BSV07102 Surveying 1
COURSEWORK 2
WRITE THIS ESSAY FOR ME
Tell us about your assignment and we will find the best writer for your paper.
Get Help Now!Q 1 Two existing manholes, A and B are to be connected by a sewer. The plan length AB is 140.000m
The line of the sewer was established by means of pegs at 20m intervals. The peg tops were levelled by taking a run of levels starting on TBM1 and finishing on TBM2. The results are shown in Table Q.1. The excavation for the sewer is to be monitored using profiles and a 2.5m traveller.
- Draw up a suitable level book page and reduce the levels carrying out relevant arithmetic checks. (10)
- Calculate the gradient of the pipe. (3)
- Calculate the required heights of the profiles above the tops of the pegs. (4)
(Total 17)
| BS | IS | FS | Distance from Manhole A | Remarks |
| 1.926 | TBM1 (RL 95.249 AOD) | |||
| 2.989 | 0 | Invert manhole A | ||
| 1.744 | 20 | Top of Peg 1 | ||
| 1.308 | 1.873 | 40 | Top of Peg 2 | |
| 1.481 | 60 | Top of Peg 3 | ||
| 1.746 | 80 | Top of Peg 4 | ||
| 0.924 | 2.088 | 100 | Top of Peg 5 | |
| 1.062 | 120 | Top of Peg 6 | ||
| 1.598 | 140 | Invert Manhole B | ||
| 2.206 | TBM 2 (RL 93.240m AOD) |
Table Q 1
Q.2
An anti-clockwise closed traverse 9, 10, 11,12,9 was used as the controlling framework for a topographical survey of a small area of ground.
Table Q.2 provides details of the horizontal angle measurements recorded on two faces during the traverse stage, along with the computed horizontal distances.
| Instrument Station | Target Station | Face 1 Hor. Angle | Face 2 Hor. Angle | Line | Mean Distance |
| 9 | 12 10 | 00°00′00″ 100°08′20″ | 179°59′58″ 280°08′14″ | 9-10 | 60.025m |
| 10 | 9 11 | 00°00′00″ 50°56′54″ | 180°00′05″ 230°56′46″ | 10-11 | 21.134m |
| 11 | 10 12 | 00°00′00″ 131°07′41″ | 179°59′56″ 311°07′40″ | 11-12 | 49.995m |
| 12 | 11 9 | 00°00′00″ 77°46′38″ | 180°00′06″ 257°46′45″ | 12-9 | 18.512m |
Table Q.2
The W.C.B. of the line 9-10 was determined accurately as 71°10′34″ with the coordinates of 9 being 1039.712m E, 1022.578m N.
- Determine the mean horizontal angle recorded at each instrument station. (7)
- Using Worksheet Q.2 complete and adjust the traverse. (8)
- Comment on the accuracy of the results. (2)
(Total 17)
Q3
Four corners V,X,Y and Z of a proposed Telephone mast base are to be set out initially from Station “A” by angle and distance and then checked by intersection from station “D”.
The stations and the detail points are all based on the same coordinate system and are given in the table below.
| Station | Easting | Northing |
| A | 1000.000 | 1000.000 |
| D | 984.396 | 994.269 |
| Detail points | ||
| V | 994.478 | 999.223 |
| X | 994.478 | 1000.723 |
| Y | 991.478 | 1000.723 |
| Z | 991.478 | 999.223 |
- Describe with full calculations a method of setting out the 4 points. (9)
- Describe a method of checking the position of the points again showing all working.
(7)
Total (16)
Introducing our Online Essay Writing Services Agency, where you can confidently place orders for a wide range of academic assignments. Our reputable homework writing company specializes in crafting essays, term papers, research papers, capstone projects, movie reviews, presentations, annotated bibliographies, reaction papers, research proposals, discussions, and various other assignments. Rest assured, our content is guaranteed to be 100% original, as every piece is meticulously written from scratch. Say goodbye to concerns about plagiarism and trust us to deliver authentic and high-quality work.
WRITE MY ESSAY NOW
