CN217629253U - Urban road curb mounting structure - Google Patents

Abstract

The utility model discloses an urban road curb mounting structure, which comprises a group of curbs, a sidewalk brick layer or an asphalt gravel layer connected between adjacent curbs, and road shoulders connected to the two ends of the group of curbs; a cement concrete layer, a graded gravel subbase layer, a sand-gravel replacement base layer and a tamped bottom roadbed are sequentially connected from top to bottom below the sidewalk brick layer; an asphalt concrete layer, a cement stabilizing gravel layer, a graded gravel subbase layer, a sand gravel replacement base layer and a tamping bottom roadbed are sequentially connected from top to bottom below the asphalt gravel layer. The utility model discloses a setting of curb, wherein the curb and curb correspond respectively and cut apart the road, and the curb corresponds and sets up in the curb, can classify the setting to the curb according to different positions; through the setting on kerbstone even concrete layer, do benefit to and be connected kerbstone and the gradation gravel subbase of below and side.

Description

Urban road curb mounting structure

Technical Field

The utility model belongs to the technical field of the urban road construction, in particular to urban road curb mounting structure.

Background

During road construction, the kerbstone is the key point of construction, and can separate the road into different functional roads. When the kerbstone is installed, the kerbstone also needs to be pertinently designed with the connection between the base layers of the road, so that the accuracy and the firmness of the installation and the connection of the kerbstone are ensured. When constructing a more complex urban road, how to connect the kerbstone with the layered structures such as the concrete layer and the gravel layer at the lower part is also the key point of construction.

SUMMERY OF THE UTILITY MODEL

The utility model provides an urban road curb mounting structure for solve the technical problem such as installation, pedestrian road and the connection of bituminous paving and curb of the different curb of urban road and each structural layer design of road.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an urban road curb mounting structure comprises a group of curbs, a sidewalk brick layer or an asphalt gravel layer connected between adjacent curbs, and road shoulders connected to two ends of the group of curbs;

a cement concrete layer, a graded gravel subbase layer, a sand-gravel replacement base layer and a tamped bottom roadbed are sequentially connected below the sidewalk brick layer from top to bottom;

and an asphalt concrete layer, a cement stabilized gravel layer, a graded gravel subbase layer, a sand gravel replacement base layer and a tamping bottom roadbed are sequentially connected from top to bottom below the asphalt gravel layer.

Further, the curb includes founding curb and curb, the flat curb sets up in the both ends of a set of curb, and the flat curb outside is the curb.

Further, the grit subbase is joined together to the level includes that the grit subbase is joined together to the level and the grit subbase is joined together to the level, the grit subbase is joined in pavement brick layer and pitch gravel layer below to the level, and the grit subbase is joined together to the level and is connected in pavement brick layer below.

Furthermore, a cement mortar layer is arranged between the sidewalk brick layer and the cement concrete layer, the thickness of the cement mortar layer is not less than 3cm, and the thickness of the cement concrete layer is not less than 15cm.

Further, asphalt concrete layer includes coarse grain formula asphalt gravel layer and middlings formula asphalt concrete layer, middlings formula asphalt concrete layer is located coarse grain formula asphalt gravel layer top, still be provided with synchronous rubble seal between coarse grain formula asphalt gravel layer and the cement stabilization sand gravel layer, 1cm is no less than to synchronous rubble seal.

Further, it still is provided with the kerbstone and links the concrete layer with the side to found the kerbstone below, and the kerbstone links the concrete layer and includes concrete layer and kerbstone side concrete layer under the kerbstone, concrete layer connects between graded gravel subbase and founding the kerbstone under the kerbstone, and kerbstone side concrete layer connects between founding the kerbstone side and graded gravel subbase.

Further, a kerbstone cement mortar layer is arranged between the vertical kerbstone and the kerbstone concrete layer, and the thickness of the kerbstone cement mortar layer is not less than 3cm; still be provided with fine stone concrete layer between flat kerbstone and the graded gravel subbase, fine stone concrete layer thickness is no less than 4cm.

