Wet joint structure suitable for fabricated pavement and construction method thereof

Abstract

The invention discloses a wet joint structure suitable for a fabricated pavement and a construction method thereof. A prestress hole channel is reserved in a prefabricated cement pavement slab, and adowel bar is arranged on the slab surface and chiseled; the cement board is hoisted and located on a flat sliding layer, a cast-in-place seam is reserved, a formwork is installed at the end of the cast-in-place seam, and the corrugated pipe is connected with two adjacent plate prestress ducts and penetrates through ribs; structural steel bars are overlapped between the two panels, and micro-expansion high-performance concrete is poured; and prestress tensioning is conducted, and cement paste is poured from a grouting opening. The wet joints are arranged, and the prestressed tendons are tensioned so that the pavement integrity is enhanced, and the anti-shearing capacity is improved; the problem that assembly and butt joint of the assembled pavement are difficult is solved, and the construction progress is accelerated; the problem that the joint of the fabricated prestressed pavement slab is prone to breakage and water leakage is solved by chiseling the pavement, arranging the dowel barsand pouring the micro-expansion high-performance concrete, the structural stability is improved, and the service life of the pavement is prolonged.

Description

Technical field [0001] The invention relates to the field of cement concrete pavements, in particular to a wet joint structure suitable for fabricated pavements and a construction method thereof. Background technique [0002] Cement concrete pavement is widely used because of its high strength, strong bearing capacity, good stability and long service life. However, due to the influence of temperature and construction conditions, ordinary cement concrete pavement requires a large number of joints. The joint destroys the continuity and flatness of the road surface and affects driving comfort. At the same time, the joints are the passages through which the road surface can seep under water. Under the action of traffic load, it is easy to cause mud, slab bottom voiding, chipping, dislocation and other diseases, which affect the durability of the road surface. [0003] The pre-stressed fabricated concrete pavement offsets the tensile stress in the concrete slab caused by factors such ...

AI Technical Summary

Problems solved by technology

However, this invention is suitable for prefabricated bridge decks, and the structural form does not match the prefabricated pavement, and its construction process is more complicated, the construction period is longer, and the cost is higher

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