Civil Engineering - Estimating and Costing - Discussion
Discussion Forum : Estimating and Costing - Section 2 (Q.No. 8)
8.
A cement concrete road is 1000 m long, 8 m wide and 15 cm thick over the sub-base of 10 cm thick gravel. The box cutting in road crust is
Discussion:
42 comments Page 4 of 5.
Bond said:
7 years ago
Sub base =10 cm.
And we take base = to or less than about sub base = 10 cm. Total depth of cutting = 20 cm. Therefore, V cutting = 1000 x 8 x .2= 1600m3.
We excavate less than 1600 so the nearest option is 1500. So correct answer is 1500 m3.
And we take base = to or less than about sub base = 10 cm. Total depth of cutting = 20 cm. Therefore, V cutting = 1000 x 8 x .2= 1600m3.
We excavate less than 1600 so the nearest option is 1500. So correct answer is 1500 m3.
ANANDA MARNDI said:
6 years ago
How to solve this? Please explain me.
Vivek Arya said:
6 years ago
Orginal volume = 1000m * 8m * (15cm+10cm),
= 1000 * 8 * 0.25cum,
= 2000 cum.
Cutt-off volume = (1/4) * original volume.
= (1/4) * 2000cum,
= 500cum.
So, Box cutting in road curst = (2000-500).
= 1500cum.
= 1000 * 8 * 0.25cum,
= 2000 cum.
Cutt-off volume = (1/4) * original volume.
= (1/4) * 2000cum,
= 500cum.
So, Box cutting in road curst = (2000-500).
= 1500cum.
Swati said:
6 years ago
Box cutting = lbh of concrete + lbh gravel.
=1000 * 8 * 0.15 + 1000 * 8 * 0.10,
= 1200 + 800,
= 2000.
=1000 * 8 * 0.15 + 1000 * 8 * 0.10,
= 1200 + 800,
= 2000.
(3)
Vishal said:
5 years ago
1000*8*0.15 = 1200;m3.
SSC je 2016.
SSC je 2016.
(2)
Dalwinder singh said:
5 years ago
1000 * 8 * 0.15= 1200.
1000 * 8 * 0.10 = 800.
1200 + 800 = 2000m3.
1000 * 8 * 0.10 = 800.
1200 + 800 = 2000m3.
(3)
Akash Singh said:
5 years ago
Original volume= 1000*8*(15+10) = 2000m3.
Cut off volume= 1/4 * 2000 = 500m3.
Box cutting=2000-500= 1500m3.
Cut off volume= 1/4 * 2000 = 500m3.
Box cutting=2000-500= 1500m3.
(1)
Ranjith said:
4 years ago
L = 1000m,
B = 8.00m,
D = (0.15m+0.10m),
Q = LXBXD = 1000m X 8.00mX 0.25m = 2000 cu.m.
B = 8.00m,
D = (0.15m+0.10m),
Q = LXBXD = 1000m X 8.00mX 0.25m = 2000 cu.m.
(4)
Sam said:
4 years ago
Box cutting means the excavation of the road so as to fit the road in the excavated portion this is done to make road level with the surrounding, now you have remembered that there is compaction of 6.25cm in gravel in the subbase so remaining total available ht will be 15+3.75cm, and then as usual l*b*h.
(9)
Sugadev said:
4 years ago
Orginal volume = 1000m * 8m * (15cm+10cm),
= 1000 * 8 * 0.25cum,
= 2000 cum.
Cutt-off volume = (1/4) * original volume.
= (1/4) * 2000cum,
= 500cum.
So, Box cutting in road curst = (2000-500),
= 1500cum.
= 1000 * 8 * 0.25cum,
= 2000 cum.
Cutt-off volume = (1/4) * original volume.
= (1/4) * 2000cum,
= 500cum.
So, Box cutting in road curst = (2000-500),
= 1500cum.
(15)
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