A highway slope protection device

Abstract

The application belongs to the technical field of slope protection, and particularly relates to a highway slope protection device, which comprises hollow slope protection bricks and anchor rods. The upper surface of the hollow slope protection bricks is provided with a drainage groove, and the drainage groove is provided with a counterbore for mounting the anchor rods. The center line of the anchor rod is provided with a water supplement channel, and the water supplement channel is provided with an opening and closing member for controlling the opening and closing of the water supplement channel according to the soil moisture content. Through the cooperation of the above structure, the rainwater can be used as a water supplement source according to the soil moisture content of the slope, and the water vapor in the condensed air can be collected as a soil water supplement source at night, so as to avoid the decrease in stability caused by the dry cracking of the highway slope, promote the growth of the slope vegetation, and enhance the ecological soil fixation capacity.

Description

Technical Field

[0001] This invention belongs to the field of slope protection technology, specifically a highway slope protection device. Background Technology

[0002] As a core component of transportation infrastructure, highways have slopes with a certain gradient formed on both sides of the roadbed to ensure roadbed stability. According to their formation, these slopes can be divided into natural slopes and artificial slopes. Their protection systems include engineering protection (anti-slide piles, retaining walls, anchored concrete panels) and ecological protection (vegetation nets, hydroseeding). Existing slope protection often adopts a mechanical soil stabilization plus ecologically compatible scheme, that is, hollow slope protection bricks are evenly laid on the slope, and vegetation is planted in the hollow parts of the hollow slope protection bricks. The hollow slope protection bricks are positioned and fixed by anchors.

[0003] However, the aforementioned slope protection methods often have the following drawbacks: the irrigation and drainage of existing slopes rely on independent systems, and it is impossible to actively replenish water according to the soil moisture content during rainy weather. The survival rate of vegetation is highly dependent on artificial maintenance and natural rainfall. If there is continuous drought or heavy rain, the vegetation is prone to withering or being washed away, resulting in the failure of the ecological anchoring function. Furthermore, the drastic fluctuations in soil moisture content will exacerbate the deterioration of the physical properties of the soil, further weakening the overall stability of the slope.

[0004] Therefore, the present invention provides a highway slope protection device. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies and solve the problem mentioned in the background technology that existing slope protection technologies cannot actively replenish water based on the soil moisture content during rainy weather.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a highway slope protection device, including hollow slope protection bricks and anchor rods. The upper surface of the hollow slope protection bricks is provided with drainage grooves, and the drainage grooves are provided with countersunk holes for installing anchor rods. A water replenishment channel is provided at the center line of the anchor rods, and the water replenishment channel is provided with an opening and closing device that can control its opening and closing according to the soil moisture content.

[0007] Furthermore, the cross-section of the hollow slope protection brick is a regular hexagon, and the countersunk holes on adjacent hollow slope protection bricks are arranged in a staggered manner.

[0008] Furthermore, the anchor rod is divided into a connecting part and a drainage part from top to bottom. The axial dimension of the connecting part is adapted to the depth of the counterbore, and the drainage part adopts a porous drainage structure with a closed lower end.

[0009] Furthermore, the opening and closing element is made of porous alumina ceramic particles, and the diameter of the porous alumina ceramic particles gradually increases from top to bottom.

[0010] Furthermore, a filter plate is embedded at the upper opening of the water supply channel, and the filter plate has a pore size of 1-3 mm.

[0011] Furthermore, the hollow slope protection bricks have water guide channels uniformly formed on the outer side of their upper surface, which are connected to the drainage ditch.

[0012] Furthermore, the lower end of the hollow slope protection brick is provided with a corrugated groove.

[0013] Furthermore, the upper surface of the hollow slope protection brick is provided with micron-level concave-convex texture, and water collection grooves are formed between the micron-level concave-convex textures, with the slope of the water collection grooves facing the drainage ditch.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. The highway slope protection device of the present invention allows rainwater to be guided into the slope soil layer through a water replenishment channel opened at the center line of the anchor bolt. The opening and closing device set in the water replenishment channel can be used to regulate the soil moisture content of the slope, thereby avoiding the probability of landslides caused by excessive soil moisture during heavy rain.

