Shield tunnel pipe piece fracture blockage device and construction method

Abstract

The invention discloses a shield tunnel pipe piece fracture blockage device. The device comprises an iron box, a reserved grouting pipe and rubber sleeves, wherein the iron box comprises a top plate,a pair of first side plates, a pair of second side plates and a base plate; the pair of the first side plates are relatively fixed on the two sides of the top plate; the pair of the second side platesare V-shaped and relatively fixed on the other two sides of the top plate; the base plate is reversely V-shaped and fixed on the bottom edges of the pair of the first side plates; multiple reserved grouting holes are symmetrically formed in the pair of the first side plates; a grouting hole is formed in the top plate; the iron box is made of a flexible steel piece; the reserved grouting pipe is in vertical sealing communication with the grouting hole; and multiple rubber sleeves are provided and sleeved at the outer periphery of the iron box for sealing and covering the multiple reserved grouting holes. The invention further discloses a shield tunnel pipe piece fracture blockage construction method. The device not only can achieve the pipe piece fracture blockage purpose, but also can form wedged bodies in pipe piece fractures to effectively reduce the blockage material falling risk.

Description

technical field [0001] The invention relates to the technical field of subway tunnel construction quality equipment. More specifically, the present invention relates to a shield tunnel segment fissure sealing device and construction method, which are suitable for plugging and repairing penetrating and non-penetrating fissures in shield tunnel segments. Background technique [0002] With the rapid development of my country's economy and technology, subway tunnel projects have been widely spr Due to the irregularity and irregularity of sheet fissures, there is still no effective and unified treatment method. As the permanent support structure of the shield tunnel, the segment is damaged or cracked, which will pose a huge threat to the safety of the shield tunnel and the later operation of the subway. [0003] Conventional techniques such as grouting or smearing plugging materials in the cave can achieve the purpose of sealing the segment cracks in a short period of time, but ...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of my country's economy and technology, subway tunnel projects have been widely spr Due to the irregularity and irregularity of sheet fissures, there is still no effective and unified treatment method

As the permanent support structure of the shield tunnel, the segment is damaged and cracked, which will pose a huge threat to the safety of the shield tunnel and the later operation of the subway

[0003] Conventional techniques such as grouting or smearing plugging materials in the cave can achieve the purpose of sealing the segment cracks in a short period of time, but with the passage of time and the influence of groundwater corrosion, the plugging materials are prone to aging, and when the train vibrates Under the action, it is also easy to cause the plugging material to fall off, etc.

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