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Doha, State of Qatar
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We construct infrastructure is focused on delivering business performance through a highly flexible and responsive approach, which is characterized as being business ready. We have a highly experienced team of professionals, who execute projects with flexibility and speed. As a company, we are prepared up for the challenge and demands of the growing Qatari market.
INFRASTRUCTURE
DI PIPE INSTALLATION
Installation of DI Pipes from various diameters from 80mm up to 600mm from site surveying up to commissioning.
LIST OF METHOD STATEMENT | |
1. | Setting Out & Trial Holes |
2. | Trench Excavation |
3. | Sand Bedding |
4. | Pipe/ Joint Wrapping & Pipe Laying |
5. | Sand Surround |
6. | Backfilling 1st Layer & Trench Marker Tape |
7. | Backfilling 2nd Layer |
8. | Hydraulic/Pneumatic Swabbing |
9. | 9-Bar/6-Bar Test |
10. | Sterilizing/Water Sample |
11. | Blinding, Base, Wall & Cover Works For Chambers/Precast Chambers |
12. | Asphalt & Reinstatement Works |
13. | Service Connections (25mm,50mm,63mm MDPE) |
INSPECTION & TESTING
LIST OF ITP | |
1. | Setting out & Trial Holes |
2. | Trench Excavation |
3. | Sand Bedding |
4. | Pipe/ Joint Wrapping & Pipe Laying |
5. | Sand Surround |
6. | Backfilling 1st Layer & Trench Marker Tape |
7. | Backfilling 2nd Layer |
8. | Hydraulic/Pneumatic Swabbing |
9. | 9-Bar/6-Bar Test |
10. | Sterilizing/Water Sample |
11. | Site Cleaning |
MDPE INSTALLATION
- This specification covers laying of MDPE (Medium Density Poly Ethylene) pipes with associated fittings for size range 20 mm (1/2”) up to 63 mm (2”) underground and aboveground.
- Excavation and backfilling for MDPE service connection will be in accordance with standard and specifications with a trench depth of 600mm.
- MDPE service pipe shall have 100 mm sand bedding, 150 mm sand cover above crown of the pipe, another 150 mm selected backfill material with 100 % compaction and backfill material of varied depth up to ground level, all in accordance with road department highways maintenance section requirements.
- Trench marker tape with aluminum strip in the middle shall be laid at minimum 300 mm depth below ground level along route of pipe. Marker tape should be detectable warning tape of 150mm wide, 250 microns thickness to detect the pipe through metal detector.
Service Connection Tapping
- Tapping with gunmetal saddle strap size from 20MM to 63MM,
INFRASTRUCTURE
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Construct trading contracting & services is fully geared to under facilities management & MEP services for industrial & commercial buildings, hospitals, power stations & industries.
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