Further, the construction joint is arranged between the adjacent vertical kerbs in the length direction of the road, the width of the construction joint is not more than 10mm, and the construction joint is arranged between the adjacent horizontal kerbs in the length direction of the road and is not more than 3mm.

Furthermore, the curb close to one side of the green belt is also provided with a soil returning tamping layer, the width of the soil returning tamping layer is not less than 50cm, the height of the soil returning tamping layer is parallel to the top of the backrest of the cement concrete layer, and the compaction degree of the soil returning tamping layer is not less than 90%.

The beneficial effects of the utility model embody:

1) The utility model discloses a setting of curb, wherein the curb and curb correspond respectively and cut apart the road, and the curb corresponds and sets up in the curb, can classify the setting to the curb according to different positions;

2) The utility model is beneficial to connecting the kerbstone with the graded gravel bottom base layer below and at the side through the arrangement of the kerbstone concrete layer, wherein the kerbstone cement mortar layer can be filled due to the connection of the kerbstone and the kerbstone concrete layer;

3) The utility model discloses a setting on construction joint and rammed earth layer does benefit to accurate control and fixed connection of actual construction.

In addition, the setting such as tamp bottom road bed, trade and fill gravel base course and subordinate's configuration gravel subbase does benefit to and accepts and adapt to upper portion load to the curb below. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary objects and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description.

Drawings

FIG. 1 is a schematic view of an installation structure of an urban road curb;

FIG. 2 is a schematic view of the middle of an urban road curb mounting structure;

fig. 3 is a side view of an urban road curb mounting structure.

Reference numerals: 1-tamping a bottom roadbed, 2-replacing and filling a gravel base layer, 3-lower-level gravel base layer, 4-upper-level gravel base layer, 5-cement concrete layer, 6-sidewalk brick layer, 7-kerb, 71-kerbstone, 72-flat kerbstone, 8-cement stabilizing gravel layer, 9-coarse-grained asphalt gravel layer, 10-medium-grained asphalt concrete layer, 11-cement mortar layer, 12-kerbstone concrete layer, 121-kerbstone concrete layer, 122-kerbstone side concrete layer, 13-kerbstone cement mortar layer, 14-fine-stone concrete layer and 15-road shoulder.

Detailed Description

Taking the construction of a certain urban main road as an example, as shown in fig. 1 to 3, an urban road curb mounting structure comprises a group of curbs 7, a sidewalk brick layer 6 or an asphalt gravel layer connected between adjacent curbs 7, and road shoulders 15 connected to two ends of the group of curbs 7; a cement concrete layer 5, a graded gravel subbase layer, a sand-gravel replacement base layer 2 and a rammed bottom roadbed 1 are sequentially connected from top to bottom below the sidewalk brick layer 6; an asphalt concrete layer, a cement stabilizing gravel layer 8, a graded gravel subbase layer, a sand gravel replacement base layer 2 and a tamping bottom roadbed 1 are sequentially connected from top to bottom below the asphalt gravel layer.

In this embodiment, the curb 7 includes a vertical curb 71 and a flat curb 72, the flat curb 72 is disposed at both ends of the set of curb 7, and the outside of the flat curb 72 is the curb 15. Curb 7 chooses for use natural stone material curb 7-granite, and sesame grey color is unified to choose for use to the colour, and linear type curb 7 and curved type curb 7 are classified into according to the linearity of curb 7, and the length of curb 7 is 75cm. At the intersection, the end part of the isolation belt and other curve sections of the kerbstone 7, the prefabricated arc-shaped kerbstone 7 must be installed and processed, and the assembly by adopting a small standard block mode of cutting the linear type kerbstone 7 is forbidden.

