| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 09-Dec-202 | Corregendum | Date | 14-12-2020 |
| Name of Work: Construction of R.C.C. foundation for 40-meter High Ground Based Tower (NBLW) at Verna & Suravali along Konkan Railway track ,GOA. (For Two Nos of Tower Sites) (Recall) | |||||
|---|---|---|---|---|---|
| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
| 1 | 1 | Earth work in excavation by mechanical means (Hydraulic excavator) / manual means over areas (exceeding 30cm in depth, 1.5m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth, lead up to 50m and lift up to 1.5m,as directed by Engineer-in-Charge. | BI01010001010000000000000515BI0100001113 | ||
| 2 | 1.1 | a) All kinds of soil | 46 | Cum. | |
| 3 | 2 | Earth work in excavation by mechanical means (Hydraulic excavator) / manual means over areas (exceeding 30 cm in depth, 1.5m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth, lead up to 50 m and lift up to 1.5m, as directed by Engineer-in-Charge. a) Ordinary rock | BI01010001010000000000000515BI0100001115 | ||
| 4 | 2.1 | a) Ordinary rock | 184 | Cum. | |
| 5 | 2.2 | b) Hard rock (blasting prohibited) | 46 | Cum. | |
| 6 | 3 | Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift up to 1.5 m. | 198 | Cum. | |
| 7 | 4 | Extra for every additional lift of 1.5 m or part thereof in excavation /banking excavated or stacked materials. | |||
| 8 | 4.1 | Ordinary or hard rock. | 208 | Cum. | |
| 9 | 5 | Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : | |||
| 10 | 5.1 | 1:5:10 (1 cement : 5 coarse sand (zone-III): 10 graded stone aggregate 40 mm nominal size | 6 | Cum. | |
| 11 | 6 | Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level : a) 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) : 3 graded stone aggregate 20 mm nominal size). | 74 | Cum. | |
| 12 | 7 | Centering and shuttering including strutting, propping etc. and removal of form for : | |||
| 13 | 7.1 | Foundations, footings, bases of columns, etc. for mass concrete. | 126 | Sqm | |
| 14 | 8 | Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete up to plinth level. A) Thermo-Mechanically Treated bars of grade Fe-500 D or more. | 6400 | Kg | |
| 15 | 9 | Smooth finishing of the exposed surface of R.C.C. work with 6 mm thick cement mortar 1:3 (1 Cement : 3 fine sand) | 12 | Sqm | |
| 16 | 10 | Supplying at site anchor bolts ( for fixing base of tower)made from Mild steel rods (as per IS 2062) of approved make (TATA,JINDAL or equivalant) of dia 32mm dia of requried length(shown as per drawing ),threaded up to 200mm from top and welded with 8 mm MS Plate of size 100X100 mm at bottom including suitable nuts & check nuts and M.S. spring washers with primer etc all complete as per direction of engineer in charge. | 36 | Each | |
| 17 | 11 | Transportation and carriage of template assembly for 40m steel tower from nearest Telecom Store to work including loading, unloading, stacking and keeping in safe custody complete as per direction of the Engineer - in - Charge. | 2 | Job | |
| 18 | 12 | Fixing bed plates, templates and anchor bolts etc. for stem of tower foundation including scaffolding, working platform alround the perphery of the columns for checking of bolts,templates upto height of 2.3 M,accurate positioning, levelling etc. and maintaining the position and level till casting of RCC work of columns is over and applying grease to the exposed portion as protection from rusting, complete as per the directions of the Engineer-in-charge. (Bed plates, templates and anchor bolts etc. to be supplied by the department free of cost and Each anchor bolt, fixed in position shall be measured seperately for payment.) (Note:- Any variation in centre to centre distance of anchor bolt from drawings after casting of concrete,may require dismantling and recasting of columns for accurate positioning of anchor bolts at the cost of agency). | 72 | Each |
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