A green hedge plant arrangement structure for tram ground section

Abstract

The present invention discloses a tram ground section hedge plant arrangement structure, including a tram roadbed and two tram running lines, each tram running line includes a reinforced concrete rail support, a tram track, a prefabricated standard concrete component array, planting soil, hedge plants, turf, embedded steel plates, guardrail columns, integrated pipelines, integrated pipeline plain concrete encapsulation and water supply pipes, the prefabricated standard concrete component array includes a plurality of prefabricated standard concrete components and they are arranged along the running direction of the tram track, each prefabricated standard concrete component is provided with an integrated pipeline installation groove, a water supply groove and a pre-embedded steel plate on the top, and the guardrail columns are welded on the embedded steel plates. The present invention carries out intensive design, and minimizes the occupation of road resources under the conditions of meeting the requirements of pipeline laying, hedge plant growth and unobstructed drainage, and at the same time adopts a pre-production on-site splicing construction method to greatly improve construction efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of trams, and more specifically, relates to a hedge plant arrangement structure in a ground section of a tram. Background Art

[0002] At present, most of the modern trams in China are built in cities. Due to the characteristics of trams that can cross the ground, based on the consideration of investment cost, demolition cost and transformation cost, most tram lines in various places choose to run in the middle of urban roads. In the current environment, urban development has higher and higher requirements for landscape elements, so the aesthetic requirements for the landscape along the trams when they run in the middle of the road are also getting higher and higher. When trams run along the road, they basically choose to cover the track area with soil and plant grass, and use full-length railings or hedges on both sides to fence the track area. First, it plays the role of beautifying the landscape of the interval, and second, it plays the role of isolating outsiders and preventing them from crossing the track area.

[0003] Since the tram itself needs to supply power along the line, it is necessary to set up a full-length concrete cable channel in the same direction as the line on both sides or in the middle of the track area; at the same time, based on the limit requirements of the tram, protective railings and isolation nets need to be set up on both sides of the track area to prevent hedge plants from growing too much and invading the limit and affecting the safety of tram operation; in addition, curbstones need to be set at the location where the outer side of the track area meets the road to distinguish and isolate the two.

[0004] In summary, when trams run in the middle of urban roads, multiple components need to be installed on both sides of the track area to ensure the smoothness of the urban landscape and the safety of tram operations. However, the common practice of trams in various places is to install independent facilities, that is, independent cable channels, independent isolation guardrail bases, and independent curbstone bases. Each component requires a wider width when it is installed independently, resulting in a larger overall width of the track area, which leads to an increase in the amount of demolition and requisition of projects; the interfaces between the components are not clear, which can easily cause inconvenience in construction in the area and waste of resources due to repeated excavation and backfilling. Summary of the invention

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a tram ground section hedge plant arrangement structure, which is intensively designed to minimize the occupation of road resources while meeting the conditions of pipeline laying, hedge plant growth, and smooth drainage. At the same time, the pre-production and on-site splicing construction method is adopted to greatly improve the construction efficiency. It can not only meet the needs of normal operation of the ground section of the tram road with a highly intensive cross-sectional width, but also improve construction efficiency and reduce resource waste through prefabricated standard components plus on-site paving.

[0006] To achieve the above object, according to one aspect of the present invention, a tram ground section hedge plant arrangement structure is provided, characterized in that it includes a tram roadbed and two parallel tram running lines, wherein:

[0007] For each of the tram running lines, each includes a reinforced concrete rail support, a tram track, an array of precast standard concrete components, planting soil, hedge plants, turf, embedded steel plates, guardrail posts, integrated pipelines, integrated pipeline plain concrete encapsulation and water pipes. The reinforced concrete rail support and the array of precast standard concrete components are both supported by the tram roadbed, and the array of precast standard concrete components is located on one side of the tram roadbed. The reinforced concrete rail support is installed with the tram track through fasteners. The array of precast standard concrete components includes a plurality of precast standard concrete components and these precast standard concrete components are arranged along the running direction of the tram track, and two adjacent precast standard concrete components are abutted against each other. Planting soil covers the reinforced concrete rail support, the array of precast standard concrete components and the tram track. On the roadbed, the hedge plants and turf are planted on the planting soil, the hedge plants are located outside the tram limit, each of the prefabricated standard concrete components is provided with an integrated pipeline installation groove, these integrated pipeline installation grooves together form an integrated pipeline installation ditch, the integrated pipeline installation ditch is located between the hedge plants and the reinforced concrete rail support platform, the integrated pipeline is installed in the integrated pipeline installation ditch, the integrated pipeline plain concrete encapsulation is arranged in the integrated pipeline installation ditch, the top of each of the prefabricated standard concrete components is pre-embedded with the embedded steel plate, the guardrail column is welded to the embedded steel plate, and each of the prefabricated standard concrete components is also provided with a water supply groove at the position corresponding to the hedge plants, these water supply grooves together form a water supply ditch, and the water supply pipe is arranged in the water supply ditch to supply water to the planting soil area where the hedge plants are located.

