DSR 2023 · SH 19 · DRAINAGE

CPWD DSR item 19.3.1 rate analysis

Providing and laying cement concrete 1:5:10 (1 cement : 5 coarse sand : 10 graded stone aggregate 40 mm nominal size) up to haunches of S.W. pipes including bed concrete as per standard design : 100 mm diameter S.W. pipe

Published rate₹458.50per metre
Rate analysis

Providing and laying cement concrete 1:5:10 (1 cement : 5 coarse sand : 10 graded stone aggregate 40 mm nominal size) up to haunches of S.W. pipes including bed concrete as per standard design :

DSR rate₹458.50per metre

100 mm diameter S.W. pipe

Item code
19.3.1
Sub-head
SH 19 · DRAINAGE
Unit
metre
Source row
236

Cost components

CodeDescriptionUnitQuantityRateAmount
Detail of cost for 100 metre
Area = WxD1 + 2x½xR Cot QxR - [R²/2(3.14/2-Q)] - (3.14/2)R²
= WD1 + R²(Cot Q) - R²(3.14/2 - Q) -(3.14/2)R²
= WD1+R²(cot Q-3.14 + Q)
Where Sin Q = [R/(W/2)] = 2R/W
W = D + X ; X = 300 mm, D = 100 + 12 +12 = 124 mm
W = 124 + 300 = 424 mm
D1 = Depth = 100 + (½ x 124) = 162 mm
R = 62 mm
Sin Q = (2x62)/424 = 0.292 therefor Q = 17°0'
Hence Tan Q = 0.3057
Area = 424 x 162 + (62)² (Cot Q - 3.14 + Q)
= [68688 + 3844 (1/0.3057 - 180° + 17°0')] sqmm
= [68688 + 3844 (3.27 - 163°0' x 3.14/180)] sqmm
= (68688 + 3844 x 0.43) sqmm
= (68688 + 1652.92) sqmm
= 70340.92 sqmm
For 100 m length qty. of concrete reqd. = 0.07034x100 = 7.034 cum
4.1.10 Rate as per item no 4.1.10 of SH : Concrete Work cum 7.034 ₹6,518.60 ₹45,851.83

Rate build-up

Say 70341 sqmm or 0.07034 sqm
Cost of 100 metre ₹45,851.83
Cost per metre ₹458.52
Say ₹458.50

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