[0025] In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are proposed for a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from obstructing the description of this application.
[0026] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the existence of the described features, wholes, steps, operations, elements and/or components, but does not exclude one or more other The existence or addition of features, wholes, steps, operations, elements, components, and/or collections.
[0027] In order to make the drawings concise, the drawings only schematically show the parts related to the present invention, and they do not represent the actual structure of the product. In addition, in order to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is schematically shown, or only one of them is marked. In this article, "a" not only means "only this one", but can also mean "more than one".
[0028] It should be further understood that the term "and/or" used in the specification and appended claims of this application refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations .
[0029] In the embodiment shown in the drawings, the direction indications (such as up, down, left, right, front and back) are used to explain the structure and movement of the various components of the present invention, not absolute but relative. These descriptions are appropriate when these components are in the positions shown in the drawings. If the description of the location of these components changes, the directions of these directions will also change accordingly.
[0030] In addition, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0031] In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the specific embodiments of the present invention will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings and obtained Other embodiments.
[0032] In the first embodiment, such as figure 1 As shown, this embodiment provides a drainage asphalt pavement with a replaceable horizontal drainage hose, which includes from top to bottom: a large void permeable asphalt concrete surface layer 1, a modified emulsified asphalt bleeding seal layer 3, and an asphalt mixture The middle and lower layer 5, the graded crushed stone seal layer 6, the bonding layer and the base layer 7. Among them, the middle and lower layer 5 of the asphalt mixture is provided with a horizontal drainage cutting groove 4, and the horizontal drainage cutting groove 4 is provided with multi-layer water permeable Drain pipe group 2. The drainage pipe group 2 includes a spiral spring-type metal permeable hose and a porous and permeable PVC drainage pipe group. The metal permeable hose is sleeved outside the PVC drainage pipe group. The PVC drainage pipe group includes multiple PVC drainage pipes of different pipe diameters. Multiple PVC drainage pipes of different pipe diameters are sleeved in sequence according to the pipe diameter. A high-efficiency lubricant is coated between the multiple PVC drainage pipes of different pipe diameters. In this embodiment, by optimizing the drainage pipe set 2 of the drainage asphalt pavement, the replaceable drainage pipe set 2 is adopted. When the drainage pipe set 2 is blocked, the blocked PVC drainage pipe can be replaced with the blockage in a new way. Withdrawing to realize the unobstructed drainage channel in the drainage pipe, the replacement process is convenient and quick, and the design method of multi-layer PVC drainage pipe sleeve realizes the function of multiple extraction, and extends the drainage by extending the unobstructed life of the horizontal drainage pipe group The life of the overall water seepage function of the asphalt pavement.
[0033] Specifically, the large-void permeable asphalt concrete surface layer 1 refers to the artificially selected mineral material (gravel or crushed gravel, stone chips or sand, mineral powder, etc.) with a certain gradation composition and a certain proportion of road asphalt materials , Mixture made under strict control conditions. The thickness of the large void permeable asphalt concrete surface layer 1 is 40-60mm, and the porosity is 18-22%. In order to ensure the compaction effect of the layer mixture in the construction process, diabase or basalt is preferred.
[0034] The width of the transverse drainage slot is 40-50mm, and the depth of the transverse drainage slot is 20-25mm, which is cut by a small cutting machine. The drainage pipe set 2 is composed of two different material permeable pipes. The outer layer is a spiral spring-type metal permeable hose, which has been anti-rust treatment, and the inner hole diameter is 20-30mm. The inner layer is a set of porous and permeable PVC drainage pipes, the inner diameter of which is smaller than the outer spiral spring type metal permeable hose. The PVC drainage pipe set is composed of 2-3 layers of PVC drainage pipe sleeves. In order to ensure that the PVC drainage pipe can be easily drawn out, it is necessary to apply a high-efficiency lubricant between the layers of the PVC drainage pipe.
[0035] The modified emulsified asphalt water-bleeding seal layer 3 is impermeable, the thickness of the modified emulsified bitumen water-bleeding seal layer 3 is 0.3-0.6 mm, and the modified emulsified bitumen water-bleeding seal layer 3 is preferably a slurry seal.
