FIELD: laying pipe lines in ground. SUBSTANCE: pipes from working foundation pit are forced into receiving pit increasing them in succession and admitting soil into forward pipes which are separated from end pipes by flange. Soil is removed from forward pipes as they enter the receiving pit. Forcing the pipes into pit is effected by means of power, striking or pulling mechanism or by combination of them. EFFECT: enhanced reliability. 10 cl, 6 dwg
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