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| 1 | Laying Works: In Soft SoilLoading, Unloading material from CGS ,Excavation, trenching, pipe line laying, welding, Radiography (100%), joint coating, lowering, laying of warning mat, hydro testing, pipe line cleaning , swabbing, site restoration, installation of route marker (as per norms of PNGRB), submission of as built drawing and pipe book , testing and commissioning including Nitrogen Purging. |
| 2 | MATERIAL - \"Receiving and taking over\" as defined in the specifications, handling, loading, transportation and unloading of Owner supplied 3-Layer PE coated pipes & fittings from Owner\"s designated stack-yard to Contractor\"s stock yard/ workshop/ work-site. Execution of preliminary activities, preparation of drawings, wherever required for crossing etc. including handling, stacking, stringing on the pipeline in Right-of-Use/ pipeline route alignment. Carrying out inspection of company supplied materials including line pipes at the time of taking over, laying/ installation of coated line pipes, associated buried valves, flanges, Tees & fittings of all sizes. Making availability of additional lands required for Contractor\"s storage, fabrication, access for construction etc. Procurement and supply of all materials (except Owner supplied materials), consumables, equipment, labour and other inputs. Carrying out all temporary, ancillary, auxiliary works required for ready for commissioning of pipeline as per drawings, specifications, codes,PNGRB regulations, T4S, other provisions of Contract document and instructions of Engineer I/C, including but not limited to carrying out the following works: |
| 3 | SURVEY - Surveying of route and detours required at the time of execution including marking the same in topographical sheet, preparation of construction drawings showing survey details, and submit same to Owner for review/ approval. |
| 4 | ROU - Clearing, Grubbing, Grading & Raking up of all kind of surface of any type including plants (excluding forest plants & trees which shall be under DFO/ Concerned Authority Instructions), shrubs, metal, concrete, bituminous, tiled, brick lined, soft rock etc. All tiles/ slabs/ curb stones etc. removed during excavation shall be placed properly. Any type of rake up surface to be restored to its original position. |
| 5 | TRENCHING - Trenching to all depths by excavation in all types of terrain/ strata including soft/ hard rock and various type of pavement/ footpath/ roads etc. including rock breaking, chiselling or otherwise cutting, excavation etc. asrequired and storing excavated soil, reusable materials at designated area as directed by Engineer in charge & as per the relevant standard/ specification etc. The minimum depth of the trench for laying of Steel pipeline shall be 1.5 - 2Mtrs. (as directed by Authority/E-I-C) measured from lowest available datum level adjacent to the trench or the periphery of the pipeline route. The depth may increase accordingly at places as per site condition or as per SCC/ OISD-141/ OISD- 226, PNGRB T4S, ASME Codes etc. whichever is higher. Clearing the bottom of trench by removing boulder, pebbles, etc. Undertaking proper safety measures, installing side plates/bracing etc. for protection of trench sides from collapsing.Dewatering of trenches to be done properly and no extra soil to be left over on roads/site. Excavation required for preparation of Tie-In Pits is covered in this item. No extra/separate claims/payments under any clause/condition shall be made. |
| 6 | WELDING & NDT – Checking, cleaning, aligning, bending, cutting and bevelling (if required) of pipes for welding and field adjustments including pipe fittings, welding, carrying out non-destructive testing of welds as required including 100% radiography by X-ray for Mainline welding & Gamma-Ray for Tie-In Joints of lowered section (in trench) only and providing all requisite equipment, labour, supervision, materials, films, consumables, all facilities and personnel to process, develop, examine and interpret radiographs and other tests as required, carrying out repairs of weld joints found defective by Engineer-in-Charge, carrying out re- radiography and other tests as required on repaired joints. All tieing-in, including the tie-in(s) of the pipeline with the adjacent sections of pipeline includingcutting of test header, rebevelling as required, radiography and other NDT examination, joint coating as per specification. |
| 7 | COATING - Coating of field weld joints, bends, elbows, buried fittings and valves etc. including supply of coating materials etc. (i.e. heat shrinkable sleeves and high build epoxy etc.) as per Technical Specification compatible with 3 layer PE coating material of the line pipe. Carrying out repairs of pipe defects/ replacement in case of irreparable defects and repairs of defects of pipe coating not attributable to Owner including defects/ damages occurring duringtransportation/ handling. |
