The ministry of education and science of Republic of Kazakhstan Karaganda State Technical University Department of MS and S Laboratory work №3 Discipline: Geodesy Topic: Cameral work in theodolite survey Completed: The student of group GIK 18-3 Kovalenko V. Took: Teacher Yartseva V.F. Karaganda 2019 Cameral work in theodolite survey is composed of calculations and graphical constructions. As a result of the calculations, the planned coordinates of the vertices of the theodolite moves are determined; the ultimate goal of graphical constructions is to obtain a situational plan of the terrain. Cameral processing of measurement results. Performed during the laying of the theodolite moves, begin with the verification and processing of field logs. Repeat all the calculations made in the field, and display the average values of the measured angles and lengths of the sides. From the measurement of the lengths of the lines, calculate the horizontal distances. The lengths measured by the tape are corrected by the corrections for the slope, for the comparison and for the temperature in accordance with the instructions. Calculation of a directional corner of the initial party of the course (binding to basic geodetic network) Make the detailed scheme of points of film-making justification and a geodetic binding. From the catalog write out in the special form of coordinate of starting points and solve the return geodetic problem. On the balanced primychny corners find a directional corner of the initial side of the ground. tan 𝛼Л−С = 𝑌𝐶 − 𝑌Л 𝑋𝐶 − 𝑋Л The directional corner of the initial party of the theodolitic course is calculated: 𝛼Л−2 = 𝛼Л−С + 𝛽1 Increments of coordinates calculate on formulas: ∆𝑦 = sin 𝛼 ∗ 𝑑 ∆𝑥 = cos 𝛼 ∗ 𝑑 The increment of coordinates is calculated to within 0,01m, and can have different signs depending on a directional corner i.e. in what quarter there is this line. Calculate 𝑓𝑦 = ∑ ∆𝑦, 𝑓𝑥 = ∑ ∆𝑥 in increments of coordinates. The theoretical sum of increments of coordinates, in the closed ground has to be equally to zero. Calculate absolute linear not knitting of the course on a formula: 𝑓абс = √𝑓𝑥2 + 𝑓𝑦2 Assessment of accuracy of the executed measurements in the theodolitic course is made in size relative linear nonviscous which is calculated on a formula: 𝑓отн = 𝑓абс 1 ≤ Р 2000 Linear not knitting is distributed in increments of coordinates with the return sign in proportion to lengths of the parties the sum of the corrected increments was equal to zero. On the corrected increments of coordinates calculate consistently coordinates of all tops of the ground. Example: 𝑓𝑦 = ∑ ∆𝑦 = −0. 2 4 𝑓𝑥 = ∑ ∆𝑥 = −0.08 𝑓абс = √(−0,24)2 + (−0,08)2 = 0,25298 𝑓отн = 0,064 = 0,00016 ≤ 0,0005 1560,68 Sheet KSTU Department of MS and S Poi nt Horizont al lengths of the parties calculations of coordinates of the theodolite course Horizontal angles Measured Corrected ° ′ ′′ ° ′ Direction angles ′′ Rhumb ° ′ ′′ 179 25 15 111 10 32 231 28 23 234 13 14 216 58 35 321 25 56 46 52 17 44 24 38 28 43 59 26 58 20 137 29 11 111 10 32 ° ′ ′′ Sine, cosine of rhumbs group GIK 18-3 Kovalenko V. Increase of coordinates Calculated Corrected y x y x 1.00 -99.21 61.02 -23.64 -102.11 -81.26 -114.09 -103.81 -134.16 -178.14 -136.47 171.12 93.22 87.34 68.05 69.49 64.72 118.10 62.66 123.17 167.16 -182.37 A 99,22 111 1 65,45 59 2 42 130,48 177 3 15 177,58 197 4 14 223,00 75 5 32 218,85 94 6 33 127,75 182 7 27 97,28 195 8 40 134,68 181 9 45 138,19 69 10 29 247,42 206 1 18 +09 00 +09 00 +09 30 +09 30 +09 30 +09 30 +09 30 +09 30 +09 00 +09 30 59 177 197 75 94 182 195 181 69 206 45 42 15 14 32 33 27 40 45 29 18 17 09 09 39 39 39 39 39 39 09 39 0.010108 -0.999948 0.932477 -0.361226 -0.782315 -0.622882 -0.811273 -0.584666 -0.601485 -0.798883 -0.623439 0.781871 0.729820 0.683638 0.699794 0.714343 0.480729 0.876868 0.453558 0.891226 0.675765 -0.737116 61.03 -0.01 -102.08 -0.03 -144.06 -0.03 -134.13 -0.03 -136.44 -0.03 93.23 -0.01 68.07 -0.02 64.74 -0.02 62.68 -0.02 167.20 -0.04 0,24 2 P=1560.68 -23.64 0 -81.27 0.01 -103.82 0.01 -178.15 0.01 171.11 0.01 87.33 0.01 69.49 0 118.09 0.01 123.16 0.01 -182.38 0.01 -0.08 Coordinates of points Poi nt y x 845.35 977.69 A 846.35 878.48 1 907.37 854.84 2 805.26 773.58 3 661.17 669.77 4 527.01 491.63 5 390.54 662.75 6 483.76 750.09 7 551.81 819.58 8 616.53 937.68 9 679.19 1060.85 10 846.35 878.48 1