Higher Technological Institute Civil Engineering Department 6th of October Course Title: Surveying (ii) Topic: Vertical section Sheet No: 1 (1) The following leveling observations were obtained along the center line of a proposed line route:Staff distance R.L. Remarks 0 178.69 Point A 20 178.35 40 177.89 60 178.29 80 178.52 100 178.79 120 178.59 140 179.80 160 180.16 Point B If the pipe line is to start at a reduced level 177.00 m at A and rise at a gradient of 1: 100 towards B. (a) Draw a vertical section along the proposed route with suitable horizontal and vertical scale, taking 173.00 at the datum of heights. (b) From the graph or by calculation determine the cut and fill at each point (2) The under noted staff readings were taken successively with a level along an underground roadway. Distance from A St. reading Remarks L C R 1.759 0 BS to A 0.652 20 IS 1.541 40 5 IS 1.666 40 10 IS 0.985 3 40 IS 1.245 15 40 IS 0.091 40 FS 1.689 BS 0.910 80 FS 0.680 BS 0.917 120 IS 0.650 160 FS 0.671 BS 1.540 200 IS 1.955 240 FS Using the H.I method, Calculate: (a) The reduced level of each staff station relative to the level of A, which is 120 m,, and check the results. (b) Draw a profile section between points A and B with horizontal scale 1:1000 and a vertical scale of 1:10. (c) Compute the cut and fill if the constructed roadway is to have a constant elevation between A and B of 122 m. (d) Draw a cross-section at interval 40 m. 1 / 11 Higher Technological Institute Civil Engineering Department 6th of October Course Title: Surveying (ii) Topic: Cross-section Sheet No: 2 (1) An embankment of width 10 m and side slopes 1.5: 1 is required to be made on a ground which is level in a direction transverse to the centre line. The central heights at 40m intervals are as follows: 0.90 - 1.25 - 2.15 - 2.5 - 1.85 - 1.35 and 0.85 Calculate the volume of earth work according to (a) The trapezoidal formula (b) The primordial formula. (2) Railway embankment of formation with of 8m and side slop 2:1 is to be constructed .the ground level along the centre line is as follows: Chainage- 0 50 100 150 200 250 GL (m) - 115.75 116.35 116.80 116.50 115.50 115.25 The embankment has a rising gradient of 1 in 100 and the formation level at zero chainage is 115.00 Assuming the ground is level across the centre line compute the volume of earth work. (3) The ground level along the centre line of a road is given below: Chainage- 0 50 100 150 200 250 300 GL (m) - 117.50 116.25 115.95 116.65 117.20 117.85 115.75 It is proposed that the formation level of RL 115.00 should be kept constant of starting from the chainage zero the formation width of the road is 8 m and the side slope 1:1 the ground is level transverse to the centre line. (4) The formation width of a certain cutting is 8m and the side slope is 1:1 the surface of the ground has a uniform slope 1 in 10 if the depths of the cutting at centers of three sections 40m apart are 2, 3 and 4m respectively find the volume of earth work . 2 / 11 Higher Technological Institute Civil Engineering Department 6th of October Course Title: Surveying (ii) Topic: Theodolite Sheet No: 3 1- Discuss the various parts of theodolite and illustrate your answer with sketch. 2- Define the following terms:a- Centering b- Face left c- Face right d- Line of collimation e- Geometrical axis f- Optical axis g- Line of sight 3- Explain briefly the temporary adjustment of a theodolite. 4- Name the fundamental axes of a theodolite. State the relationship that should exist between them when the instrument is in adjustment. 5- Describe the following:a- Plate bubble adjustment. b- Collimation adjustment. c- Trunnion axis adjustment. d- Diaphragm adjustment. e- Index error 6- In the horizontal angle ABC = 115°20` 15``, AB is 700 m and BC is 1000 m. IF the error in centering the target at B is 5mm, what will be the resultant error in the measured angle ? 