[0036] The lower layer 5 in the asphalt mixture is composed of dense-graded asphalt mixture. The thickness of the lower layer 5 in the asphalt mixture is 50-60 mm, and the porosity is 3-6%. The lower layer 5 of the asphalt mixture is preferably AC-16/AC-20 graded asphalt mixture. The graded gravel seal 6 is a synchronous gravel seal.
[0037] The adhesive layer is adhesive layer oil or permeable layer oil. The adhesive layer needs to be determined according to the type of base layer 7. When the base layer 7 is of asphalt concrete type, the adhesive layer oil is used; when the base layer 7 is a cement concrete panel, the permeable layer oil is used . When the base layer 7 is an elevated cement concrete panel, a bridge surface shot blasting machine needs to be used for roughening treatment to increase the friction of the panel.
[0038] The construction process of the replaceable drainage asphalt pavement with the horizontal drainage hose of the present invention is as follows:
[0039] 1) Preparation for construction: Lay out the line in accordance with the design requirements, clean up the site, and prepare materials and tools;
[0040] 2) Base 7 treatment: When it is an elevated cement concrete panel, use a bridge deck shot blasting machine for roughening treatment. When it is an asphalt concrete type, it is necessary to ensure water bleeding and flatness during the construction of the base layer;
[0041] 3) Sprinkle sticky layer oil/permeable layer oil: when the base layer is asphalt concrete type, spread the sticky layer oil, when the base layer is a cement concrete panel, spread the permeable layer oil;
[0042] 4) Construction of graded gravel seal layer 6: When the sticky layer oil/permeable layer oil is spread, use professional vehicles to carry out the graded gravel seal layer construction to improve the pavement's anti-seepage ability and improve the road surface smoothness and other properties;
[0043] 5) Pavement of the lower layer 5 in the asphalt mixture: After the construction of the graded gravel seal layer is completed, the lower layer AC-16/AC-20 asphalt mixture can be pavement. The construction process strictly controls the gap of the asphalt mixture Rate indicators to ensure the anti-seepage ability of the road surface, while strictly controlling the flatness indicators;
[0044] 6) Treatment of transverse drainage slot 4: Use a small on-site cutting machine for cutting, 40-50mm wide and 20-25mm deep. After cutting, clean the debris in the slot with a vacuum cleaner;
[0045] 7) Construction of modified emulsified asphalt water-bleeding seal layer 3: use professional sealing construction vehicles to implement the construction of modified emulsified bitumen water-bleeding seal layer 3. The construction process strictly controls the amount of spreading to ensure water bleeding and thickness;
[0046] 8) Laying of drainage pipe group 2: Before laying the drainage hose, confirm that the entire pipe body is not damaged. The drainage hose should be laid flat in the middle of the horizontal drainage groove, and the two ends should be fixed at the side ditch of the road. A section outside the road surface, do not cause the drainage hose to run off during the construction process;
[0047] 9) Construction of large-void permeable asphalt concrete surface layer 1: After the drainage hose is laid, the surface layer asphalt mixture is constructed. During the construction process, be careful not to cold joints, and ensure the construction compactness and flatness, to ensure the edge Drain smoothly, do not cut the edges.
[0048] The replacement process of the drainage hose 2 of the drainage asphalt pavement which can be replaced by the horizontal drainage hose of the present invention is as follows:
[0049] 1) Construction preparation: prepare materials and tools;
[0050] 2) Replacement of drainage hose 2: Before replacement, plug the PVC pipe in the innermost layer of drainage hose 2 at both ends, and use special tools to connect one end of the innermost PVC pipe to the traction machine, and use the traction machine to The inner PVC pipe is pulled out and the replacement process is completed.
[0051] In the above-mentioned embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in an embodiment, reference may be made to related descriptions of other embodiments.
[0052] It should be noted that the above embodiments can be freely combined as required. The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also It should be regarded as the protection scope of the present invention.
