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₹873.50per metre
200 mm diameter S.W. pipe
- Item code
- 19.3.3
- Sub-head
- SH 19 · DRAINAGE
- Unit
- metre
- Source row
- 236
Cost components
| Code | Description | Unit | Quantity | Rate | Amount |
|---|---|---|---|---|---|
| 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 = 200+ 17 + 17 = 234 mm | |||||
| W = 234 + 300 = 534 mm | |||||
| D1 = Depth = 150 + (½ x 234) = 267 mm | |||||
| R = 117 mm | |||||
| Sin Q = (2x117)/534 = 0.4382 therefor Q= 26°0' | |||||
| Hence Tan Q = 0.4877 | |||||
| Area = 534 x 267 + (117)² (Cot Q - 3.14 + Q) | |||||
| = [142578 + 13689 (1/0.4877 - 180°+ 26°0')] sqmm | |||||
| = [142578 + 13689 (2.05 - 154°0' x 3.14/180)] sqmm | |||||
| = [142578 + 13689 x (2.05-2.69)] sqmm | |||||
| = [142578 + 13689 x (-0.64)] sqmm | |||||
| = (142578 - 8760.96) sqmm | |||||
| = 133817.04 sqmm | |||||
| For 10 m length qty. of concrete reqd. = 0.134x10 = 1.34 cum | |||||
| 4.1.10 | Rate as per item no 4.1.10 of SH : Concrete Work | cum | 1.34 | ₹6,518.60 | ₹8,734.92 |
Rate build-up
| Say 133817 sqmm or 0.134 sqm | — |
| Cost of 10 metres | ₹8,734.92 |
| Cost per metre | ₹873.49 |
| Say | ₹873.50 |