Apparatus and method for shield-type tunneling

E - Fixed Constructions – 21 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

262/51

E21D 9/08 (2006.01) E21D 9/13 (2006.01) E21D 9/06 (2006.01)

Patent

CA 1173465

ABSTRACT: SHIELD TUNNELING METHOD AND MACHINE THEREFOR A method for excavating a tunnel wherein the muck from the tunnel face is admitted into the shield; the muck is pressed by a pressure of a predetermined level higher than an active earth pressure in the face and lower than a passive earth pressure as the shield body is moved forward, thereby establishing the balance between the earth pressure in the face ground and the muck pressure; and a liquid of a level balancing the underground water pressure is used to resist the underground water, thereby preventing movement of the underground water, whereby the face is maintained stable; and when the muck pressure is raised over the predetermined level, the muck is discharged out of the shield. A shield tunneling machine embodying the above described method comprises a cutter head (24,1241 allowing the passing of the muck there- through, a diaphragm (14,114) provided in the shield body (10,110), a muck inlet (16,116) provided in the diaphragm, a cover member (50,148,149) adapted to open and close the muck inlet and coupled to an operating means (52,160) presetting the muck pressure at the aforesaid predeter- mined level, and a muck chamber provided behind the diaphragm and usually charged with a liquid.

379928

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus and method for shield-type tunneling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for shield-type tunneling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for shield-type tunneling will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1231997

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.