A square landscape paving structure

Abstract

This utility model relates to a plaza landscape paving structure, including a water storage module, a permeable module, and an overflow well. The bottom of the overflow well is connected to the drainage area via a blind pipe that runs through the permeable module and the water storage module. The water storage module and the permeable module are connected. Initial rainwater can infiltrate into the ground through the permeable module; excess rainwater is temporarily stored through the water storage module. When the water storage module is full, it overflows and is transported to the overflow well. Simultaneously, the blind pipe collects excess rainwater from the water storage module and rainwater that has not infiltrated in time from the permeable module, and discharges them uniformly into the drainage area. The runoff coefficient of the plaza surface is greatly reduced, making it less prone to water accumulation, facilitating people's travel, and ensuring effective use of water resources.

Description

Technical Field

[0001] This utility model relates to the field of landscaping technology, specifically to a plaza landscape paving structure. Background Technology

[0002] As an important component of urban space, plazas not only serve as windows for promoting and showcasing the city's economy, culture, and customs, but also as spaces for people's outdoor activities. Currently, a relatively systematic set of theoretical methods and technical standards has been established in the field of urban plaza landscape design. For example, the "production-living-ecological space" symbiotic model assesses ecological effectiveness through landscape pattern indices (such as patch density and fractal dimension); circuit theory models optimize landscape connectivity; and the "neutral water grid" algorithm coordinates the relationship between water and land ecosystems. Modular paving systems and underground water storage matrices achieve the synergistic goal of stormwater regulation and mitigation of the urban heat island effect.

[0003] Currently, there are many problems in the creation of plaza landscapes in my country, such as a lack of scientific approach to combination and matching, and a failure to conform to ecological principles in maintenance and management. For example, the construction of hard paving, especially in large-area plazas, has poor permeability; when rainfall is excessive, the runoff coefficient increases, making it easy for water to accumulate, causing inconvenience to people and resulting in the ineffective loss of water resources. Utility Model Content

[0004] The purpose of this invention is to design a plaza landscape paving structure that ensures that when rainfall is excessive, the runoff coefficient does not increase significantly, rainwater can infiltrate into the ground in a timely manner, and water resources are effectively utilized.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plaza landscape paving structure, including a water storage module, a permeable module, and an overflow well. The permeable module is installed on the side of the plaza, the water storage module is installed on the side of the permeable module, and the overflow well is installed inside the water storage module. The bottom of the overflow well is connected to the drainage area through a blind pipe passing through the permeable module and the water storage module. The water storage module and the permeable module are connected.

[0006] Furthermore, the water storage module is provided with a first compacted soil layer, a permeable bearing layer, a water storage cavity, and a grass grid from bottom to top.

[0007] Furthermore, the bottom of the water storage chamber is provided with multiple water-permeable holes.

[0008] Furthermore, a permeable geotextile is provided between the water storage cavity and the permeable bearing layer.

[0009] Furthermore, the upper part of the water storage chamber is provided with an overflow port, which is connected to the water permeable module.

[0010] Furthermore, the permeable module is provided with a second compacted soil layer, a gravel layer, a permeable crushed stone layer, a permeable asphalt layer and a sand-based permeable brick layer in sequence from bottom to top.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention utilizes a water storage module, a permeable module, and an overflow well. Initial rainwater can infiltrate into the ground through the permeable module, replenishing groundwater. Excess rainwater is temporarily stored in the water storage module. When the storage module is full, it overflows and is transported to the overflow well. Simultaneously, excess rainwater in the storage module and rainwater that has not infiltrated in time in the permeable module are collected through blind pipes and discharged into the drainage area. The runoff coefficient of the plaza surface is greatly reduced, making it less prone to water accumulation, facilitating people's travel, and ensuring the effective use of water resources. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] The names of the components shown in the diagram are as follows:

[0016] 1. Water storage module; 2. Permeable module; 3. Overflow well; 4. Blind pipe; 5. First compacted soil layer; 6. Permeable bearing layer; 7. Water storage chamber; 8. Grass paver; 9. Permeable geotextile; 10. Overflow outlet; 11. Second compacted soil layer; 12. Gravel layer; 13. Permeable crushed stone layer; 14. Permeable asphalt layer; 15. Sand-based permeable brick. Detailed Implementation

