Intersection diversion structure of middle division zone integrated sidewalk and construction technology of intersection diversion structure

Abstract

The invention relates to the technical field of urban road engineering design, and discloses an intersection diversion structure of a middle division zone integrated sidewalk and a construction technology of the intersection diversion structure. The bridge piers are symmetrically arranged at the bottom of the elevated main line; the median strip inner sidewalk is arranged at the bottom of the elevated main line and located between the two bridge piers; a rest platform and a drainage well are arranged in a matched mode and used for replacing traditional sidewalk layouts on the two sides. The sidewalk and the motorway guardrail are symmetrically arranged on the two sides of the sidewalk in the middle division zone; the motor vehicle lanes of the ground road are symmetrically arranged on the two sides of the sidewalk in the middle division zone; and the non-motorized vehicle lanes are arranged on one side of the motorized vehicle lane of the ground road. According to the invention, people flow is evacuated orderly, passing conflicts between pedestrians and motor vehicles are reduced, and the crossing safety of the pedestrians is guaranteed; the anti-skid floor tile can still guarantee good anti-skid performance in a humid environment, and the risk that pedestrians fall down is further reduced.

Description

Technical Field

[0001] This invention relates to the field of urban road engineering design technology, and more specifically, to a traffic diversion structure with a median strip integrated with a sidewalk at an intersection and its construction process. Background Technology

[0002] In urban expressways, the combination of elevated main lines and ground-level auxiliary roads is widely used. The elevated main lines handle long-distance, high-speed traffic, while the ground-level auxiliary roads provide regional connections. Currently, most slow-traffic systems adopt the traditional "sidewalks on both sides" design, placing the sidewalks on the outer edge of the auxiliary roads.

[0003] In sections where land is scarce on both sides of the auxiliary road, the traditional design has obvious defects: the sidewalks on both sides are underutilized, idle space is wasted, and the width of the auxiliary road is encroached upon, exacerbating the conflict between motor vehicles and non-motor vehicles and affecting the efficiency of motor vehicle traffic; at the same time, slow traffic and motor vehicles frequently interfere with each other laterally, posing safety hazards.

[0004] Existing median strips on elevated auxiliary roads mostly serve only as green spaces or crash barriers, with limited functionality. While some existing technologies mention pedestrian walkways in the median strip, these are designed for ordinary surface roads and are not adapted to the traffic environment under elevated roads. Furthermore, they fail to address the issue of traffic flow separation at intersections, easily leading to congestion and conflicts. Additionally, they lack a design that integrates elevated road rainwater with surface drainage, resulting in unreasonable rainwater discharge paths. Current designs also struggle to balance vehicular efficiency, pedestrian safety, and drainage needs, necessitating a simplified solution adapted to specific scenarios.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Summary of the Invention

[0006] In response to the problems in related technologies, this invention proposes an intersection diversion structure with a median strip integrated with a pedestrian walkway and its construction process to overcome the aforementioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by the present invention is as follows: According to one aspect of the present invention, a traffic diversion structure with an integrated pedestrian walkway in the median strip is provided, comprising: an elevated main line; bridge piers symmetrically arranged at the bottom of the elevated main line; a pedestrian walkway in the median strip, located at the bottom of the elevated main line and between two bridge piers; equipped with rest platforms and drainage wells to replace the traditional sidewalk layout; guardrails for the pedestrian walkway and motor vehicle lanes symmetrically arranged on both sides of the pedestrian walkway in the median strip; motor vehicle lanes of the ground road symmetrically arranged on both sides of the pedestrian walkway in the median strip; non-motor vehicle lanes, all located on one side of the motor vehicle lanes of the ground road; and motor vehicle and non-motor vehicle separation guardrails, all located between the motor vehicle lanes and non-motor vehicle lanes of the ground road, wherein the motor vehicle and non-motor vehicle separation guardrails are corrugated beam guardrails made of Q235 steel.

