Honeycomb hexagonal anti-waterlogging water storage roadbed structure and construction method thereof

Abstract

The invention relates to the technical field of road roadbeds, and discloses a honeycomb hexagonal anti-waterlogging water storage roadbed structure which is laid on a soil body and comprises a raft foundation laid on the soil body; the water storage units are in a hexagonal prism shape, the side faces of the water storage units are attached to one another and laid on a raft foundation, the bottoms and the tops of the water storage units are each provided with a first water permeable hole and a second water permeable hole, and the six side faces of each water storage unit are each provided with a through hole communicated with the corresponding adjacent water storage unit; the drainage pipeline is arranged on one side of a water storage layer formed by the multiple water storage units on the raft foundation, and the drainage pipeline is used for draining redundant water in the water storage units; according to the honeycomb hexagonal anti-waterlogging water storage road, the unique geometrical shape and material design can enhance the drainage, water storage and pressure resistance of a roadbed, the urban anti-waterlogging problem is solved, and the traffic, infrastructure and economic pressure caused by waterlogging is relieved.

Description

Technical Field

[0001] The invention relates to the technical field of road subgrade, and in particular to a honeycomb hexagonal flood-resistant water storage subgrade structure and a construction method thereof. Background Art

[0002] With the acceleration of urbanization, the land use pattern in urban areas has changed dramatically. The increase of a large number of impermeable surfaces (such as concrete and asphalt pavement) has significantly reduced the infiltration and absorption capacity of natural precipitation. This has led to the frequent occurrence of urban waterlogging, especially in the rainy season or extreme weather conditions. The urban drainage system is often unable to quickly drain a large amount of rainwater, causing water accumulation on the roadbed, which in turn leads to traffic paralysis, infrastructure damage and economic losses. In addition, with global climate change, the frequency and intensity of extreme rainfall events are increasing, and the risk of urban waterlogging is becoming more and more serious.

[0003] At present, traditional urban drainage and flood control measures, such as rainwater pipe networks and sewer systems, face challenges such as insufficient capacity and difficult maintenance. In response to this problem, permeable pavements are often used in existing technologies for urban drainage and flood control. Although permeable pavements have certain advantages in reducing urban waterlogging and enhancing rainwater management, due to the limited water storage capacity of permeable pavements, urban waterlogging will still occur when there is too much rain in a short period of time. Summary of the invention

[0004] The present invention proposes a honeycomb hexagonal flood-resistant water storage roadbed structure to address the deficiencies in the above-mentioned prior art. The honeycomb hexagonal flood-resistant water storage roadbed has a stronger water storage capacity, can cope with large amounts of precipitation in urban areas and effectively store and discharge rainwater.

[0005] The technical solution of the present invention is: a honeycomb hexagonal flood-proof water storage roadbed structure, comprising:

[0006] Raft foundation, laid on the soil roadbed;

[0007] A plurality of water storage units, all of which are hollow hexagonal prisms, the sides of the plurality of water storage units are laid on the raft foundation in abutment with each other, the bottom and top of the plurality of water storage units are respectively provided with a first water permeable hole and a second water permeable hole, the first water permeable hole is used to allow precipitation to flow into the water storage unit, and the second water permeable hole is used to allow water in the water storage unit to flow into the ground, and the six sides of the plurality of water storage units are provided with through holes connected to adjacent water storage units;

[0008] A drainage pipe is arranged on the raft foundation, the drainage pipe is located on one side of the water storage layer formed by the plurality of water storage units, the drainage pipe corresponds to the through hole of the outermost water storage unit, and the drainage pipe is used to discharge the water discharged from the through hole out of the roadbed structure;

[0009] The permeable pavement is laid above the plurality of water storage units.

