<p>An adjustable yield rock bolt that comprises an elongated tensile support member that interacts with at least one gouging member and a receiving member capable of receiving the elongated tensile support member and hold the gouging member segment there between, wherein the elongated tensile support member extends beyond the receiving member a length that corresponds to a predetermined amount of yield before ultimate failure. The bolt has adjustability by allowing for controlled yield by gouging of the elongated tensile support member for any length of displacement.</p>
申请公布号
EP1819903(A1)
申请公布日期
2007.08.22
申请号
EP20050794962
申请日期
2005.09.20
申请人
ATLAS COPCO MAI GMBH
发明人
SPEARING, ANTHONY, JOHN, SPENCER;JINGLE, JOSEPH, JOHN, JR.