Active and passive integrated water-stopping middle-buried type water-stopping strip structure for deformation joint

Abstract

The invention discloses an active and passive integrated water-stopping middle-buried type water-stopping strip structure for a deformation joint. The active and passive integrated water-stopping middle-buried type water-stopping strip structure is characterized in that an upper boss and a lower boss are integrally formed in the middle of a main strip body; a cavity is formed between the upper boss and the lower boss; side bags are arranged at the two ends in the width direction of the main strip body; water inlets communicating with inner cavities of the side bags are formed in the upper parts of the side bags; water-contact expansion bodies adapted to the side bags are arranged in the inner cavities of the side bags; and metal locating pieces are fixedly arranged on the outer sides of the side bags on the two sides. According to the active and passive integrated water-stopping middle-buried type water-stopping strip structure, active water plugging of the main strip body, the side bags and the metal locating pieces is realized, and passive water plugging is realized when the water-contact expansion bodies in the side bags expand after being contacted with water, so that the multipass water plugging goal is achieved; with the combination of the active water plugging and the passive water plugging, multipass water plugging is realized, and the water plugging effect is good; the side bags have protection and restraint functions on the water-contact expansion bodies, so that the water plugging effect can be improved; the active and passive integrated water-stopping middle-buried type water-stopping strip structure is simple and feasible; the construction cost can be saved; the engineering quality is easy to control; and the water is stopped on the water coming side, so that the durability of a concrete structure is good.

Description

technical field [0001] The invention belongs to the technical field of waterproofing of tunnels and underground engineering, and in particular relates to a mid-buried waterstop structure for active and passive integrated waterstopping of deformation joints. Background technique [0002] At present, tunnels and underground projects generally adopt the principle of waterproofing the main body of the structure, and focusing on the waterproofing of detailed structures such as construction joints and deformation joints. However, due to the level of construction and technology, the shrinkage and creep of concrete, and the performance differences between waterproof materials and concrete, etc., there are defects in detailed waterproofing, and water seepage in details such as construction joints and deformation joints has become a prominent engineering problem in current tunnel and underground projects. Tunnels and underground projects are mostly reinforced concrete structures, and ...

AI Technical Summary

Problems solved by technology

However, due to the level of construction and technology, the shrinkage and creep of concrete, and the performance differences between waterproof materials and concrete, etc., there are defects in detailed waterproofing, and water seepage in construction joints and deformation joints has become a prominent engineering problem in current tunnel and underground projects.

Tunnels and underground projects are mostly reinforced concrete structures. Groundwater invades the main body of the structure, causing corrosion of steel bars and deterioration of concrete, which endangers the durability of the structure. At the same time, it affects the normal operation of tunnels and underground projects and increases operating costs.

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