[0010] In at least one embodiment of the present invention, the water storage unit comprises:

[0011] A hexagonal bottom plate, with a first hexagonal boss on the top, and the first water-permeable hole is arranged on the hexagonal bottom plate;

[0012] A hexagonal tube is arranged on a hexagonal bottom plate, wherein the first hexagonal boss is embedded in the inner cavity of the hexagonal tube, and the through holes are arranged on six side surfaces of the hexagonal tube;

[0013] The hexagonal top plate is arranged on the top of the hexagonal prism tube, the bottom of the hexagonal top plate is provided with a second hexagonal boss embedded in the hexagonal prism tube, and the second water-permeable hole is arranged on the hexagonal top plate.

[0014] In at least one embodiment of the present invention, the six side walls of the hexagonal top plate are each provided with an upwardly penetrating through groove in the middle, the through grooves on the sides of adjacent hexagonal top plates correspond to and penetrate each other, and locking pins are inserted into two corresponding through grooves, and the locking pins are used to fix the water storage unit.

[0015] In at least one embodiment of the present invention, for a water storage roadbed structure that does not require paving of a permeable road surface, a circular groove is provided on the top of the hexagonal top plate, the circular groove is connected to the first permeable hole, and permeable materials are provided in the circular groove and the first permeable hole.

[0016] In at least one embodiment of the present invention, a hexagonal groove is provided on the first hexagonal boss on the top of the hexagonal bottom plate, and the hexagonal groove is connected to the second water permeable hole.

[0017] In at least one embodiment of the present invention, the drainage pipe is connected to the urban drainage system.

[0018] The present invention also provides a construction method of a honeycomb hexagonal flood-proof water storage roadbed structure, comprising the following steps:

[0019] S1. Survey the terrain and level the soil;

[0020] S2. The construction of raft foundation, the construction sequence is: digging foundation trench, laying cushion layer, installing raft foundation layer and connecting and fixing raft foundation layer;

[0021] S3, installing a plurality of the water storage units, laying the plurality of the water storage units on the raft foundation in close contact with each other, and making the through holes on the six sides of the plurality of the water storage units communicate with the through holes of adjacent water storage units;

[0022] S4, installing a drainage pipe, and installing a drainage pipe corresponding to the through hole on one side of the water storage layer formed by the plurality of water storage units on the raft foundation;

[0023] S5. Laying permeable pavement: laying permeable pavement on the plurality of water storage units.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention is provided with a water storage unit capable of storing rainwater, a drainage pipe capable of discharging excess water in the water storage unit, and a permeable pavement laid on the water storage unit. When the honeycomb hexagonal flood-resistant water storage roadbed faces extreme rainfall conditions, rainwater can enter the water storage unit through the permeable pavement and the first permeable hole on the water storage unit, so that water is not easy to accumulate on the road surface. The water in the water storage unit is discharged into the ground through the second permeable hole, and the excess water in the water storage unit is finally discharged into the drainage pipe through the through hole, thereby realizing efficient discharge of rainwater. Compared with the prior art, the water storage unit of the present invention can provide a stronger water storage capacity, can effectively cope with extreme weather such as rainstorms and heavy rains, improves the flood resistance of the road, and reduces the time that rainwater stays on the road surface. The present invention maximizes the use of water storage space by configuring the water storage unit as a hexagonal honeycomb structure. The units are closely arranged, which can effectively store a large amount of rainwater. The drainage capacity is improved without increasing the thickness of the roadbed. The hexagonal design of the water storage unit has high overall strength and can be used to carry heavy traffic loads, especially in busy traffic areas such as urban roads and sidewalks.

[0026] 2. The present invention designs the water storage unit to be composed of a hexagonal bottom plate, a hexagonal prism tube and a hexagonal fixed plate, so that the water storage unit is standardized and modularized, which makes it easy to mass produce and quickly install, saving construction time and cost. The modular design also improves the convenience of later maintenance. When a water storage unit is damaged, it can be replaced separately without large-scale excavation.

[0027] 3. The water storage roadbed of the present invention is not only suitable for urban roads, but also specially designed for sidewalks. For areas that do not need to be covered with permeable asphalt, the top plate containing permeable materials can be directly used to meet the anti-flooding needs of different road types, thus improving the wide range of application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 For the present invention Figure 1 Detailed structural diagram at A;

[0030] Figure 3 This is a detailed structural diagram of the present invention applied to a sidewalk;

[0031] Figure 4 For the present invention Figure 3 Detailed structural diagram of location B.