[0008] Preferably, each of the prefabricated standard concrete components is pre-buried with a drainage pipe at a position corresponding to the water supply groove, the drainage pipe is vertically arranged, and the upper end of the drainage pipe extends into the water supply groove and the lower end extends into the tram roadbed.

[0009] Preferably, each of the tram running lines also includes a road structure layer, flat stones and curbs, the prefabricated standard concrete component array is arranged between the reinforced concrete rail support platform and the road structure layer and abuts against the road structure layer, the flat stones are supported by the road structure layer, and the curbs are installed on the prefabricated standard concrete components and abut against the flat stones.

[0010] Preferably, a notch is provided on the top of the prefabricated standard concrete component on a side away from the reinforced concrete rail support platform, and the curb is installed at the notch of the prefabricated standard concrete component.

[0011] Preferably, the road structure layer comprises a road subgrade structure layer and a road pavement structure layer which are sequentially arranged from bottom to top.

[0012] Preferably, protective nets are installed on these guardrail posts.

[0013] Preferably, the tram roadbed comprises a tram roadbed cement crushed stone concrete stabilization layer and a tram roadbed concrete cushion layer arranged in sequence from bottom to top, the reinforced concrete rail support platform is supported by the tram roadbed concrete cushion layer, and the prefabricated standard concrete component array is supported by the tram roadbed cement crushed stone concrete stabilization layer.

[0014] Preferably, the concrete strength grade of the reinforced concrete rail support is not lower than C40, the concrete strength grade of the tram roadbed concrete cushion is not lower than C20, the concrete strength grade of the prefabricated standard concrete component is not lower than C20, and the concrete strength grade of the integrated pipeline plain concrete encapsulation is not lower than C10.

[0015] Preferably, the top surface of the plain concrete encapsulation of the integrated pipeline is flush with the top surface of the prefabricated standard concrete component.

[0016] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0017] 1) The tram ground section hedge plant arrangement structure of the present invention utilizes prefabricated standard concrete components to organically combine the hedge plant growth space, water supply pipe space, protective net steel column base, integrated pipeline groove, etc. in the section, which not only maximizes the overall occupied width of the track area, but also the overall structure ensures the stability and safety of each component, avoiding the large cross-sectional occupied width and unstable structure between components caused by the independent components under the prior art.

[0018] 2) The present invention realizes the intensive use of the width of the cross-section occupied by the components on both sides of the track area in the ground section of the tram road when the usage requirements are met, thereby reducing the width of the road occupied by the tram track area as a whole and reducing the cost of demolition and reconstruction of the outer side of the road.

[0019] 3) The present invention realizes the prefabrication of standard structural components below the track area on both sides of the ground section of the tramway, clarifies the construction work surface, avoids the mutual interference of the existing construction interfaces of the components, improves the construction efficiency, enhances the construction convenience, optimizes the vertical arrangement of the components, reduces the repeated excavation or filling in the same area, and avoids the waste of resources caused by repeated and abandoned projects.

[0020] 4) The present invention realizes a water supply system with complete functions for the hedge plants on both sides of the track area of ​​the tramway ground section, and at the same time, it realizes that the hedge plant area will not accumulate water for a long time, ensuring smooth water filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional schematic diagram of the tram ground section hedge plant arrangement structure of the present invention;

[0022] Figure 2 It is a schematic cross-sectional view of a precast concrete component of a tram ground section hedge plant arrangement structure according to the present invention;

[0023] Figure 3 It is a top view schematic diagram of the prefabricated standard concrete components of the tram ground section hedge plant arrangement structure of the present invention;

