Title:
LINING DEVICE FOR TUNNEL
Document Type and Number:
Japanese Patent JP3210899
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a lining device for a tunnel capable of completing the stirring and mixing of a lining material in a short time and smoothly transferring it to a rotary projecting part by improving a spraying method by a conventional air force-feed system and a conventional rotary projection system, obtaining the optimum kneaded condition by regulating the stirring and mixing time to a desired value, and preventing clogging troubles since the lining material is not stored or solidified in a stirring and mixing means.
SOLUTION: A rotary shaft 8 and a stirring rod 9 are provided in a stirring and mixing chamber 4 formed of a truncated-conical cylinder 5, the truncated- conical cylinder 5 is rotated at a relatively low speed while the rotary shaft 8 and the stirring rod 9 are rotated at a relatively high speed in the same direction to stir and mix a lining material (a) introduced in the truncated-conical cylinder 5 with the set accelerating agent (b). The kneaded spray lining material (c) is successively transferred and discharged to a rotary projecting part 1C, and rotary-projected against an excavated wall surface of the tunnel through the rotary projecting part 1C.
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Inventors:
Masataka Uozumi
Tatsuo Ito
Yuji Nagano
Sakae Nakai
Takao Masuzaki
Tatsuo Ito
Yuji Nagano
Sakae Nakai
Takao Masuzaki
Application Number:
JP9475198A
Publication Date:
September 25, 2001
Filing Date:
April 07, 1998
Export Citation:
Assignee:
Mitsui Construction Co., Ltd.
International Classes:
E21D11/10; (IPC1-7): E21D11/10
Attorney, Agent or Firm:
Youichi Ohshima