Method of excavating rock caverns by blasting

Details Method of excavating rock caverns by blasting Method of excavating rock caverns by blasting

1984-03-21

1986-07-22

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Processes

Explosive

405259, E21C 4100

Patent

active

046015183

ABSTRACT:
The method produces an elongated rock cavern tunnel, or shaft, preferably with a large cross-sectional area. At least one drilling drift is first driven in the longitudinal direction of the cavern. From that drilling drift first drill holes are drilled in successive planes extending transversely to the longitudinal axis of the intended cavern. Charging and blasting is carried out in the first drill holes for excavating the cavern layer by layer.
The first drill holes are drilled in an essentially ring or fan-shaped pattern and partially outside the intended contour of the cavern. Rock strengthening means is inserted beyond the contour in the drill holes prior to blasting so that the cavern walls and roof have such a degree of stability that work for reinforcing the walls and roof subsequent to blasting can be carried out within the cavern, or that the cavern can be used for its intended purpose, for example for storing liquids, without any further reinforcement following the removal of the blasted rock.

REFERENCES:
patent: 3509726 (1970-05-01), White
patent: 3917348 (1975-11-01), Janssen

Affiliated with

Also associated with

Rating

Method of excavating rock caverns by blasting does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of excavating rock caverns by blasting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of excavating rock caverns by blasting will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-861984