теодолитный ход

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