survey-camp-presentation (1)pashchimanchal.pptx

Presentation of surgery camp

1. TRIBHUWAN UNIVERSITY INSTITUTE OF ENGINEERING PASHCHIMANCHAL CAMPUS, POKHARA PRESENTATION ON SURVEY CAMP:2080 Presented by: Group 6 AADARSH THAKUR (PAS077BCE007) ANISH SAH (PAS077BCE019) BHUMIRAJ SHAHI (PAS077BCE037) DEEPAK PANTHI (PAS077BCE048) PRAKASH CHAPAGAIN (PAS077BCE084) SHOVANA ACHARYA (PAS077BCE076) Presented To: Department of Civil Engineering , Pashchimanchal Campus Date:2080-09-25

2. Surveying Process of finding unknown coordinates using known coordinates by suitable methods. Principle of surveying Working from whole to part Locating points by measurement from two control points Independent check Consistency Safeguarding Honesty

3. Topographic Survey Objectives: To prepare the topographic map of given area. To transfer the RL from given benchmark to the control stations. To draw the contours .

4. Survey done for showing all the natural and artificial features of given topography to prepare topographic map of the region Methodology R e co n na i ss a nce Traversing Levelling Det a il i ng Topographic surveying

5. M in i m um Stations R e fe r encing Intervisibility R e co n naissance And Pegging Suitable T raverse Dist a nce Source: http s://w ww. maps.google.com/

6. Error=(2N-4)*90 – Observed sum Correction= -e/N Dist a nce: Forward and B a ck w ard Prec i sion 1:2000 Horizontal Angle: 2 Set of HCR reading

7. To check the collimation error of levelling machine this test was conducted. Two Peg Test Table:Two Peg Test First set (Instrument at the midway) Second set(Instrument near at A) Re a ding at A Reading at B Re a ding at A Reading at B T=1.477 T= 1.469 T= 1.392 T= 1.530 M= 1.403 M= 1.392 M= 1.371 M= 1.361 B= 1.329 B= 1.310 B= 1.350 B= 1.193 Height d i f fer e nce between A & B (H)=MA-MB= 0.011 m Height d i f fer e nce between A & B (H')=MA-MB= 0.01 m Distance between two peg(D)= 30 m. Since, HǂH' collimation error(e) exists=0.0 11 -0.0 01 =0.00 1 Permissible range(e/D)=0.00 1 /30=1 in 3 0000. So, permanent adjustment is not required.

8. RL T ransfer Firstly, Differential Leveling was done from T BM 1 to TBM 2 and fly leveling was done from TBM 2 to T BM 1 Differential Leveling was done from TBM 2 to FM2 and fly leveling was done from FM2 to T BM 2 The obtained RL of FM 2 was transferred to the major station and finally to minor station The obtained error was adjusted among them using Bowditch Rule

9. Determination of coordinates of details or points by total stations PROCEDURE TS was set on the known station, coordinates of various details were recorded R oug h t o pog r aph i c al s k e t ch i n d i ca ting s ta tions and typ e s of d et a i ls was made at each station Th e r e c o r d e d d a t a w as e x t r ac t ed f r o m T S and with its h e lp topographical map was drawn Detailing

10. Major Traverse S c ale=1 : 10

11. Topographical Map Scale=1:500

12. Objectives: To set out curve with appropriate radius and deflection angle Profile and cross sectional leveling of road alignment To prepare plan of road alignment T o f i n d ou t the v olum e o f cut and fill Road Alignment Survey The position or the layout of the centre line of the road on the ground Horizontal alignment includes straight and curved paths Vertical alignment includes reduced level and gradients

13. Reconnaissance Selection and Marking I.P. Measuring Deflection Angles Measuring distance between I.P. Suitable selection of Radius for the horizontal curve Marking BC, EC and MC Measuring Apex Distance Profile and Cross-section levelling Fly Levelling Filling up the Field Book & Plotting Outline of Road Alignment Survey

14. Determining Alignment Of Road PROCEDURE 1 2 IP were selected for the road alignment. Deflection angle at each IP was determined Radius , tangent length, apex distance and length of the curve were determined. Finally, chainage of BC,MC,EC were determined at each IP Profile leveling was done at each BC, MC,EC and at each 20 m intervals. Fly leveling

15. Filling volume= cu.m Cutting volume= cu.m Cutting slope=1:0.2 (Hard rock) Filling slope=1:0.9 (soft soil) Minimum gradient=0% Maximum gradient= 10.92 % Minimum radius=15m Maximum radius=200m No. of culverts=1 Result Source: http s://w ww.g oogle.com/

16. Scale=1: 10 00 Plan of Road

17. Longitudinal Section of Road Scale: 1:100 Vertical 1:1000 Horizontal

18. Cross Section of Road Sourc e:h t tp://roadxse c tions.blogspot.com/ Scale=1:100

19. Bridge Site Survey Source: http s://w ww.g oogle.com/

20. Reconnaissance Determining the bridge axis using triangulation Cross section levelling Drawing longitudinal section map Data Collection Drawing Cross Section Map Drawing Contour Map of the bridge site Out l ine of Bridge Site Survey

21. Selection of Bridge axis Calculation of Bridge Length Reciprocal levelling R L tra n sfer t o all the stations

22. Result AB is the Bridge axis Bridge Length m Err o r= ( Di f ference between AB ) /(average val u e o f AB) Hence, the error is in precision of 1 in Mean difference between two points A and B= m RL of TBM= 800m Upstream=100m Downstream= 50 m

23. Longitudinal Section of Kalikhola Scale: 1:50 Vertical 1:500 Horizontal

24. Cross Section of Kalikhola Scale: 1:100 Vertical 1:300 Horizontal

25. Contour interval=1m Scale=1: 250 Contour of Kalikhola

26. . 1. Prepare top o grap h ic map of a area . 2. Bridge site selection and planning. 3.Fix central road alignment . 4. Calculate the volume of earthwork (cutting and filling) At the End of Survey Camp we are able to:

27. Thank You ! To Our Respected Teachers