公开(公告)号：US4107930A

公开(公告)日：1978-08-22

申请号：US720096

申请日：1976-09-02

申请人： Theodor Thiehofe

发明人： Theodor Thiehofe

IPC分类号： E21D1/06 ,  E21D1/08

CPC分类号： E21D1/08 ,  E21D1/06

摘要： A method of sinking a shaft, particularly in unstable ground, comprises driving an annular shield into the ground and controlling the sinking speed of the driving shield by varying the cross-sectional area of the shield, and lining the excavated shaft behind the shield as it is advanced. An excavating device for forming the vertical shaft comprises an annular driving shield which is displaceable relative to an annular platform by fluid pressure operated piston and cylinder jacks connected therebetween. The structure includes an annular shield tail which is connected to the shield and extends rearwardly of the shield and the platform and the shield itself is provided with an inwardly directed taper and has prop means associated therewith for varying the affective taper and the affective cross-sectional area of the shield. The excavated shaft is lined behind the shield and the tail portion thereof as the shield is advanced. An annular machine platform is braced against the lining by telescopically movable braces which are fluid pressure driven to engage against the lining.

摘要翻译： 一种沉没轴的方法，特别是在不稳定的地面中，包括将环形屏蔽件驱动到地面中并通过改变屏蔽件的横截面面积来控制驱动屏蔽件的下沉速度，并且将其作为衬套 是先进的 用于形成垂直轴的挖掘装置包括环形驱动屏蔽件，其通过连接在其间的流体压力操作的活塞和气缸千斤顶相对于环形平台移动。 该结构包括环形屏蔽尾部，其连接到屏蔽并从屏蔽件向后延伸并且平台并且屏蔽件本身设置有向内指向的锥形并具有与其相关联的支撑装置，用于改变情感锥度和情感横截面 屏蔽区域。 当护罩前进时，挖掘的轴被排列在护罩后面和尾部。 环形机器平台通过可伸缩移动的支架支撑在衬里上，该支架被流体压力驱动以与衬里接合。