[0032] Description of reference numerals:

[0033] 1. Soil roadbed; 2. Raft foundation; 3. Water storage unit; 31. First water permeable hole; 32. Second water permeable hole; 33. Through hole; 34. Hexagonal bottom plate; 341. First hexagonal boss; 342. Hexagonal groove; 35. Hexagonal prism tube; 36. Hexagonal top plate; 362. Second hexagonal boss; 363. Lock pin; 364. Circular groove; 4. Permeable pavement; 5. Permeable material. DETAILED DESCRIPTION

[0034] The drawings in the present invention are not drawn strictly according to the actual scale, and the specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only schematic diagrams of the structures.

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Inside", "outside", "up", "down", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] The existing technical solutions to urban waterlogging problems mainly include the following categories:

[0038] Traditional drainage systems, urban drainage systems are usually composed of rainwater pipes, drainage channels and groundwater systems. These systems rely on pipes and underground drainage facilities to quickly guide rainwater to drainage points or storage facilities. However, with the acceleration of urbanization and the increase in the frequency of extreme rainfall events, traditional drainage systems are often unable to cope with extreme precipitation due to insufficient capacity or unreasonable design, resulting in frequent waterlogging of roadbeds and waterlogging.

[0039] Permeable pavement, permeable pavement uses highly permeable materials such as permeable concrete, permeable asphalt, ceramic tiles, etc., allowing rainwater to penetrate through the pavement into the ground, reducing road surface water and pressure. However, this type of permeable material has limited water storage capacity and is prone to clogging after long-term use, affecting its effectiveness. In addition, permeable pavement is not strong enough to carry heavy vehicles and is not suitable for all traffic scenarios.

[0040] The concept of sponge city is a new concept of urban rainwater management. Its core is to increase the water absorption and storage capacity of urban surfaces through natural or artificial systems. The main technologies of sponge city include green roofs, vegetation ditches, rain gardens, sunken green spaces and permeable pavements. These facilities reduce drainage pressure and urban waterlogging by absorbing, purifying and utilizing rainwater. However, these facilities occupy a large urban space and have high construction and maintenance costs, and cannot fully solve the problem of urban roadbed waterlogging.

[0041] Water storage system. Cities also use rainwater collection and storage systems to direct rainwater to underground water storage facilities or special rainwater collection pools for later treatment and reuse. Such systems can alleviate urban drainage pressure to a certain extent, but their construction costs are high and they occupy a large amount of urban space, making them unsuitable for large-scale promotion.

[0042] Roadbed reconstruction technology, in response to the roadbed drainage problem, some solutions are to improve its drainage performance by modifying the roadbed structure. For example, permeable materials are added to the roadbed or a porous layer structure with good drainage performance is laid to enhance the drainage capacity of rainwater. However, existing roadbed reconstruction technologies are mostly focused on improving drainage capacity, with less consideration of water storage functions, and are usually applicable to new roadbeds or large-scale reconstruction projects. They are costly and difficult to be widely used.

[0043] In view of this, the purpose of the present invention is to provide a honeycomb hexagonal flood-resistant water storage roadbed structure, which aims to solve the problems of insufficient drainage capacity, limited water storage function and insufficient structural strength of urban roadbed in the prior art. The roadbed structure has efficient rainwater drainage, storage and load capacity by optimizing the geometric shape and material combination.

[0044] Combination Figures 1 to 4 As shown, a honeycomb hexagonal flood-proof water storage roadbed structure comprises:

[0045] The raft foundation 2 is laid on the soil roadbed 1; the raft foundation 2 is the bottom layer of the entire water storage roadbed structure, and is made of high-strength concrete or other durable materials. Its main functions are:

[0046] Maintaining consistent settlement of the roadbed: Since the upper load may cause inconsistent settlement of each small water storage device, the raft foundation layer can disperse and evenly bear the load to prevent local uneven settlement.

