Anti-cracking maintenance process for asphalt pavement around well lid
An asphalt pavement and anti-cracking technology, applied in the field of asphalt pavement maintenance, can solve problems such as pits at joints, cracking and damage of asphalt pavement, and achieve the effects of reducing rainwater penetration, cracking, and thermal expansion.
Active Publication Date: 2020-04-14
江苏瑞文戴尔交通科技有限公司
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Problems solved by technology
[0004] However, during long-term use, the asphalt pavement around the manhole cover is prone to cracking or even damage, resulting in pits on the asphalt pavement near the seams around the manhole cover, which is troublesome and needs to be improved
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Embodiment
[0042] A kind of asphalt pavement anti-crack maintenance technology around the manhole cover, such as figure 1 As shown, after the manhole cover is installed, the following steps are included:
[0043]S1, Grooving: Open a ring groove along the outer ring of the well cover. When slotting, first cut out the outermost ring with a cutting machine, and then use a chisel or an electric pick to break the asphalt pavement on the side of the cutting seam close to the well cover, and then Scoop out the debris to form a ring groove. The groove width of the ring groove is greater than or equal to 100mm, and the groove depth is greater than or equal to 10mm. When grooving, when the cracking of the asphalt pavement around the manhole cover is relatively slight, the depth of the ring groove can be less than or equal to 15mm. When the asphalt pavement around the manhole cover is severely cracked and damaged, the depth of the ring groove is greater than 15mm, usually 30-50mm. In this embodi...
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The invention discloses an anti-cracking maintenance process for an asphalt pavement around a well lid, and relates to the field of asphalt pavement maintenance, and the anti-cracking maintenance process comprises the following steps: S1, slotting: forming an annular groove along the outer ring of the well lid; S2, filling is conducted, when the depth of the annular groove is larger than 15 mm, concrete is poured into the annular groove to form a base layer, and the upper end face of the base layer is 15-20 mm lower than the road surface; when the depth of the annular groove is smaller than orequal to 15 mm, concrete does not need to be poured to form a base layer; S3, backfilling is conducted, specifically, the outer ring of the well lid is filled with asphalt to be flush with the road surface, and a glue groove is reserved in the outer ring of the well lid; and S4, glue filling is conducted, specifically, the glue groove is filled with a filling material, and a glue strip is formedafter the filling material is cured. By arranging the effect of the base layer and the rubber strips formed by concrete, the structural strength of the periphery of the well lid is enhanced. Meanwhile, the thickness of asphalt around the well lid is reduced, the thermal expansion amount of the asphalt layer is reduced, and the cracking condition of an asphalt pavement around the well lid is reduced by matching with the buffering effect of the rubber strips.
Description
technical field [0001] The invention relates to the field of asphalt pavement maintenance, in particular to an anti-cracking maintenance process for asphalt pavement around manhole covers. Background technique [0002] Manhole covers are used to cover road inspection wells to prevent people or objects from falling. [0003] Such as the Chinese invention patent whose patent number is CN106677221A, this patent discloses a kind of well cover flexible installation construction method. It includes the following steps: (1) Excavating the foundation pit; (2) Installing the prefabricated adjusting ring; (3) Installing the limit ring; (4) Sprinkling and installing the manhole cover; (5) Ramping the manhole cover; (6) Spreading asphalt; ( 7) Clean the asphalt on the surface of the manhole cover; (8) Pry up and hold the manhole cover; (9) Fill the asphalt material; (10) Stabilize the manhole cover and level it; (11) Compact the asphalt. [0004] However, during long-term use, the asp...
Claims
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IPC IPC(8): E01C23/09
CPCE01C23/096
Inventor 蒋小旦屠文杰
Owner 江苏瑞文戴尔交通科技有限公司