发明名称 Method of monitoring rock pressure and test arrangement for carrying out the method
摘要 Working points in coal mining which are in danger of rock burst require constant monitoring. First the rotatability of a tube inserted into a drill hole and subsequently the cross-section or the passage of the deformed tube are determined via sounding rods. To this end, test bores for the accumulation of drill cuttings are made parallel to the drill-hole sounding while avoiding bench tests.
申请公布号 DE3128940(A1) 申请公布日期 1983.02.10
申请号 DE19813128940 申请日期 1981.07.22
申请人 BERGWERKSVERBAND GMBH 发明人 BRAEUNER,GERHARD,DR.-ING.
分类号 E21C39/00;E21F17/18;(IPC1-7):E21F17/00 主分类号 E21C39/00
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