[0008] Furthermore, the distance between the two bridge piers is 30 to 35 meters, the cross-sectional dimensions of the bridge piers are 1.2 meters × 0.8 meters, and the horizontal distance between the edge of the bridge pier and the sidewalk in the median strip is not less than 1.5 meters, so as to avoid interfering with pedestrian traffic.

[0009] Furthermore, the width of the sidewalk within the median strip is 3 to 5 meters, and a green isolation belt of 1 to 1.5 meters is reserved on both sides of the sidewalk 3 within the median strip.

[0010] Furthermore, a rest platform is provided every 200 to 300 meters along the pedestrian walkway in the median strip. The width of the rest platform is 1 to 3 meters and the length is 2 to 3 meters. The manhole covers are made of ductile iron and have anti-slip textures and drainage holes on their surface.

[0011] Furthermore, the sidewalk in the median strip uses a combination structure of C30 fine stone concrete base and 10 cm thick anti-slip and wear-resistant through-body bricks, with the anti-slip and wear-resistant through-body bricks measuring 300 mm × 300 mm and their surface treated with grooves for anti-slip properties.

[0012] Furthermore, the height of the non-motorized vehicle separation guardrail is 1.2 meters, the spacing between guardrail posts is 2 meters, the burial depth of the guardrail posts is 0.6 meters, and the horizontal load resistance is not less than 10 kN / m.

[0013] Furthermore, the non-motorized vehicle lane is arranged along the outer edge of the motorized vehicle lane on the ground road, and the width of the non-motorized vehicle lane is 2.5 meters to 3 meters.

[0014] Furthermore, all motor vehicle lanes on the ground roads are two-way lanes, and each lane is 3.5 to 3.75 meters wide.

[0015] Furthermore, the elevated main line is equipped with drainage pipes, and the outlet of the drainage pipes is 0.5 to 0.8 meters above the ground of the pedestrian walkway 3 in the median strip to avoid rainwater splashing and affecting pedestrians.

[0016] According to another aspect of the present invention, a construction process for a median strip integrated pedestrian crossing intersection diversion structure is also provided, the construction process comprising the following steps: S1. Level the median strip area of ​​the auxiliary road and compact the base. Pour an 18cm thick C30 fine stone concrete base and set a 2‰ transverse drainage slope for the base. Locate the rest platform positions at intervals of 200 to 300 meters, excavate drainage well pits with a diameter of 30 cm, lay DN200 drainage branch pipes, and connect the drainage branch pipes to the original drainage system of the auxiliary road to form a drainage passage. S2. After the C30 fine stone concrete base layer is cured, lay 300 mm × 300 mm, 10 cm thick anti-slip and wear-resistant through-body bricks in the median strip area. The surface of the bricks is grooved for anti-slip treatment, with a groove depth of 1.0 mm to 1.5 mm and a groove spacing of 20 mm. Install simple rest facilities at the rest platform location, set up small drainage wells and install ductile iron manhole covers with anti-slip textures and drainage holes on the surface of the manhole covers. Install drainage pipes at the pre-set positions on the elevated main line bridge deck, so that the drainage pipe outlet is 0.5 m to 0.8 m above the ground of the sidewalk in the median strip, and the drainage pipe is vertically aligned with the drainage well in the rest platform. Install motor vehicle and non-motor vehicle separation guardrails between the motor vehicle lanes and non-motor vehicle lanes on the ground road, and install sidewalk and motor vehicle lane guardrails between the sidewalk in the median strip and the motor vehicle lanes on the ground road. S3. Pedestrian crossings shall be marked at the intersections of ground-level auxiliary roads and intersecting roads. The width of the pedestrian crossings shall be 4 to 5 meters, and the length shall match the width of the intersection. The spacing between pedestrian crossing lines shall be 0.6 meters. White hot-melt paint shall be used to spray guide lines on the motor vehicle lanes of the ground-level roads at the intersections. The paint thickness shall be 1.8 mm to 2.5 mm to ensure that the reflectivity of the guide lines is greater than or equal to 150 mcd・lx⁻¹・m⁻¹. Pedestrians on the sidewalks in the median strip shall be directly diverted to the sides of the current auxiliary road or the sides of the intersecting road through the pedestrian crossings at the intersections, so as to achieve orderly evacuation of pedestrians.

