发明名称 Support unit for use in a shaft or hollow vertical chamber, comprises flexible sleeve and spreading unit which can open the sleeve out
摘要 An arrangement for producing a support in shafts or hollow vertical chambers, allowing a material to be filled into the shaft, comprises a flexible sleeve (14) and a spreading unit (12,13) which can open the sleeve out. A mineral foam can be filled into the flexible sleeve, which hardens. The foam forms a stable cushion against the shaft wall.
申请公布号 DE19921363(A1) 申请公布日期 2000.11.23
申请号 DE19991021363 申请日期 1999.05.10
申请人 RAG AG;DEUTSCHE MONTAN TECHNOLOGIE GMBH;WILLICH FOSROC GMBH 发明人 TECKLENBURG, HEIKO;MITTRACH, JOERG MICHAEL;FLUECHTER, UDO HEINRICH;BENNING, HEINZ-JOERG;PEIKER, JENS
分类号 E21D5/12;E21D7/00;E21F17/107;(IPC1-7):E21D7/00;B09B1/00;E21D11/04;E21F17/103;E21F17/16;G21F9/24 主分类号 E21D5/12
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