地下通道建在地表或水下,称为隧道。 这是一项重要的土木工程,在世界各地得到广泛应用。 它被用于运河、铁路甚至公路。

在全世界,隧道建设已经创造了许多技术。 钻孔隧道,或使用隧道钻探机,就是这类隧道建筑的一种。

隧道掘进机是一种主要用于隧道开挖的设备,其截面呈圆形,能掘进从砂岩到硬岩的任何东西。

使用两种最常见的隧道掘进机。

现代钻孔机包括隧道钻孔机。 微隧道是它的另一个应用。

此外,它还可以用于挖掘方形、矩形、马蹄形和非圆形隧道以及U形和矩形隧道。

挖隧道直径可达1米,可挖1至17.6米。

隧道掘进机可以代替传统的隧道建筑钻孔爆破方法。

该设备的设计是为了保证挖出的隧道有平滑的墙体,并且周围的土层受到最小程度的干扰。 因此,隧道衬砌的成本可以显著降低。

对于人口稠密地区,隧道掘进机是理想的隧道建造技术。

隧道掘进机能够自主开挖隧道,使整个隧道施工过程大大简化。

硬岩隧道掘进机

硬岩隧道掘进机顾名思义,用于在硬岩中施工隧道。

为了挖出岩石,他们得到安装在刀头上的圆盘切割器。

这类隧道掘进机通常包括屏蔽式和开放式两种掘进机组成。

这些TBM的内置圆盘切割机意在岩石中产生压缩应力裂缝,从而导致岩石从隧道表面剥离。

一旦挖掘工作完成,清除的岩石或淤泥将通过刀头上的孔口运送到带式输送机,以便从隧道中清除。

在开式硬岩TBM中不存在盾构,刀头后的空间可以自由地支撑岩石。

隧道掘进机采用一种夹持机构,通过推压隧道壁来推进机器。 然后,TBM将获得推进力通过推开夹具在那一点。

机器的后腿随后被降低,这导致推进气缸和夹具收缩。 因此,这种收缩的推进气缸确保夹具总成将重新安排在下一个镗削周期。

盾构型硬质岩石TBM可用于裂缝性岩石。

为了支撑盾构式硬岩隧道掘进机后面的晃动隧道,架设了混凝土段。

地面稳定时可使用双屏蔽TBM。

双盾构隧道掘进机有两种抓取隧道壁的方法,可以向前推进。

单盾构型隧道掘进机是专门用于裂缝性岩石的,在操作上与双盾构型隧道掘进机类似。

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