CN219410394U - Pitch road hole repair structure - Google Patents

Abstract

The utility model belongs to the field of municipal engineering, and particularly relates to an asphalt road pit repairing structure, which comprises a hot material filling layer, a joint tape, a sand-containing fog sealing layer and a pouring sealant sealing edge, wherein the hot material filling layer is a main body of the repairing structure and is filled in a pit; the joint tape is connected between the side wall of the hot material filling layer and the side wall of the pit slot, and is configured as follows: when the preset temperature is reached, the joint tape is melted, and the hot material filling layer is tightly adhered to the old pavement structure; the sand-containing fog seal layer is coated on the upper surface of the hot material filling layer; the edge sealing of the pouring sealant is connected with the top edge of the hot material filling layer and the top edge of the pit slot, so that the edge sealing of new and old pavements is realized. The utility model is provided with the joint tape and the sand-containing fog seal layer, so that rainwater can be prevented from penetrating into new and old asphalt cold joints of the pit slot, and the damage of the rainwater to the asphalt pavement is reduced.

Description

Pitch road hole repair structure

Technical Field

The utility model belongs to the field of municipal engineering, and particularly relates to an asphalt road pit repairing structure.

Background

In maintenance construction of urban asphalt roads, in order to meet the requirements of occupying less roads and quickly recovering traffic, asphalt cold material filling, milling repair of an upper surface layer and other surface layer treatment modes are often adopted for tunnel asphalt surface layer diseases, and on the aspect of daily disease tracking, the positions of the diseases are mostly repeated points, and after repair, the durability is poor, particularly in rainy and snowy weather, the repairing rate is high, and the repairing rate is very easy to damage secondarily.

Disclosure of Invention

In order to make up the defects of the prior art, the utility model provides a technical scheme of an asphalt road pit repairing structure.

An asphalt road pothole repair structure comprising:

the hot material filling layer is a main body of the repairing structure and is filled in the pit;

the joint tape, the joint tape is connected between hot material filling layer lateral wall and pit groove lateral wall, and it is configured to: when the preset temperature is reached, the joint tape is melted, and the hot material filling layer is tightly adhered to the old pavement structure;

the sand-containing fog sealing layer is coated on the upper surface of the hot material filling layer;

and the pouring sealant edge is connected with the top edge of the hot material filling layer and the top edge of the pit slot, so that the edge sealing of the new and old pavement is realized.

Further, the hot material filling layer comprises a hot material filling upper layer and a hot material filling lower layer which are arranged up and down.

Further, the hot material filling layer is of an asphalt structure.

Further, the hot material filling lower layer is of an AC-20 asphalt mixture structure; the hot material filling upper layer is of an AC-10 asphalt mixture structure.

Further, the thickness of the hot material filling layer is 10-13 cm, the thickness of the hot material filling upper layer is 6-8 cm, and the thickness of the hot material filling lower layer is 3-5 cm.

Further, the thickness of the hot material filling layer is 10cm, and the thickness of the hot material filling lower layer is 4 cm.

Further, the sand-containing fog sealing layer is in a MasterSeal asphalt concentration sealing material structure.

Further, the joint tape is of asphalt cement structure.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model is provided with the joint tape and the sand-containing fog seal layer, so that rainwater can be prevented from penetrating into new and old asphalt cold joints of the pit slot, and the damage of the rainwater to the asphalt pavement is reduced. The joint tape can ensure that the joint thickness and width of the periphery of the pit are consistent, new asphalt and old asphalt are tightly and uniformly adhered, the sealing and waterproof functions are achieved, the sand-containing fog sealing layer can fill gaps on the surface of asphalt concrete, the surface is more compact, water is not easy to accumulate and permeate, meanwhile, the phenomenon of surface layer stripping is avoided, friction force is reduced, and driving comfort is better.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model in use;

fig. 2 is a schematic diagram of a grooving structure of a pavement to be repaired.

