Method and related devices for carrying out TBM excavation and expansion blasting using a blast protector and a cart
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 14, 2017
Grant Date -
Oct 10, 2013
app pub date -
Sep 29, 2011
filing date -
Dec 21, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a method and related devices for carrying out TBM excavation and expansion blasting, which uses a blast protector and a cart to expand a pilot tunnel by blasting after the pilot tunnel has been formed; and which specifically includes: a step of forming a pilot tunnel; a step of forming a horizontal or vertical blast hole; a step of installing a blast protector within the pilot tunnel; a step of blasting the upper and lower halves of the pilot tunnel to expand the upper and lower halves; and a step of removing the debris formed during the blasting of the upper and lower halves, by dumping the debris into a cart. Accordingly, the rail and cable are protected from the debris formed during the blasting, and working efficiency is improved.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully