6-) Plan-view sketches of benchmark leveling runs are shown in Figure. Along each line representing a sight is the value of the rod reading for that sight. The numbering of the TPs shows the direction of the level run. Place the data in the form of field notes (use Collimation Method). Include the arithmetic check. Assuming that the average length of each BS and FS is 20 m, determine the accuracy of the survey. 0.796 1.839 1.470 BN2 v3.043 BM 1 2.167 2.939 Elev: 22.750m 1.459 1.672 0.932 TP1 TP2

6-) Plan-view sketches of benchmark leveling runs are shown in Figure. Along each line representing a sight is the value of the rod reading for that sight. The numbering of the TPs shows the direction of the level run. Place the data in the form of field notes (use Collimation Method). Include the arithmetic check. Assuming that the average length of each BS and FS is 20 m, determine the accuracy of the survey. 0.796 1.839 1.470 BN2 v3.043 BM 1 2.167 2.939 Elev: 22.750m 1.459 1.672 0.932 TP1 TP2

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Q.3 A level circuit is shown in figure. The survey, needed for local engineering project, commenced at BM 35, the elevation of new benchmarks 36, 37, 38 and 39 were determined, and then the level survey was looped back to BM 35, the point of commencement. Fined the adjusted new BMs. ВМ 35 Elevation(m) 185.000(fixed) 35 36 37 38 39 35 184.242 187.299 186.251 188.397 184.933 BM 36 0.9 km. вм 35 0.8 km OBM 37 0.8 km 0.6 km BM 39 BM 38 0.7 km
N Rod ++ 50 1+50 1+75 2.6 Complete the set of differential leveling notes in Table 2-5, and perform the arithmetic 2.5 Prepare a set of profile leveling notes for the survey in Figure 2-34. In addition to comput- ing all elevations, show the arithmetic check and the resulting error in closure. check. 5.11 4.66 3.98 1.20 1.80 TP 2 4.42 4.30 2.01 Known Elevation is 402.78 4.72 TP 1 BM 61 Elevation = %3D 396.74 FIGURE 2-34 5-35 ()
Table 1. Differential Leveling To determine relative elevations of points by Differential Leveling Fill the blanks to complete the table. STA BS (m) HI (m) FS (m) ELEV (m) BM1 1.595 519.846 ТР1 1.354 1.085 TP2 520.437 518.782 BM2 1.943 1.358 ТРЗ 1.129 ТР4 1.107 1.033 520.215 BM3 1.396 522.012 ТР5 522.391 521.376 ТР6 522.873 1.105 TP7 1.656 523.632 BM4 522.897
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