| 8 | LOWERING & BACKFILLING - Installation/ lowering the pipeline in trench to required depth, supply and placement of PE warning mat Anti-Rodent type as per approved specifications over the pipeline along the complete route, padding around pipeline with suitable approved soil including supply of padding material, backfilling with available & borrowed earth (if required), approved excavated material and/or other suitable soil by crowning. Supply and installation of slope breakers, wherever required or, as directed by Owner, Engineer–in–charge. Supply and installation of bank protection along with backfill materials duly approved by EIC for pipeline trench and banks falls under minor water body crossing as per technical specification & Std. Drg., wherever required or, as directed by Owner/ EIC. Training and diversions of streams in steep slope area, wherever required.Supplying and filling coarse sand under floors, in foundations, floor, trenches, plinth etc. including cost-of sand, royalty, transportation,loading, unloading, spreading in layersnot exceeding 20 cm., watering, ramming, compacting, dressing and levelling etc. complete in all respects inclusive of cost of all labour, materials, tools, tackles etc. as per drawings, specifications and direction of E-I-C. |
| 9 | RESTORATION - Supply and installation of construction markers (RCC Markers - to be installed at a distance of 50 mtr through out of pipeline), clearing, fencing, grubbing, cutting of trees, full filling all the requirements of various statutory/ environment authorities to the entire satisfaction of concerned authorities, grading of work area. Shifting of all obstruction within the ROU/ Pipeline route alignment viz. electrical lines/ poles, telephone line/ poles, etc. coordination with concerned authorities and obtain permissions from these authorities. Final clean- up of right-of-use or area disturbed by contractor during their construction activities for laying of pipeline works and disposal of debris and surplus material to designated disposal areas and backfilling of trench and compaction of thesame as per satisfaction of Owner and / Or as directed by Engineer I/C. |
| 10 | TESTING - Carrying out air cleaning, pigging, flushing, cleaning and hydrostatic testing of complete pipeline as per specification and approved by Engineer I/C to specified pressures indicated elsewhere and duration after stabilization as per specification, providing all equipment, pumps, fittings, instruments, dead weight tester, pressure recorder, thermocouples etc., and services, supervision, labour, consumables, water etc. as required and approved by Engineer I/C. |
| 11 | Carrying out GIS Data Collection & Entry for each Pipeline Assets / Cut Points / Jointers (Latitude / Longitude) With attributes as per satisfaction of Owner and / Or as directed by Engineer I/C.Submission of Data in the GIs format of. Shp,. Kml. Accuracy of the collection of assets / Cut points/ Joints to be in accuracy to be maintained 30cm -60cm. |
| 12 | AS-BUILT - Preparation of as-built drawings, pipe-books (3 hard copies of pipebook including as built drawings and 2 soft copies) All the works shall be executed in accordance with the provision of contract including carrying out all temporary/ ancillary/ auxiliary works required for the performance of the works and all other acts, deeds, matters and things necessary to make the pipeline ready for pre-commissioning activities. |
| 13 | 4\"x 6.4mm Wall Thck X-42Pipeline Laying (1.5 m Pipe Top Cover) |
| 14 | Note :-Pipe free issue by Client |
| 15 | INSTALLATION OF CARRIER PIPE BY HDD METHOD |
| 16 | SCOPE - Complete work of installation of carrier pipe at crossings or wherever required by HDD method for roads, nala, drain and canal wherever required in all types of soils/ murram and terrains including scope covered in Item A above but not limited to string preparation of pipes, welding, welding repair, radiography, coating of field joints with special type of Heat Shrink Sleeve (Dirax) and repair of pipeline coating with special repair patch materials as per Specification, pre- testing/ post testing etc. of complete string made for crossing. Rate for this SOR item for steel pipeline laying is inclusive of carrier pipe string preparation (Welding, NDT, Pretesting, Coating, Hydro testing, Pre-commissioning etc.).Incl.Installation of Warning Marker at Entry and Exit Point. |
| 17 | SURVEY - Pre-Construction survey based on site visit, collection of data (if required) from concerned Authority including design and detail engineering and making of crossing/ laying along route drawings for getting their approval from concerned Authority/ Engineer-in-Charge, getting work permit/ NOC for crossings as well as utility crossings (if any) encountered during crossings prior to start of the execution of work. Additional land required for placement of HDD equipments and/ or string preparation shall be in Contractors scope. |
| 18 | DRILLING - Drilling to required depth including maintenance/ restoration of drill hole in all types of soils/ murram/ mixed strata, all depth to accommodate the pipeline at all conditions encountered during crossing/ laying along route by approved HDD methods procedure for providing minimum cover specified in code/ specification/ PNGRB regulations or as decided by concerned authority, whichever is more. |
| 19 | RESTORATION - Backfilling of the ditch/ trench including restoration and clean-up of area and all other works including cleaning, gauging and final hydro testing etc. along with mainline works required as per specification, approved drawings, calculations, methods and to the satisfaction of Engineer I/C and/or as directed by concerned Authority. |