[0047] Prevent roadbed deformation: In long-term use, the raft foundation layer can effectively prevent the overall settlement or deformation of the roadbed, ensuring the flatness and service life of the road surface. The raft foundation layer is in close contact with the ground, ensuring that it can bear the dynamic loads of the road and pedestrian traffic, and increasing the stability of the roadbed structure.

[0048] The raft foundation improves the stability of the roadbed structure: the raft foundation layer evenly distributes the load, ensuring the uniform settlement of the entire roadbed and avoiding the road surface deformation problem caused by uneven settlement of each water storage device. This design is suitable for carrying heavy traffic loads, especially in busy traffic areas such as urban roads and sidewalks.

[0049] The multiple water storage units 3 are all hexagonal, and the sides of the multiple water storage units 3 are laid on the raft foundation 2 in a mutually adjacent manner. The bottom and top of the multiple water storage units 3 are respectively provided with a first water permeable hole 31 and a second water permeable hole 32, wherein the first water permeable hole 31 is used to allow precipitation to flow into the water storage unit 3, and the second water permeable hole 32 is used to allow the water of the water storage unit 3 to flow into the ground. The six sides of the multiple water storage units 3 are provided with through holes 33 connected to the adjacent water storage units 3, and the through holes 33 are used to discharge the excess water in the water storage unit 3; specifically, the present invention relieves the pressure of the urban drainage system by guiding rainwater to infiltrate back into the ground, reduces the dependence on external drainage facilities, and contributes to the recycling of water resources. It conforms to the construction concept of green cities and sponge cities.

[0050] The drainage pipe is arranged on the raft foundation 2. The drainage pipe is located on one side of the water storage layer formed by multiple water storage units 3. The drainage pipe corresponds to the through hole 33 of the outermost water storage unit 3. Under extreme rainfall conditions, when there is too much rainwater in the water storage unit 3 and it cannot be discharged in time, the system is designed with a drainage pipe connected to the raft foundation layer. The drainage pipe is connected to the urban drainage system, and the excess rainwater can be discharged into the urban rainwater drainage system to avoid waterlogging or waterlogging on the road surface.

[0051] The permeable pavement 4 is laid on top of the plurality of water storage units 3. The permeable pavement 4 is a permeable asphalt pavement. In the roadbed structure suitable for urban roads, a permeable asphalt pavement layer is covered on top of the water storage unit 3 layer. The permeable asphalt pavement can absorb and quickly drain surface rainwater, reduce road surface waterlogging, and improve driving safety. The pore structure of the permeable asphalt allows rainwater to quickly penetrate into the small water storage device below and be stored or discharged.

[0052] As an alternative embodiment, the water storage unit 3 includes:

[0053] A first hexagonal boss 341 is disposed on the top of the hexagonal bottom plate 34 , and the first water-permeable hole 31 is disposed on the hexagonal bottom plate 34 ; the first hexagonal boss 341 can be fixed to the hexagonal prism tube 35 .

[0054] The hexagonal tube 35 is arranged on the hexagonal bottom plate 34, the first hexagonal boss 341 is embedded in the inner cavity of the hexagonal tube 35, and the through holes 33 are arranged on the six sides of the hexagonal tube 35; the hexagonal design has high strength and can withstand the load from the road surface.

[0055] The hexagonal top plate 36 is arranged on the top of the hexagonal prism tube 35, and the bottom of the hexagonal top plate 36 is provided with a second hexagonal boss 361 embedded in the hexagonal prism tube 35. The second water-permeable hole 32 is arranged on the hexagonal top plate 36. The hexagonal top plate 36 has a certain strength and can withstand the load of pedestrians and vehicles.

[0056] As an alternative embodiment, the six side walls of the hexagonal top plate 36 are each provided with an upwardly penetrating through groove 362 in the middle portion, the through grooves 362 on the sides of adjacent hexagonal top plates 36 correspond to and penetrate each other, and locking pins 363 are inserted into two corresponding through grooves 362, and the locking pins 363 are used to fix the water storage unit 3, ensuring that the position of each water storage unit 3 is stable and immovable.