[0017] The beneficial effects of this invention are as follows: (1) The present invention places the sidewalk in the median strip, making use of idle space, and the setting of green isolation belt improves the road landscape effect; the width of the motor vehicle lane is guaranteed, effectively reducing the conflict between motor vehicles and non-motor vehicles, and significantly improving the traffic efficiency of motor vehicles on the ground auxiliary road; the width of the non-motor vehicle lane is sufficient to meet the traffic needs of non-motor vehicles during peak hours, and the "pedestrian crossing plus guide markings" diversion structure at the intersection simplifies the design while realizing the orderly evacuation of pedestrians, reducing the conflict between pedestrians and motor vehicles, and ensuring the safety of pedestrians crossing the street; the anti-slip paving bricks can still maintain good anti-slip performance in a wet environment, further reducing the risk of pedestrians falling.

[0018] (2) The present invention uses the directional drainage path of the elevated-rest platform-ground drainage system to quickly discharge rainwater from the elevated structure during heavy rain, and there is no water accumulation on the sidewalk and rest platform. The drainage path is centralized and clear, making later maintenance convenient. The structure is simple, the construction process is standardized, and the construction cycle is shortened. The anti-slip through-body brick has strong wear resistance and good anti-aging performance. The drainage system structure is centralized, the service life of the sidewalk surface is long, and the later maintenance cost is low. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the intersection traffic diversion structure of the median strip integrated pedestrian walkway according to an embodiment of the present invention; Figure 2 This is a flowchart of the construction process of the intersection traffic diversion structure with integrated pedestrian walkway in the median strip according to an embodiment of the present invention.

[0021] In the picture: 1. Elevated main line; 2. Bridge piers; 3. Pedestrian walkway in the median strip; 4. Guardrail between pedestrian walkway and motor vehicle lane; 5. Motor vehicle lane of the ground road; 6. Non-motor vehicle lane; 7. Guardrail separating motor vehicles and non-motor vehicles. Detailed Implementation

[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] According to an embodiment of the present invention, a traffic diversion structure with a median strip integrated pedestrian walkway and its construction process are provided at an intersection.

[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1As shown, the intersection traffic diversion structure of the median integrated pedestrian walkway according to an embodiment of the present invention includes: an elevated main line 1; a drainage pipe is provided on the bridge deck of the elevated main line 1, and the outlet of the drainage pipe is 0.5 meters to 0.8 meters above the ground of the pedestrian walkway 3 in the median strip to avoid rainwater splashing and affecting pedestrians; piers 2, symmetrically arranged at the bottom of the elevated main line 1; the distance between two piers 2 is 30 meters to 35 meters, the cross-sectional dimensions of the piers 2 are 1.2 meters × 0.8 meters, and the horizontal distance between the edge of the piers 2 and the pedestrian walkway 3 in the median strip is not less than 1.5 meters to avoid... To avoid interfering with pedestrian traffic, the median strip pedestrian walkway 3 is located at the bottom of the elevated main line 1, between two bridge piers 2. It is equipped with rest platforms and drainage wells, replacing the traditional sidewalk layout. The width of the median strip pedestrian walkway 3 is 3 to 5 meters, and a 1- to 1.5-meter-wide green isolation belt is reserved on both sides of the median strip pedestrian walkway 3. A rest platform is provided every 200 to 300 meters on the median strip pedestrian walkway 3, with a width of 1 to 3 meters and a length of 2 to 3 meters. The drainage well covers are made of ductile iron. The manhole cover is made of high-quality cement and features anti-slip textures and drainage holes. The sidewalk 3 within the median strip uses a combination of C30 fine aggregate concrete base and 10cm thick anti-slip and wear-resistant through-body bricks, each 300mm x 300mm in size, with a grooved anti-slip surface. Sidewalk and vehicle lane guardrails 4 are symmetrically positioned on both sides of the sidewalk 3 within the median strip. The ground-level road's vehicle lanes 5 are symmetrically positioned on both sides. All vehicle lanes 5 are two-way lanes, with each lane ranging from 3.5 meters to 3.75 meters in width. Non-motorized vehicle lanes 6 are all located on one side of the motorized vehicle lanes 5 on the ground road. Non-motorized vehicle lanes 6 are arranged along the outer edge of the motorized vehicle lanes 5 on the ground road, and the width of non-motorized vehicle lanes 6 is 2.5 meters to 3 meters. Motorized and non-motorized vehicle separation guardrails 7 are all located between the motorized vehicle lanes 5 and non-motorized vehicle lanes 6 on the ground road. Motorized and non-motorized vehicle separation guardrails 7 are corrugated beam guardrails, and their material is Q235 steel. The height of motorized and non-motorized vehicle separation guardrails 7 is 1.2 meters, the spacing between guardrail posts is 2 meters, the burial depth of guardrail posts is 0.6 meters, and the horizontal load resistance is not less than 10 kN / m.