3 / 11 Higher Technological Institute Civil Engineering Department 6th of October Course Title: Surveying (ii) Topic: Horizontal and vertical angles Sheet No: 4 Several angles have been measured at survey station A. The following data refer to the angles: Instrument Target St. Horizontal Circle Reading station FL FR A B 00° 24`40`` 180°24`40`` C 65 36 00 245 36 20 D 132 10 20 312 10 40 E 247 08 00 67 08 20 Calculate: a- The mean observed angles BAC, CAD, and DAE. b- The bearing of AB, AC and AD if the bearing of AE = 2400 00\ 00\\ 2- A theodolite was used to observe the top of a spire (S) from two stations(A) and (B) whose distance was 101.8 m , and the observations at the stations were as follows :Station To Face H.C.R. V.C.R. S L 000° 00` 40`` 068° 36` 34`` R 180° 00` 36`` 291° 23` 22`` B L 058° 12` 58`` 089° 13` 25`` A R 238° 12` 54`` 270° 46` 23`` S L 000° 00` 42`` 068° 38` 38`` R 180° 00` 38`` 291° 21` 20`` S L 000° 00` 40`` 068° 49` 17`` R 180° 00` 34`` 291° 10` 35`` B A L 064° 17` 24`` 092° 24` 11`` R 244° 17` 20`` 267° 35` 55`` S L 000° 00` 43`` 068° 50` 16`` R 180° 00` 39`` 291° 09` 38`` Compute the mean height of the spire above the ground if the height of the instrument was 1.46 m above each of the two stations. The two stations have the same elevations, and find the index error. 3- The angle is measured by repetition transit. The mean back sight reading is 359° 59`45``.After the first repetition the reading is72°29`05``. After the twelfth repetition, the reading is 149° 47` 12``. Compute the value of the angle. 4- A theodolite was set over station (X) to measure directions to A, B, and C. The following observations were determined: Station To Face V.C.R occupied A L 85O 30' 10'' R 274 29 40 B L 95 30 10 R 264 29 44 C L 85 30 15 R 274 29 35 Compute: a- The corrected vertical angle. b- The Index error. 4 / 11 Higher Technological Institute Civil Engineering Department 6th of October Course Title: Surveying (ii) Topic: Omitted observation Sheet No: 5 1- The following table refers to a closed traverse ABCDEA .The bearing of the line DE and length of line CD could not be observed. Calculate the omitted measurements. Line AB BC CD DE EA Length 800 700 ??? 790 500 Bearing N 35 ° 00` E S 85 00 E S 03 00 E ?? ?? ?? N 60 00 W 2- Lengths of all the lines, reduced bearings, eastings and northings of AB, DE and EA lines of a closed traverse ABCDEA are given as follows. Determine the bearings of BC and CD. Line AB BC CD DE EA Length 365.0 525.5 622.5 470.0 287.5 R.B. S 60° 00` E ---S 49 22 E ----S 02 24 W 3- Using the data of a closed traverse given below, calculate the lengths of the lines BC and CD. Line Length W.C.B. AB 344 014° 31` BC L1 319 42 CD L2 347 15 DE 300 05 16 EA 1958 168 12 5 / 11 Higher Technological Institute Civil Engineering Department 6th of October Course Title: Surveying (ii) Topic: Link Traverse Sheet No: 6 1- Give the measurements of the traverse 1234, as shown in the Fig. (1), and the data, is given in the following table: North East Station 9491.70 4206.42 A 9342.21 4284.18 B 8477.12 5606.21 C 8185.03 5577.30 D Compute the balanced co-ordinates for the traverse stations (1-2-3-4). 2- The following is an extract form the traverse calculations between two fixed points P and Q. Line Length ∆E ∆N PA 86.19 -1.84 +86.17 AB 69.08 -61.52 -31.41 BC 145.4 -21.50 +151.42 CQ 82.24 -79.85 -19.68 The known correct differences in easting and northings between stations P and Q are respectively –164.02 and 186.15. Calculate the correct differences of coordinates of the traverse using Transit rule. 3- The following data were obtained in a link traverse. Calculate the final adjusted partial co-ordinate using transit method. Side Station Observed angles Length T2 131° 25` 20`` T2A 147.65 A 138 37 00 AB 139.10 B 147 43 20 BC 111.57 C 261 21 40 CT3 121.33 T3 259 33 00 The co-ordinates of T2 and T3 in meters are T2 = 403.00 E; 351 N T3 = 847.86 E; 335N The known bearings are T2T1 = 345° 00` 00`` T3T4 = 203° 42` 00`` Fig. (1) 6 / 11 Higher Technological Institute Civil Engineering Department 6th of October Course Title: Surveying (ii) Topic: Tacheometry (1) Sheet No: 7 1- A line was leveled tacheometrically with a tacheometer fitted with an analectic lens, the value of the constant being 100. The following observations were made, the staff having been held normal to the line of sight. Instrument V.A. H.I Staff at Staff reading Remarks Station 1.50 - 2° 54` 1.02 , 1.720 , 2.42 A B.M R.L. = 180 1.50 + 3 36 1.22 , 1.825 , 2.43 A B 1.42 + 4 06 0.78 , 1.610 , 2.44 B C Compute the distances AB, BC, and A to the B.M. Also find the elevations of A, B, and C. 2- Two sets of tacheometric reading were taken from an instrument station A, the reduced level of which was 100.06 m, to a staff station B. a- Instrument P- multiplying constant 100, additive constant 0.25 m. b- Instrument Q- multiplying constant 