Rate analysis
Extra for depth of manholes dismantled :
DSR rate₹1,975.85as per item analysis
Rectangular arch type manhole 140x90 cm and beyond 2.45 m depth (up to 4.25 m depth)
- Item code
- 19.25.3
- Sub-head
- SH 19 · DRAINAGE
- Unit
- See analysis
- Source row
- 2853
Cost components
| Code | Description | Unit | Quantity | Rate | Amount |
|---|---|---|---|---|---|
| Details of cost for 1.80 metre | |||||
| Dismantling IInd class brick work in cement mortar 1:4 (1 Cement : 4 Coarse sand) for 2.45 depth | |||||
| Qty for 2.45m depth | |||||
| 5.52mx0.23mx1.20m = 1.524 cum | |||||
| 3.92mx0.23mx1.15m = 1.037 cum | |||||
| Total = 2.561 cum | |||||
| Deduct arch ring and portion of pipe | |||||
| 2x½x3.14x0.25mx0.23x0.1m = 0.018 cum | |||||
| 2x3.14/4(0.15)²x0.23m = 0.008 cum | |||||
| Total deduction= = (-) 0.026 cum | |||||
| Net 2.561 - 0.026 = 2.535 cum Say 2.54 cum | |||||
| Qty in arch | |||||
| ½x3.14x1.13x0.80x0.23m = 0.327 cum | |||||
| 2x½x3.14x0.25mx0.23x0.1m = 0.018 cum | |||||
| Total = 0.345 cum Say 0.35 cum | |||||
| Totol for 4.45 m depth 2.54 + 0.35 = 2.89 cum | |||||
| Qty for 4.25m depth | |||||
| 5.52mx0.23mx1.20m = 1.524 cum | |||||
| 3.92mx0.23mx2.95m = 2.660 cum | |||||
| Total = 4.184 cum | |||||
| Deduct arch ring and portion of pipe | |||||
| 2x½x3.14x0.70mx0.23x0.1m = 0.051 cum | |||||
| 2x3.14/4x(0.60)²x0.23 = 0.130 cum | |||||
| Total deduction== (-) 0.181 cum | |||||
| Net 4.184 - 0.181 = 4.003 cum Say 4.00 cum | |||||
| Qty in arch | |||||
| ½x3.14x1.13x0.80x0.23m = 0.327 cum | |||||
| 2x½x3.14x0.70mx0.23x0.1m = 0.051 cum | |||||
| Total = 0.378 cum Say 0.38 cum | |||||
| Total for 2.25 m depth = 4.0+ 0.38 =4.38 cum | |||||
| Net difference = 4.38 - 2.89 = 1.49 cum | |||||
| 15.7.4 | Rate as per item no. 15.7.4 of SH :dismantling and dimolishing | cum | 1.49 | ₹2,060.20 | ₹3,069.70 |
| Dismantling cement concrete 1:2:4 (1 Cement : 2 coarse sand : 4 graded stone aggregate 40mm nominal size) | |||||
| Qty for 4.25m depth | |||||
| 2x1.4x(0.90/2)x(0.65+0.75)/2 = 0.882 cum | |||||
| Less pipe :1.4x3.14/4x(0.60)²(-) = 0.396 cum | |||||
| = 0.486 cum Say 0.49 cum | |||||
| Qty for 2.45m depth | |||||
| 2x1.4x(0.90/2)x(0.20+0.30)/2 = 0.315 cum | |||||
| Less pipe :1.4x3.14/4x(0.15)²(-) = 0.025 cum | |||||
| = 0.290 cum Say 0.29 cum | |||||
| Net difference = 0.49 - 0.29 = 0.20 cum | |||||
| 15.2.1 | Rate as per item no 15.2.1 of SH : Demolishing and dismantling | cum | 0.2 | ₹2,434.25 | ₹486.85 |
Rate build-up
| Cost for 1.8 metre depth | ₹3,556.55 |
| Cost for 1 metre depth | ₹1,975.86 |
| Say | ₹1,975.85 |