CN105926647A - Slope greening geocell and using method thereof - Google Patents

Abstract

The invention discloses a slope greening geogrid and its use method, which comprises a stepped geogrid unit from top to bottom. As for the diversion partition between the plates, two adjacent diversion partitions are parallel to each other. The invention can effectively retain and discharge rainwater and irrigation water on the slope surface, prevent rainwater from scouring the slope surface while ensuring water for plant growth, and is beneficial to plant growth so that plant roots can better fix soil and protect slopes, and simplifies irrigation process.

Description

A slope greening geocell and its application method

technical field

The invention belongs to the technical field of slope greening devices, in particular to a slope greening geocell.

Background technique

Nowadays, most technologies use grid-type geocells, which only focus on soil consolidation on slopes, and have no relationship between the growth of multi-tube plants and natural rainfall. Plants are not easy to maintain and survive, especially in the seedling stage; Moreover, the existing geocells cannot retain rainwater, cannot make full use of rainwater for irrigation, and cannot prevent rainwater from scouring the slope; artificial spraying is generally used for plant irrigation on the slope side, and irrigation water can easily flow down in this way , the infiltration is less, so that the plant root system is still in a dry state. This method of spraying maintenance can also easily cause surface runoff on the slope surface, destroy the surface soil quality of the slope surface, and cannot play the role of replenishing water for seedlings.

Contents of the invention

In order to solve the above problems, the present invention proposes a slope greening geocell and its use method, which can effectively retain and discharge rainwater and irrigation water on the slope surface, and can prevent rainwater from scouring the slope surface while ensuring water for plant growth. , which is beneficial to plant growth, enables plant roots to better fix soil and protect slopes, and simplifies the irrigation process.

In order to achieve the above object, the technical solution adopted by the present invention is: a slope greening geocell, including a stepped geogrid unit from top to bottom, and the stepped geogrid unit includes two side baffles and fixed intervals. A diversion partition arranged between two side baffles, two adjacent diversion partitions are parallel to each other;

In the stepped geogrid unit, the side baffle adopts a parallelogram structure, and the connecting sides of the diversion partition and the side baffle are in a non-parallel connection relationship with the four sides of the parallelogram structure, and in the vertical In the vertical direction, the top edge of the flow-guiding partition is higher than the bottom edge, and the vertically penetrating cells are surrounded by the side baffles and the adjacent flow-guiding partitions. The up and down holes are not only conducive to rainwater infiltration but also conducive to root growth.

Further, a corrugated structure is adopted on the top edge of the flow guiding partition. When irrigating, the water flowing in the lower layer will form a plurality of small water flows, reducing the erosion of the water flow on the soil in the stepped geogrid unit. Suitable for dry areas.

Furthermore, a diversion notch is provided on the top edge of the diversion partition, which can effectively control the level water flow in the cells.

Further, the bottom of the diversion notch adopts an arc structure, which makes each point of the water flow through the diversion notch bear the same force, so that the water flow can smoothly flow into the lower layer.

Further, at least one side of the side baffles is juxtaposed with drainage grooves, the drainage grooves adopt a groove structure, and the side baffles at each cell are provided with drainage holes communicating with the drainage grooves ; The bottom end of the drainage hole is flat with the central area of the diversion notch. When the rainfall is too large and the water level is higher than the middle part of the diversion gap, the excess rainwater accumulated in a short period of time can flow into the drainage groove from the side drainage holes, so as to avoid the rapids generated by short-term heavy rainfall directly scouring the soil in the stepped geogrid unit downhill; Suitable for areas with abundant rainfall.

Further, the bottom of the grid is provided with a water seepage isolation net, which can ensure the regular growth of the root system while ensuring the infiltration of rainwater.

Further, fixing pieces with fixing holes are respectively provided on the bottom of the side baffles, and the side baffles are fixed on the slope ground through the fixing pieces; steel bars can be used for anchoring and fixing.

Further, the side baffle and the flow guide partition are made of high molecular polymer materials including polypropylene and polyvinyl chloride. This material can be kept for about three years, and the growth state of the plants after three years can play a good role in slope ecological protection.

Further, the pores are filled with a soil matrix including nutrient soil and a water-retaining agent, which can meet the nutrients required for plant growth while ensuring water seepage performance.

On the other hand, the present invention also proposes a method for using the slope greening geocell, comprising steps:

According to the width of the slope, a plurality of stepped geogrid units are fixed side by side on the slope of the slope;

filling the cells with a soil matrix and planting plants;

When irrigation is required, the cells on the top layer of the stepped geogrid unit are irrigated, and after the water fills the cells on the upper layer, it flows into the cells on the lower layer along the diversion plate to irrigate layer by layer;

When it rains, after the rainwater fills the upper-layer cells, the rainwater flows into the lower-layer cells along the diversion partitions, and then flows sequentially to the bottom of the slope.