[0016] 2. The highway slope protection device described in this invention accelerates the heat dissipation efficiency of hollow slope protection bricks through the water replenishment channel opened by the anchor bolts. This allows the hollow slope protection bricks to condense and collect water vapor at night, which is then guided into the soil through the drainage ditch and water replenishment channel. This enables the collection and utilization of water vapor in the air, reduces dependence on rainwater irrigation, and allows slope vegetation to maintain growth even during periods without rainfall, preventing soil cracking and instability. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is the front view of the present invention;

[0020] Figure 3 This is a perspective view of the hollow slope protection bricks in this invention;

[0021] Figure 4 This is a sectional perspective view of the hollow slope protection brick in this invention;

[0022] Figure 5 This is a three-dimensional cross-sectional view of the anchor bolt portion in this invention;

[0023] Figure 6 This is a front view of the hollow slope protection brick in Embodiment 2 of the present invention.

[0024] In the diagram: 1. Hollow slope protection brick; 2. Anchor bolt; 3. Opening and closing component; 4. Filter plate; 5. Water collection ditch; 20. Connecting part; 21. Drainage part; 100. Drainage ditch; 101. Countersunk hole; 102. Water guide channel; 103. Corrugated ditch; 200. Water replenishment channel. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] Example 1: As Figures 1 to 5 As shown in the figure, a highway slope protection device according to an embodiment of the present invention includes hollow slope protection bricks 1 and anchor rods 2. The upper surface of the hollow slope protection bricks 1 is provided with drainage grooves 100, and the drainage grooves 100 are provided with countersunk holes 101 for installing anchor rods 2. A water replenishment channel 200 is provided at the center line of the anchor rods 2, and the water replenishment channel 200 is provided with an opening and closing component 3 for controlling its opening and closing according to the soil moisture content. The cross section of the hollow slope protection bricks 1 is a regular hexagon, and the countersunk holes 101 on adjacent hollow slope protection bricks 1 are staggered, so that the anchor rods 2 are more evenly distributed, avoiding uneven water replenishment to the slope soil caused by adjacent anchor rods 2 being too close, which would reduce the structural stability of the slope soil. At the same time, the water replenishment channel 200 opened by the anchor rods 2 accelerates the heat dissipation efficiency inside the hollow slope protection bricks 1, thereby realizing the condensation of water vapor at night and collecting it as a water replenishment source.

[0027] like Figure 5 As shown, the anchor rod 2 is divided into a connecting part 20 and a drainage part 21 from top to bottom. The axial dimension of the connecting part 20 is adapted to the depth of the countersunk hole 101, and the drainage part 21 adopts a porous drainage structure with a closed lower end. Rainwater from the water supply channel 200 seeps into the soil outside the anchor rod 2 through the drainage part 21, while preventing soil from entering the water supply channel 200 and causing blockage when the anchor rod 2 is installed.

[0028] The opening and closing component 3 is made of porous alumina ceramic particles, and the diameter of the porous alumina ceramic particles gradually increases from top to bottom. By utilizing the capillary force difference of the pore structure of the porous alumina ceramic particles, the physical characteristics of water shortage conduction and saturation blockage are realized, thereby stopping water replenishment when the soil moisture content of the slope is high.

[0029] A filter plate 4 is embedded at the upper opening of the water supply channel 200, and the pore diameter of the filter plate 4 is 1-3 mm. The filter plate 4 can block the mud and prevent the water supply channel 200 and the opening and closing parts 3 from being buried.

[0030] like Figure 2As shown, the upper surface of the hollow slope protection brick 1 is uniformly provided with water guide grooves 102 that are connected to the drainage ditch 100, so that the drainage ditch 100 on two adjacent hollow slope protection bricks 1 are connected, thereby improving the drainage efficiency of the hollow slope protection brick 1.

[0031] like Figure 4 As shown, the lower end of the hollow slope protection brick 1 is provided with a corrugated groove 103 to increase the gap between the soil and the bottom surface of the hollow slope protection brick 1, and to avoid the compaction of the soil at the bottom of the hollow slope protection brick 1.

