Rail Infrastructure Development Company (Karnataka) Limited (K-RIDE) has invited Bids from eligible Bids, for the Execution of works detailed in the below under Single stage: Two Tender document system (Technical Bid and Financial Bid).
- Tender No.: K-RIDE/DL/18/2021
- Name of Work: Yesvantpur-Channasandra and Baiyyappanahalli-Hosur Doubling Projects-Welding of 52kg/60 kg(UIC)/260R Rails by Alumino Thermit SKV process including Supply of Welding Portions as approved by RDSO.
- Approx. Value of Work: INR 1.68Cr
- Period of Completion: 18 Months
- Tender Document Downloaded From: 26.10.2021
- Date of Pre-Bid Meeting: 09.11.202
- Date of Opening of Cover One of tender (Technical Bid): 29.11.2021
Scope of Work:
The Additional Special Conditions and Specifications are supplementary to the General Condition of Contract, Special Conditions of Contract and Standard Specifications for works. The matters wherein the provisions of these Additional Special conditions and specifications are at variance with those of the general conditions of contract and standard specification for works, the former shall prevail.
- The scope of the work shall include but not limited to the following. For complete detail of the code of practice for welding the rail joints by Alumino Thermic process, the contractor shall refer to the specification no. IRST-19-2020 with corrections up to date(hereinafter called as IRS Specification) and as amended from time to time and Manual for Fusion Welding of Rails by the Alumino thermic Process-19-2020 issued by RDSO/Lucknow with corrections up to date (hereinafter called as Manual for Fusion Welding of Rails).
- It shall be deemed that the Contractor has fully examined the provisions of I.R.S. Specification and Manual for Fusion Welding of Rails as attached in IREPS (Works Module) website.
- This specification is for A.T. Welding of rails to IRS Specification T-12 and UIC Specification 860-0, Alloy Steel Rails, viz., Chrome Manganese and Chrome-Vanadium and Head Hardened rails.
- The work provides for Alumino Thermit welding of 60kg(UIC)/60E1,R-260, Grade Rails/52kg, 90 UTS rail joints of 13/130/260m /any length of Class-I / II Rails laid on PSC sleepers track/Cess by Short Pre-Heat (SKV) welding technique with 25mm gap and Combination Joints for 52 Kg 90 UTS Vs 72UTS/ 60Kg 90 UTS Vs 52 (90UTS), 60 Kg 90UTS Vs 260R with 50 mm gap using advanced /improved welding techniques as indicated in clause 3 of this specification by such contractor/firm as mentioned in clause 4 of this Specification with all labour, materials, consumables, tools and plants, including supply and using of portions procured from RDSO approved vendors with RDSO’s inspection certificate for welding, placing & fixing of mould, preheating, welding, mechanised trimming of the extra metal by double weld trimmer, grinding with profile grinder (including riser) to the prescribed tolerances, testing, marking, painting etc. complete for new track/existing running track of 52Kg/60Kg 90UTS, 260R (New / SH rail) for three rail panel/ LWR including transportation of welding portions, moulds and other accessories and equipment required for welding from firm’s depot to K-RIDEdepot and further to site of execution.
- The work involves welding of rail joints on bank/cutting/bridges/level crossings in mid-section/yards in straight/curved alignment; in situ/oncess for new track/existing running track-main line, loop line and in points and crossing including for glued joints, SEJ etc., under traffic/non-traffic conditions-traffic block/ cautious drive for welding on existing main line and without block for loop lines track.
- The work includes crossing of railway tracks, in all kinds of climatic conditions/site conditions; carrying out ancillary works such as removal of fish plates, cleaning of rail ends with wire brush and kerosene oil, removal of sleepers, fittings, pulling of rails from specified gap at the joint, respacing joint sleepers for fixing welding mould in position, aligning, lifting, levelling of rail ends as directed by the Engineer.
- On completion of welding of Rail joint, the contractor shall ensure re-spacing,repacking the joint sleeper with one round of rough packing, driving back pandrol clips to the position with liners, rubber pads, fish plates and bolts etc., and giving one through packing of respaced joint sleepers as directed by the Engineer in charge in accordance with terms of Special conditions contract for the work.
- The Contractor is required to make available his own tools and plants required for the process including small tools for use at the work spot at his cost such as hammer and chisels, hot and cold sets and provide the service of competent supervisors holding valid competency certificate issued by RDSO, whose salaries, allowances and incidental expenses are to be borne by the contractor.
- The rate includes costs of procurement of welding portions, execution of fusion welding and all allied/ancillary works in terms of contract with contractor’s skilled labour, tools, leads, lifts, destressing of the panels on main line & local/ partial destressing the panels on newly laid loop lines.
- Rail joints welded shall be guaranteed against failures during execution, acceptance & regular Ultrasonic testing and during service upto 2 years from the date of welding and as specified in clause 9 of this Specification for Fusion Welding of Rails.
- The welding of rails if be done on the cess of embankment/cutting, the Railway will arrange for hauling/spreading of rails evenly on the bank/cutting and shall lay out the rails kink free and twist free practically within 2m at ends for the welding and support them on wooden blocks well in advance as per the requirement of welding supervisor of the firm departmentally or contractually through separate contract. In case of any dispute, the decision of Engineer-in-charge will be final.
Tender Documents can be downloaded free of cost from e-procurement portal i.e. https://eproc.karnataka.gov.in.
Source: K-RIDE-Tender | Image Credit (representational): MoR
