New and old pavement base lap joint structure
A pavement base layer and joint structure technology, which is applied to roads, roads, pavement details, etc., can solve the problems of easy gaps at the joints of old and new pavements, and achieve the effect of enhancing the firmness of the connection and firm connection
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Embodiment 1
[0037] refer to figure 1 , is a new and old pavement base overlapping structure disclosed by the present invention, comprising: a subgrade 1, an old pavement main body 2 and a new pavement main body 3.
[0038]The old road surface main body 2 and the new road surface main body 3 are all arranged on the subgrade 1. The old road surface main body 2 includes an old road support layer 21 and an old road surface layer 22 laid sequentially from bottom to top. The end face of the old road support layer 21 is excavated with a first Steps, a second step is formed between the end face of the old road support layer 21 and the end face of the old road surface layer 22, and a third step is excavated on the end face of the old road surface layer 22, the first step, the second step, and the third step step by step Heightening; new road surface main body 3 includes: new road base layer 31, new road support layer 32 and new road surface layer 33, new road support layer 32 is formed by laying c...
Embodiment 2
[0053] refer to image 3 , is a new and old pavement base overlapping structure disclosed by the present invention, and the difference from Embodiment 1 is that a layer of glass fiber cloth 10 is laid on the upper surface of the new road base 31 and the bottom surface of the first step, and then A new road support layer 32 is formed on the glass fiber cloth 10. The glass fiber cloth 10 has high strength, corrosion resistance, and is not easy to be torn, so the glass fiber cloth 10 further enhances the connection strength of the old and new pavement seams and is more durable.
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