Rock bolt anchored by explosive forming

Claim 1

A ROCK BOLT COMPRISING A THREADED ROD AND AN ANCHORING MEANS FOR SECURING THE BOLT IN AN OPENING THROUGH STRATIFIED GROUND, SAID ANCHORING MEANS COMPRISING AN ELONGATED HOLLOW CASING HAVING INDIVIDUAL OPENINGS AT ITS OPPOSITE ENDS, MEANS ATTACHING SAID CASING TO THE ROD, MEANS IN SAID CASING SEALING THE SAID OPENINGS THEREIN COMPRISING INDIVIDUAL GASKET ELEMENTS DISPOSED CONTIGUOUS TO AN END SURFACE OF SAID ROD WITHIN ONE END OPENING OF SAID CASING, AND ADJACENT THE OTHER END OPENING OF SAID CASING, RESPECTIVELY, AN ELONGATED HOLLOW CONTAINER EXTENDING WITHIN SAID CASING ALONG APPROXIAMATELY THE LENGTH BETWEEN ITS OPPOSITE ENDS AND SUPPORTED WITHIN THE CASING AND OUT OF CONTACT THEREWITH TO PROVIDE A SPACE BETWEEN THE CONTAINER AND CASING, ONE END OF SAID CONTAINER BEING IN CONTACT WITH SAID CONTIGUOUS GASKET ELEMENT, EXPLOSIVE MEANS SELECTIVELY ARRANGED IN SAID CONTAINER, A SUBSTANTIALLY INCOMPRESSIBLE, FLUID MASS FILLING SAID SPACE, AND A MEANS ATTACHED TO SAID CONTAINER TO DETONATE THE EXPLOSIVE MEANS WHEREBY A SHOCK WAVE PRODUCED BY SAID EXPLOSION IS TRANSMITTED THROUGH SAID FLUID MASS TO EXPAND THE HOLLOW CASING INTO CONTACT WITH THE STRATIFIED GROUND.