Wall-separation type assembly structure for tunnel

Abstract

The utility model provides a tunnel off-wall type assembling structure which comprises an arch crown prefabricated part, side wall prefabricated parts and an arch crown hoisting system, the side wall prefabricated parts are fixedly installed on surrounding rocks on the two sides, the arch crown prefabricated part is fixedly installed on the tops of the side wall prefabricated parts, and the arch crown hoisting system is movably arranged on the surrounding rocks on the top. A hoisting hole is formed in the vault prefabricated part, the vault hoisting system comprises a hollow grouting anchor rod located on the top surrounding rock and a guide rail connected to the hollow grouting anchor rod, a lifting hook is movably arranged on the guide rail, and the lifting hook can be hooked in the hoisting hole. The prefabricated parts are made of ultrahigh-performance prestressed concrete, so that the arch crown prefabricated parts and the side wall prefabricated parts are light in weight, and the construction efficiency is improved; the hoisting hole is formed in the vault prefabricated part, the vault hoisting system with the lifting hook is adopted, the connecting mode of the vault prefabricated part and the vault hoisting system can be simplified through hooking and splitting of the lifting hook and the hoisting hole, and the construction efficiency is further improved.

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