DE202005008099U1 - Tunnel lining and reinforcing construction, comprises concrete injection and compaction tube, length direction reinforcing bars and cross direction brackets - Google Patents

Abstract

Reinforcing bars (2) and a tube (1) for injecting and compacting concrete are supported by a steel plate (3). One of the reinforcing bars (6) is movable in its length direction and secured to cross-direction brackets (5) for securing to the length direction reinforcing bars.

Description

pipe and reinforcement for filling of slots in the tunnel and special civil engineering.

Of the Shoring to temporary Burglar protection in tunneling is usually with reinforcing steel mesh, steel arches and shotcrete produced.

This Shoring occurs immediately after the outbreak. The breakout depth is depending on the mountain stand strength.

Of the in claim 1 protection invention is based on the problem to create a reinforcement which makes it possible to compact in a slot To produce reinforced concrete. Through the combination of reinforcement and Pipe with a movable inner pipe, the concrete can be professionally, immediately after the slot is open a bit, bring.

Of the milled Slot in the dome area at the face has the advantage that in loose rock the protective Reinforced concrete vault is made prematurely before the outbreak of the dome takes place.

This Problem is solved with the features mentioned in the protection claim 1.

With The invention is achieved in that in a, with a large chain saw milled slot Reinforced concrete vault will be produced. The slot is over the entire dome area, Milled in sawtooth. To the outbreak area as small as possible to keep, is milled, reinforced, concreted and compacted in the shortest possible intervals. If the slot is 30 cm to 40 cm wide, the next item may be be pushed and fixed. The inner pipe becomes concrete pumped in and compacted. This prevents a large, free-floating breakout area. The overhanging material from the vaulted area can not break.

A advantageous embodiment of the invention is in the protection claim 2 given.

The Training for protection claim 2 for the application for production of reinforced concrete in the slot allows the attachment of the element by welding, the production of the transverse reinforcement by that pull on the handle, the introduction of concrete through the inner tube and the compaction of the concrete with a vibrator bottle in the pipe.

An embodiment of the invention is based on the 1 to 15 explained, show it:

1 Reinforcing the prefabricated element to the slot, fill and compact concrete. The tube 1 , the longitudinal bars 2 and the steel plate 3 form a rigid connection. The longitudinal bar 6 is with the handle 7 adjustable in the longitudinal direction, which makes the U - hanger 5 is rotated in the direction of a right angle to the construction. An injection hose 4 ,

2 the U-bolts 5 in position in the slot, as a cross arm, when the bar is pulled out. The U - shaped bracket 8th , on the outer tube 1 , allows rotation of the U - bracket 5 , at right angles to the longitudinal axis. In the outer tube 1 there is a sliding inner tube 9 , with the thread 10 and the closed end 13 ,

3 the elements in the installed state. Both in the outer tube 1 , as well as in the inner tube 9 are openings 11 cut. In the inserted state 16 if the nut 12 to the plate 3 pushes, cover the openings 11 from the two pipes - 1 and 9 , In this position concrete is pumped in. Through the extended handles 7 the overlap arises 14 , the U-hanger 5 , At the bumps 15 become the plates 3 welded together. face side 17 be the slots 27 , before the concrete pumps sealed with some shotcrete.

4 the pipe 9 , in condition 18 where the nut is 12 from the plate 3 moved away. The openings 11 are sealed. With the blowpipe 19 becomes the inner tube 9 after the concrete has been pumped in, cleaned.

The in the inner tube 9 inserted vibrator bottle 20 compacts the fresh concrete. The hard rubber rings 21 reduce hard knocks when shaking. In condition 16 are the openings 11 open, the union nut 23 gets on the thread 10 screwed and over the hose 22 concrete is pumped in.

5 the outer tube 1 , the inner tube 9 , with the openings 11 , as well as the plate 3 ,

6 a section through the sword, outside the chain 25 , above and below the screw conveyors 26 ,

7 a chain device, as a carrier for the sword.

8th the dome vault 28 , with the slot 27 , which with shotcrete 29 is sealed.

9 shows the sword for the chainsaw.

10 a screw conveyor.

11 the parts of a chainsaw for harder rock, the rollers and the teeth with slide manten are busy.

12 the parts of another chain.

13 the parts of a chain for loose rock. With the pulley 32 and the drive roller 31 , as well as a pivotable cutting member 30 , for running the chain in both directions, forward and backward.

14 the slot 27 from inside while concrete is being pumped.

15 a section through the tunnel, with the working face 28 and slot 27 ,

Claims (2)

Pipe and reinforcement, for concreting of slits in tunnels and special civil engineering, characterized in that the steel plate 3 , the tube 1 and the reinforcing bars 2 carries, what a movable rod 6 with the crossbars 5 is attached, wherein the pipe in the pipe, a system to concrete pump and compact to concrete is. Pipe and reinforcement according to protection claim 2, characterized in that a slot 27 Milled by a diamond-studded chain saw, at short intervals behind the chainsaw, the reinforcement is inserted, the concrete is filled and compacted.