THREE WIRE LEVELING DATA: The following data is a result of a three wire leveling in a proposed project to determine the elevation of an unknown point BM12. 1. Draw an approximate figure of the level route and determine the Elevation of BM12 and do the arithmetic check. Station Backsight HI Foresight Elevation Hair Mean S Hair Mean S reading Reading reading Reading BM10 1.567 1.234 1200 m 0.901 TP1 1.364 1.352 1.008 1.151 0.652 0.950 TP2 0.938 0.835 0.732 0.623 0.526 0.411 TP3 1.043 0.998 0.992 0.698 0.941 0.398 BM11 0.879 1.089 0.692 0.973 0.505 0.857 ТРА 1.217 0.957 1.079 0.682 0.941 0.407 TP5 1.321 1.119 1.105 0.978 0.889 0.837 TP6 0.992 1.091 0.782 0.919 0.572 0.474 BM12 0.957 0.723 0.498
THREE WIRE LEVELING DATA: The following data is a result of a three wire leveling in a proposed project to determine the elevation of an unknown point BM12. 1. Draw an approximate figure of the level route and determine the Elevation of BM12 and do the arithmetic check. Station Backsight HI Foresight Elevation Hair Mean S Hair Mean S reading Reading reading Reading BM10 1.567 1.234 1200 m 0.901 TP1 1.364 1.352 1.008 1.151 0.652 0.950 TP2 0.938 0.835 0.732 0.623 0.526 0.411 TP3 1.043 0.998 0.992 0.698 0.941 0.398 BM11 0.879 1.089 0.692 0.973 0.505 0.857 ТРА 1.217 0.957 1.079 0.682 0.941 0.407 TP5 1.321 1.119 1.105 0.978 0.889 0.837 TP6 0.992 1.091 0.782 0.919 0.572 0.474 BM12 0.957 0.723 0.498
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:THREE WIRE LEVELING DATA:
The following data is a result of a three wire leveling in a proposed project to determine the
elevation of an unknown point BM12.
1. Draw an approximate figure of the level route and determine the Elevation of BM12 and do
the arithmetic check.
Station
Backsight
HI
Foresight
Elevation
Hair
Mean
S
Hair
Mean
S
reading
Reading
reading Reading
BM10
1.567
1.234
1200 m
0.901
TP1
1.364
1.352
1.008
1.151
0.652
0.950
TP2
0.938
0.835
0.732
0.623
0.526
0.411
ТРз
1.043
0.998
0.992
0.698
0.941
0.398
BM11
0.879
1.089
0.692
0.973
0.505
0.857
TP4
1.217
0.957
1.079
0.682
0.941
0.407
TP5
1.321
1.119
1.105
0.978
0.889
0.837
TP6
0.992
1.091
0.782
0.919
0.572
0.474
BM12
0.957
0.723
0.498
2. Determine the length of the leveling route if k = 0.987 and C = 0.30 m
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