发明名称 Jetgraafinrichting.
摘要 The excavating device has an assembly of jet excavating units (2) defining a cross section of the channel. A sensor (4) is connected to at least one unit for measuring a force which is exerted on the unit by the ground parallel to the excavating direction. A control unit controls the excavation on the basis of the force measured by the sensor.
申请公布号 NL1016952(A1) 申请公布日期 2001.02.26
申请号 NL20001016952 申请日期 2000.12.21
申请人 HEEREMA HOLDING CONSTRUCTION INC. 发明人 ROGIER CRISTIAN KOENE;ROKUS VAN DEN BOUT;FRITS-JAN KOPPERT;CORNELIS VAN ZANDWIJK
分类号 E02F3/92;E21B7/00;E21B7/18;E21C25/60;E21D9/04;E21D9/10;E21D9/13 主分类号 E02F3/92
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