[0017] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0018] Example: Figure 1As shown, a plaza landscape paving structure includes a water storage module 1, a permeable module 2, and an overflow well. The permeable module 2 is installed on the side of the plaza, and the water storage module 1 is installed on the side of the permeable module 2. The water storage module 1, from bottom to top, consists of a first compacted soil layer 5, a permeable bearing layer 6, a water storage chamber 7, and a grass paver 8. The grass paver 8 is a honeycomb-shaped grass paver made of modified HDPE material, filled with planting soil, and can be planted with varieties with well-developed root systems such as bermudagrass and tall fescue to absorb the water stored in the water storage chamber 7. As a landscape surface layer, the grass paver 8 not only meets the greening requirements but also allows rainwater to quickly infiltrate into the lower water storage chamber 7. The water storage chamber 7 serves as the core water storage space, receiving and temporarily storing rainwater from the grass pavers 8 for absorption and utilization by the plant roots within the grass pavers 8. Multiple permeable holes are located at the bottom of the water storage chamber 7. A permeable geotextile 9 is installed between the water storage chamber 7 and the permeable bearing layer 6. The permeable geotextile 9's excellent air and water permeability filters out mud, sand, and impurities from the rainwater, preventing clogging of the permeable holes at the bottom of the water storage chamber 7. An overflow outlet 10 is located at the top of the water storage chamber 7, connected to the permeable module 2 to prevent rainwater from flowing back from the water storage chamber 7 to the grass pavers 8, thus avoiding excessive water absorption by the plants. An overflow well is installed inside the water storage module 1. The bottom of the overflow well is connected to the drainage area via a blind pipe 4, which runs through the permeable module 2 and the water storage module 1. When the total amount of rainwater exceeds the storage capacity of the water storage module 1 and the infiltration capacity of the permeable module 2, it is responsible for quickly draining the excess rainwater to the drainage area. When the rainwater level in the system exceeds the drainage threshold of the overflow well, the rainwater is quickly discharged through the blind pipe 4, preventing water accumulation on the plaza surface. The permeable bearing layer 6 is made of permeable concrete with a porosity of 18%-20%, supporting the upper structure. Simultaneously, rainwater can further infiltrate to the first compacted soil layer 5, replenishing groundwater. The first compacted soil layer 5 forms the foundation of the entire pavement structure, ensuring the overall stability of the water storage module 1 and preventing settlement.

[0019] The permeable module 2 consists of, from bottom to top, a second compacted soil layer 11, a gravel layer 12, a permeable crushed stone layer 13, a permeable asphalt layer 14, and sand-based permeable bricks 15. The sand-based permeable bricks 15 are formed by bonding silica sand with a high-molecular polymer, exhibiting high permeability and directly absorbing rainwater from the plaza surface, quickly channeling it to the lower layers. The permeable asphalt layer 14 uses OGFC-13 gradation with a porosity of 18%-20%. Connecting the sand-based permeable bricks 15 and the permeable crushed stone layer 13, the permeable asphalt layer 14 provides both load-bearing capacity and allows rainwater to vertically infiltrate into the permeable crushed stone layer 13. The permeable crushed stone layer 13 filters rainwater through the gaps between the crushed stones, trapping larger impurities and guiding rainwater towards the gravel layer 12. The larger gravel particles in the gravel layer 12 create unobstructed infiltration channels, accelerating rainwater infiltration into the second compacted soil layer 11 and replenishing groundwater. The second subgrade compacted layer 11 serves as the foundation layer, ensuring the structural stability of the permeable module 2, while allowing some rainwater to further infiltrate into the deeper soil.

[0020] The working principle of this embodiment:

[0021] During normal rainfall, the water storage module 1 and the permeable module 2 work independently. The water storage module 1 collects rainwater through the grass grid 8 and stores it in the water storage chamber 7. Excess rainwater infiltrates into the ground through the permeable holes of the water storage chamber 7 and the permeable bearing layer 6. The permeable module 2 rapidly infiltrates rainwater through layers such as sand-based permeable bricks 15, permeable asphalt layer 14, permeable crushed stone layer 13, gravel layer 12, and gravel layer 12 to replenish groundwater.

[0022] During heavy rainfall, the water storage module 1 fills first and then overflows. When the water level in the storage chamber 7 rises to the overflow outlet 10, excess rainwater flows into the permeable module 2 through the overflow outlet 10. The permeable module 2 further absorbs the excess water, preventing water accumulation in the water storage module 1. When the total amount of rainwater exceeds the storage capacity of the water storage module 1 and the infiltration capacity of the permeable module 2, the rainwater flows into the overflow well. At the same time, the excess rainwater in the water storage module 1 and the rainwater that has not infiltrated in the permeable module 2 are collected through the blind pipe 4 and discharged into the drainage area, forming a three-level protection system of "storage, infiltration, and emergency discharge".

[0023] This system achieves coordinated water storage by the water storage module 1, infiltration by the permeable module 2, and emergency drainage by the overflow well. It realizes the resource utilization, ecological replenishment, and safe discharge of rainwater, and is a paving system that combines aesthetics and ecology. At the same time, the runoff coefficient of the plaza surface is greatly reduced, making it less prone to water accumulation, facilitating people's travel, and ensuring the effective utilization of water resources.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "upper," "lower," "left," "right," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0025] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A plaza landscape paving structure, characterized by: It includes a water storage module, a permeable module, and an overflow well. The permeable module is installed on the side of the square, the water storage module is installed on the side of the permeable module, and the overflow well is installed inside the water storage module. The bottom of the overflow well is connected to the drainage area through a blind pipe that passes through the permeable module and the water storage module. The water storage module and the permeable module are connected.

2. The plaza landscape pavement structure according to claim 1, characterized in that: The water storage module consists of, from bottom to top, a first compacted soil layer, a permeable bearing layer, a water storage cavity, and a grass grid.

3. The plaza landscape pavement structure according to claim 2, characterized in that: The bottom of the water storage chamber has multiple water-permeable holes.

4. The plaza landscape pavement structure according to claim 3, characterized in that: A permeable geotextile is provided between the water storage cavity and the permeable bearing layer.

5. The plaza landscape pavement structure according to claim 2, characterized in that: The upper part of the water storage chamber is provided with an overflow port, which is connected to the water permeable module.

6. The plaza landscape pavement structure according to claim 1, characterized in that: The permeable module consists of, from bottom to top, a second compacted soil layer, a gravel layer, a permeable crushed stone layer, a permeable asphalt layer, and a sand-based permeable brick.

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