Method and apparatus for advancing cylindrical bodies undergroun

Details Method and apparatus for advancing cylindrical bodies undergroun Method and apparatus for advancing cylindrical bodies undergroun

1981-09-01

1983-06-14

Taylor, Dennis L.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Boring

405184, E01G 514

Patent

active

043880207

ABSTRACT:
A method and an apparatus for advancing cylindrical bodies. More than two underground cylindrical bodies are laid in longitudinal alignment with thrusting jacks disposed between them. A connecting member is arranged to pierce through them. A fastener is attached to one end of the connecting member while an advancing jack arrangement which has a removable-and-attachable fastener is attached to the other end of the connecting member. A suitable anchor body is disposed in front of the alignment of cylindrical bodies. Between the anchor body and each of the cylindrical bodies, there is provided a fixing member which pierces through them. Removable-and-attachable fasteners are disposed between the fixing member and the cylindrical bodies to interlink them for moving them forward underground one after another.

REFERENCES:
patent: 2074003 (1937-03-01), Templeton et al.
patent: 3708984 (1973-01-01), Coleman

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