A slope greening geocell proposed by the present invention has the beneficial effects of adopting the technical solution:

The geocell provided by the invention can effectively collect and infiltrate rainwater on the slope surface for plant growth, and the root system of the plant plays the role of soil consolidation and slope protection, and also plays the role of greening and beautifying the slope surface.

It can prevent rainfall from washing the slope into gullies and reduce the loss of soil quality on the slope; when there is heavy rainfall, the slope will not generate surface runoff, and all rainwater will be accumulated and infiltrated for absorption and utilization by slope shrubs.

The water used is convenient for irrigation, which is conducive to the growth of shrubs and reduces the frequency and cost of maintenance irrigation; the irrigation water pipe does not need to spray the entire slope, but only needs to pass the irrigation water pipe into the hole on the top layer of the slope to let the water flow down naturally. After one layer is full, the water will flow to the next layer along the deflector; and the soil on the slope will not be washed away with the water flow.

The invention provides different configurations according to different precipitation conditions in arid regions and regions with abundant rainwater, so as to adapt to slope protection in different regions.

Utilizing the greening geocell provided by the invention can create the same shrub planting landscape effect on the slope as on the ground, and can directly transplant ornamental flowering shrubs.

The present invention has broad application prospects: in my country, a large number of roads, railways and other infrastructure constructions are carried out, and a large number of slopes are excavated and filled, and ecological greening protection is required.

Description of drawings

Fig. 1 is the structural representation of the slope greening geocell of embodiment one among the present invention;

Fig. 2 is the bottom surface structural representation of the slope greening geocell of Embodiment 1 in the present invention;

Fig. 3 is the use effect diagram of the slope greening geocell of Embodiment 1 in the present invention;

Fig. 4 is the structural representation of the slope greening geocell of embodiment two in the present invention;

Fig. 5 is the local structure schematic diagram of the stepped geogrid unit of embodiment 2 in the present invention;

Fig. 6 is the overall structural schematic diagram of the slope greening geocell in the present invention;

Among them, 1 is a stepped geogrid unit, 11 is a side baffle, 12 is a diversion partition, 2 is a grid, 3 is a diversion gap, 4 is a drainage groove, 5 is a drainage hole, and 6 is a fixing piece.

detailed description

In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further elaborated below in conjunction with the accompanying drawings.

In the embodiment, as shown in Fig. 1, the present invention proposes a slope greening geocell, including a stepped geogrid unit 1 from top to bottom, and the stepped geogrid unit 1 includes two side stops The plate 11 and the diversion partition 12 fixedly arranged between the two side baffles 11 at intervals, and the two adjacent diversion partitions 12 are parallel to each other;

In the stepped geogrid unit 1, the side baffles 11 adopt a parallelogram structure, and the connection sides between the diversion partitions 12 and the side baffles 11 and the four sides of the parallelogram structure are non-parallel connections. , and in the vertical direction, the top edge of the diversion baffle 12 is higher than the bottom edge, and the upper and lower penetrating cells 2 are surrounded by the side baffle 11 and the adjacent diversion baffle 12; Hole 2 is not only conducive to rainwater infiltration but also conducive to root growth.

One or more flow guide partitions 12 can be provided according to the height requirement of the slope.

As an optimized example 1 of the above-mentioned embodiment, as shown in FIGS. 1-3 , a wave-shaped structure is adopted on the top edge of the flow guide baffle 12 . During irrigation, the water in the lower layer will form a plurality of small streams, reducing the erosion of the soil in the stepped geogrid unit 1 by the water stream. Suitable for dry areas.

As the second optimized example of the above implementation, as shown in Fig. 4-5, a diversion notch 3 is provided on the top edge of the diversion partition 12, which can effectively control the level water flow in the cells 2.

The bottom of the diversion gap 3 adopts an arc-shaped structure, so that every point of the water flow passing through the diversion gap bears the same force, so that the water flow smoothly flows into the lower layer.

At least one side outside the side baffle 11 is provided with drainage grooves 4 side by side. Hole 5; as shown in Figure 5, the bottom end of the drainage hole 5 is in the same level as the central area of the diversion notch 3. When the rainfall is too large and the water level is higher than the middle part of the diversion gap 3, the excess rainwater accumulated in a short period of time can flow into the drainage groove 4 from the side drain hole 5, so as to avoid the torrent produced by the short-term heavy rainfall directly scouring the soil in the hole cell 2 downhill . Suitable for areas with abundant rainfall.