[0025] Specifically, the elevated main line 1 is erected above the ground auxiliary road. The piers 2 of the elevated main line 1 are spaced 30-35m apart. The cross-sectional dimensions of the piers 2 are 1.2m × 0.8m. The horizontal distance between the edge of the pier 2 and the main body of the median pedestrian walkway is not less than 1.5m to avoid interfering with pedestrian passage. Rainwater from the elevated bridge surface is diverted to the rest platform area of ​​the median pedestrian walkway through drainage pipes. The height of the drainage pipe outlet from the pedestrian walkway ground is controlled at 0.5-0.8m to avoid rainwater splashing and affecting pedestrians.

[0026] Specifically, the ground auxiliary road (i.e., motor vehicle lane 5 of the ground road) is a two-way lane with a single lane width of 3.5-3.75m. The width of the median strip area between the two-way auxiliary roads is 6-10m. The main width of the median strip sidewalk is 3-5m. A 1-1.5m wide green isolation belt is reserved on both sides of the main sidewalk, which has both protection and noise reduction functions.

[0027] Specifically, a rest platform is set every 200-300m along the main body of the median sidewalk 3. The platform is 1-3m wide and 2-3m long, with simple rest facilities on both sides and a 2-3m passageway reserved in the middle to meet both rest and passage needs. The sidewalk surface is made of C30 fine stone concrete base (18cm thick) plus 10cm thick anti-slip and wear-resistant solid brick structure. The brick size is 300mm×300mm, and the surface is treated with grooved anti-slip treatment (groove depth 1.0-1.5mm, groove spacing 20mm). The anti-slip coefficient is ≥0.6 (dry state) and ≥0.45 (wet state). It meets the requirements of GB / T4100-2015 "Ceramic Tiles" and CJJ1-2008 "Code for Construction and Quality Acceptance of Urban Road Engineering" after testing.

[0028] Specifically, each rest platform is equipped with 1-2 small drainage wells with a diameter of 30cm. The drainage well covers are made of ductile iron with a load-bearing capacity of ≥C250 (meeting the GB / T23858-2009 "Inspection Well Cover" standard). The surface of the well cover is equipped with anti-slip texture and drainage holes (hole diameter 5-8mm, hole spacing 50mm). The bottom of the drainage well is connected to the original drainage system of the ground auxiliary road through a DN200 drainage branch pipe, forming a dedicated drainage path from the elevated bridge surface drain pipe to the rest platform drainage well and then to the ground drainage system.

[0029] Specifically, a 1.2m high corrugated beam guardrail (made of Q235 steel, with a guardrail post spacing of 2m and a post burial depth of 0.6m) is installed between the motor vehicle lane 5 and the non-motor vehicle lane 6 on the ground road. The guardrail has a horizontal load resistance of ≥10kN / m and has been verified by collision test to meet the requirements of JTGD81-2017 "Design Specification for Highway Traffic Safety Facilities"; the non-motor vehicle lane 6 is arranged along the outer edge of the auxiliary road with a width of 2.5-3m, making use of the unused space on both sides to ensure the passage width.