In the figure:

1 is a hot material filling lower layer;

2 is a hot material filling upper layer;

3 is a joint tape;

4 is a sand-containing fog seal layer;

5, sealing edges by pouring sealant;

6 is transparent oil;

7 are pit slots.

Detailed Description

In the description of the present utility model, it should be understood that the terms "one end," "the other end," "the outer side," "the upper," "the inner side," "the horizontal," "coaxial," "the center," "the end," "the length," "the outer end," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

The utility model is further described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, an asphalt road pit repairing structure comprises a hot material filling layer, a joint tape 3, a sand-containing fog sealing layer 4 and a pouring sealant edge sealing 5.

The hot material filling layer is a main body of a repairing structure and is filled in the pit 7, the overall thickness is 10-13 cm, the hot material repairing structure comprises a hot material filling upper layer 2 and a hot material filling lower layer 1 which are arranged up and down, the hot material filling upper layer 2 is of an AC-10 asphalt mixture structure, the thickness is 3-5 cm, preferably 4cm, the hot material filling lower layer 1 is of an AC-20 asphalt mixture structure, and the thickness is 6-8 cm. The upper layer 2 is filled with hot material and the lower layer 1 is filled with hot material and is connected up and down, so that the hot material filling layer forms a whole, and the damage to the connecting position caused by overlarge shearing stress can be effectively reduced.

The joint tape 3 is connected between the hot material filling layer side wall and the pit 7 side wall, and is configured to: when the predetermined temperature is reached, the joint tape 3 melts and the hot-fill layer is tightly adhered to the old pavement structure.

Specifically, the joint tape 3 is an asphalt cement structure, and the joint tape 3 can be melted by using the high temperature of the hot material filling layer. The joint tape 3 is adhered to the periphery of the pit slot, the joint tape 3 ensures that the thickness and the width of the joint around are consistent, the joint tape melts under the action of hot-mixed asphalt, and the new asphalt and the old asphalt are tightly and uniformly adhered to play roles in sealing and waterproofing.

The sand-containing fog sealing layer 4 is of a MasterSeal asphalt concentration sealing material structure and is coated on the upper surface of the hot material filling layer. The sand-containing fog sealing material is coated on the upper surface of the hot material filling layer, so that gaps on the surface of asphalt concrete are filled, the surface is more compact, water is not easy to accumulate and permeate, meanwhile, the phenomenon of material stripping on the surface layer is avoided, friction force is reduced, and driving comfort is better.

The sealing edge 5 of the pouring sealant is connected with the top edge of the hot material filling layer and the top edge of the pit 7, so that the sealing edge of new and old pavements is realized.

According to the existing research, the maximum shearing stress of the road generally occurs at the position of 0-7cm in the running process of the vehicle on the common road section, and after the depth of 10cm, the variation trend of the shearing stress value is more gentle, the difference is not large, and the value is smaller. The original pit repairing grooving is generally about 4cm, and the shearing stress at the joint surface of the new asphalt and the old asphalt is large and is easy to damage.

The method controls the grooving depth of the pit to be more than 10cm, uses the hot-mix asphalt mixture, ensures that the joint surface is positioned below 10cm of the pavement, has no weak joint surface within the maximum shearing stress range, follows the principle of shallow hole deep repair, can effectively slow down the secondary damage of the pavement caused by overlarge shearing stress, and improves the repairing quality of the pit.

The construction sequence of the utility model is as follows:

step 1, cutting and forming the pit 7, which specifically comprises the following steps:

after the accumulated water in the pit 7 and the periphery is cleaned, the pit is cut into a rectangle according to the rule of 'round hole square compensation' and parallel to the driving direction, and the edge of the pit is outwards expanded by at least 10 centimeters for cutting.

Step 2, excavating a groove, which specifically comprises the following steps:

as shown in fig. 2, the excavation was made to a depth of at least 10cm greater than the pavement substrate and the 4 corner milling arcs were cut.

