METHOD FOR ANCHOR INSTALLING Russian patent published in 1996 - IPC

FIELD: mining. SUBSTANCE: tube is used to install tightening rod in a well. The well is filled with friable material through this tube. On withdrawal the tube tightening rod is passed through support slab to be tightened and secured. The rod end is twisted and flattened. The well is filled layer by layer followed by compacting the layers by the end of movable tube. EFFECT: simplification in constructing process is achieved by the method proposed at the expense of coincided operations, simplicity in installation without special additional means, time reduction when anchor bringing to loads with increased bearing capacity. 7 cl, 6 dwg