Azerbaijan
| Participants | |
|---|---|
| Owner | Socar, (State Oil Company of Azerbaijan Republic) |
| Contractor | Mikro Tunel Tikinti MMC /Tunel Tikinti Servis (MTT / TTS) as subcontractor for AZFEN SAIPEM JOINTVENTURE |
| Location of the Job Site | Between 100 km and 450 km outside from Baku, Azerbaijan |
| Tender | |
| Short Description of Job | Crossings for South Caucasus Pipeline Expansion Project 100 crossings with length up to 95 m; Ø 1200 mm |
| Specifications for Tenders | Drilling with coated steel pipes Ø 1220 mm with wall thickness 16 mm / 20 mm / 24 mm and coating thickness 3-5 mm Single pipe length 12 m, joints fully welded Maximum deviation acceptable on vertical & horizontal is 1% out of crossing’s length. |
| Alternative Methods proposed by the Constructor | Guided Auger boring with pilot tube method and active intermediate extension |
| Ground conditions | |
| Described Ground in the Ground Report | Medium to high compacted clay |
| Encountered Soils | Medium to high compacted clay, high groundwater level |
| Depth of Coverage | Varies between 3-6 m underneath the motorways |
| Accuracy | ± 25 mm |
| Time for Job or Production Rate | Production rates: average boring speed is 12 m/hour plus welding time |
| Driving Length | 35 to 95 m |
| Any other Specifics | Guided auger boring with pilot tube method and active intermediate extension |
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