[0030] Specifically, the traffic diversion structure is located at the intersection of the ground auxiliary road and the intersecting road. It adopts a combination design of pedestrian crossings and guide markings. The width of the pedestrian crossing is 4-5m, and the length matches the width of the intersection. The spacing between pedestrian crossing lines is 0.6m. The guide markings use white hot-melt paint (thickness 1.8-2.5mm) with a reflectivity ≥150mcd・lx⁻¹・m⁻¹. The pedestrian crossings at the intersection directly divert pedestrians on the sidewalk 3 in the median strip to both sides of the current auxiliary road or the intersecting road, so as to achieve orderly evacuation of pedestrians.

[0031] According to another embodiment of the invention, such as Figure 2 As shown, a construction process for an intersection traffic diversion structure with a median strip integrated pedestrian walkway is also provided. This construction process includes the following steps: S1. Level the median strip area of ​​the auxiliary road and compact the base. Pour an 18cm thick C30 fine stone concrete base and set a 2‰ transverse drainage slope for the base. Locate the rest platform positions at intervals of 200 to 300 meters, excavate drainage well pits with a diameter of 30 cm, lay DN200 drainage branch pipes, and connect the drainage branch pipes to the original drainage system of the auxiliary road to form a drainage passage. S2. After the C30 fine stone concrete base layer is cured, lay 300 mm × 300 mm, 10 cm thick anti-slip and wear-resistant through-body bricks in the median strip area. The surface of the bricks is grooved for anti-slip treatment, with a groove depth of 1.0 mm to 1.5 mm and a groove spacing of 20 mm. Install simple rest facilities at the rest platform location, set up small drainage wells and install ductile iron manhole covers with anti-slip textures and drainage holes on the surface of the manhole covers. Install drainage pipes at the preset positions on the bridge deck of the elevated main line 1, so that the drainage pipe outlet is 0.5 m to 0.8 m above the ground of the pedestrian walkway 3 in the median strip, and the drainage pipe is vertically aligned with the drainage well in the rest platform. Install motor vehicle and non-motor vehicle separation guardrails 7 between the motor vehicle lane 5 and the non-motor vehicle lane 6 of the ground road, and install pedestrian and motor vehicle lane guardrails 4 between the pedestrian walkway 3 in the median strip and the motor vehicle lane 5 of the ground road. S3. At the intersection of the ground auxiliary road and the intersecting road, a pedestrian crossing shall be marked. The width of the pedestrian crossing shall be 4 to 5 meters, and the length shall match the width of the intersection. The spacing between the pedestrian crossing lines shall be 0.6 meters. White hot melt paint shall be used to spray the guide markings on the motor vehicle lane 5 of the ground road at the intersection. The paint thickness shall be 1.8 mm to 2.5 mm to ensure that the reflectivity of the guide markings is greater than or equal to 150 mcd・lx⁻¹・m⁻¹. The pedestrian crossings at the intersection shall directly divert pedestrians on the sidewalk 3 in the median strip to the sides of the current auxiliary road or the sides of the intersecting road, so as to achieve orderly evacuation of pedestrians.

[0032] To facilitate understanding of the above technical solutions of the present invention, the following provides a detailed description of the construction of the intersection diversion structure of the median integrated pedestrian walkway in actual practice.

[0033] Located on the outskirts of a city, the elevated expressway is equipped with a ground-level auxiliary road. The main elevated road 1 has six lanes in both directions, while the ground-level auxiliary road (i.e., the motor vehicle lane 5 of the ground road) has four lanes in both directions. The auxiliary road is mainly surrounded by green belts. There are few entrances and exits to the plot, and the traffic flow of motor vehicles and non-motor vehicles is relatively large. Pedestrian needs are concentrated at intersections to cross the street. The area has a large annual rainfall, and the elevated bridge surface needs to efficiently drain rainwater.

