Construction of Balance Work of Single Line BG Tunnel No. 10 Main Tunnel (Length-1924 m) and Escape Tunnel (Length-1630 m) and other ancillary Works between Ch. 60760.0 m to Ch. 66280.0 m in Piphema to Menguzuma Section in Connection with Dimapur-Kohima New BG Line Project

G1A-Annexure-I, Annexure-II & Annexure-III (Execution of NS Items) 944248995.74 Below/P

G1A-Execution of USSOR 2021 Items of works as per Annexure-IV 40509820.54 Below/P

Item Breakup - G1A-Annexure-I, Annexure-II & Annexure-III (Execution of NS Items)

Underground excavation for tunnel, cum including temporary provision at the portal for the start of tunnel excavation like canopy structure (false portal) etc. trolley refuge niches, maintenance niches, MVS niches and the like and for the connection of remaining part of access tunnel (approx.85m) with the main tunnel including drilling, blasting or other means of excavation, including widening of top heading footing, breaking of shotcrete lining in temporary invert, provision of surface drainage, construction ventilation, lighting arrangement during construction, temporary back filling for traffic in tunnel, profiling/ re-profiling of tunnel as per approved cross sections, removal and disposal of excavated materials including temporary back fill to dumping site with all lift and leads upto 2 kms from portals/ shaft head as per approved drawings & specifications or as directed by Engineer.(d) Excavation in Rock class VII & VIII, Top heading, bench, invert arch.

Placing of 150 x 150 x 6 mm welded MT wire fabric of Fe 500 as reinforcement in primary lining & Inner lining as per approved drawings & specification or as directed by Engineer. The rate shall include all labour, materials, cost of pins, hook, lead, lift, handling wastage complete with contractors own equipment for the complete job. NFR-CONST HQ-ENGINEERING/N F RLY CONSTRUCTION

Fabrication, leading and erection in MT position permanent tunnel steel supports as per design/ approved drawing including fore poling, cutting drilling, welding /riveting, cold /hot blending, threading, fixing/removing from work, leveling, aligning, fixing in position with providing all accessories such as all nuts, bolts, washers, tie rod, gusset/wall plates, base plate etc. and providing timber struts, prestressing by blocking against rock/soil surface etc. complete including all leads and lifts from fabrication yard to erection site as directed by the Engineer. Calculation of weight for payment under this item will include all structural steel, tie rod, wall plates,base plate, nuts bolts, washers, gussets etc. as per approved drawing as all the accessories are part of permanent steel support in the tunnel.

Supply, drilling installation and grouting Each of 32 Self Drilling bolts of the specified length Fy>=200KN (slope, tunnel support & face bolts) as per approved drawings & specification or as directed by Engineer. The rate shall include costs of all materials, labour, equipment, etc. required for the complete job. b) L = 6m

Supply, drilling installation and grouting Each of 32 Self Drilling bolts of the specified length Fy>=200KN (slope, tunnel support & face bolts) as per approved drawings & specification or as directed by Engineer. The rate shall include costs of all materials, labour, equipment, etc. required for the complete job. c) L = 9m

Supply, drilling and installation and RM grouting of 76mm outer dia self drilling bolts, Fy>=1200 KN of length of 15m as per approved drawings & specification, inclusive of cost of materials, machines, manpower, consumables, T&P, experts, supervision, all leads and lift etc. complete as per scope of work, special conditions of contract and instructions of Engineer-in- charge.

Supply, drilling and installation and Metre grouting of 76mm outer dia self drilling bolts for pipe roof, Fy>=1200 KN of length of 15m as per approved drawings & specification, inclusive of cost of materials, machines, manpower, consumables, T&P, experts, supervision, all leads and lift etc. complete as per scope of work, special conditions of contract and instructions of Engineer-in-charge.

Supply, drilling and installation and Metre grouting of fore poling as per approved drawings & specification or as directed by Engineer . The rate shall include costs of all materials, labour, equipment etc. required for the complete job. a)Self drilling bolts Fy >= 200KN NFR-CONST HQ-ENGINEERING/N F RLY CONSTRUCTION

Fabrication and erection of lattice MT girders and all accessories including all lead, lift wastage, storing drilling holes, fixing in phases etc. and installation of accessories for joining the lattice girder segments as per approved workshop drawings of contractor & specification or as directed by Engineer. The rate shall include costs of all materials, labour, equipment etc. required for the complete job including additional cost for enlarging of heading footing.

Supply and mixing of steel fibre glued Kg hooked end of circular cross section having diameter of 0.55 to 0.60mm & aspect ration ranges from 58 to 65 confirming to EC- certificate of conformity as per EN 14889 & Tensile strength more than 1100 Map & ultimate strain less than 4% as per specification and as directed Engineer.

