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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