Tunnel second lining vault with mold grouting machine is widely used in the construction technology of arch with mold grouting


According to no. 199 document of bridge and tunnel letter of China Railway Engineering Group, it is required to grouting the tunnel lining vault in time.In order to improve the integrity and compactness of tunnel vault lining quality, strengthen the monitoring and management of the grouting of tunnel vault lining concrete, master the situation of overexcavation of support, carry out mold grouting in the undense part of the vault in time, and ensure the integrity of the arch lining structure.Tunnel second lining vault with mold grouting machine is a special grouting machine for tunnel lining, tunnel second lining vault with mold grouting machine set mixing, pulping, slurry storage, grouting, automatic printing flow and pressure and other functions as a whole, add touch screen function, easier to operate, more convenient to use.Tunnel second lining vault with mold grouting machine is a special grouting machine for tunnel lining, which integrates mixing, pulping, slurry storage, grouting, automatic printing flow and pressure and other functions. It supports intelligent touch screen operation function and is easy to operate.Tunnel vault with mold grouting machine adopts double layer design, upper layer pulping, lower layer mixing, front end grouting, grouting pressure and flow automatic printing, to achieve one equipment “mixing grouting construction”, reduce equipment investment at the same time, improve the efficiency of grouting, but also reduce the labor intensity of field operation personnel.Tunnel second lining of tunnel vault vault with grouting machine with grouting, in order to improve the quality of the tunnel vault lining of integrity and compactness, to strengthen the monitoring of tunnel vault lining concrete perfusion summit and management, grasp the overbreak situation of support, in a timely manner vault imperfect parts with grouting, guarantee the vault lining structure integrity.Through the transformation of the second lining trolley, the cavity grouting of the second lining vault of the tunnel can be realized. After 2 ~ 6h of the completion of the second lining pouring, the cavity grouting of the second lining vault can be realized under the condition of no stripping, which effectively improves the construction efficiency and ensures the compacting of the second lining vault.Tunnel second lining vault with mold grouting machine includes a whole set of new grouting process, new tooling equipment and high-performance filling materials, which greatly improves the quality of grouting while simplifying the traditional grouting process.Tunnel second lining vault with mold grouting construction technology, in the tunnel second lining lining trolley vault formwork set up four vertical grouting holes, installed reactive powder ultra-high strength concrete (RPC) grouting pipe in the holes, the second lining concrete pouring 1 to 2 hours after completion, before the release of mold grouting.The grouting material adopts the filling mortar with high fluidity, slight expansion, early strength and slow setting, which forms an organic whole with the secondary lining concrete, thus solving the defect of “two skins” between the traditional slurry and the secondary lining concrete.Tunnel second lining vault with mold grouting machine Integrated with pulping, slurry storage, grouting, automatic printing, and has a high grouting pressure, can fully overcome the resistance of low water-material ratio slurry pipeline and slurry vertical transportation resistance.Using the support of the lining trolley, concrete pouring finished in time grouting.Short construction time does not affect other processes.By simplifying the construction technology of embedded pipe and grouting, improving the grouting fixture and the combination material of micro-expansion grouting in lining, the hidden project of lining arch pouring can be transformed into “visible” project, which can effectively prevent the defects of lining arch.The micro-expansion grouting combination material has the defects of repairing construction gap, cold joint and concrete uncompactness, missing edge and falling Angle.Through the penetration of the slurry to plug the damage of the waterproof board, the formation of “mushroom” type embolism, with water plugging function.The grouting quantity of each ring lining is counted, and the implementation process is managed and assessed to force the construction team to improve the lining perfusion quality.Tunnel second lining vault with mold grouting machine

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