North Eastern Electric Power Corporation Limited-NEEPCO has published Tender For Package-I Civil And Hydro-Mechanical Works Of Diversion Tunnels Pertaining To Tato-Ii Hydro Electric Project (700 Mw), Arunachal Pradesh. Submission Date for this Tender is 10-06-2024. Civil Work Tenders in West Siang Arunachal Pradesh. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 15-Dec-2023 | Corrigendum No. 1 Dated 15-12-2023 | Other | 29-01-2024 |
| 2 | 15-Dec-2023 | Pre-bid Clarification No. 1 Dated 15-12-2023 | Other | 29-01-2024 |
| 3 | 19-Dec-2023 | Pre-bid Clarification No. 2 Dated 19-12-2023 | Other | 29-01-2024 |
| 4 | 17-Jan-2024 | Pre-bid Clarifications No. 3 Dated 17-01-2024 | Other | 29-01-2024 |
| 5 | 19-Jan-2024 | Corrigendum No. 2 Dtd. 19-01-2024 | Other | 29-01-2024 |
| 6 | 19-Jan-2024 | Pre-Bid Clarifications No. 4 Dtd. 19-01-2024 | Other | 29-01-2024 |
| 7 | 25-Jan-2024 | Corrigendum No. 3 Dated 25-01-2024 | Date | 26-02-2024 |
| 8 | 12-Feb-2024 | Corrigendum No. 4 Dtd. 12-02-2024 | Other | 26-02-2024 |
| 9 | 12-Feb-2024 | Pre-Bid Clarifications No. 6 Dtd. 12-02-2024 | Other | 26-02-2024 |
| 10 | 12-Feb-2024 | Pre-Bid Clarifications No. 5 Dtd. 12-02-2024 | Other | 26-02-2024 |
| 11 | 26-Feb-2024 | Corrigendum No. 5 Dtd. 26-02-2024 | Date | 27-03-2024 |
| 12 | 27-Mar-2024 | Corrigendum No. 6Dtd. 27-03-2024 | Date | 29-04-2024 |
| 13 | 02-Apr-2024 | Pre-bid Clarifications No. 7 Dated 02-04-2024 | Other | 29-04-2024 |
| 14 | 09-Apr-2024 | Corrigendum No. 7 Dated 09-04-2024 | Other | 29-04-2024 |
| 15 | 29-Apr-2024 | Corrigendum No. 8 Dtd 29-04-2024 | Date | 10-06-2024 |
| FileName | File Description | File Size |
| 547ad3fa-0c36-41a8-bb18-e616257e2f7d.html | Tender Notice | 0 KB |
| BidDoc.rar | Tender Document | 0 KB |
| BOQ_192941.xls | Tender Document | 0 KB |
| Tendernotice_1.pdf | Tender Document | 0 KB |
| Sl. No. | Item Description |
| 1 | 1. CONTROL OF WATER, CONSTRUCTION DRAINAGE AND DEWATERING |
| 2 | 1.1 Control of water, dewatering of surface/underground construction sites including all construction works, labor, plants and materials necessary to keep the construction sites free of water during the contract period. Complete in all respect as per technical specification, drawings and as directed by Engineer-in-Charge. |
| 3 | 1.1.1 Dewatering of surface construction sites including all plants, materials, labour, installation, operation, power supply, maintenance and removal of pumping equipment from site |
| 4 | 1.1.2 Dewatering of underground construction sites including all plants, materials, labour, installation, operation, power supply, maintenance and removal of pumping equipment from site |
| 5 | 1.1.3 Construction of Temporray Ring Bund Complete in all respect with all plant, materials, labour, all lead & lifts, etc. as per technical specifications, drawings and as directed by Engineer-in-Charge |
| 6 | 1.1.3.1 Clay/Earth/Random Fill |
| 7 | 2. SURFACE EXCAVATION AND BACKFILL |
| 8 | 2.1 Surface excavation including loading, transport, all lift and lead up to 3.0 km from the excavation area/working site, unloading at disposal sites or stockpiles and maintenance of the disposal sites or stockpiles. Construction of haul roads (if any) and its maintenance. Complete in all respect as per technical specification, drawings and as directed by Engineer- in-Charge. |
| 9 | 2.1.1 Diversion Tunnel |
| 10 | 2.1.1.1 Clearing of excavation areas, disposal areas and stockpiles |
| 11 | 2.1.1.2 Excavation in soil including stripping of top soil |
| 12 | 2.1.1.3 Excavation in soft and disintegrated rock |
| 13 | 2.1.1.4 Excavation in hard rock |
| 14 | (a) Drilling and blasting |
| 15 | (b) Line-drilling |
| 16 | 2.1.2 Cost of Haulage including loading & unloading of excavated materials For all types of Tracks beyond initial lead of 3.00km (Lead = 2 km) |
| 17 | 2.1.3 Backfilling |
| 18 | (a) Random backfill |
| 19 | (b) Selected backfill |
| 20 | (c)Free-draining backfill |