[0057] As an alternative embodiment, for a water storage roadbed structure such as a sidewalk that does not require the laying of a permeable pavement 7, a circular groove 364 is provided on the top of the hexagonal top plate 36, and the circular groove 364 is connected to the first permeable hole 31, and permeable material 6 is provided in both the circular groove 364 and the first permeable hole 31.

[0058] As an alternative embodiment, a hexagonal groove 342 is provided on the first hexagonal boss 341 on the top of the hexagonal bottom plate 34 , and the hexagonal groove 342 is connected to the second water-permeable hole 32 . The setting of the hexagonal groove 342 is conducive to draining the water in the chamber of the water storage unit 3 .

[0059] As an alternative embodiment, the drainage pipe is connected to the urban drainage system.

[0060] The present invention also provides a construction method of a honeycomb hexagonal flood-proof water storage roadbed structure, comprising the following steps:

[0061] S1. Survey the terrain and level the soil roadbed 1;

[0062] S2. Construction of the second layer of raft foundation, the construction sequence includes:

[0063] Digging foundation trench: According to the roadbed design requirements, dig the installation trench for the raft foundation 2 along the construction area, and the depth needs to be adjusted according to the project design.

[0064] Laying cushion layer: Lay cushion layer material (such as crushed stone or gravel) at the bottom of the foundation trench, with a thickness of generally 10-20cm, to ensure drainage performance and provide uniform support for the raft slab.

[0065] Installation of raft foundation layer: hoist the prefabricated reinforced concrete raft unit blocks into the foundation trench. Maintain appropriate gaps between the unit blocks to facilitate the subsequent installation of the water storage unit 3 and the layout of the drainage pipes.

[0066] Connection and fixation of raft foundation layer: Use expansion bolts or other connectors to firmly connect the unit blocks of raft foundation layer. Ensure the settlement consistency of raft foundation 2 layers as needed to avoid uneven settlement in later use.

[0067] S3, the installation of water storage unit 3 includes:

[0068] Install the water storage unit 3 module: lay the honeycomb hexagonal water storage unit 3 unit blocks in sequence on the raft foundation layer 2. Each unit block of the water storage unit 3 is closely arranged to ensure the tightness of the overall honeycomb structure.

[0069] Locking of the water storage unit 3: A through groove 362 is opened on the edge of the hexagonal top plate 36 of the water storage unit 3. When installing, a locking pin 363 is placed in the through groove 362 of the hexagonal top plate 36 to effectively fix the adjacent water storage units together to ensure the stability of the overall structure. Ensure that the three layers of honeycomb water storage units have sufficient structural strength to support the upper load after installation.

[0070] S4. Drainage system layout,

[0071] Drainage pipe installation: Drainage pipes are installed on one side of the water storage layer composed of multiple water storage units 3 to discharge excess rainwater in the water storage unit 3 to the urban drainage system or underground drainage ditch. The diameter, slope and connection method of the water storage unit 3 should be designed according to the on-site drainage conditions and rainfall to ensure that excess water can be discharged in time when the rainfall is too heavy.

[0072] Inspection well setting: Inspection wells should be set up at appropriate locations to facilitate regular inspection and cleaning of the drainage system in the future to ensure smooth drainage.

[0073] S5 , laying a permeable pavement 4 , laying a permeable pavement 4 on the plurality of water storage units 3 .

[0074] The above embodiments are only specific implementation methods of the patent of the present invention, which are used to illustrate the technical solution of the patent of the present invention rather than to limit it. The protection scope of the patent of the present invention is not limited thereto. Although the patent of the present invention is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution for implementing the patent of the present invention, and should be covered within the protection scope of the present invention.