[0032] Example 2: Figure 6 As shown in Example 1, another embodiment of the present invention is as follows:

[0033] like Figure 6 As shown, the upper surface of the hollow slope protection brick 1 is provided with micron-level concave and convex textures, and water collection grooves 5 are formed between the micron-level concave and convex textures, which increases the surface contact area between the hollow slope protection brick 1 and the air, and improves the efficiency of condensation of water vapor at night. At the same time, the slope of the water collection groove 5 is controlled to be set towards the drainage ditch 100, so that the condensate flows into the drainage ditch 100 after being collected by the water collection groove 5, and finally, it is guided by the drainage ditch 100 and then watered by the water replenishment channel 200 to replenish the dry soil.

[0034] Working principle: During rainfall, rainwater falls on the surface of the hollow slope protection brick 1. The drainage ditch 100 on the upper part of the hollow slope protection brick 1 collects the rainwater. The rainwater flows into the water replenishment channel 200 in the anchor rod 2 through the sinkhole 101 in the drainage ditch 100. The capillary force difference of the porous alumina ceramic particles is used to achieve the physical characteristics of water shortage conduction and saturation blockage. When the soil is dry, the gap between the soil particles forms a capillary pressure difference, which allows rainwater to seep into the soil through the water-draining part 21 of the anchor rod 2. When the soil moisture content of the slope is high, the capillary pressure difference decreases, so that the water no longer seeps into the soil.

[0035] During periods of high daytime temperatures, the water supply channel 200 of the anchor bolt 2 penetrates the hollow slope protection brick 1 and the soil, allowing the interior of the hollow slope protection brick 1 to exchange heat with the external environment through the water supply channel 200. At the same time, the evaporation of a small amount of water in the water supply channel 200 carries away heat, reducing the temperature of the slope protection brick and the surface soil, and preventing the soil from cracking due to high temperatures.

[0036] At night when the temperature is low, the water supply channel 200 inside the anchor bolt 2 is used to accelerate the heat dissipation efficiency of the hollow slope protection brick 1, so that the temperature of the hollow slope protection brick 1 can be quickly reduced to below the air dew point. This causes the water vapor in the air to condense into water droplets on the side wall of the drainage ditch 100 of the brick body. The condensed water droplets accumulate in the drainage ditch 100 and then enter the water supply channel 200 of the anchor bolt 2 through the countersunk hole 101, and finally penetrate into the soil through the opening and closing device 3.

[0037] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0038] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highway slope protection device, comprising hollow slope protection bricks (1) and anchor bolts (2), characterized in that: The upper surface of the hollow slope protection brick (1) is provided with a drainage ditch (100), and a countersunk hole (101) for installing the anchor rod (2) is opened in the drainage ditch (100). A water supply channel (200) is opened at the center line of the anchor rod (2), and an opening and closing device (3) is provided in the water supply channel (200) for controlling its opening and closing according to the soil moisture content.

2. The highway slope protection device according to claim 1, characterized in that: The cross-section of the hollow slope protection brick (1) is a regular hexagon, and the countersunk holes (101) on adjacent hollow slope protection bricks (1) are staggered.

3. A highway slope protection device according to claim 2, characterized in that: The anchor rod (2) is divided into a connecting part (20) and a drainage part (21) from top to bottom. The axial dimension of the connecting part (20) is adapted to the depth of the countersunk hole (101), and the drainage part (21) adopts a porous drainage structure with a closed lower end.

4. A highway slope protection device according to claim 3, characterized in that: The opening and closing element (3) is made of porous alumina ceramic particles, and the diameter of the porous alumina ceramic particles gradually increases from top to bottom.

5. A highway slope protection device according to claim 4, characterized in that: A filter plate (4) is embedded at the upper opening of the water supply channel (200), and the pore size of the filter plate (4) is 1-3 mm.

6. A highway slope protection device according to claim 5, characterized in that: The hollow slope protection brick (1) has a water guide channel (102) evenly opened on the outer side of its upper surface, which is connected to the drainage ditch (100).

7. A highway slope protection device according to claim 6, characterized in that: The lower end of the hollow slope protection brick (1) is provided with a corrugated groove (103).

8. A highway slope protection device according to claim 1, characterized in that: The upper surface of the hollow slope protection brick (1) is provided with micron-level concave and convex textures, and water collection grooves (5) are formed between the micron-level concave and convex textures. The slope of the water collection grooves (5) is set towards the drainage ditch (100).

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