Patent · US Expired

Rock anchor arrangement

US4576524A · kind A · utility

6Cited by

4References

7Claims

0Family size

Assignee

Bochumer Eisenhütte Heintzmann GmbH & Co. KG · DE

Inventors

Peter Heintzmann · Bochum, DE
Manfred Koppers · Sörup, DE
Karlheinz Bohnes · Bochum, DE
Gerhard Hecken · Bochum, DE

Key dates

Filing date	Apr 11, 1984
Grant date	Mar 18, 1986
Priority date	—
Expiry date	Apr 11, 2004

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16B2013/148
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A rock anchoring arrangement for use in tunnel and mine constructions comprises an elongated anchoring rod insertable in a bore formed in a rock formation, and a supporting plate arranged in contact with the rock formation at the open end of the bore. The anchoring rod includes a leading end portion fixable at the bottom of the bore, a trailing end portion fixable at the open end of the bore, and a smooth intermediate portion of a cross-sectional area smaller than those of the trailing end portion and the leading end portion. The anchoring rod is fixable by an adhesive within the bore at the leading end portion and at the trailing end portion whereas the intermediate portion is surrounded by an adhesive-repellent material to prevent the sticking thereof to the adhesive.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.