[0034] 1) Design scheme.

[0035] The median strip between the two lanes of the ground auxiliary road is 8m wide, with a 4m wide pedestrian walkway in the center of the median strip. A 1m wide green isolation strip is reserved on each side of the pedestrian walkway. The pedestrian walkway (i.e., pedestrian walkway 3 in the median strip) is made of C30 fine stone concrete base (18cm thick) plus 10cm thick anti-slip solid bricks (300mm×300mm). The surface of the bricks is grooved for anti-slip treatment (groove depth 1.2mm, groove spacing 20mm). The anti-slip coefficient is tested to be 0.68 in dry condition and 0.52 in wet condition, which meets the anti-slip requirements. The base layer is provided with a 2‰ transverse drainage slope to guide rainwater to the drainage well of the rest platform.

[0036] Every 60m along the elevated bridge deck, a DN150 cast iron drain pipe is installed, with the drain pipe outlet 0.6m above the pedestrian walkway surface and vertically aligned with the drainage well of the rest platform (deviation ≤8cm). Along the main body of pedestrian walkway 3 in the median strip, a rest platform is installed every 200-300m. Each platform is 1-3m wide and 2-3m long, with simple rest facilities on both sides and a 2-3m passageway reserved in the middle to accommodate both rest and passage needs. Each platform includes two sets of concrete anti-slip seats (1.2m long × 0.4m wide × 0.45m high) and a small drainage well with a diameter of 30cm. The drainage well cover is made of ductile iron (load capacity C300), with drainage holes of 6mm diameter and 50mm spacing on the surface. The bottom of the drainage well is connected to a DN200 HDPE drainage branch pipe (0.8% slope), which connects to the auxiliary road rainwater network, forming a complete drainage path.

[0037] A 1.2m high corrugated beam guardrail (made of Q235 steel) is installed between motor vehicle lane 5 and non-motor vehicle lane 6 on the ground road. The guardrail posts are spaced 2m apart and buried 0.6m deep. The guardrail is tested and found to withstand a horizontal load of 12kN / m, which meets the safety standards. The non-motor vehicle lane is 3m wide to ensure smooth passage for non-motor vehicles.

[0038] The intersection's traffic separation structure uses 4.5m wide pedestrian crossings with 0.6m spacing between crossing lines. The guide markings are made of white hot-melt paint (2mm thick) with a reflectivity of 180mcd・lx⁻¹・m⁻¹. After the project was implemented, motor vehicle traffic on the ground auxiliary road was smooth, and conflicts between motor vehicles and non-motor vehicles were significantly reduced. Pedestrian crossings were orderly and safe. During heavy rain, all rainwater from the elevated road flowed into the drainage wells through the drain pipes, and there was no water accumulation on the sidewalks and rest platforms, demonstrating excellent drainage performance.

[0039] 2) Construction process.

[0040] 2.1) Foundation construction: Level the median strip site (i.e., sidewalk 3 in the median strip) (8m wide) and compact the base, pour an 18cm thick C30 fine stone concrete base; locate rest platforms at intervals of 200-300m, excavate drainage well pits with a diameter of 30cm, lay DN200 HDPE drainage branch pipes (slope 0.8%), and connect them to the auxiliary road rainwater pipe network.

[0041] 2.2) Main structure construction: After the base layer is cured, lay 300mm×300mm anti-slip solid bricks (10cm thick), with grooves on the brick surface (1.2mm deep, 20mm spacing); install concrete anti-slip seats at the rest platform, and set up ductile iron drainage wells (30cm diameter), with drainage holes (6mm diameter, 50mm spacing) on ​​the well cover; install DN150 drainage pipes every 60m on the elevated bridge surface, with the outlet 0.6m from the sidewalk ground, aligned with the drainage well (deviation ≤8cm); install 1.2m high Q235 steel corrugated beam guardrails between the motor vehicle and non-motor vehicle lanes, with column spacing of 2m and burial depth of 0.6m.

