FIELD: oil-and-gas industry.
SUBSTANCE: proposed method comprises digging the access trench for shaft consisting of top and bottom parts. Shaft is mounted at pipeline by welding its top and bottom parts to pipeline and joints are sealed. Equipment is mounted inside said shaft to be closed tightly by the cover equipped with lock and means to prevent sparking at erection and dismantling. Said trench is filled with easy-to-excavate soil to be coated with the main soil to conceal the shaft.
EFFECT: efficient concealment of the shaft.
4 cl, 5 dwg
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