Connecting structure of pedestrian ramp and motor vehicle lane at intersection

Abstract

The utility model discloses a connecting structure of a pedestrian ramp and a motorway at an intersection, and belongs to the technical field of municipal road construction. The structure comprises a soil base, a motorway, a curb assembly and a pedestrian ramp, wherein the motorway and the pedestrian ramp are both arranged on the soil base; the motor vehicle lane comprises a graded broken stone layer, a stabilized broken stone layer A, a stabilized broken stone layer B, a sealing layer, an asphalt stabilized broken stone layer, an asphalt concrete layer A and an asphalt concrete layer B which are sequentially arranged from bottom to top. The curb assembly is arranged on the stabilized macadam layer A. One side of the curb assembly is connected with the stabilized macadam layer B, the sealing layer, the asphalt stabilized macadam layer, the asphalt concrete layer A and the asphalt concrete layer B, and the other side of the curb assembly is connected with the lower end of the pedestrian ramp. The stabilized macadam layer B, the sealing layer, the asphalt stabilized macadam layer, the asphalt concrete layer A and the asphalt concrete layer B in the motor vehicle lane are all paved to the curb assembly, so that the structure of the motor vehicle lane is simplified, and the construction efficiency of the motor vehicle lane is improved.

Description

Technical Field

[0001] The utility model relates to a connection structure of a pedestrian ramp and a motor vehicle lane at a road intersection, belonging to the technical field of municipal road construction. Background Art

[0002] During the construction of municipal roads, pedestrian ramps are usually set up at intersections to connect the motor vehicle lanes and sidewalks to facilitate pedestrians, non-motor vehicles, etc. to cross the motor vehicle lanes.

[0003] The Chinese patent document with publication number CN215329102U discloses a sidewalk-to-motor vehicle road surface structure, including a reconstructed sidewalk and a reconstructed motor vehicle road, wherein the reconstructed motor vehicle road comprises, from bottom to top, a stone powder slag cushion layer, a C35 reinforced concrete layer, a permeable layer, a modified emulsified asphalt slurry seal layer, an SBS modified medium-grained asphalt concrete layer, an adhesive layer, and a rubber-modified fine-grained asphalt concrete layer, wherein a 200mm×200mm steel mesh is provided in the C35 reinforced concrete layer, and the diameter of the steel bar is 14mm. In the process of expanding the motor vehicle road, a 15cm thick C20 permeable cement concrete base layer was poured in the area of ​​the original sidewalk, and in particular, a steel mesh was provided in the C35 reinforced concrete layer, which greatly improved the bearing capacity of the road foundation, made the road surface more stable and firm, and solved the problem of the road surface being prone to collapse after the sidewalk was reconstructed into the motor vehicle road surface structure.

[0004] However, the permeable layer, modified emulsified asphalt slurry seal layer, SBS modified medium-grained asphalt concrete layer, bonding layer and rubber-modified fine-grained asphalt concrete layer of the renovated motor vehicle lane are constructed separately from the 3 cm thick stone concrete leveling layer, 3 cm thick mortar layer and flat curb, resulting in a complex structure of the renovated motor vehicle lane and low construction efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a connection structure between a pedestrian ramp and a motor vehicle lane at an intersection.

[0006] The utility model is realized through the following technical solutions:

[0007] A connection structure of a pedestrian ramp and a motor vehicle lane at an intersection, comprising a soil base, a motor vehicle lane, a curb assembly and a pedestrian ramp, wherein the motor vehicle lane and the pedestrian ramp are both arranged on the soil base;

[0008] The motor vehicle lane comprises a graded crushed stone layer, a stabilized crushed stone layer A, a stabilized crushed stone layer B, a sealing layer, an asphalt stabilized crushed stone layer, an asphalt concrete layer A and an asphalt concrete layer B arranged in sequence from bottom to top;

[0009] The curb assembly is arranged on the stable gravel layer A, one side of the curb assembly is connected with the stable gravel layer B, the seal layer, the asphalt stable gravel layer, the asphalt concrete layer A and the asphalt concrete layer B, and the other side is connected with the lower end of the pedestrian ramp.

[0010] The compaction degree of the soil base at the lower side of the motor vehicle lane is not less than 96%.

[0011] An anti-seepage geotextile is laid at the soil foundation excavation line on the side of the motor vehicle lane close to the pedestrian ramp.

[0012] The stable gravel layer A is a 3.5% cement-stabilized gravel layer, and the stable gravel layer B is a 5% cement-stabilized gravel layer.

[0013] The seal is an ES-3 type slurry seal.

[0014] The asphalt stabilized gravel layer is an ATB25 asphalt stabilized gravel layer.

