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

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