Rate analysis
Dismantling of manhole including R.C.C. top slab, C.I. cover with frame, including stacking of useful materials near the site and disposal of unserviceable materials within 50 m lead as per direction of Engineer-in-charge:
DSR rate₹6,472.40as per item analysis
Circular manhole 122 cm diameter and 1.68 m deep
- Item code
- 19.24.4
- Sub-head
- SH 19 · DRAINAGE
- Unit
- See analysis
- Source row
- 2696
Cost components
| Code | Description | Unit | Quantity | Rate | Amount |
|---|---|---|---|---|---|
| Details of cost of a manhole 1.22 m internal diameter 1.68 m deep | |||||
| Dismantling of cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 aggregate stone 40 mm nominal size) | |||||
| 1.98x1.98x0.30 m = 1.178 cum Say 1.18 cum | |||||
| 15.2.1 | Rate as per item no 15.2.1 of SH : Dismantling | cum | 1.18 | ₹2,434.25 | ₹2,872.42 |
| Dismantling of second class brick work in cement mortar 1:4 (1 cement : 4 coarse sand) | |||||
| Curved on plan | |||||
| 3.14x1.45x0.24x0.23 = 0.251 | |||||
| 3.14x(1.45+0.79)/2x1.32x0.23 = 1.069 | |||||
| = 1.320 | |||||
| Duduct arch ring and portion of pipe | |||||
| 2x½x3.14x0.25mx0.23x0.10 m = 0.018 cum | |||||
| 2x3.14/4x(0.15)²x0.23 = 0.008 cum | |||||
| = 0.026 cum | |||||
| Net quantity 1.320-0.026 = 1.294 Say 1.29 cum | |||||
| Brick work in arches | |||||
| 2x1/2x3.14x0.25 m x0.230x0.10 m | |||||
| = 0.018 cum Say 0.02 cum | |||||
| Total = 1.294+0.02 = 1.1.314 cum. Say 1.131 cum | |||||
| 15.7.4 | Rate as per item no. 15.7.4 of SH :dismantling and dimolishing | cum | 1.31 | ₹2,060.20 | ₹2,698.86 |
| Dismantaling cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 gradeed stone aggregate 20 mm nominal size) | |||||
| For benching : | |||||
| 3.14/4x(1.22)²x0.20 = 0.234 cum | |||||
| [(2x8.133)/360]x(4/3)x3.14x(0.61)³ | |||||
| Total =0.043 cum | |||||
| 0.024 + 0.043 = 0.277 cum | |||||
| Less pipe :1.22x3.14/4x(0.15)² = (-) 0.0216 cum | |||||
| Net Qty. = 0.277 - 0.0216 = 0.26 cum | |||||
| In cover fixing 0.7854x1.020x1.020x0.15 m =0.123 cum | |||||
| Less cover 3.14/4x(0.28)² x 0.15 m : = (-) 0.037 cum | |||||
| = 0.086 cum Say 0.09 cum | |||||
| Total = 0.26 + 0.09 = 0.35 cum | |||||
| 15.2.1 | Rate as per item no 15.2.1 of SH : Demolishing and dismantling | cum | 0.35 | ₹2,434.25 | ₹851.99 |
| 9999 | Removal of S.F.R.C cover with frame size 560 mm diameter (medium duty) | L.S. | 7.15 | ₹2.27 | ₹16.23 |
| 9999 | Removal of M.S. foot rests | L.S. | 8.06 | ₹2.27 | ₹18.30 |
Rate build-up
| TOTAL | ₹6,457.80 |
| Add 1 % Water charges on "W-A" | ₹0.35 |
| TOTAL | ₹6,458.15 |
| Add GST on "X-A" (multiplying factor 0.2127) | ₹7.42 |
| TOTAL | ₹6,465.57 |
| Add 15% CPOH on "Y-A" | ₹6.35 |
| TOTAL | ₹6,471.92 |
| Add Cess @ 1% on "Z-A" | ₹0.49 |
| Cost of one no | ₹6,472.41 |
| Say | ₹6,472.40 |