If the distance from A to H is 220m calculate the mean gradient between the two points. Outline the practical precautions that must be taken for accurate leveling.
|0.599||BM 58.031 m AOD|
Staff reading (m)
1.263 Bench mark, level 26.294 m
3.279, 0.796 CP
0.376 Road level under bridge
1.627, 0.291 CP
-2.162 Soffit under bridge
1.582, 3.526 CP
2.14 BM, level 27.42 m
Could a truck 4.1-m high pass under the bridge?
iii. Calculate the depth of fill or cut at Y when the road has been reconstructed.
|0.738||BM 112.309 above datum|
|1.713||30m from X|
|2.265||60m from X|
|1.100||90m from X|
|1.533||120m from X|
|-3.133||Inverted staff on underside of bridge
126.8 m from X
|1.634||150m from X|
|2.472||Point Y 170m from X|
|2.265||BM 107.895 above datum|
X (260853.2 m E, 376183.7 m N)
Y (260985.6m E, 376.812.3m N)
Z (260955.0m E, 377387.6m N)
X-P-Y = 38°41’
Y-P-Z = 23°16’
|Point||Northing (m)||Easting (m)||RL (m)|
i)The actual length and gradient of the drivage, and
ii)The coordinates of the point at which it meets the lower roadway.
|Station||Clockwise Angle||Length (m)|
|A||260° 31’ 18”||
|B||123° 50’ 42”||
|C||233° 00’ 06”||
|D||158° 22’ 48”||
|E||283° 00’ 18”|
The measured angles are shown as in the figure. Keeping the bearings of XA and EY and also the coordinates of A and E fixed, obtain the adjusted coordinates for B, C and D.
Assuming station F to be at an RL of 24.384m above a datum level, calculate:
a)The horizontal distance from A to B, and
b)The reduced level of station B relative to the datum.
Find by calculation the required information.
iii)On the basis that your assumption is correct, obtain adjusted coordinates for B, C and D on the basis of:
Coordinates of A: 1000.0m E, 2000.0 m N
Bearing of AB = 30°
Why Choose Us
Professional Academic Writers
Customer Support 24/7
Try it now!
How it works?
Follow these simple steps to get your paper done
Place your order
Fill in the order form and provide all details of your assignment.
Proceed with the payment
Choose the payment system that suits you most.
Receive the final file
Once your paper is ready, we will email it to you.
Our Homework Writing Services
Admission and Business Papers
Editing and Proofreading