Apparatus for anchoring rock and the like

Details Apparatus for anchoring rock and the like Apparatus for anchoring rock and the like

1986-01-27

1986-12-23

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Chemical

405259, 411 69, E21D 2000

Patent

active

046309713

ABSTRACT:
An anchoring apparatus for insertion into a borehole in a rock stratum for supporting the rock surface or wall, such as in a rock tunnel or rock excavation, includes a tension member in the form of an axially elongated steel rod with force transmission ribs on its outer surface and an anchoring element, such an anchoring nut, engageable with the rod. The anchoring element has an inside surface with inwardly extending projections and the adjacent flanks on the projections form grooves within which the force transmission ribs engage. The anchoring element is formed of a higher strength material than the rod. When a predetermined axially extending tension force acting on the rod is exceeded, relative movement takes place between the anchoring element and the rod. The flanks on the projections on the anchoring element in contact with the ribs on the rod shear off a portion of the ribs contacted. Accordingly, while the predetermined force is exceeded, the shearing action proceeds and affords a sliding anchoring effect between the rod and the anchoring element.

REFERENCES:
patent: 983442 (1911-02-01), Haywood
patent: 1099668 (1914-06-01), Rosenberg
patent: 1229287 (1917-06-01), Kennedy
patent: 4112637 (1978-09-01), Herbst
patent: 4415294 (1983-11-01), Ringe
patent: 4560305 (1985-12-01), Powondra

Affiliated with

Also associated with

Rating

Apparatus for anchoring rock and the like 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 for anchoring rock and the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for anchoring rock and the like will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-169530