| 21 | (d) Sand-gravel backfill |
| 22 | 2.1.4.1 Providing and laying Pitching complete as per drawings and technicalspecifications at locations as directed by the Engineer-in-Charge Stone/ Boulders |
| 23 | 2.1.4.2 Providing and laying boulders apron on river bed for protection against scour with stone boulders weighing not less than 40 kg each complete as per drawings and technical specification. Boulders laid without wire crates |
| 24 | 3. UNDERGROUND EXCAVATION |
| 25 | 3.1 Underground excavation of Diversion Tunnel including excavation by drill and blast, mechanical, manual or conventional methods; including all survey and setting-out, all lifts, transportation and unloading at disposal sites upto 3.0 km from the nearest portal and including maintenance of the disposal sites or stockpiles. Construction of haul roads (if any) and its maintenance. Complete in all respect as per technical specification, drawings and as directed by Engineer-in-Charge. |
| 26 | 3.1.1 Diversion Tunnel including handling of excavated materials upto 3.0 km from the nearest portal |
| 27 | (a) Excavation in class 2 |
| 28 | (b) Excavation in class 3 |
| 29 | (c) Excavation in class 4 |
| 30 | (d) Excavation in class 5 |
| 31 | 3.1.2 Loading, transport including all lift and lead upto 3.0 km and unloading of accepted geological overbreak of Diversion Tunnel at disposal areas or stockpiles |
| 32 | 3.1.3 Cost of Haulage including loading & unloading of excavated materials Katcha Track beyond initial lead of 3.00km (Lead = 2 km) |
| 33 | 4. ROCK SUPPORT |
| 34 | 4.1 Rock support for underground excavation of Diversion Tunnel including all plants, materials and labour. Complete in all respect as per technical specification, drawings and as directed by Engineer-in-Charge. |
| 35 | 4.1.1 Shotcrete M25 including admixtures in underground works with articulated wet type shotcrete machine to the theoretical thickness as shown on the drawings or as directed by the Engineer-in-charge |
| 36 | (a) Without Steel Fibre Reinforcement |
| 37 | (b) With Steel Fibre Reinforcement |
| 38 | 4.1.2 Supply and fixing in position Precast R.C.C. laggings |
| 39 | 4.1.3 Supply and installation of resin/cement grouted rock bolts of any size and length in underground excavations, as shown on the drawings or as directed by the Engineer-in- charge, including all plants, materials and labour required for drilling, cleaning, installing, grouting and testing of the bolts. Complete in all respect |
| 40 | (a) 25mm dia |
| 41 | (b) 32mm dia |
| 42 | 4.1.4 Supply and installation of Swellex Type rock bolts of any size and length in underground excavations, as shown on the drawings or as directed by the Engineer-in-charge, including all plants, materials and labour required for drilling, cleaning, installing, grouting and testing of the bolts. Complete in all respect 25 mm dia |
| 43 | 4.1.5 Fabrication and erection of Steel ribs as permanent support as per the drawings or as directed by the Engineer-in-charge including all plants, materials, labour and accessories. Complete in all respect |
| 44 | 4.1.6 Supply and providing of Forepoling with grouted anchor bars, length, dia, spacing and overlap to be determined on site by the Engineer-in-charge including all plants, materials and labour. Complete in all respect |
| 45 | 4.1.7 Providing & fixing high tensile seamless pipe casing (minimum 21m long) of dia. 76-139mm & thickness 6-10mm, driven into medium using symmetrix drilling system (or equivalent) using sacrificial drill bits with all materials, accessories, equipments-machineries and labour ect. as per technical specification, drawings and as directed by Engineer-in-Charge complete in all respect. |
| 46 | 4.1.8 Providing steel canopy support in underground excavation (HRT) including supplying , fabrication and installation at site with all materials, accessories, equipments-machineries and labour ect. as per technical specification, drawings and as directed by Engineer-in- Charge complete in all respect. |