90, additive constant 0.25 m. Instrument At To H.I. VI.A. Stadia readings 1.50 26° 14` 22`` 0.755 ,1.005 ,1.255 P A B 1.45 25 17 32 ??? ??? ??? Q A B What should be the stadia readings with instrument Q? 3- Two sets of tachometric readings were taken from an instrument station A (R.L. 100.00), to a staff station B: Instrument P Q Multiplying Constant 100 95 Additive constant 30 cm 45 cm Height of instrument 1.40 m 1.45 m Staff held vertical normal to line of sight Instrument At To Vertical angle Stadia readings P A B 5° 44` 1.090/1.440/1.795 Q A B 5° 44` ??? Determine:a- The distance between instrument station and staff station. b- The R.L. of staff station B. c- The stadia readings with instrument Q. 4- A tacheometer with a multiplying constant of 100 and no additive constant is set up over station X and sighted on a level staff held vertically on a bench mark B , and then on two points Y and Z . The height of B above datum is 278.36 m. The results are in the following table: Instrument Station Vertical Horizontal Stadia hair readings station sighted Upper Center Lower angle circle reading 2.310 1.887 1.464 + 2° 15` 10`` ------X B 2.466 1.600 0.732 + 3 36 00 28° 12` 15`` X Y 2.522 1.455 0.388 2 42 30 93 51 55 X Z Calculate: (a) The horizontal distance YZ. (b) The height of points Y and Z. 7 / 11 Higher Technological Institute Civil Engineering Department 6th of October Course Title: Surveying (ii) Topic: Tacheometry (2) Sheet No: 8 1- In order to determine the constants of a tacheometer, distances 200 and 400 m were accurately measured and readings on a stadia rod on the upper and lower wire were taken as follows: At 200 m 2.00 4.00 At 400 m 0.50 4.50 Determine the values of the constants and find the distance when the readings of the other stadia wires were 1.5 and 4.5 m. The line of sight being horizontal in all cases. 2- A vertical staff is observed with a horizontal external focusing telescope at a distance of 112.489 m, measurements of the telescope are recorded as: Objective to diaphragm 230 mm Objective to vertical axis 150 mm If the readings taken to the staff were 1.073, 1.626 and 2.185, Calculate: a- The distance apart of the stadia lines. b- The multiplying constant. c- The additive constant. 3- A tacheometer was set up at a station A and the following readings were obtained on a vertically held staff . Station Staff station V. angle Stadia readings Remarks A -2 ° 18`` 3.225, 3.550, 3.875 R.L. of B.M. is B.M 8° 36`` 1.650, 2.515, 3.380 200 m B Calculate the horizontal distance from A and B and the R.L. of B, if the constants of the instrument were 100 and 0.425 m. 4- The following observations were taken from two traverse stations by means of a tacheometer fitted with an analectic lens. The constant of the instrument is 100. Instrument Staff H.I Vertical Bearing Staff readings station station angle A C 1.38 +10° 12` 226°30 0.765 /1.595 /2.425 B D 1.42 - 12 30 84 45 0.820 /1.840 /2.860 Co-ordinates of station A = 12.30 N, 186.8W Co-ordinates of station B = 102.8 N, 96.4W Compute the length and gradient of the line CD, if B is 6.50m higher than A. 5- Two observations are taken upon a vertical staff by means of theodolite, of which the R.L. of the horizontal axis is 250.0 m. In the first observation , the line of sight is direct to give a staff reading of 1.00 m and an angle of elevation is 4° 58` . In the second observation, the staff reading is 3.50 m and the angle of elevation is 5° 44`. Compute the R.L., of staff station and its horizontal distance from the instrument. 8 / 11 Higher Technological Institute Civil Engineering Department 6th of October Course Title: Surveying (ii) Topic: Rankin's method Sheet No: 9 1- Draw a neat sketch of a simple circular curve and show the following elements there on. Give their relationships. a- back tangent b- forward tangent c- Point of intersection d- point of tangent e- Angle of intersection f- angle of deflection g- Long chord h- central angle i- Point of curvature j- radius of curve 2- If the radius of a circular curve is 400 m and angle of intersection is 120°. Find the various elements of a simple circular curve, taking the chainage of the point of intersection as 1220.5 m. 3- Two straight lines AB and BC intersect at chainage 2067 m, the intersection angle being 140°. It is desired to connect these two straight lines by a simple circular curve of 5°. Calculate