Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
WIRE-NETTING TIMBERING UNIT
Document Type and Number:
Japanese Patent JPH06193396
Kind Code:
A
Abstract:

PURPOSE: To construct the timbering of a tunnel without requiring a labor hour and the time by laying a wire-netting timbering unit by a laying device through an engaging fitting and repeating excavation and the laying of the wire-netting timbering unit.

CONSTITUTION: Engaging fittings 49 are installed to long-side side fittings 22, 30 on the periphery of a wire netting 16 formed in a belt shape while boltholes 52, 53 are formed to the long-side side fittings 22, 30 along the longitudinal direction of the wire netting 16. When a timbering is constructed, a wire-netting timbering unit 15 is engaged and borne in a shape along the surface of a bedrock through the engaging fittings 49 by a laying device after one-time execution is completed, and lock bolts 57 are placed on the bedrock in a shape that boltholes 52, 53 for fixing are penetrated, and the wire-netting timbering unit 15 is laid. The novel unit 15 is built by conducting one-time excavation again after the laying, and the process is repeated, thus constructing the timbering of a tunnel.


Inventors:
SAKAIRI OSAMU
Application Number:
JP35759292A
Publication Date:
July 12, 1994
Filing Date:
December 24, 1992
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUI CONSTR
International Classes:
E21D11/14; E21D19/00; (IPC1-7): E21D11/14; E21D19/00
Attorney, Agent or Firm:
Shinji Aida (1 outside)