[0042] 2.3) Construction of traffic diversion structure at intersection: A 4.5m wide pedestrian crossing is set at the intersection with a line spacing of 0.6m; the traffic diversion markings are sprayed with white hot melt paint (2mm thick) to ensure that the reflectivity meets the standard.

[0043] In summary, by utilizing the above-mentioned technical solutions of this invention, the pedestrian walkway is located in the median strip, revitalizing idle space, and the green isolation belt enhances the road landscape. The width of the motor vehicle lanes is guaranteed, effectively reducing conflicts between motorized and non-motorized traffic and significantly improving the traffic efficiency of the ground auxiliary roads. The non-motorized vehicle lanes are sufficiently wide to meet the traffic needs of non-motorized vehicles during peak hours. Furthermore, the "pedestrian crossing plus guide markings" diversion structure at intersections simplifies the design while achieving orderly pedestrian flow, reducing conflicts between pedestrians and motor vehicles, and ensuring pedestrian safety. The anti-slip paving stones maintain good anti-slip performance even in wet environments, further reducing the risk of pedestrian falls. This invention utilizes a directional drainage path through the elevated-rest platform-ground drainage system, allowing for rapid drainage of rainwater from the elevated structure during heavy rain, preventing water accumulation on the pedestrian walkways and rest platforms. The drainage path is centralized and clearly defined, facilitating later maintenance. The structure is simple, the construction process is standardized, and the construction cycle is shortened. The anti-slip through-body paving stones have strong wear resistance and good anti-aging properties. The drainage system structure is centralized, resulting in a long service life for the pedestrian walkway surface and low maintenance costs.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A traffic diversion structure for an intersection with a median strip integrated with a pedestrian walkway, characterized in that, include: Elevated main line (1); Bridge piers (2) are symmetrically arranged at the bottom of the elevated main line (1); The median strip pedestrian walkway (3) is located at the bottom of the elevated main line (1) and between the two bridge piers (2); it is equipped with a rest platform and drainage well to replace the traditional sidewalk layout on both sides. Sidewalk and motor vehicle lane guardrails (4) are symmetrically arranged on both sides of the sidewalk (3) within the median strip; The motor vehicle lanes (5) of the ground road are symmetrically arranged on both sides of the sidewalk (3) in the median strip; Non-motorized vehicle lanes (6) are all located on one side of the motorized vehicle lanes (5) of the ground road; Motor vehicle and non-motor vehicle separation guardrails (7) are installed between the motor vehicle lane (5) and the non-motor vehicle lane (6) of the ground road. The motor vehicle and non-motor vehicle separation guardrails (7) are corrugated beam isolation guardrails and are made of Q235 steel.

2. The intersection traffic diversion structure with integrated pedestrian walkway in the median strip according to claim 1, characterized in that, The distance between the two piers (2) is 30 to 35 meters. The cross-sectional dimensions of the pier (2) are 1.2 meters × 0.8 meters. The horizontal distance between the edge of the pier (2) and the sidewalk (3) in the median strip is not less than 1.5 meters, so as to avoid interfering with pedestrian traffic.

3. The intersection traffic diversion structure with integrated pedestrian walkway in the median strip according to claim 1, characterized in that, The width of the pedestrian walkway (3) in the median strip is 3 to 5 meters, and a green isolation belt of 1 to 1.5 meters is reserved on both sides of the pedestrian walkway (3) in the median strip.

4. The intersection traffic diversion structure with integrated pedestrian walkway in the median strip according to claim 1, characterized in that, The pedestrian walkway (3) in the median strip is provided with a rest platform every 200 to 300 meters. The width of the rest platform is 1 to 3 meters and the length is 2 to 3 meters. The manhole cover of the drainage well is made of ductile iron and has anti-slip texture and drainage holes on its surface.

