隧道技术
Cuttable Solutions
Cuttable support is mostly used in the longitudinal direction of the tunnel (portal, face) when temporary stabilization is required before moving to the next phase.
Also, Mechanized Tunneling is becoming standard in urban areas, especially for underground metro projects. This modern technique is calling for new kinds of systems, in particular, cuttable reinforcement bars for concrete structures (like Soft-Eye in D-walls) and cuttable ground anchors.
Radial & Lateral Support (Roof & Wall)
通过钻爆法或传统采矿方式建造隧道时，需要支撑屋顶和墙壁。
Rock bolt is the first type of support installed before any other kind of mesh or lining is applied. Depending on the construction sequence and technology, both temporary and permanent bolts can be offered.
Soft-Eye and Rock Bolt
可切割玻璃纤维增强聚合物 (GFRP) 加固
加快施工进度
无需拆除设备
安全可靠的设计
为什么使用 Dextra 隧道解决方案？
不带软眼
为了创建隧道开口，必须在入口/出口处拆除加固 D 墙的混凝土和钢结构。这项任务非常繁琐，需要调动额外的重型设备。损坏隧道掘进机 (TBM) 的风险也很高。在潮湿的土壤环境中，在 TBM 到达之前打开 D-Wall 可能会导致并发症。
带软眼
隧道掘进机 (TBM) 通过切割 FRP 钢筋并压碎混凝土，轻松突破车站的 D 墙。 Soft-Eye 的设计可以精确控制误差范围。这种方法是创建隧道开口最快、最简单且最安全的方法。