Rise – ∑Fall = 4932 – 5090 =0158 m Hence checked Question no 3 The following readings were taken with a level and 4m staff having initial BM=100 m
What Is Leveling 5 Different Types Of Leveling Methods
