As presented earlier, the short-cut technique for Area
calculation of tunnels cross-section, the calculation for Area of D-Shape
tunnels has been specified this time.
For calculating the cross-sectional area, most of the time
we depend on Auto Cad, as well as various hectic calculations.
From my past experiences and as per knowledge, the short-cut
calculation has been developed, called as AREA CBS FACTOR, the calculation has been shown below……..
C/S AREA OF D-SHAPE TUNNEL = d2 X CBS FACTOR
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Where,
d = Dia. Of D-Shape tunnel
CBS FACTOR = 0.8927
From above formula, we can calculate Area instantly with
simple multiplication.
For example….
For a 6mt. dia tunnel, the Area has been calculated…
Area = d2 X 0.8927
62 x 0.8927 ->
32.13 m2
The above calculation can be verified using Auto-Cad or any
mathematical technique
area
32.1372 m2
perimeter 21.4248 m
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10 comments:
We can also use this formula
Radius X Radius X 3.5708(Factor)
Please check this formula.
Dear Sir,
May I get a factor to clculate a area of D shape which is part of full circle.
Ipso facto defcto,it is the most important spectacular miracle in the domain,sphere.
Many many sincere thanks to omniscient, omnipotent, omniprovided God for your laudable endeavour.
@Nageshwar singh.
What mean by cbs factor
CBS meaning please find sir iam new work on Tunnel excavation and quantity
Dear Mr Ram
CBS is my name like CHANDRA BHUSHAN SINGH
Tunnel area formulla
What will be the CBS factor in case of different bottom width and height of tunnel?
Say the bottom width is 6.5m and the height of tunnel is 7m.
Dear Mr Divyanshu Kaushik
It is already developed and flashed in Google, U may search - "How to calculate the Area of Segment of Tunnel(Circle)"
By this formula you can get area of Segment and for below of SPL, may be applied as "Height X Width".
Finally, by adding both area can be found out the Area of said dimension of Tunnel.
With Regards
Chandra Bhushan Singh
Dear sir,
can you please tell me how to determine the area of modified horse shoe shaped tunnel
Thanks & Regards
shikher Thakur
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