[0024] In all the drawings, the same reference numerals represent the same components and contents, among which: 1-prefabricated standard concrete components, 2-guardrail columns, 3-embedded steel plates, 4-hedge plants, 5-planting soil, 6-plain concrete encapsulation of integrated pipelines, 7-integrated pipelines, 8-water supply pipes, 9-drainage pipes, 10-road pavement structure layer, 11-road subgrade structure layer, 12-curbstones, 13-flat stones, 14-tram tracks, 15-reinforced concrete track supports, 16-tram subgrade concrete cushion layer, 17-tram subgrade cement crushed stone concrete stabilization layer, 18-turf, 101-gap, 102-water supply groove, 103-integrated pipeline installation groove. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] Reference Figure 1 to Figure 3 A tram ground section hedge plant 4 arrangement structure includes a tram roadbed and two parallel tram running lines, on which trams can run, wherein:

[0027] For each of the tram lines, each includes a reinforced concrete rail support 15, a tram track 14, a prefabricated standard concrete component array, planting soil 5, hedge plants 4, turf 18, embedded steel plates 3, guardrail posts 2, integrated pipelines 7, integrated pipeline plain concrete encapsulation 6 and a water supply pipe 8. The reinforced concrete rail support 15 and the prefabricated standard concrete component array are both supported by the tram roadbed, and the prefabricated standard concrete component array is located on the tram roadbed. On one side, preferably, the tram roadbed includes a tram roadbed cement crushed stone concrete stabilization layer 17 and a tram roadbed concrete cushion layer 16 arranged in sequence from bottom to top, both sides of the tram roadbed cement crushed stone concrete stabilization layer 17 exceed both sides of the tram roadbed concrete cushion layer 16, the reinforced concrete rail support platform 15 is supported by the tram roadbed concrete cushion layer 16, and the prefabricated standard concrete component array is supported by the tram roadbed cement crushed stone concrete stabilization layer 17.

[0028] The reinforced concrete rail support 15 is installed on the tram track 14 through fasteners. The precast standard concrete component array includes a plurality of precast standard concrete components 1 and these precast standard concrete components 1 are arranged along the running direction of the tram track 14. Two adjacent precast standard concrete components 1 are abutted against each other. The precast standard concrete components 1 are precast by standardized formwork casting at a set site, that is, the precast concrete standard components are all precast in advance, and are then laid and installed during the construction of the tram road to form a precast concrete standard component array. Each of the precast standard concrete components 1 is a rectangular solid with a notch 101 and a groove on the top. The notch 101 serves as the installation position of the curb 12, and the grooves (water supply groove 102, integrated pipeline installation groove 103) are used to install the water supply pipe 8 and the integrated pipeline 7 respectively. It is 2m long and 1.4m wide, and the concrete strength grade is not less than C20.

[0029] The planting soil 5 covers the reinforced concrete rail support 15, the prefabricated standard concrete component array and the tram roadbed, the hedge plants 4 and the turf 18 are planted on the planting soil 5, the hedge plants 4 are located outside the tram limit, each of the prefabricated standard concrete components 1 is provided with an integrated pipeline installation groove 103, these integrated pipeline installation grooves 103 together form an integrated pipeline installation trench, the integrated pipeline installation trench is located between the hedge plants 4 and the reinforced concrete rail support 15, the integrated pipeline 7 is installed in the integrated pipeline installation trench, the integrated pipeline plain concrete encapsulation 6 is arranged in the integrated pipeline installation trench, the integrated pipeline 7 is reinforced by the integrated pipeline plain concrete encapsulation 6, the destructiveness of the road surface load to the pipeline can be reduced.

[0030] The embedded steel plate 3 is embedded in the top of each prefabricated standard concrete component 1, and the guardrail column 2 is welded to the embedded steel plate 3. Each prefabricated standard concrete component 1 is also provided with a water supply groove 102 at a position corresponding to the hedge plant 4. These water supply grooves 102 together form a water supply ditch, and the water supply pipe 8 is arranged in the water supply ditch to supply water to the planting soil 5 area where the hedge plant 4 is located. Water can be supplied to the water supply pipe 8 through an external water pipe, and the water supply pipe 8 supplies water to the planting soil 5 in the water supply ditch for water supply.

[0031] Furthermore, each of the prefabricated standard concrete components 1 is pre-buried with a drainage pipe 9 at a position corresponding to the water supply groove 102. The drainage pipe 9 is vertically arranged, and the upper end of the drainage pipe 9 extends into the water supply groove 102 and the lower end extends into the tram roadbed. The drainage pipe 9 is used to filter out excess water in the water supply ditch. Multiple drainage pipes 9 can be pre-buried on each prefabricated standard concrete component 1.