[0015] The asphalt concrete layer A is a medium-grained 4% SBS modified asphalt concrete layer, and the asphalt concrete layer B is a fine-grained SBS modified asphalt concrete layer.

[0016] The top surface of the curb assembly is higher than the top surface of the motor vehicle lane, and the distance from the top surface of the curb assembly to the top surface of the motor vehicle lane is no more than 1 cm. The elevation of the top surface of the curb assembly is consistent with the elevation of the lower end of the top surface of the pedestrian ramp.

[0017] The curb assembly includes a C15 fine stone cement concrete base, a granite curbstone and a C15 fine stone cement concrete back seat. The granite curbstone is arranged on the C15 fine stone cement concrete base through a cement mortar layer. The C15 fine stone cement concrete back seat is arranged on the C15 fine stone cement concrete base and is arranged close to the pedestrian ramp.

[0018] The compaction degree of the soil foundation at the lower side of the pedestrian ramp is not less than 90%, and the pedestrian ramp includes a permeable cement stabilized gravel layer, a dry hard cement mortar layer and a permeable brick layer which are arranged in sequence from bottom to top.

[0019] The beneficial effect of the utility model is that the stabilized gravel layer B, the sealing layer, the asphalt stabilized gravel layer, the asphalt concrete layer A and the asphalt concrete layer B in the motor vehicle lane are all paved to the curb assembly, which simplifies the structure of the motor vehicle lane and helps to improve the construction efficiency of the motor vehicle lane. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] In the figure: 1-motor vehicle lane, 10-graded crushed stone layer, 11-stabilized crushed stone layer A, 12-stable crushed stone layer B, 13-sealing layer, 14-asphalt stabilized crushed stone layer, 15-asphalt concrete layer A, 16-asphalt concrete layer B, 17-anti-seepage geotextile, 2-curb assembly, 20-C15 fine stone cement concrete base, 21-cement mortar layer, 22-granite curb stone, 23-C15 fine stone cement concrete back seat, 3-pedestrian ramp, 30-permeable cement stabilized crushed stone layer, 31-dry hard cement mortar layer, 32-permeable brick layer, 4-soil base. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0023] like Figure 1 As shown, the connection structure of a pedestrian ramp and a motor vehicle lane at an intersection described in the utility model is characterized by comprising a soil base 4, a motor vehicle lane 1, a curb assembly 2 and a pedestrian ramp 3, wherein the motor vehicle lane 1 and the pedestrian ramp 3 are both arranged on the soil base 4;

[0024] The motor vehicle lane 1 includes a graded crushed stone layer 10, a stabilized crushed stone layer A11, a stabilized crushed stone layer B12, a sealing layer 13, an asphalt stabilized crushed stone layer 14, an asphalt concrete layer A15 and an asphalt concrete layer B16 arranged in sequence from bottom to top;

[0025] The curb assembly 2 is arranged on the stable gravel layer A11, one side of the curb assembly 2 is connected with the stable gravel layer B12, the sealing layer 13, the asphalt stable gravel layer 14, the asphalt concrete layer A15 and the asphalt concrete layer B16, and the other side is connected with the lower end of the pedestrian ramp 3.

[0026] When in use, the stabilized gravel layer B12, sealing layer 13, asphalt stabilized gravel layer 14, asphalt concrete layer A15 and asphalt concrete layer B16 in the motor vehicle lane 1 are all paved to the curb component 2, eliminating the 3 cm thick stone concrete leveling layer, 3 cm thick mortar layer and flat curb in the prior art, simplifying the structure of the motor vehicle lane 1 and helping to improve the construction efficiency of the motor vehicle lane 1.

[0027] The compaction degree of the soil base 4 at the lower side of the motor vehicle road 1 is not less than 96%.

[0028] An anti-seepage geotextile 17 is laid at the excavation line of the soil foundation 4 on the side of the motor vehicle lane 1 close to the pedestrian ramp 3.

[0029] The stabilized gravel layer A11 is a 3.5% cement stabilized gravel layer, and the stabilized gravel layer B12 is a 5% cement stabilized gravel layer.

[0030] The seal layer 13 is an ES-3 type slurry seal layer.

[0031] The asphalt stabilized gravel layer 14 is an ATB25 asphalt stabilized gravel layer.

[0032] The asphalt concrete layer A15 is a medium-grained 4% SBS modified asphalt concrete layer, and the asphalt concrete layer B16 is a fine-grained SBS modified asphalt concrete layer.

[0033] The top surface of the curb component 2 is higher than the top surface of the motor vehicle lane 1, and the distance from the top surface of the curb component 2 to the top surface of the motor vehicle lane 1 is no more than 1 cm. The elevation of the top surface of the curb component 2 is consistent with the elevation of the lower end of the top surface of the pedestrian ramp 3.