| 47 | 4.1.9 Welded Wire Mesh |
| 48 | 5. SLOPE PROTECTION |
| 49 | 5.1 Slope protection in surface excavation including all plants, materials and labour. Complete in all respect as per technical specification, drawings and as directed by Engineer-in-Charge |
| 50 | 5.1.1 Rip-Rap |
| 51 | 5.1.1.1 Bedding |
| 52 | 5.1.1.2 Rip-Rap |
| 53 | 5.1.2 Rock Paving |
| 54 | 5.1.2.1 Dry rock paving |
| 55 | 5.1.2.2 Rock paving in mortar |
| 56 | 5.1.3 Gabions |
| 57 | 5.1.4 Masonary walls |
| 58 | 5.1.5 Supply and installation of resin/cement grouted rock bolts of ø 25 mm, length = variable in surface excavations, as shown on the drawings or as directed by the Engineer-in-charge, including all plants, materials and labour required for drilling, cleaning, installing, grouting and testing of the bolts. Complete in all respect |
| 59 | 5.1.6 Shotcrete M25 including admixtures in open excavation with dry type/articulated wet type shotcrete machine to the theoretical thickness as shown on the drawings or as directed by the Engineer-in-charge |
| 60 | 5.1.6.1 Without Steel Fibre Reinforcement |
| 61 | 5.1.6.2 With Steel Fibre Reinforcement |
| 62 | 5.1.7 Wire mesh |
| 63 | 5.1.7.1 Chain link fabric/Welded wire mesh |
| 64 | (a) Welded Wire Mesh |
| 65 | 5.1.8 Supply and Installation of Grouted Anchor Bars of any size and length alongwith all plants, materials and labour required or drilling, cleaning, installing and grouting. Complete in all respect |
| 66 | 5.1.8.1 25 mm dia |
| 67 | 5.1.8.2 32mm dia |
| 68 | 6. CONCRETE |
| 69 | 6.1 Complete in all respect with all plants, materials, formwork, scaffoldings, staging, labour, all lead and lift etc. as per technical specification, drawings and as directed by Engineer-in- Charge. |
| 70 | 6.1.1 Plain/reinforced cement concrete in Inlet & Outlet Structures, etc. |
| 71 | 6.1.1.1 M15-40 |
| 72 | 6.1.1.2 M20-40 |
| 73 | 6.1.1.3 Concrete block for launching apron (M 15-40) |
| 74 | 6.1.1.3.1 Second stage concrete in blockout including formwork |
| 75 | 6.1.1.4 M25-20 |
| 76 | 6.1.1.5 M-15 in backfill, foundation & earth retaining structures |
| 77 | 6.1..2 Plain/reinforced cement concrete in Diverson Tunnel |
| 78 | 6.1.2.1 Cement concrete of M25 grade in Diversion Tunnel lining including formwork |
| 79 | 6.1.2.2 Backfilling upto pay line with M20 concrete |
| 80 | 6.1.2.3 Backfilling of accepted geological overbreak (upto 7% of pay line) with M20 concrete for Diversion Tunnel |
| 81 | 7. STEEL FOR REINFORCEMENT |
| 82 | 7.1 Complete in all respect with all plants, materials, labour, all lead and lift etc. as per technical specification, drawings and as directed by Engineer-in-Charge. |
| 83 | 7.1.1 Mild Steel Reinforcement |
| 84 | 7.1.2 High yield strength deformed reinforcement |
| 85 | 7.1.2.1 Diversion Tunnel |
| 86 | 7.1.2.2 Inlet & Outlet Structures |
| 87 | 8. DRILLING |
| 88 | 8.1 Complete in all respect with all plants, materials and labour as per technical specification, drawings and as directed by Engineer-in-Charge. |
| 89 | 8.1.1 Percussion drilling |
| 90 | 8.1.1.1 Diversion Tunnel |
| 91 | (a) Drill holes up to ø 48 mm, length 10 - 30 m |
| 92 | 8.1.2 Rotary drilling |
| 93 | 8.1.2.1 Diversion Tunnel |
| 94 | 8.1.2.1.1 Drill holes up to ø 76/80 mm, length < 30 m |
| 95 | 8.1.3 Installation of pipes |
| 96 | 8.1.3.1 Supply and installation of PVC pipes of 76mm dia (plain or slotted) including fittings and accessories |
| 97 | 8.1.4 Drilling for Pre- Grouting |
| 98 | 8.1.4.1 Drill holes up to ø 45 mm upto 10mm long for Pre-Grouting with Cement |
| 99 | 8.1.4.2 Drill Holes up to 57mm upto 30m long for Pre-Grouting with Colloidal Silica |
| 100 | 9. GROUTING |
| 101 | 9.1 Complete in all respect with all plants, materials and labour as per technical specification, drawings and as directed by Engineer-in-Charge. |
| 102 | 9.1.1 Contact grouting, grouting pressure = 2 to 5 kg/cm2 |
