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2 075 574

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C1

(51)

IPC

(21) (22)

Application

96107380/03, 1996-04-22

(22)

Actual filing date

1996-04-22

(45)

Published

1997-03-20

(72)

Inventor

Drozdov M.A.Mosesov S.K.Muretov A.N.

(73)

Holder

Aktsionernoe Obshchestvo Zakrytogo Tipa

METHOD FOR TRENCHLESS LAYING OF PIPELINES AND DIRECTED DRILLING MACHINE Russian patent published in 1997 - IPC

Abstract RU 2075574 C1

FIELD: construction engineering. SUBSTANCE: pipeline is laid under various natural obstacles by means of standard drill string which in course of drilling is being extended. Axial thrust in bottom face is created by applying the power unit force of machine to end face of drill lock of string section which is being forced into earth. Directed drilling machine is provided with hydraulic power cylinders to produce required thrust for transmission to drilling unit. EFFECT: higher efficiency. 4 cl, 3 dwg

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RU 2 075 574 C1

Authors

Drozdov M.A.

Mosesov S.K.

Muretov A.N.

Dates

1997-03-20—Published

1996-04-22—Filed

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