In this embodiment kerbstone 71 below still is provided with the kerbstone and links concrete layer 12 with the side, and the kerbstone links concrete layer 12 and includes concrete layer 121 and kerbstone side concrete layer 122 under the kerbstone, and concrete layer 121 connects between gradation gravel underlayment and vertical kerbstone 71 under the kerbstone, and kerbstone side concrete layer 122 connects between gradation gravel underlayment 71 side and gradation gravel underlayment. A lower curb cement mortar layer 13 is also arranged between the vertical curb 71 and the lower curb concrete layer 121, and the thickness of the lower curb cement mortar layer 13 is not less than 3cm; a fine stone concrete layer 14 is further arranged between the flat kerbstone 72 and the graded gravel subbase layer, and the thickness of the fine stone concrete layer 14 is not less than 4cm. A construction joint is arranged between the adjacent vertical kerbs 71 in the length direction of the road, the width of the construction joint is not more than 10mm, and a construction joint is arranged between the adjacent horizontal kerbs 72 in the length direction of the road and is not more than 3mm.

In the embodiment, the kerbstone 7 is compacted by adopting M10 cement mortar for crack pouring, the normal-temperature maintenance is not less than 3d after the crack pouring, and the surface of the plane stone is smooth and does not block water. The kerbstone 7 is stable in masonry, clean in exposed surface and smooth in lines, and a cement concrete backrest is arranged behind the back of the kerbstone 7. The allowable deviation of the installation of the curb 7 is required to meet the relevant regulations.

In this embodiment, the gradation gravel base layer includes that lower gradation gravel base layer 3 and higher level gravel base layer 4 are joined in the lower level gravel base layer 3 is connected in pavement brick layer 6 and pitch gravel layer below, and higher level gravel base layer 4 is connected in pavement brick layer 6 below. A cement mortar layer 11 is arranged between the sidewalk brick layer 6 and the cement concrete layer 5, the thickness of the cement mortar layer 11 is not less than 3cm, and the thickness of the cement concrete layer 5 is not less than 15cm.

In this embodiment, asphalt concrete layer includes coarse grain formula asphalt gravel layer 9 and well grain formula asphalt concrete layer 10, and well grain formula asphalt concrete layer 10 is located coarse grain formula asphalt gravel layer 9 top, still is provided with synchronous rubble seal between coarse grain formula asphalt gravel layer 9 and the cement stabilization sand gravel layer 8, and 1cm is no less than to synchronous rubble seal.

In this embodiment, the curb 7 near one side of the green belt is further provided with a soil returning tamping layer, the width of the soil returning tamping layer is not less than 50cm, the height of the soil returning tamping layer is flush with the top of the backrest of the cement concrete layer 5, the degree of compaction of the soil returning tamping layer is not less than 90%, and the soil returning is planting soil.

During construction, the curb 7 is laid, firstly measures lofting: and positioning by using a level, arranging a positioning control pile in the straight line section of 10 to 15 meters, arranging a positioning control pile in the curved line section of every 5 to 10m, arranging a positioning pile in the intersection of every 5m, and arranging a height control line on the pile by using the level. The masonry kerb 7 is stable in mortar filling and building according to the type of mortar required by design, the mortar is full and uniform in thickness, and the mortar is suitable for dry and hard mortar. The straight line section of the gap width is +/-3 mm, the height difference between two adjacent gaps is 3mm, all the crack pouring needs to be finished by pulling and pressing a jointing trowel made of steel bars, and the depth of the concave joint is consistent. After the kerbstone 7 is laid, watering and maintaining for not less than 3 days, and preventing collision.

The kerbstone 7 is stable to build, straight line segments, uniform gaps, compact crack pouring, and smooth and water-free surface of the flat kerbstone 72. The whole construction is firstly carried out by installing the kerbstone 7 and then is carried out by cement to stabilize the gravel base layer and the asphalt pavement, the installation of the kerbstone 7 is firstly carried out by installing the plain kerbstone 72 and then the vertical kerbstone 71. The back of the curb 7 is provided with a backrest which is used as a support and is filled with cement concrete together with the groove, and the gap of the groove is embedded and supplemented with cement concrete without installing a flat stone outside the curb 7.

In order to reduce the stubble, the construction of a full-width paving and a prolonged paving section is adopted, only transverse stubbles are left, longitudinal stubbles are not left, the old material is planed before the new material is paved, the vertical stubbles and the rough stubbles are connected, the cement paste is properly coated on the old stubbles, and the rolling is strengthened at the stubble connecting position during the rolling. Avoiding longitudinal seam processing.