[0034] The curb assembly 2 includes a C15 fine stone cement concrete base 20, a granite curb 22 and a C15 fine stone cement concrete back seat 23. The granite curb 22 is arranged on the C15 fine stone cement concrete base 20 through a cement mortar layer 21. The C15 fine stone cement concrete back seat 23 is arranged on the C15 fine stone cement concrete base 20 and is arranged close to the pedestrian ramp 3.

[0035] The compaction degree of the soil base 4 at the lower side of the pedestrian ramp 3 is not less than 90%, and the pedestrian ramp 3 includes a permeable cement stabilized gravel layer 30, a dry hard cement mortar layer 31 and a permeable brick layer 32 arranged in sequence from bottom to top. When in use, the slope of the pedestrian ramp 3 is ≤1:12.

Claims

1. A connection structure between a pedestrian ramp and a motor vehicle lane at an intersection, characterized in that: It comprises a soil base (4), a motor vehicle lane (1), a curb assembly (2) and a pedestrian ramp (3), wherein the motor vehicle lane (1) and the pedestrian ramp (3) are both arranged on the soil base (4); The motor vehicle road (1) comprises, arranged in order from bottom to top, a graded crushed stone layer (10), a stabilized crushed stone layer A (11), a stabilized crushed stone layer B (12), a sealing layer (13), an asphalt stabilized crushed stone layer (14), an asphalt concrete layer A (15) and an asphalt concrete layer B (16); The curb assembly (2) is arranged on a stable crushed stone layer A (11), one side of the curb assembly (2) is connected to a stable crushed stone layer B (12), a sealing layer (13), an asphalt stable crushed stone layer (14), an asphalt concrete layer A (15) and an asphalt concrete layer B (16), and the other side of the curb assembly (2) is connected to the lower end of a pedestrian ramp (3).

2. The connection structure of the pedestrian ramp and the motor vehicle lane at the intersection as claimed in claim 1, characterized in that: The compaction degree of the soil base (4) at the lower side of the motor vehicle road (1) is not less than 96%.

3. The connection structure of the pedestrian ramp and the motor vehicle lane at the intersection as claimed in claim 1, characterized in that: An anti-seepage geotextile (17) is laid at the excavation line of the soil foundation (4) on one side of the motor vehicle lane (1) close to the pedestrian ramp (3).

4. The connection structure of the pedestrian ramp and the motor vehicle lane at the intersection as claimed in claim 1, characterized in that: The stable gravel layer A (11) is a 3.5% cement stable gravel layer; the stable gravel layer B (12) is a 5% cement stable gravel layer.

5. The connection structure of the pedestrian ramp and the motor vehicle lane at the intersection as claimed in claim 1, characterized in that: The sealing layer (13) is an ES-3 type slurry sealing layer.

6. The connection structure of the pedestrian ramp and the motor vehicle lane at the intersection as claimed in claim 1, characterized in that: The asphalt-stabilized gravel layer (14) is an ATB25 asphalt-stabilized gravel layer.

7. The connection structure of the pedestrian ramp and the motor vehicle lane at the intersection as claimed in claim 1, characterized in that: The asphalt concrete layer A (15) is a medium-grained 4% SBS modified asphalt concrete layer; the asphalt concrete layer B (16) is a fine-grained SBS modified asphalt concrete layer.

8. The connection structure of the pedestrian ramp and the motor vehicle lane at the intersection as claimed in claim 1, characterized in that: The top surface of the curb component (2) is higher than the top surface of the motor vehicle lane (1), and the distance between the top surface of the curb component (2) and the top surface of the motor vehicle lane (1) is no more than 1 cm; the elevation of the top surface of the curb component (2) is consistent with the elevation of the lower end of the top surface of the pedestrian ramp (3).

9. The connection structure of the pedestrian ramp and the motor vehicle lane at the intersection as claimed in claim 1, characterized in that: The curb assembly (2) comprises a C15 fine stone cement concrete base (20), a granite curb (22) and a C15 fine stone cement concrete back seat (23), wherein the granite curb (22) is arranged on the C15 fine stone cement concrete base (20) via a cement mortar layer (21), and the C15 fine stone cement concrete back seat (23) is arranged on the C15 fine stone cement concrete base (20) and is arranged close to a pedestrian ramp (3).

10. The connection structure of the pedestrian ramp and the motor vehicle lane at the intersection as claimed in claim 1, characterized in that: The compaction degree of the soil base (4) at the lower side of the pedestrian ramp (3) is not less than 90%, and the pedestrian ramp (3) comprises a permeable cement-stabilized gravel layer (30), a dry hard cement mortar layer (31) and a permeable brick layer (32) which are arranged in sequence from bottom to top.

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