5. The intersection traffic diversion structure with integrated pedestrian walkway in median strip according to claim 1, characterized in that, The ground of the pedestrian walkway (3) in the median strip adopts a combination structure of C30 fine stone concrete base and 10 cm thick anti-slip and wear-resistant through-body brick, and the anti-slip and wear-resistant through-body brick has a size of 300 mm × 300 mm, and its surface is treated with groove anti-slip treatment.

6. The intersection traffic diversion structure with integrated pedestrian walkway in the median strip according to claim 1, characterized in that, The height of the motor vehicle and non-motor vehicle separation guardrail (7) is 1.2 meters, the spacing between guardrail posts is 2 meters, the burial depth of the guardrail posts is 0.6 meters, and the horizontal load resistance is not less than 10 kN / m.

7. The intersection traffic diversion structure with integrated pedestrian walkway in median strip according to claim 1, characterized in that, The non-motorized vehicle lane (6) is arranged along the outer edge of the motorized vehicle lane (5) of the ground road, and the width of the non-motorized vehicle lane (6) is 2.5 meters to 3 meters.

8. The intersection traffic diversion structure with integrated pedestrian walkway in the median strip according to claim 1, characterized in that, The motor vehicle lanes (5) of the ground road are all two-way lanes, and the width of each lane is 3.5 meters to 3.75 meters.

9. The intersection traffic diversion structure with integrated pedestrian walkway in the median strip according to claim 1, characterized in that, The elevated main line (1) is equipped with a drainage pipe on its bridge deck, and the outlet of the drainage pipe is 0.5 to 0.8 meters above the ground of the pedestrian walkway (3) in the median strip, so as to avoid rainwater splashing and affecting pedestrians.

10. A construction process for a median strip integrated pedestrian crossing intersection diversion structure, used to implement the construction of the median strip integrated pedestrian crossing intersection diversion structure as described in claim 1, characterized in that, The construction process for this median strip integrated pedestrian crossing intersection diversion structure includes the following steps: S1. Level the median strip area of ​​the auxiliary road and compact the base. Pour an 18cm thick C30 fine stone concrete base and set a 2‰ transverse drainage slope for the base. Locate the rest platform positions at intervals of 200 to 300 meters, excavate drainage well pits with a diameter of 30 cm, lay DN200 drainage branch pipes, and connect the drainage branch pipes to the original drainage system of the auxiliary road to form a drainage passage. S2. After the C30 fine stone concrete base course is cured, lay 300 mm × 300 mm, 10 cm thick anti-slip and wear-resistant through-body bricks in the median strip area. The surface of the bricks is grooved for anti-slip treatment. The groove depth is 1.0 mm to 1.5 mm and the groove spacing is 20 mm. Install simple rest facilities at the rest platform location, set up small drainage wells and install ductile iron manhole covers. The manhole cover surface is provided with anti-slip texture and drainage holes. Install drainage pipes at the preset positions on the bridge deck of the elevated main line (1) so that the drainage pipe outlet is 0.5 m to 0.8 m above the ground of the sidewalk (3) in the median strip and the drainage pipe is vertically aligned with the drainage well in the rest platform. Install motor vehicle and non-motor vehicle isolation guardrails (7) between the motor vehicle lane (5) and the non-motor vehicle lane (6) of the ground road, and install sidewalk and motor vehicle lane guardrails (4) between the sidewalk (3) in the median strip and the motor vehicle lane (5) of the ground road. S3. At the intersection of the ground auxiliary road and the intersecting road, a pedestrian crossing is marked. The width of the pedestrian crossing is 4 to 5 meters, the length matches the width of the intersection, and the spacing between the pedestrian crossing lines is 0.6 meters. White hot melt paint is used to spray the guide lines on the motor vehicle lane (5) of the ground road at the intersection. The paint thickness is 1.8 mm to 2.5 mm. Ensure that the reflectivity of the guide lines is greater than or equal to 150 mcd・lx⁻¹・m⁻¹. The pedestrians on the sidewalk (3) in the median strip are directly diverted to the sides of the current auxiliary road or the sides of the intersecting road through the pedestrian crossing at the intersection, so as to achieve orderly evacuation of pedestrians.

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