However, when two frames of construction are required, two adjacent frames are overlapped by 30cm. When transverse stubbles are left on the upper layer and the lower layer simultaneously, the difference distance between the two layers is reduced as much as possible, and the difference distance between the two layers is preferably 1 m; and a reserved stubble ditch is arranged after rolling, the outer part of the reserved ditch is shoveled and cleaned before next spreading, then the spreading construction is carried out, the rolling is strengthened when the paved reserved stubble section is rolled, and the integral flatness meets the design requirement.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be considered by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.

Claims (9)

1. An urban road curb mounting structure is characterized by comprising a group of curbs (7), a sidewalk brick layer (6) or an asphalt gravel layer connected between adjacent curbs (7), and curbs (15) connected to two ends of the group of curbs (7);

a cement concrete layer (5), a graded gravel subbase layer, a sand-gravel replacement base layer (2) and a tamping bottom roadbed (1) are sequentially connected below the sidewalk brick layer (6) from top to bottom;

the lower part of the asphalt gravel layer is sequentially connected with an asphalt concrete layer, a cement stabilizing gravel layer (8), a graded gravel subbase layer, a sand-gravel changing base layer (2) and a tamping bottom roadbed (1) from top to bottom.

2. An urban road curb installation structure as claimed in claim 1, characterized in that the curb (7) comprises a vertical curb (71) and a flat curb (72), the flat curb (72) is disposed at both ends of a set of curbs (7), and a shoulder (15) is outside the flat curb (72).

3. An urban road kerb installation structure according to claim 1, characterized in that the graded gravel sub-base comprises a lower graded gravel sub-base (3) and an upper graded gravel sub-base (4), the lower graded gravel sub-base (3) being connected below the sidewalk brick layer (6) and the asphalt gravel layer, the upper graded gravel sub-base (4) being connected below the sidewalk brick layer (6).

4. An urban road curb installation structure as claimed in claim 1 wherein, be provided with cement mortar layer (11) between said layer of sidewalk bricks and cement concrete layer (5), said cement mortar layer (11) thickness is no less than 3cm, cement concrete layer (5) thickness is no less than 15cm.

5. An urban road curb installation structure as claimed in claim 1 wherein the asphalt concrete layer comprises coarse asphalt gravel layer (9) and medium asphalt concrete layer (10), the medium asphalt concrete layer (10) is located above the coarse asphalt gravel layer (9), and a synchronous gravel seal is further provided between the coarse asphalt gravel layer (9) and the cement stabilized gravel layer (8), the synchronous gravel seal is not less than 1cm.

6. An urban road kerb installation structure according to claim 2, wherein a kerb continuous concrete layer (12) is further provided below and to the side of the kerb (71), the kerb continuous concrete layer (12) comprises a kerb lower concrete layer (121) and a kerb side concrete layer (122), the kerb lower concrete layer (121) is connected between the graded gravel sub-base layer and the kerb (71), and the kerb side concrete layer (122) is connected between the side of the kerb (71) and the graded gravel sub-base layer.

7. An urban road curbstone mounting structure according to claim 6, wherein a curbstone cement mortar layer (13) is further provided between the curbstone (71) and the curbstone concrete layer (121), the thickness of the curbstone cement mortar layer (13) being not less than 3cm; still be provided with fine stone concrete layer (14) between plain kerbstone (72) and the gradation gravel subbase, fine stone concrete layer (14) thickness is no less than 4cm.

8. An urban road curb installation structure as claimed in claim 2 wherein a construction joint is provided between adjacent vertical curbs (71) in the longitudinal direction of the road and the construction joint width is not more than 10mm, and a construction joint is provided between adjacent horizontal curbs (72) in the longitudinal direction of the road and the construction joint width is not more than 3mm.

9. The urban road curbstone installation structure according to claim 1, wherein the curbstone (7) near the green belt side is further provided with a repayment rammed layer, the repayment rammed layer has a width of not less than 50cm and a height flush with a back rest top of the cement concrete layer (5), and the repayment rammed layer has a degree of compaction of not less than 90%.

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