the radius of the curve and tabulate the necessary data to set out the curve with a peg interval of 30 m. 4- Tabulate the necessary data to set out a right – handed simple circular curve of 250 m radius connecting two straight lines having a point of intersection at a chainage of 3450 m using Rankin’s method. The intersection angle between the two straight lines is 50° .Take the chord interval as 20 m. 5- In setting out a circular road curve it was found necessary that the curve should pass through a point at a distance of 30 m from the intersection point and equidistant from the tangents . The chainage of intersection point was 1728 m and the intersection angle 15°. Find out the necessary data to set out the curve with a peg interval of 30 m. 6- 6- Two straights intersecting at a point B have the following bearings, BA 270°, BC 110°. They are to be joined by a circular curve which passes through a point D which is 150 m from B and the bearing of BD is 260°. Find the required radius, tangent lengths, length of curve and setting out the first four points using 30 m standard chord. 9 / 11 Higher Technological Institute Civil Engineering Department 6th of October Course Title: Surveying (ii) Topic: deflection distance method Sheet No: 10 1- Describe briefly the method of setting out a simple circular curve with help of two tapes. 2- Tabulate the necessary data to set out a right – handed simple curve of 250 m radius connecting two straights having a point of intersection at a chainage of 3450 m by the method of offset from the chords produced. Take the chord interval as 20 m. The deflection angle between the two straights is 50°. 3- Two straights AB and BC intersect at a chainage 3813.6 m. The angle of intersection is 140°. It's required to set out a 5° simple curve to connect the two straights. Calculate all the data necessary to set out the curve by the method of offsets from the chords produced with a peg interval of 30 m. 4- A curve of radius 500 m is to be set out to join two straights BI and IC which deflect through 120°. Point I is inaccessible and the following data was measured: BC = 525.2 m, angle IBC = 65° 30` 00``. Assuming the chainage of B is 483.65 m, calculate sufficient data to set out the curve by deflection angles from the tangent point T1 by standard chords of 40 m. 10 / 11 Higher Technological Institute Civil Engineering Department 6th of October Course Title: Surveying (ii) Topic: Vertical curve Sheet No: 11 1- What are the properties of the parabolic vertical curve? 2- What is the difference between summit and valley carves and why are they needed? 3-What information and formulae are necessary in order to calculate the setting out data of a vertical curve? 4- An existing road of rising gradient 2.5% meets a falling gradient 2%, at chainage 364.370 m and level 50.36 m. The gradient is to be connected by a simple parabolic curve 100 m long. Calculate:(a) The rate of change of gradient. (b) The chainage and levels of the tangent points. (b) The levels of the points on the curve using the standard chord of 20 m. 5- As part of dual highway reconstruction scheme, the following line of levels was taken at given points on the existing surface. Point Reduced level Chainage (m) 31.891 632.46 A 33.263 678.18 B 32.702 777.24 C 31.635 830.58 D If the curve is designed to give a rate of change of gradient of -2.5 x 10-4, Calculate:(a) The length of the curve L. (b) The chainage and level of intersection point (I). (c) The chainage and levels of the tangent points T1 and T2. (d) The level of the points on the curve (based on standard chords of 20 m). 6- Two straights T1I and IT2 falling to the right at 1% and 5% , respectively are to be connected by a parabolic vertical curve 200 m long . Given that the chainage and reduced level of I are 3627.00 m and 84.64 m, respectively. Design the vertical curve using the standard chord of 20 m. 7- A down grade of 1.5 % is followed by an upgrade of 1:40. Take RL. Of the point of intersection is 60.00 and its chainage is 360 m. A vertical curve 120 m long is to be introduced to connect the two grades. The pegs are to be fixed at 15 m intervals. Calculate the elevation of the points on the curve and work out the staff readings required if the pegs are to be driven with their tops at the formation of curve. It is given that the height of collimation is 62.180 m. 11 / 11