Patent · US Expired

Method of, and apparatus for, driving and lining tunnels

US4147453A · kind A · utility

10Cited by

3References

25Claims

0Family size

Assignee

Gewerkschaft Eisenhutte Westfalia GmbH · DE

Inventors

Eberhart Unger · Grafenau, DE
Hans Jutte
Dieter Stuckmann · Selm, DE

Key dates

Filing date	Feb 15, 1978
Grant date	Apr 3, 1979
Priority date	—
Expiry date	Feb 15, 1998

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21D9/0607
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Apparatus for driving and lining tunnels utilizes a knife shield for driving a tunnel and shuttering for forming a concrete lining behind the knife shield. The shuttering is constituted by a plurality of shuttering elements, each of which is connected to, and inwardly off-set from, a respective knife. The shuttering elements are, therefore, advanced together with their knives and concrete is forced into the space between a shuttering element and the tunnel wall as that element is advanced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.