Waterproof structure with slotted hollow elastic tubes embedded in cement concrete pavement joints

A technology of cement concrete and waterproof structure, which is applied in the direction of roads, roads, pavement details, etc. It can solve the problems of long-term, road traffic closure and restricted traffic, etc., and achieve good durability, large stretching and compression space, and large pre-compression. Effect
CN105525555BInactive Publication Date: 2019-07-23CHONGQING JIAOTONG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING JIAOTONG UNIVERSITY
Publication Date
2019-07-23
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a waterproof structure of embedding a hollow elastic pipe in a cement concrete pavement joint. The waterproof structure of embedding the hollow elastic pipe in the cement concrete pavement joint comprises a hollow elastic pipe, which is embedded in the joint and can horizontally retract with expansion and retraction of a pavement slab; the elastic pipe is at least provided with an arched convex part upwards under an extruding effect of the pavement slab; the surface, right against the joint, of the hollow elastic pipe is provided with an open joint, whose interior and exterior are communicated with each other. As the pre-compressed magnitude of a hollow elastic waterproof piece is large and the stretching and compressing spaces of the hollow elastic waterproof piece are large, the hollow elastic waterproof piece can adapt to deformations, in particular horizontal telescopic deformation and vertical shearing deformation, of a concrete slab for a long time; and as the compression degree of the hollow elastic waterproof piece is suitable for the hollow elastic waterproof piece to expand and retract, when the width of transverse joint is changed with the temperature, the elastic waterproof piece cannot be separated from the transverse joint to cause damage at the connecting part of the transverse joint and the elastic waterproof piece through reducing interface stresses of telescopic and shearing deformations of the transverse joint under situations of the telescopic deformation and the shearing deformation of the transverse joint.
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Description

technical field

[0001] The invention relates to a waterproof structure, in particular to a waterproof structure in which a slotted hollow elastic tube is embedded in a cement concrete pavement joint. Background technique

[0002] The joints of cement concrete pavement can be divided into two categories: longitudinal joints and transverse joints. Seams parallel to the center line of the course are called longitudinal seams, and seams perpendicular to the course are called transverse seams. However, when rainwater exists or flows on the pavement, the rainwater will seep from the joints of the pavement to the pavement structure, causing water accumulation or water content in the pavement structure to increase, and eventually lead to structural strength of the pavement layer, base layer, subbase layer, cushion layer, etc. On the other hand, under the dynamic and static load of the vehicle, the accumulated water or infiltrated water in the pavement structure will generate hydrod...

Claims

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