DSR 2023 · SH 19 · DRAINAGE

CPWD DSR item 19.3.4 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 : 250 mm diameter S.W. pipe

Published rate₹1,016.90per 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₹1,016.90per metre

250 mm diameter S.W. pipe

Item code
19.3.4
Sub-head
SH 19 · DRAINAGE
Unit
metre
Source row
236

Cost components

CodeDescriptionUnitQuantityRateAmount
Details of cost for 10 metre length pipe
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 = 250 + 20 + 20 = 290 mm
W = 290 + 300 = 590 mm
D1 = Depth = 150 + (½ x 290) = 295 mm
R = 145 mm
Sin Q = (2x145)/590 = 0.49154
therefor Q = 29°26'
Hence Tan Q = 0.5635
Area = 590 x 295 + (145)² (Cot Q - 3.14 + Q)
= [174050 + 21025 (1/0.5635 - 180°+ 29°26')] sqmm
= [174050 + 21025 (1.77 - 150°34' x 3.14/180)] sqmm
= [174050 + 21025 x (1.77-2.63)] sqmm
= [174050 + 21025 x (-0.86)] sqmm
= (174050 - 18081.5) sqmm
= 155968.5 sqmm
For 10 m length qty. of concrete reqd. = 0.156x10 = 1.56 cum
4.1.10 Rate as per item no 4.1.10 of SH : Concrete Work cum 1.56 ₹6,518.60 ₹10,169.02

Rate build-up

Say 155968 sqmm or 0.156 sqm
Cost of 10 metres ₹10,169.02
Cost per metre ₹1,016.90
Say ₹1,016.90

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