| 20 | INSTALLATION OF CARRIER PIPE BY HDD METHOD - Uncased CROSSING (SoftSoil) |
| 21 | 4\" NB Uncased crossing by HDD M/C |
| 22 | TEMPORARY CATHODIC PROTECTION |
| 23 | Design, detailed engineering, supply, installation, testing and commissioning of the temporary Cathodic protection system using Mg/ Zn galvanic anodes to protect the external surface of 3 LPE coated entire length steel pipeline network against corrosion for design life of minimum 2 years or till commissioning of PCP system whichever is later as per standard specification for temporary cathodic protection system. Scope shall also include but not limited to the following for completion of jobs: |
| 24 | Measurement of soil resistivity along the right of way of the main pipeline route as per specification for design & installation of anodes. Collection of additional data related to cathodic protection along the right of way of pipeline as per specifications. |
| 25 | Supply, installation, testing & commissioning of one set of spark gap arrestor with 2 plate Zinc grounding cell of 20 kg net weight each across each insulating joint as per specification. Supply & installation of Zinc Ribbon Anodes at 4-8 O\"clock position in the interval of 2 metre (max.) on carrier pipes at all cased crossings i.e. railways/ roads etc. |
| 26 | Supply, installation, testing & commissioning one set of polarisation cell with zinc anode at all high tension (66KV or higher) electrical power transmission line/Equipment crossing or running parallel to the pipeline for grounding purpose as per specification. The rating shall depend upon anticipated fault current & ground bed resistance at the location of installation. However, the rating of polarisation cell (krick) shall not be less than 5 KA & number of 20 kg net weight zinc anode shall not be less than two. |
| 27 | Monitoring of the protection system till commissioning of pipeline or till final handover, whichever is earliest.. |
| 28 | All civil/ structural works related to TCP system including supply of bricks, cement & steel etc. required for completion of the system. |
| 29 | The quantities mentioned above are tentative and quantities for above including supply items shall be finalised & procured by Contractor only after due approval of EIC. Contractor supplied any surplus item during reconciliation shall not be accepted / taken by the Owner. |
| 30 | For all the supply items mentioned above, procurement shall be made as per specification & Data Sheets, after due approval of Engineer-incharge. |
| 31 | 4\"x 6.4mm Wall Thck X-42Pipeline Laying (1.5 m Pipe Top Cover) |
| 32 | Other Items |
| 33 | Extra Excavation in soil |
| 34 | Breaking of Bituminous Road / Tar Road / Hard Soil |
| 35 | Breaking of RCC with Electrical / Pneumatic / Hydraulic Breaker Machine. |
| 36 | Liasioning Cost (if required) with various government / Semi government / Private land owner after receiving Principle permissions from IOAGPL |
| 37 | Chipping Carpet Road Restoration: Excavation – 1500mm thick (1.50m3); Sand Filling – 750mm thick (0.75m3); Granular Sub-Base (GSB) – 450mm thick (0.45m3); Wet Mix Macadam (WMM) – 300mm thick (0.30m3); Prime Coat – 1 m2; Premix Surfacing– 1m2 |
| 38 | BM BC Road restoration: Excavation – 1500mm thick (1.50m3); Sand Filling – 750mm thick (0.75m3); Granular Sub-Base (GSB) – 450mm thick (0.45m3); Wet Mix Macadam (WMM) – 300mm thick (0.30m3); Prime Coat – 1 m2; Tack Coat – 1m2; Bituminous Macadam (BM) – 50mm thick (0.050m3); Bituminous Concrete (BC) – 30mm thick (0.03m3) |
| 39 | Restoration of Ashphalted Road |
| 40 | Restoration of BM & BC Road |
| 41 | PRE-COMMISSIONING AND ASSISTANCE IN COMMISSIONING OF PIPELINE SYSTEMSwabbing, drying, purging with nitrogen of the complete pipeline network and the associated facilities being installed to the specified acceptance criteria, carrying out pre-commissioning works, providing assistance during the complete duration of commissioning operations for entire pipeline network system including supply of all equipment, man-power, consumables (including pigs & nitrogen required for purging with maintaining nitrogen column of minimum 10% of pipeline geometric volume) materials for all temporary works and performing all associated works, complete as per the relevant specifications, other provisions of Contract document and instructions of Engineer-in-charge. |
| 42 | 4\" NB/ 6.4 MM (0.252\")/ API 5L GR. B (ERW) |
| 43 | PERMANENT MARKERS |
| 44 | Permanent Markers supply, fabrication and installation of all types of permanent markers along the route including all associated civil works such as excavation in all types of soil, construction in all types of soil, construction of pedestals and grouting with concrete, clearing, supply and application of approved colour and quality of primer and paint (powder coated), stencil letter cutting for numbers, direction, chainage etc., restoration of area to original condition and performing all works as per drawing, specification and instruction of Owner/Owner’s Representative |
| 45 | PIPELINE MARKER(STEEL) (Directional Markers, Warning Markers, Kilomenter Markers.) |