| 103 | 9.1.1.1 Contact grouting behind tunnel liner (concrete or steel) |
| 104 | 9.1.2 Consolidation and curtain grouting (grouting pressure = 2 to 20 kg/cm2) |
| 105 | 9.1.2.1 Diversion Tunnel, Inlet, Outlet, Portal and in any other areas as directed by the Engineer-in Charge |
| 106 | (a) Single - stage grouting |
| 107 | (b) Multiple - stage grouting, descending |
| 108 | (c)Multiple - stage grouting, ascending |
| 109 | (d) sand to be used in sand-cement grouting |
| 110 | (e) Pre-grouting with Cement |
| 111 | (f) Pre-grouting with Colloidal Silica |
| 112 | 9.1.3 Water pressure testing |
| 113 | 9.1.3.1 Simple water pressure tests |
| 114 | 9.1.3.2 Comprehensive water pressure tests |
| 115 | 10. INSTRUMENTATIONS AND MONITORING |
| 116 | 10.1 Tape extensometer station |
| 117 | 10.2 Optical convergence measurement station |
| 118 | 11. MISCELLENEOUS STEEL SECTIONS |
| 119 | 11.1 Supply, fittings & fixings of metal works in all structure. Complete in all respect with all plants, materials and labour as per technical specification, drawings and as directed by the Engineer-in-Charge |
| 120 | 11.1.1 Supply & Installation of Steel Pipes |
| 121 | 11.1.1.1 75 mm dia. |
| 122 | 11.1.1.2 100 mm dia. |
| 123 | 11.1.1.3 200 mm dia. |
| 124 | 11.1.1.4 300 mm dia. |
| 125 | 11.1.2 Miscelleneous Steel Sections |
| 126 | 11.1.3 Ladders & Climbing Iren |
| 127 | 11.1.4 Erection Hooks |
| 128 | 11.1.5 Steel Anchoring |
| 129 | 11.1.6 Supply & installation of Non Return Valve in Diversion Tunnel |
| 130 | 12. HYDRO-MECHANICAL WORKS |
| 131 | 12.1 Design, supply, manufacture, inspection, shop assembly, painting, transportation, site storage & site erection, testing & commissioning including all labor, tools, tackles, plant & material of 4100 mm x 10400 mm fixed wheel type Diversion Tunnel Gate complete with accessories like wheels, guide Rollers, seals, lifting lugs and embedded parts including sill beam, seal seats, guides, tracks, etc. in accordance with technical specifications, drawing and as per instruction of the Engineer-In-Charge. |
| 132 | 12.1.1 Gate Leaf: 1. Cost of Design & Drawings 2. Material Cost 3. Fabrication Cost including painting 4. Transportation Cost including Insurance 5. Cost of erection including cost of labour tools, tackles, plant & machineries, etc. |
| 133 | 12.1.2 Embedded Parts: 1. Cost of Design & Drawings 2. Material Cost 3. Fabrication Cost including painting 4. Transportation Cost including Insurance 5. Cost of erection including cost of labour tools, tackles, plant & machineries, etc. |
| 134 | 12.2 Steel Lining upstream & downstream of gate groove including groove lining including all necessary embedment and stiffeners complete as per specifications and drawings to the satisfaction of Engineer-in-Charge: |
| 135 | 12.2.1 Break-up: 1. Cost of Design & Drawings 2. Material Cost 3. Fabrication Cost including painting 4. Transportation Cost including insurance 5. Cost of erection including cost of labour, tools, tackles, plant & machineries, etc. |
| 136 | 12.3 Design, manufacture, inspection, shop assembly, painting, transportation, site storage & site erection, testing & commissioning including all labor, tools, tackles, plant & material of electrically operated rope drum hoists suitable for operation of diversion tunnel gate of size 4100 mm x 10400 mm under conditions specified in technical specification complete with all accessories including local control panels, trestles and hoist bridge in accordance with the specifications and drawings to the satisfaction of Engineer-In-Charge. |
| 137 | 12.3.1 Break-up: 1. Cost of Design & Drawings 2. Material Cost 3. Fabrication Cost including painting 4. Transportation Cost including Insurance 5. Cost of erection including cost of labour, tools, tackles, plant & machineries, etc. |
| 138 | 12.4 Design, manufacturer & supply at site of the spare parts as per list given in the technical specification |
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