Global Patent Index - EP 0979346 A1

EP 0979346 A1 2000-02-16 - METHOD FOR BUILDING A TUNNEL UNDER AN EXISTING CONSTRUCTION

Title (en)

METHOD FOR BUILDING A TUNNEL UNDER AN EXISTING CONSTRUCTION

Title (de)

VERFAHREN ZUM HERSTELLEN EINES TUNNELBAUWERKS UNTER EINEM BESTEHENDEN BAUWERK

Title (fr)

PROCEDE DE CONSTRUCTION D'UN OUVRAGE POUR TUNNEL SOUS UN OUVRAGE EXISTANT

Publication

EP 0979346 A1 (DE)

Application

EP 98932015 A

Priority

  • DE 9801171 W
  • DE 19718221 A

Abstract (en)

[origin: DE19725089A1] The method involves forcing tunnel structure (5) through under an existing construction using stabilising plates (10) to support the construction. The plates (10) are inserted into the ground and connected together before the tunnel structure is installed. The plates are joined together and are reinforced by beams. A cutter arrangement (9) in front of the tunnel structure and parallel to the direction in which it is driven removes the earth for the structure to be driven through. Preferably, the stabilising plates are of steel and cover a larger area of ground than the tunnel structure when installed and are provided at the expected level of the upper edge of the tunnel structure. The plates may be welded together and the reinforcement is preferably of steel beams.

IPC 1-7 (main, further and additional classification)

E21D 9/00

IPC 8 full level (invention and additional information)

E21D 9/00 (2006.01)

CPC (invention and additional information)

E21D 9/005 (2013.01)

Citation (search report)

See references of WO 9849425A1

Designated contracting state (EPC)

AT BE DE ES FR GB GR IE IT NL SE

EPO simple patent family

DE 19725089 A1 19981105; AT 200137 T 20010415; EP 0979346 A1 20000216; EP 0979346 B1 20010328; PL 333502 A1 19991220; WO 9849425 A1 19981105

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