SHIELD TUNNELING MACHINE,申请号EP19850112007-传众专利搜索

SHIELD TUNNELING MACHINE

申请公布号：EP0185857(B1)

申请号：EP19850112007

申请日期：1985.09.23

申请公布日期：1988.08.03

申请人：

KABUSHIKI KAISHA ISEKI KAIHATSU KOKI

发明人：AKESAKA, TOSHIO;SUZUKI, KENJU;SUMI, TOSHIO

分类号：E21D9/06;E21D9/08;E21D9/087;(IPC1-7):E21D9/08

主分类号：E21D9/06

摘要：<p>A shield tunneling machine comprises a tubular shield body, a partition wall provided in the shield body, a rotary shaft supported rotatably by the partition wall and extending longitudinally of the shield body, a cutter head disposed on the front end of the rotary shaft and a mechanism for rotating the cutter head through the rotary shaft. The cutter head comprises a first cutter provided with a plurality of cutter bits and a second cutter provided with a plurality of roller bits. The machine also comprises a mechanism for moving straight forward and backward one of the first and second cutters relative to the other. The machine locates the first cutter more forward than the second cutter for excavating the face of stratum having a soft layer like clay layer with the first cutter and the second cutter more forward than the first cutter for excavating the face of the stratum having a hard layer like bedrock layer with the second cutter.</p>