METHOD FOR UNDERGROUND PLACING PIPELINE ON UNSTABLE SOILS Russian patent published in 1995 - IPC

Abstract SU 1551008 A1

FIELD: pipeline breaking. SUBSTANCE: method lies in suspension pipeline on flexible tie-rods of design length secured on crosswise supports located through predetermined steps along the length of transition areas. Warming up frozen ground and sagging that at section 3 occurs in the process of pipeline 1 operation, that is placed in trench 7. In so doing pipeline 1 moves in position B from position A, and flexible tie-rods 6 form profile 10 of its elastic allowable bend limiting vertical motion. EFFECT: decreased amount of man-power. 2 dwg

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SU 1 551 008 A1

Authors

Sokolov S.M.

Laptev A.A.

Kuznetsov S.F.

Skvortsov I.D.

Karavaev S.S.

Dates

1995-09-20Published

1988-04-04Filed