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公开(公告)号:US4718504A
公开(公告)日:1988-01-12
申请号:US837202
申请日:1986-03-10
摘要: A trench excavator capable of excavating a trench of a rectangular section suitable for formation of an underground diaphragm wall. The underground diaphragm walls are now applied as underground structures replacing caissons, rigid foundations for multistory or tower like buildings, underground tanks and the like. In the trench excavator according to the invention, a pair of drum cutters and a ring cutter interposed therebetween form one unit and a plurality of such units are arranged parallel to one another, whereby an unexcavated portion produced between the drum cutters can be cut out by the ring cutter, leaving no unexcavated portion.
摘要翻译: 一种能够挖掘适合形成地下隔膜壁的矩形截面的沟槽的挖沟机。 地下隔膜墙现在被用作地下结构,代替沉箱,多层或塔式建筑,地下储罐等的刚性基础。 在根据本发明的沟槽式挖掘机中,一对滚筒切割器和夹在其间的环形切割器形成一个单元,并且多个这样的单元彼此平行地布置,由此在滚筒切割器之间产生的无切割部分可以被切割出 环形切割机,没有没有空隙的部分。