Bridge-tunnel strengthening member insert type grouting device and grouting method

Abstract

The invention discloses a bridge-tunnel strengthening member insert type grouting device and a grouting method. The bridge-tunnel strengthening member insert type grouting device comprises a fixing component, at least one grouting joint and at least one anti-overflow part; the fixing component is fixed to an external to-be-grouted pipe fitting and forms grouting sockets, and the first ends of the grouting joints and the grouting sockets form detachable connecting structures fitting each other; each anti-overflow part is arranged between the corresponding grouting socket and the to-be-grouted pipe fitting. Due to the bridge-tunnel strengthening member insert type grouting device and the grouting method, the grouting density is high, gaps, holes and air bubbles cannot be easily formed in the to-be-grouted pipe fitting, and the grouting device has the advantages of simple structure, low cost, convenience in installation and detachment, reusability, good quality and high strength of poured products, and material cost saving.

Description

technical field [0001] The invention relates to the construction field of reinforcement projects such as bridges and tunnels, in particular to an insert type grouting device and a grouting method for reinforcement components of bridges and tunnels. Background technique [0002] With the rapid development of urban infrastructure construction, bridges, tunnels, and rail transit are also developing rapidly. However, due to factors such as geological structure, soil environment, and operating seismic forces, there will be collapse, loose deformation, and settlement. For this reason, support Reinforcement technology is crucial. [0003] At present, domestic support and reinforcement technologies for bridges and tunnels mostly use steel plates for support, but the technology of the present invention involves the use of ring-shaped support members composed of composite high-strength materials on the outer surface of metal square tubes. After the members are installed and fixed on t...

AI Technical Summary

Problems solved by technology

In the prior art, metal guide pipes are mostly welded at both ends of the reinforcement member, and metal threads are used to connect with the copper valve. Therefore, the prior art has the following deficiencies: 1. The reinforcement member may pass through various groups densely distributed on the inner wall when it is installed in the body to be reinforced. Cables, metal guide tubes at both ends of the strengthening member may cause not only difficulties in traversing but also the risk of cutting the cables

2. The metal body inside the pipe section is generally composed of multiple metal square tubes that are welded in parallel. Multiple metal guide tubes must be welded at each end of the reinforcement member to meet the respective grouting requirements of the four square tubes inside the metal body. The guide tube Generally, in order to consider the overall size of the copper valve and the operability of the valve handle, a double-row dislocation arrangement method is adopted. This method also has obvious disadvantages: a. Due to the double-row vertical arrangement of the guide pipe, the pipe section base and the guide pipe The welding rod rubs when the pipe is connected by electric welding, resulting in poor welding process

b. After the copper valve is installed and tightened, it is difficult to ensure that the valve handle is in the ideal position, that is, the position of the handle cannot be preset after tightening, resulting in inconvenient operation during grouting

c. High cost. The existing technology generally uses multiple copper valves and multiple guide pipes at both ends of the pipe section, resulting in high cost

[0004] In addition, the existing grouting devices and technologies are not easy to completely fill the metal pipe fittings to be poured, and it is easy to form voids, cavities and air bubbles in the grouted pipe, which seriously affects the quality of the product after pouring

And it is not easy to install and disassemble, and cannot be reused, and the slurry also has the problem that it cannot be reused conveniently, resulting in waste

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