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2. 发明授权

US5051033A Bracing device for a self-advancing shield tunnelling machine 失效
标题翻译：自推进盾构隧道机的支撑装置
公开(公告)号：US5051033A
公开(公告)日：1991-09-24
申请号：US567637
申请日：1990-08-15
申请人： Heinrich Grotenhofer
发明人： Heinrich Grotenhofer
IPC分类号： E21D9/06 , E21D9/08 , E21D9/087 , E21D9/10
CPC分类号： E21D9/1093 , E21D9/087
摘要： A bracing device for a self-advancing shield tunnelling machine for tunnel construction comprising a control shield within which is mounted a cutting unit, and at least two bracing shields each having a closed circumferential wall construction which are connected together by feed cylinders, the bracing shields being able to be radially braced with the tunnel wall independently of each other by bracing elements fixed thereon. The bracing elements are composed of elastic pressure hoses positioned around the closed circumferential bracing shield walls. The circumferences of the bracing elements can be continually enlarged by expansion, particularly by inflation. The invention furthermore relates to the use of such bracing elements for a self-advancing shield tunnelling machine in which the control shield and the first bracing shield arranged behind it as well as the first and second bracing shield engage in each other and overlap telescopically. The first bracing shield is connected at a first end thereof to the control shield and, at a second end thereof, to the second bracing shield via independently actuatable piston and cylinder units.
摘要翻译：一种用于隧道施工的自推进盾构隧道掘进机的支撑装置，包括控制屏蔽件，其中安装有切割单元，以及至少两个支撑屏蔽，每个支撑屏蔽具有封闭的周向壁结构，所述封闭圆周壁结构通过进料圆筒连接在一起，支撑屏蔽能够通过固定在其上的支撑元件彼此独立地通过隧道壁径向地支撑。支撑元件由围绕封闭的周向支撑屏蔽壁定位的弹性压力软管组成。支撑元素的周长可以通过扩张而不断扩大，特别是通过通货膨胀。本发明还涉及这种支撑元件用于自行进的屏蔽隧道机，其中控制屏蔽和布置在其后面的第一支撑屏蔽以及第一和第二支撑屏蔽彼此接合并且可伸缩地重叠。第一支撑屏蔽件在其第一端处连接到控制屏蔽件，并且在其第二端处经由独立可致动的活塞和气缸单元连接到第二支撑屏蔽件。

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