Small tremie grouting machine for tunnel construction

Abstract

The invention discloses a small tremie grouting machine for tunnel construction. The small tremie grouting machine comprises a cantilever, a supporting disc is fixedly connected to one end of the cantilever, and a plurality of grouting devices are arranged on the supporting disc; the grouting devices comprise sliding blocks, a plurality of sliding grooves are formed in the side, away from the cantilever, of the supporting disc, the sliding blocks are slidably connected with the sliding grooves in one-to-one correspondence, a supporting box is fixedly connected to the sliding blocks, an extending hole is formed in one end of the supporting box, an injection pipe is slidably connected into the extending hole, a storage pipe is fixedly connected to the outer side of the supporting box, a piston plate is slidably connected into the storage pipe, a pushing rod is fixedly connected to one side of the piston plate, the pushing rod extends to the outer part of the storage pipe, a conveying pipe is fixedly connected to the other end of the storage pipe, and the other end of the conveying pipe communicates with the injection pipe and is fixedly connected with the injection pipe. According tothe small tremie grouting machine, a grouting hole is grouted by the injection pipe, and meanwhile retracting is conducted, so that the grouting hole can be fully filled with cement slurry, and the foundation strengthening effect is improved.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a small conduit grouting machine for tunnel construction. Background technique [0002] In the process of tunnel construction and putting into use, in the water-rich area where the tunnel is laid out, the inner wall of the tunnel may suddenly leak water. In severe cases, the overall service life of the tunnel will be affected. Therefore, it must be To seal and strengthen the leaking inner wall gaps, the staff usually cleans and reinforces the leaking area inside the tunnel, and then punches holes in the leaking gaps, and injects cement slurry into the holes for reinforcement. [0003] When the grouting pipe is taken out after the grouting is completed, the volume of the grouting pipe itself will cause gaps in the cement slurry inside the hole after the grouting pipe is pulled out, which is not conducive to completely sealing the hole, and the grouting In the process ...

AI Technical Summary

Problems solved by technology

[0003] When the grouting pipe is taken out after the grouting is completed, the volume of the grouting pipe itself will cause the cement slurry inside the hole to have a gap after the grouting pipe is pulled out, which is not conducive to the complete sealing of the hole, and the grouting In the process of dismantling the connection between the machine and the grouting pipeline, the operation method is complicated and repetitive, which will consume extra time and energy

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