Consider the following running leveling circuit (Fig.1). D L=400m L=250 m A L=500m Figure 1: Differential leveling The elevation of the point A is HA = 100m. The following table (Tab.1) present the result of a leveling survey made. Table 1: Survey results BS HI Fs Elevation Distance Correction Adj* Elev A 1.555 100.000 500 B 2.100 0.335 350 1.800 1.564 400 D 3.325 2.647 250 A 4.056 1) Calculate the elevations of the different points in the table. 2) Calculate the misclosure error by using the compass method. 3) Calculate the adjusted elevations of the different point? L=350 m

Consider the following running leveling circuit (Fig.1). D L=400m L=250 m A L=500m Figure 1: Differential leveling The elevation of the point A is HA = 100m. The following table (Tab.1) present the result of a leveling survey made. Table 1: Survey results BS HI Fs Elevation Distance Correction Adj* Elev A 1.555 100.000 500 B 2.100 0.335 350 1.800 1.564 400 D 3.325 2.647 250 A 4.056 1) Calculate the elevations of the different points in the table. 2) Calculate the misclosure error by using the compass method. 3) Calculate the adjusted elevations of the different point? L=350 m

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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From the given data of a differential leveling as shown in the tabulation: Backsight Foresight Elevation Station (m) (m) (m) BM12 4.64 209.65 1 5.80 5.06 2 2.25 5.02 BM13 6.02 5.85 3 8.96 4.94 4 8.06 3.22 9.45 3.71 12.32 2.02 BM14 1.98 a) Find the difference in elevation of station 5 and station 2, b) Find the difference in elevation of station 6 and station 3. c) Find the elevation of BM14. 96
B. Double-Rodded Leveling 3. Complete differential level notes for the information shown and perform the customary arithmetic check. STATION BS HI FS STATION 1.722 BM1 127.378 m 1.722 ΤΡΙΗ 2.623 1.382 TP1L 2.789 1.522 TP2 H 3.089 0.899 TP2 L 3.214 0.714 ТРЗ Н 1.521 2.452 TP3 L 1.632 2.678 ТРА Н 2.333 1.113 TP4 L 2.589 1.523 TP5 H 0.667 2.877 TP5 L 0.986 2.543 3.521 BM2 3.214
1. For the given set of data of differential leveling as shown in the tabulation: Station Backsight (m) Foresight (m) Elevation BM1 5.68 400.00 1 7.25 6.29 2 3.53 6.25 7.26 7.08 BM2 9.92 5.57 4 8.06 4.45 9.56 4.94 BM3 1.98 a. Complete the differential notes b. Find the difference in elevation of Station 5 and Station 3 c. Find the difference in elevation of Station 5 and Station 1 d. Find the elevation of BM3
From the given data of a differential leveling as shown in the tabulation: Foresight (m) Backsight Elevation Station (m) (m) BM12 4.64 209.65 1 5.80 5.06 2 2.25 5.02 BM13 6.02 5.85 3 8.96 4.94 4 8.06 3.22 5 9.45 3.71 6 12.32 2.02 BM14 1.98 a) Find the difference in elevation of station 5 and station 2. b) Find the difference in elevation of station 6 and station 3. c) Find the elevation of BM14.
A line of levels was run from station A to station B. The leveling was continued to a BM of elevation 40 m. The stadia readings were obtained as follows. What is the elevation of station A? What is the elevation of station B? BS HI FS IFS ELEV REMARKS 1.195 A 0.445 2.370 2.150 0.995 0.720 B 1.465 0.260 2.630 0.905 1.305 40.00 BM Choices: 37.655 m 37.523 m 37,950 m 38.201 m
2) Given the following data: Table 1: Differential Leveling Observations Station A TP1 B TP2 A Elevation 13.869 m 11.445 m 9.643 m 11.189 m 13.875 m Notes Known and Fixed Temporary Point of Interest Temporary Close Loop a. What is the loop misclosure? b. What is the corrected elevation of point B using an adjustment by setups? 12
A Tachometer is set up at an intermediate point on a survey line PQ and the following observations were made on a vertically held staff. Staff intercept 1.235 m 1.115 m Axial hair readings 2.445 m 1.335 m Staff station Vertical angle 15° 20 ' 50" 12° 40 ' 10 " i) Compute length of the line PQ. 2.5 ii) Compute R.L of Q, if R.L of P is 189.66 m 2.5
ANSWER KEY: PROBLEM 5.10K1=102.2495mPROBLEM 5.11 D=150.7275m∆h= 33.8483m
From the given data of a differential leveling as shown in the tabulation: Sta B.S. (m) FS (m) Elev (m) 1 5.87 392.25 2 7.03 6.29 3 3.48 6.25 4 7.25 7.08 5 10.19 5.57 6 9.29 4.45 7 4.49 Find the difference in elevation of station 7 and station 5 (m) Find the difference in elevation of station 7 and station 4 (m) Find the elevation of the highest station (m) Find the elevation of the lowest station (m)
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A-15 m- 33 m Q2) The figure to the right shows a rectangle ABCD, in which A, B, and C are the stations where staff readings were obtained with a level set up at E and D. The observed readings are given in Table. 20 m Staff reading at level location A B C 1.85 0.803 D 2.42 1.361 1.659 48 m If A is a benchmark having elevation of 70 m. Note: the deflection angle in Line of sight (5) is + 0.1146 degree. Level 1. calculate the correct elevations B and C 2. if the height of instrument at E = 1m, and at D= 1m, what is the height difference between D and E
From the given data of a differential leveling as shown in the tabulation: STA BS FS ELEV 1 5.87 2 7.03 6.29 3.48 6.25 7.25 7.08 10.19 5.57 390.69 9.29 4.45 7 4.94 What is the difference in elevation of station 7 and station 4? What is the difference in elevation of station 1? 4. 5,