As an optimized solution of the above-mentioned embodiment, a seepage isolation net is provided at the bottom of the cells 2, which can ensure the regular growth of the root system while ensuring the infiltration of rainwater.

As an optimization scheme of the above-mentioned embodiment, as shown in Figure 2, the bottom edge of the side baffle 11 is respectively provided with fixing parts 6, and the side baffle 11 is fixed on the slope ground through the fixing parts 6; Anchor fixed.

As an optimized solution of the above embodiment, the side baffles 11 and the flow guide baffles 12 are made of polymer materials including polypropylene and polyvinyl chloride. This material can be kept for about three years, and the growth state of the plants after three years can play a good role in slope ecological protection.

As an optimization scheme of the above-mentioned embodiment, as shown in FIG. 3 , the hole 2 is filled with a soil matrix including nutrient soil and a water-retaining agent, which can meet the nutrition required for plant growth while ensuring water seepage performance.

In order to cooperate with the realization of the method of the present invention, based on the same inventive concept, as shown in Figure 6, the present invention also proposes a method for using the slope greening geocell, including steps:

A plurality of stepped geogrid units 1 are fixed side by side on the slope of the slope according to the width of the slope;

filling the soil matrix in the hole 2 and planting plants;

When irrigation is needed, the cells 2 on the top layer of the stepped geogrid unit 1 are irrigated, and after the water fills the cells 2 on the upper layer, the water flows into the cells 2 on the lower layer along the diversion plate 12 for layer-by-layer irrigation;

When it rains, after the rainwater fills the upper hole 2, the rainwater flows into the lower hole 2 along the diversion partition 12, and flows sequentially to the bottom of the slope.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A slope greening geocell, is characterized in that, comprises the stepped geogrid unit (1) from top to bottom, and described stepped geogrid unit (1) comprises two side baffles (11) and The diversion partitions (12) are fixedly arranged at intervals between the two side baffles (11), and the adjacent two diversion partitions (12) are parallel to each other; In the stepped geogrid unit (1), the side baffles (11) adopt a parallelogram structure, and the connecting edge of the flow guide partition (12) and the side baffles (11) is in line with the parallelogram structure. The four sides are non-parallel connections, and the top edge of the diversion partition (12) in the vertical direction is higher than the bottom edge; by the side baffle (11) and the adjacent diversion partition ( 12) Surround the hole (2) that runs through up and down. 2. A slope greening geocell according to claim 1, characterized in that the top edge of the diversion partition (12) adopts a wave-shaped structure. 3. A slope greening geocell according to claim 1, characterized in that a diversion notch (3) is provided on the top edge of the diversion partition (12). 4. A slope greening geocell according to claim 3, characterized in that the bottom of the diversion opening (3) adopts an arc-shaped structure. 5. The slope greening geocell according to any one of claims 2-4, characterized in that, at least one side outside the side baffle (11) is provided with drainage grooves (4) side by side, The drainage groove (4) adopts a groove structure, and the side baffle plate (11) at each cell (2) is provided with a drainage hole (5) connected to the drainage groove (4); the drainage hole ( 5) and the central area of the diversion notch (3) at the same level. 6 . The slope greening geocell according to claim 1 , characterized in that, the bottom of the cells ( 2 ) is provided with a seepage isolation net. 7 . 7. A kind of slope greening geocell according to claim 1, characterized in that, the bottom edge of the side baffle (11) is respectively provided with a fixing piece (6), and the fixing piece (6) will Side baffles (11) are fixed on the slope ground. 8. A kind of slope greening geocell according to any one of claim 1, characterized in that, the side baffle (11) and the diversion partition (12) are made of polypropylene and polyvinyl chloride of polymer materials. 9 . A slope greening geocell according to claim 1 , characterized in that, the cells ( 2 ) are filled with a soil matrix comprising nutrient soil and a water-retaining agent. 10 . 10. A method for using a slope greening geocell, comprising the steps of: a plurality of stepped geogrid units (1) are fixed side by side on the slope surface of the slope according to the width of the slope surface; Fill the soil matrix and plant plants in the hole grid (2); When irrigation is required, irrigate the cells (2) on the top layer of the stepped geogrid unit (1), and the water flows into the cells on the lower layer along the diversion plate (12) after filling the cells (2) on the upper layer (2), carry out layer-by-layer irrigation; When it rains, after the rainwater fills the upper hole (2), the rainwater flows into the lower hole (2) along the diversion partition (12), and flows sequentially to the bottom of the slope.