Supply, drilling hole, installation and Metre grouting of pre-support elements (Pipe roofing) up to 139.7mm OD and up to 15m long with conventional drilling techniques at a shallow look out angle from the tunnel axis with specialised drill bit and casing systems providing direction control and installation accuracy as per approved drawings and Specifications or as directed by Engineer, with contractors men, material, consumables including grout coupling, plants, equipments, machineries, including all lead & lifts loading , unloading etc required for the complete job. a) Seamless pipe, OD 114.3mm, 6.3mm thick, Yield load 1200KN

Fiber glass bolts: Supply, transporting Metre to site, drilling, installation, testing and grouting of Fiber glass bolts of the specified length, 32/15, Yield load 500 KN (For Face Bolting) as per approved drawings and Specifications or as directed by Engineer, with contractors men, material, consumables, plants, equipments, machineries, including all lead & lifts loading , unloading etc required for the complete job

Shotcreting with designed mix cement Sqm concrete M 25 as per specification & drawings or as directed by Engineer in charge including all materials (excluding cement and steel fibers), labour, equipment all lead & lift etc. required for complete job b)200 mm thick shotcrete lining in tunnel

"Shotcreting with designed mix cement Sqm concrete M 25 as per specification & drawings or as directed by Engineer in charge including all materials (excluding cement and steel fibers), labour, equipment all lead & lift etc. required for complete job c)250 mm thick shotcrete lining in tunnel"

Shotcrete with designed mix cement cum concrete M-25...........etc Filling of cavities, widening of top heading footing in tunnel NFR-CONST HQ-ENGINEERING/N F RLY CONSTRUCTION

Shotcreting with designed mix cement cum concrete M 25 as per specification & drawings or as directed by Engineer in charge including all materials (excluding cement and steel fibers), labour, equipment all lead & lift etc. required for complete job f) 100 mm/ 150 mm thick shotcrete in slope stabilization

Design mix cement concrete M15 or M cum 20 or M 25 in following Rcc works excluding cement and including machine mixed machine batched,machine vibrated form work etc. a) Fill concrete in Tunnel

Grouting improvement or filling of voids and cavities using suitable materials and mixtures as appropriate. Rate is excluding cost of cement.

Drilling of 40 mm diameter holes in Metre rock in in shortcrete lining as weep holes relief holes of required length in any direction as per approved drawings & specification or as directed by Engineer

Exploratory drilling & Drainage holes up Metre to 35 m length, 10m overlay as per approved drawings & specification or directed by Engineer a) Horizontal/ Sub horizontal in all kind of rocks, Diameter equal or greater than 50mm

Drilling holes for different dia and upto RM 5.0 m deep inside concrete, shortcrete, rock for pressure / consolidation grouting with cement and additives at a pressure of upto 5.0 Kg per square cm, inside tunnels with contractors men, materials, consumables, tools and plants, equipment, machinery, including all lead and lift, unloading as directed by Engineer in Charge etc. complete.

Percussion drilling (Dia.50-65 mm)

Supply and fixing of 100 to 150 mm dia RM MS pipe ('C'-Class) in bore holes for cavity concreting/ fixing with contractor tools and plants, equipment, mancheneries, including all leads Etc.

Rectification work inside a tunnel which cum involves dismantling of old concete in lining (m-25) or backfill conc.(M-20) from behind the ribs and cutting, dismantling of ISMB ribs/steel Bars/other steel sections used in tunnels etc. and removing the concrete debris / cut pieces of steel sections/other steel sections from the actual site of dismantle to outside the Tunnel. Dismantle of concrete in lining / back fill concrete.

Dismantling / Cutting of existing steel MT ISMB Ribs / other sections by any means, machineries (Everything will be arranged by contractor). Rate includes every arrangement including supporting system to save Tunnel etc. Total 863629485.03 NFR-CONST HQ-ENGINEERING/N F RLY CONSTRUCTION Item- 3 Annexure-II (NS items) S No. Item Description of Item Unit Qty Rate Amount No

Supply of lattice girders and all MT accessories including all lead, lift, wastage, storing, drilling holes, fixing in phases etc. and installation of accessories for joining the lattice girder segments as per approved workshop drawings of contractor & specification or as directed by Engineer. The rate shall include costs of all materials, labour, equipment, etc. required for the complete job.

Supply of 150 x150 x 6mm welded wire MT fabric of fe 500 as reinforcement in primary lining & inner lining as per approved drawings & specification or as directed by Engineer. The rate shall include all labour, materials, cost of pins, hock. lead, lift handling, wastage complete with contractors own equipment for the complete job.

Supply of approved quality steel MT components of various sections & other steel items conforming to relevant Code, Standards, specifications for permanent steel supports in tunnels inclusive of cost of materilas, wastage, storing,handling, machines, ,manpower, consumables, T&P, experts, supervision, all leads & lifts, taxes etc., complete as per scope of work, special condition of contract & instruction of Engineer- in- charge. NOTE: (i) Admissible quantities under this item will be as per item 9 of Schedule 'A' i.e. "Fabrication, leading and erection in position permanent tunnel steel supports". Total 35091205.71 Item- 4 Annexure-III (Supply of Micro fine Cement) S No. Item Description of Item Unit Qty Rate Amount No

Supply of Micro Fine Cement (D95<15 MT Microns). Total 45528305.00

Item Breakup - G1A-Execution of USSOR 2021 Items of works as per Annexure-IV

2827.00 approved brands/makes

2786.00 approved brands/makes Total 50567745.03

Item Breakup - G1C-For Unforeseen Works

For Civil works Total 52729941.00