FIELD: construction, mainly at pipe laying. SUBSTANCE: anchoring device uses anchoring rods and expansion pieces attached to the rod ends. The expansion piece is made in the form of a casing accommodating a spring with a thrust plate. Prior to installation in the casings, the springs are prestressed by a force of not less than the buoyancy force of the water- deposited soil under the pipeline. EFFECT: enhanced reliability. 14 cl, 11 dwg
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SU1477847A1 |
