Quick mounting device and mounting method thereof

Abstract

The invention discloses a quick mounting device and a mounting method thereof. The quick mounting device comprises a pre-embedded sleeve and an external channel. The pre-embedded sleeve comprises a steel pipe, an umbrella-shaped expansion end, a bolt, a spring washer and a square washer. One end of the steel pipe serves as the umbrella-shaped expansion end and is pre-poured in a shield segment, and the other end of the steel pipe is attached to the inner surface of the shield segment. The external channel is connected with the other end of the steel pipe through the bolt, the spring washer andthe square washer, so that the external channel is closely attached to the outer surface of the shield segment. The integrity and durability of a shield tunnel are improved, and quick mounting of subway tunnel electromechanical equipment and pipelines is achieved.

Description

technical field [0001] The invention belongs to the technical field of shield tunnel construction, and in particular relates to a quick-installation device and an installation method thereof. Background technique [0002] With the launching of subway projects in large and medium-sized cities in various places, the shield method has established an absolute dominant position in the construction of urban tunnels, and some people call it the urban tunnel construction method. The original subway pipelines and electromechanical equipment were mostly installed by chemical reinforcement or expansion bolts. However, these prefabricated building methods are relatively simple in design, have low systematic requirements, and have great limitations: chemical reinforcement or Expansion bolts need to be drilled in the existing structure. During the drilling process, structural steel bars may be encountered, which will cause certain damage to the structure itself and affect the durability o...

AI Technical Summary

Problems solved by technology

The original subway pipelines and electromechanical equipment were mostly installed by chemical reinforcement or expansion bolts. However, these prefabricated building methods are relatively simple in design, have low systematic requirements, and have great limitations: chemical reinforcement or Expansion bolts all need to be drilled on the existing structure. During the drilling process, structural steel bars may be encountered, which will cause certain damage to the structure itself and affect the durability of the structure. Chemical planting bars or expansion bolts have a limited life. It is easy to corrode, and generally needs to be maintained or replaced within 15 years of use, which is far from meeting the 100-year durability requirement of the subway; the implanted steel bars or expansion bolts are in contact with the steel mesh, which is likely to cause corrosion of structural steel bars and affect structural safety

Images