Step 3, base layer treatment, specifically comprising:

and removing asphalt materials loosened at the bottom and periphery of the pit, cleaning up impurities affecting the joint surface such as waste materials, dust and the like, and uniformly spraying penetrating oil 6 at the bottom and periphery of the pit 7, wherein the spraying thickness is 3-5mm.

Step 4, paving asphalt, adhering a joint strip 3 to the peripheral groove walls at the upper end of the pit 7, and tightly combining new and old pavements through the joint strip 3, wherein the method specifically comprises the following steps:

paving lower asphalt material at the bottom of a pit 7 to form a hot material filling lower layer 1, pasting a joint tape 3 on the peripheral groove walls of the upper end of the pit 7 after compacting, paving upper asphalt material to form a hot material filling upper layer 2 and compacting, and melting the joint tape by using the high temperature of the asphalt material, so that new asphalt and old asphalt are tightly combined, the upper asphalt layer and the lower asphalt layer are connected in a hot joint mode to form a whole, and damage to a joint caused by overlarge shear stress can be effectively reduced.

And 5, compacting the paved asphalt by rolling, and specifically comprising the following steps:

the paving asphalt is compacted by using a small impact rammer to reach 95% compactness.

Step 6, adopting a cover containing sand fog seal 4, specifically comprising:

coating a sand-containing fog sealing material on the surface of asphalt in time after the asphalt construction is finished to form a sand-containing fog sealing layer 4, wherein the thickness is controlled and the coating is uniformly covered during the coating; when the paint is applied, the rolling of the vehicle is avoided, and the peripheral mark lines are protected; and opening traffic after the fog sealing layer is dried.

And 7, sealing edges of seams of the new and old roadsides by adopting a professional filling and sealing machine, wherein the method specifically comprises the following steps of:

the temperature of the massive solidified joint filling glue is controlled, the joint filling glue is guaranteed to reach the optimal state, the edge sealing of the pouring glue is guaranteed to be straight and smooth, the thickness is consistent, and the width is consistent.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (8)

1. An asphalt road pothole repair structure, comprising:

the hot material filling layer is a main body of the repairing structure and is filled in the pit (7);

the joint tape (3), joint tape (3) connect between hot material filling layer lateral wall and pit (7) lateral wall, and it is configured to: when the preset temperature is reached, the joint tape (3) is melted, and the hot material filling layer is tightly adhered to the old pavement structure;

the sand-containing fog sealing layer (4), wherein the sand-containing fog sealing layer (4) is coated on the upper surface of the hot material filling layer;

and the pouring sealant edge seal (5) is connected with the top edge of the hot material filling layer and the top edge of the pit groove (7) to realize edge seal of new and old pavements.

2. The asphalt road pit repairing structure according to claim 1, wherein the hot material filling layer comprises a hot material filling upper layer (2) and a hot material filling lower layer (1) which are arranged up and down.

3. The asphalt road pit repair structure according to claim 2, wherein the hot material filling layer is an asphalt structure.

4. The asphalt road pit repair structure according to claim 2, wherein the hot-material filling lower layer (1) is an AC-20 asphalt mix structure; the hot material filling upper layer (2) is of an AC-10 asphalt mixture structure.

5. The asphalt road pit repairing structure according to claim 2, wherein the thickness of the hot material filling layer is 10-13 cm, the thickness of the hot material filling upper layer (2) is 6-8 cm, and the thickness of the hot material filling lower layer (1) is 3-5 cm.

6. The asphalt road pit repairing structure according to claim 5, wherein the thickness of the hot material filling layer is 10cm, and the thickness of the hot material filling lower layer (1) is 4 cm.

7. The asphalt road pit repair structure according to claim 1, wherein the sand-containing fog sealing layer (4) is a MasterSeal asphalt concentrated sealing material structure.

8. An asphalt pavement pit repair structure according to claim 1, wherein the joint tape (3) is an asphalt cement structure.