[0032] Furthermore, each of the tram lines further comprises a road structure layer, flat stones 13 and curbstones 12, wherein the road structure layer comprises a road subgrade structure layer 11 and a road pavement structure layer 10 arranged in sequence from bottom to top, the prefabricated standard concrete component array is arranged between the reinforced concrete rail support platform 15 and the road structure layer and abuts against the road structure layer, the flat stones 13 are supported by the road structure layer, and the curbstones 12 are installed on the prefabricated standard concrete components 1 and abut against the flat stones 13. Both sides of the prefabricated standard concrete components 1 abut against the road structure layer and the tram subgrade concrete cushion layer 16 respectively.

[0033] Furthermore, a notch 101 is provided at the top of the side of the precast standard concrete component 1 away from the reinforced concrete rail support platform 15, and the curb 12 is installed at the notch 101 of the precast standard concrete component 1, so that the precast standard concrete component 1 can serve as an installation base for the curb 12.

[0034] Furthermore, the guardrail posts 2 are made of steel square tubes, and protective nets are installed on the guardrail posts 2, and the protective nets are made of low-carbon steel wires.

[0035] Furthermore, the concrete strength grade of the reinforced concrete rail support 15 is not lower than C40, the concrete strength grade of the tram roadbed concrete cushion 16 is not lower than C20, the concrete strength grade of the prefabricated standard concrete component 1 is not lower than C20, and the concrete strength grade of the integrated pipeline plain concrete encapsulation 6 is not lower than C10.

[0036] The embodiment of the present invention provides a tram ground section hedge plant 4 arrangement structure. First, the specific size of the precast concrete standard component can be determined according to the engineering vehicle limit, road width, integrated pipeline installation groove width, and the required width for the growth of the hedge plant 4. Figure 2 The middle dimensions are recommended values ​​for conventional tram projects, and the units of marked dimensions are mm).

[0037] Before pouring the precast concrete standard component, a square embedded steel plate 3 is embedded in the center of its upper surface, with a thickness of 8mm and a length and width of 200mm×200mm. In the water supply groove 102, a drainage pipe 9 is embedded every 0.5m (the specific plane layout can be seen in Figure 3 , the unit of dimension marking is mm).

[0038] The construction steps of the present invention are as follows:

[0039] 1) According to the on-site layout of the project boundary, the construction of the road subgrade structure layer 11 and the tram subgrade cement crushed stone concrete stabilization layer 17 is completed at the corresponding positions.

[0040] 2) The precast concrete standard components are laid and installed in batches on the tram roadbed cement crushed stone concrete stabilization layer 17, and then the tram roadbed concrete cushion layer 16, road pavement structure layer 10, flat stone 13, and curb 12 are constructed on both sides of the precast concrete standard components in sequence.

[0041] 3) The construction and installation of the reinforced concrete rail support 15, the rail 14 and the fasteners are completed successively at the corresponding positions above the tram roadbed concrete cushion layer 16.

[0042] 4) The integrated pipeline 7 is laid in the integrated pipeline installation trench, and the plain concrete encapsulation 6 of the integrated pipeline is constructed. After completion, the top surface of the plain concrete encapsulation 6 of the integrated pipeline should be flush with the top surface of the prefabricated standard concrete component 1.

[0043] 5) The guardrail posts 2 are welded in alignment above the embedded steel plate 3, and low-carbon steel wires are serially installed from the middle of the guardrail posts 2 along the running direction of the track 14, thereby forming a continuous protective surface on both sides of the track area. The protective surface is not only used to prevent outsiders from entering the track area at will, but also serves as a growth protection and climbing attachment component for hedge plants 4.

[0044] 6) Backfill the planting soil 5 in the prefabricated standard concrete component 1, the tram roadbed concrete cushion layer 16, above the reinforced concrete rail support platform 15, and within the range from the inner side of the curb 12 to the rail surface height, and compact the planting soil 5 evenly and levelly as required.

[0045] 7) A corresponding number of hedge plants 4 are planted above the water supply ditch of the prefabricated standard concrete component 1, and turf 18 is fully covered on the upper surface of the planting soil 5; at this point, the greening construction in the track area of ​​the project ground section is completed.

[0046] In summary, the present invention is to lay and install the batch-produced precast concrete standard components according to the actual location of the project and the slope of the track 14 in the direction of the track 14, and then install the water supply pipe 8, integrated pipeline 7, guardrail column 2, municipal curb 12, etc. to the corresponding positions reserved for the standard components, and complete the upper covering construction in time, and then complete the laying of turf 18 and the planting of hedge plants 4.

