Abstract

In a method for lining tunnel walls or ceilings with protective nets or the like, web-shaped protective net material is unwound from a reel and is fastened to the tunnel walls or ceiling by tie bolts. The reel is rotatably arranged. The rotation of the reel about a shaft is controlled in order to unwind the protective net material, the shaft being mechanically moved in steps along the tunnel walls or ceiling together with the reel. The protective net material unwound in each step is preferably stretched and mechanically fastened. The individuals carrying out these processes are thus not exposed to any direct risk, while the lining process can be accelerated.

IPC Classes  ?

• E21D 19/00 - Provisional protective covers for working space

Abstract

In a method for lining tunnel walls or ceilings with protective nets or the like, web-shaped protective net material (8) is unwound from a reel (7) and is fastened to the tunnel walls or ceiling by means of tie bolts. The reel (7) is rotatably arranged. The rotation of the reel (7) about a shaft (30) is controlled in order to unwind the protective net material (8), the shaft (30) being mechanically moved in steps along the tunnel walls or ceiling together with the reel (7). The protective net material (8) unwound in each step is preferably stretched and mechanically fastened. The individuals carrying out said processes are thus not exposed to any direct risk, while the lining process can be accelerated.

IPC Classes  ?

• E21D 11/15 - Plate liningsLaggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
• E21D 11/38 - WaterproofingHeat insulatingSoundproofingElectric insulating
• E21D 19/04 - Provisional protective covers for working space for use in drifting galleries