Claims

1. A honeycomb hexagonal flood-resistant water storage roadbed structure, It is characterized in that include: A raft foundation (2) is laid on the soil roadbed (1); A plurality of water storage units (3), all of which are in the shape of hollow hexagonal prisms; the sides of the plurality of water storage units (3) are laid on the raft foundation (2) with each other in contact; the bottom and top of the plurality of water storage units (3) are respectively provided with a first water permeable hole (31) and a second water permeable hole (32); the first water permeable hole (31) is used to allow precipitation to flow into the water storage unit (3); the second water permeable hole (32) is used to allow water in the water storage unit (3) to flow into the ground; and through holes (33) communicating with adjacent water storage units (3) are provided on the six sides of the plurality of water storage units (3); a drainage pipe, arranged on the raft foundation (2), the drainage pipe being located on one side of the water storage layer formed by the plurality of water storage units (3), the drainage pipe corresponding to the through hole (33) of the outermost water storage unit (3), and the drainage pipe being used to discharge water discharged from the through hole (33) out of the roadbed structure; A permeable pavement (4) is laid above the plurality of water storage units (3).

2. A honeycomb hexagonal flood-proof water storage roadbed structure as claimed in claim 1, It is characterized in that The water storage unit (3) comprises: A hexagonal bottom plate (34) with a first hexagonal boss (341) on the top, and the first water-permeable hole (31) is arranged on the hexagonal bottom plate (34); A hexagonal prism tube (35) is arranged on a hexagonal bottom plate (34), wherein the first hexagonal boss (341) is embedded in the inner cavity of the hexagonal prism tube (35), and the through holes (33) are arranged on six side surfaces of the hexagonal prism tube (35); A hexagonal top plate (36) is arranged on the top of the hexagonal prism tube (35); a second hexagonal boss (361) embedded in the hexagonal prism tube (35) is provided at the bottom of the hexagonal top plate (36); and the second water-permeable hole (32) is arranged on the hexagonal top plate (36).

3. A honeycomb hexagonal flood-proof water storage roadbed structure as claimed in claim 2, It is characterized in that The six side walls of the hexagonal top plate (36) are all provided with through grooves (362) extending upwards in the middle, the through grooves (362) on the sides of adjacent hexagonal top plates (36) correspond to and extend through each other, and locking pins (363) are inserted into two corresponding through grooves (362), and the locking pins (363) are used to fix the water storage unit (3).

4. A honeycomb hexagonal flood-resistant water storage roadbed structure as claimed in claim 2, It is characterized in that A circular groove (364) is provided on the top of the hexagonal top plate (36), the circular groove (364) is connected to the first water permeable hole (31), and water permeable material (5) is provided in both the circular groove (364) and the first water permeable hole (31).

5. A honeycomb hexagonal flood-resistant water storage roadbed structure as claimed in claim 2, It is characterized in that A hexagonal groove (342) is provided on the first hexagonal boss (341) at the top of the hexagonal bottom plate (34), and the hexagonal groove (342) is connected to the second water permeable hole (32).

6. The honeycomb hexagonal flood-proof water storage roadbed structure according to claim 1, It is characterized in that The drainage pipe is connected to the urban drainage system.

7. A construction method of a honeycomb hexagonal flood-resistant water storage roadbed structure, based on the honeycomb hexagonal flood-resistant water storage roadbed structure according to claim 1, It is characterized in that The steps include: S1. Survey the terrain and level the soil roadbed (1); S2, the construction of the raft foundation (2), the construction sequence of which is: digging the foundation trench, laying the cushion layer, installing the raft foundation layer, and connecting and fixing the raft foundation layer; S3, installing a plurality of the water storage units (3), laying the plurality of the water storage units (3) on the raft foundation (2) in a mutually adjacent manner, and making the through holes (33) on the six sides of the plurality of the water storage units (3) communicate with the through holes (33) of adjacent water storage units (3); S4, installing a drainage pipe, and installing a drainage pipe corresponding to the through hole (33) on one side of the water storage layer formed by the plurality of water storage units (3) on the raft foundation (2); S5, laying a permeable pavement, laying a permeable pavement (4) on the plurality of water storage units (3).

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