A 1" reading theodolite having a multiplying constant of 100 and an additive constant of 0 was centred and levelled a height of 1.48m above a point C of reduced level 46.87 A levelling staff was held vertically at points D and L in turn and the readings shown in the table below were taken Calculate (i)the reduced levels of points D and L (ii) the horizontal length of DL Staff Staff Readings (m) Vertical circle readings Horizontal circle readings D 3.240, 3.047, 2.853 87° 38' 53" 56° 49' 31" L 2.458, 2.230, 2.002 92° 21' 36" 98° 07' 18"

A 1" reading theodolite having a multiplying constant of 100 and an additive constant of 0 was centred and levelled a height of 1.48m above a point C of reduced level 46.87 A levelling staff was held vertically at points D and L in turn and the readings shown in the table below were taken Calculate (i)the reduced levels of points D and L (ii) the horizontal length of DL Staff Staff Readings (m) Vertical circle readings Horizontal circle readings D 3.240, 3.047, 2.853 87° 38' 53" 56° 49' 31" L 2.458, 2.230, 2.002 92° 21' 36" 98° 07' 18"

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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Worked examples: Use of stadia Tacheometry Formulae A 1" reading theodolite having a multiplying constant of 100 and an additive constant of 0 was centred and levelled a height of 1.48m above a point C of reduced level 46.87 A levelling staff was held vertically at points D and L in turn and the readings shown in the table below were taken Calculate (i)the reduced levels of points D and L (ii) the horizontal length of DL Staff Staff Readings (m) Vertical circle readings Horizontal circle readings 3.240, 3.047, 2.853 87° 38' 53" 56° 49' 31" L 2.458, 2.230, 2.002 92° 21' 36" 98° 07' 18" 32
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Two pegs A and B are driven in the ground at a distance of abour 120 m. A dumpy level is set up at station Q exactly mid-way between pegs A and B. The staff readings on peg A and B were found to be 3.513 m and 3.149 m. The instrument was then moved and set up at a point P beyond peg A, in line BA produced at a distance of 20 m from A. The staff readings on pegs A and B were 1.763 m and 0.847 m respectively. What is the true difference in elevation between the two points? With the level in the same position at P what rod readings on B should the line of sight is adjusted. Check these reading against the true difference in elevation previously SOLVE THE FOLLOWING PROBLEMS: Problem Sketch Solution Answer
Two pegs A and B are driven in the ground at a distance of abour 120 m. A dumpy level is set up at station Q exactly mid-way between pegs A and B. The staff readings on peg A and B were found to be 3.513 m and 3.149 m. The instrument was then moved and set up at a point P beyond peg A, in line BA produced at a distance of 20 m from A. The staff readings on pegs A and B were 1.763 m and 0.847 m respectively. What is the true difference in elevation between the two points? With the level in the same position at P what rod readings on B should the line of sight is adjusted. Check these reading against the true difference in elevation previously determined. a. Sketch b. Solution C. Answer
Example Method of repetition was followed to measure the horizontal angle < ABC by a theodolite, and the field measurements were From То No. of Rep. F.L. F.R. 00° 00' 00" 180° 00' 00" B 18° 33' 10"| 198° 33' 20" 189 33' 15" 198 33' 25" в C 37° 06' 30" 217° 06' 40" A 37° 06' 35" 217° 06'37" B 3 C 55° 39' 52" 235° 39' 56" 55° 39' 56" 235° 39' 54" B 74° 13' 08" 254° 13' 14" Find the precise value for the horizontal angle < ABC
7:43 E Worked examples: Use of stadia Tacheometry Formulae A 1" reading theodolite having a multiplying constant of 100 and an additive constant of 0 was centred and levelled a height of 1.48m above a point C of reduced level 46.87 A levelling staff was held vertically at points D and L in turn and the readings shown in the table below were taken Calculate (i)the reduced levels of points D and L (ii) the horizontat tength of DL Staff Staff Readings (m) Vertical circle readings Horizontal circle readings 3.240, 3.047, 2.853 87° 38' 53" 56" 49 31" 2.458, 2.230, 2.002 92° 21' 36" 98° 07' 18" 32 Dr. Mary Antwi's screen
Please include REMARKS for each sta/points. Also, kindly include a CONCLUSION for the whole surveying/ leveling report. Thank you very much!
a) agr sactar sats its ingusuhents in surveying. b) The readings (2.312, 1.185, -2.365, 0.195, 0.885, 1.345, 0.905) were taken with a level. The instrument was shifted after the 4 reading. The negative reading was taken with the staff inverted from a point below a sunshade. Find the reduced levels of all the points if the first reading was to a BM of assumed RL 100.00.
Levelling question
العنوان не ➤ The following observations were recorded when carrying stadia level between two temporary bench marks. ➤ If the elevation of TBM1 is 750.0 m, compute the elevation of TBM2. Back sight Fore sight Stat. interval Rod read. v.angle interval Rod v.angle read TMB1 3.14 8.6 -0° 25' TP1 5.02 4.5 -3 15 5.02 6.3 +1 52 TP2 4.88 10.0 -1 02 2.74 2.2 +6 20 TP3 6.08 8.0 +0 36 8.06 5.0 +6 13 TP4 1.96 5.5 -5 52 4.81 8.5 -4.00 5.92 12.2 -1 13 TBM2 ۱/۱ S で T =T [く] M
is this correct? interpolate. Specimen No. Time (second) Penetration (mm) 1. 30 40 180 38 800 34 1200 30 2000 22 30000 2 35000 none Initial Set: __________ seconds