[0047] The present invention mainly utilizes the prefabricated standard concrete components 1 that have been prefabricated in advance to be laid and installed at the construction site. The modular prefabricated standard concrete components 1 integrate the base of the curb 12, the growth space of the hedge plant 4, the water supply pipe space, the steel column base, the integrated pipeline groove, etc. They are organically combined together to gather together the various components in the prior art, avoiding the problem of repeated excavation and construction before, not only maximizing the overall occupied width of the track area, but also the overall structure ensures the stability and safety of each component.

[0048] It will be easily understood by those skilled in the art that 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tram ground section hedge plant arrangement structure, characterized in that: It includes a tram roadbed and two parallel tram lines, among which: For each of the tram running lines, each includes a reinforced concrete rail support, a tram track, an array of precast standard concrete components, planting soil, hedge plants, turf, embedded steel plates, guardrail posts, integrated pipelines, integrated pipeline plain concrete encapsulation and water pipes. The reinforced concrete rail support and the array of precast standard concrete components are both supported by the tram roadbed, and the array of precast standard concrete components is located on one side of the tram roadbed. The reinforced concrete rail support is installed with the tram track through fasteners. The array of precast standard concrete components includes a plurality of precast standard concrete components and these precast standard concrete components are arranged along the running direction of the tram track, and two adjacent precast standard concrete components are abutted against each other. Planting soil covers the reinforced concrete rail support, the array of precast standard concrete components and the tram track. On the roadbed, the hedge plants and turf are planted on the planting soil, the hedge plants are located outside the tram limit, each of the prefabricated standard concrete components is provided with an integrated pipeline installation groove, these integrated pipeline installation grooves together form an integrated pipeline installation ditch, the integrated pipeline installation ditch is located between the hedge plants and the reinforced concrete rail support platform, the integrated pipeline is installed in the integrated pipeline installation ditch, the integrated pipeline plain concrete encapsulation is arranged in the integrated pipeline installation ditch, the top of each of the prefabricated standard concrete components is pre-embedded with the embedded steel plate, the guardrail column is welded to the embedded steel plate, and each of the prefabricated standard concrete components is also provided with a water supply groove at the position corresponding to the hedge plants, these water supply grooves together form a water supply ditch, and the water supply pipe is arranged in the water supply ditch to supply water to the planting soil area where the hedge plants are located.

2. The tram ground section hedge plant arrangement structure according to claim 1, characterized in that: Each of the prefabricated standard concrete components is pre-buried with a drainage pipe at a position corresponding to the water supply groove. The drainage pipe is vertically arranged, and the upper end of the drainage pipe extends into the water supply groove and the lower end extends into the tram roadbed.

3. The tram ground section hedge plant arrangement structure according to claim 1, characterized in that: Each of the tram running lines also includes a road structure layer, flat stones and curbstones. The prefabricated standard concrete component array is arranged between the reinforced concrete rail support platform and the road structure layer and abuts against the road structure layer. The flat stones are supported by the road structure layer, and the curbstones are installed on the prefabricated standard concrete components and abut against the flat stones.

4. The tram ground section hedge plant arrangement structure according to claim 3, characterized in that: A notch is arranged on the top of the prefabricated standard concrete component on a side away from the reinforced concrete rail support platform, and the curb is installed at the notch of the prefabricated standard concrete component.

5. The tram ground section hedge plant arrangement structure according to claim 4, characterized in that: The road structure layer comprises a road subgrade structure layer and a road pavement structure layer which are arranged in sequence from bottom to top.

6. The tram ground section hedge plant arrangement structure according to claim 1, characterized in that: Protective nets are installed on these guardrail posts.

7. The tram ground section hedge plant arrangement structure according to claim 1, characterized in that: The tram roadbed comprises a tram roadbed cement crushed stone concrete stabilizing layer and a tram roadbed concrete cushion layer which are arranged in sequence from bottom to top; the reinforced concrete rail bearing platform is supported by the tram roadbed concrete cushion layer; and the prefabricated standard concrete component array is supported by the tram roadbed cement crushed stone concrete stabilizing layer.

8. The tram ground section hedge plant arrangement structure according to claim 1, characterized in that: The concrete strength grade of the reinforced concrete rail support platform is not less than C40, the concrete strength grade of the tram roadbed concrete cushion layer is not less than C20, the concrete strength grade of the prefabricated standard concrete component is not less than C20, and the concrete strength grade of the integrated pipeline plain concrete encapsulation is not less than C10.

9. The tram ground section hedge plant arrangement structure according to claim 1, characterized in that: The top surface of the plain concrete encapsulation of the integrated pipeline is flush with the top surface of the prefabricated standard concrete component.

Images