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Patent Searching and Data


Title:
EARTH AND SAND CARRIER DEVICE FOR EXCAVATED SOIL SEAL TYPE SHIELD DRIVING MACHINE
Document Type and Number:
Japanese Patent JPH07269294
Kind Code:
A
Abstract:

PURPOSE: To separate large-sized cobble stone in the earth and sand excavated with a cutter head from the earth and carry the earth and sand with an earth and sand booster pump and the large-sized cobble stone by way of a different route.

CONSTITUTION: In terms of an earth and sand carrier device of an excavated soil sealing type semi-shield driving machine, which carries backward the earth and sand excavated with a cutter head 2 installed to the front of a shield main body 1 and taken in a chamber 1a by means of an earth and sand booster pump 20, a large-sized cobble stone separation means 14, which is designed to separate large-sized cobble stone mixed in the excavated earth and sand, is installed to the rear part of an earth removing pipe 10 which removes the earth and sand in the chamber 1a. A hopper is installed, which is designed to send the earth and sand separated by the large-sized cobble stone separation means 14 to the earth and sand booster pump 20. The earth and sand separated by the large-sized cobble stone separation means 14 is carried by the earth and sand booster pump 20 while the large-sized cobble stone is carried by a different route, which makes it possible to reduce the size of the earth and sand booster pump 20. It is, therefore, possible to secure a space with ease in case when a semi-shield machine is adopted.


Inventors:
MINAMI TAKASHI
OSADA SEIJI
YAMAZAKI TOSHIHIRO
MIZUTANI TOSHIYUKI
Application Number:
JP1994000083583
Publication Date:
October 17, 1995
Filing Date:
March 31, 1994
Export Citation:
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Assignee:
KOMATSU MFG CO LTD
International Classes:
E21D9/12; (IPC1-7): E21D9/12
Attorney, Agent or Firm:
松澤 統 (外1名)