Convenient fixed type compression-resistant and scouring-resistant ecological grid structure

Abstract

The utility model provides a convenient fixed type compression-resistant and scouring-resistant ecological grid structure. The convenient fixed type compression-resistant and scouring-resistant ecological grid structure comprises ecological grid units and connecting pieces, each ecological grid unit comprises a lower grid net layer, a middle grid net layer and an upper grid net layer; a geotechnical cloth layer is laid on the top of the lower grating net layer; a lower grating support is arranged between the middle grating net layer and the lower grating net layer; the cross section of the lower grid support is wave-shaped; an upper grating support is arranged between the middle grating net layer and the upper grating net layer; the longitudinal section of the upper grille support is wave-shaped; the connecting piece is in an inverted U shape; the lower ends of the vertical edges on the two sides of the connecting pieces exceed the bottom surfaces of the ecological grid units; thorns are arranged on the parts, exceeding the bottoms of the ecological grid units, of the vertical edges on the two sides of the connecting pieces; and environment monitoring sensors are mounted in the ecological grid units. The ecological reinforcing structure solves the technical problems that a traditional ecological reinforcing structure is complex in construction, difficult to meet efficient and convenient construction requirements and relatively high in manufacturing and mounting cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of side slope reinforcement, in particular to a convenient fixed type ecological grid structure of compression resistance and scour resistance. BACKGROUND

[0002] With the acceleration of urbanization, side slope protection and reinforcement engineering are paid more and more attention, especially in mining, road construction, dam reinforcement and other engineering, the side slope stability problem becomes the key of safety management. The existing side slope reinforcement method mostly adopts the traditional reinforced concrete structure or anchoring pile scheme, these methods are usually complicated in construction, high in cost, and may cause great influence on the environment, and cannot be well integrated with the natural environment.

[0003] To solve the above problems, more and more ecological reinforcement technologies emerge as the times require. The existing ecological reinforcement structure generally adopts mechanical weaving into gabion net, this structure is widely used in traffic, water conservancy, municipal administration, landscape and soil and water conservation side slope stability projects, but it also has certain defects: the construction is relatively complex, and it is often difficult to meet the efficient and convenient construction requirements. In addition, the manufacturing and installation cost of the gabion net is also relatively high, and the later maintenance work is difficult. Therefore, a new, convenient and efficient ecological grid structure with fixing function is needed to improve the construction efficiency and speed up the side slope repair process. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a convenient fixed type ecological grid structure of compression resistance and scour resistance, and solves the technical problems that the traditional ecological reinforcement structure is relatively complex in construction, and is often difficult to meet the efficient and convenient construction requirements, and the manufacturing and installation cost is also relatively high.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme.

[0006] The utility model provides a kind of portable fixed anti-pressure anti-scouring ecological grid structure, including a group of ecological grid unit and the connecting piece connecting adjacent ecological grid unit;The ecological grid unit includes lower grid net layer, intermediate grid net layer and upper grid net layer;Geotextile layer is laid on the top of lower grid net layer;The intermediate grid net layer is arranged directly above lower grid net layer, and lower grid support is arranged between intermediate grid net layer and lower grid net layer;The cross section of lower grid support is wave-shaped;The upper grid net layer is arranged directly above intermediate grid net layer;Upper grid support is arranged between intermediate grid net layer and upper grid net layer;The longitudinal section of upper grid support is wave-shaped, and upper grid support and lower grid support are all formed by grid net bending;Lower grid net layer, intermediate grid net layer, upper grid net layer, upper grid support and lower grid support are stitched into one by stitching technique;The connecting piece is inverted U-shaped, and is arranged along the joint of adjacent ecological grid unit;The horizontal side of connecting piece is pressed on the side of ecological grid unit, and the lower end of vertical side of connecting piece is beyond the bottom surface of ecological grid unit;The vertical side of connecting piece is provided with thorn beyond the bottom of ecological grid unit;Environment monitoring sensor is installed in the ecological grid unit, and environment monitoring sensor is connected with remote control center by wireless network, to realize real-time data transmission and remote monitoring.

[0007] Preferably, a group of ecological grid units are laid on the slope, and anchor trench is dug on the top of the slope, with a distance of 40-80cm from the edge of the top of the slope, and the upper end of the uppermost ecological grid unit is buried in the anchor trench.

[0008] Preferably, sand and stone layer with good water permeability is filled between the intermediate grid net layer and the lower grid net layer of a group of ecological grid units, and planting soil layer is laid on the intermediate grid net layer and the upper grid net layer of a group of ecological grid units and the outer surface of a group of ecological grid units;The outer surface of the planting soil layer is beyond the outer surface of the upper grid net layer, and the thickness of the beyond part is not less than 12mm.

[0009] Preferably, the ecological grid unit and the connecting piece are connected by binding.

[0010] Preferably, two adjacent ecological grid units are connected by hanging, and the ecological grid unit on one side of the joint is provided with a hook, which is hung on the ecological grid unit on the other side of the joint.

[0011] Preferably, the thorn is arranged on the lower part of the vertical side of the connecting piece, the lower end of the thorn is connected with the vertical side of the connecting piece, and the upper end of the thorn is spaced from the vertical side of the connecting piece.

[0012] Compared with the prior art, the utility model has the following characteristics and beneficial effects.

[0013] 1. The grid structure of the utility model is composed of multiple grid units, the grid units are connected through connecting pieces, a stable grid structure is formed, the modular structure design makes the whole grid structure easy to install and disassemble, greatly saves construction time and cost. Meanwhile, the ecological grid unit of the utility model is combined through the lower grid net layer, the middle grid net layer and the upper grid net layer, and the upper and lower grid supports are in a wave shape; the upper and lower grid supports are arranged vertically, which greatly enhances the stability and bearing capacity of the whole ecological grid structure. The multi-level and wave-shaped structure design helps to disperse and resist external forces such as soil pressure and water pressure, thereby improving the anti-deformation and anti-erosion performance of the structure.

[0014] 2. The utility model sets up multi-level structure, fills the sand and stone layer with good water permeability between the middle grid net layer and the lower grid net layer, and lays the planting soil layer between the middle grid net layer and the upper grid net layer, which not only provides a good substrate for vegetation growth, but also shows significant beneficial effects in terms of slope drainage, including good water permeability of the sand and stone layer, promotion of natural convection exchange of water body and prevention of water and soil loss. In addition, the outer surface of the planting soil layer exceeds the upper grid net layer, providing more growth space and better root fixation for vegetation, which helps to quickly restore and protect the ecological environment.

[0015] 3. The utility model is convenient to install and fix: through the inverted U-shaped connecting piece and the thorn design, the ecological grid unit can be conveniently and quickly connected and fixed on the slope. The thorn is arranged on the part where the vertical edge lower end of the connecting piece exceeds the bottom surface of the ecological grid unit, which enhances the anchoring effect. In addition, binding is adopted between the connecting piece and the grid unit to prevent the sliding and falling of the grid unit; the design of the hook connection mode provides temporary fixation during installation, avoiding the displacement of the grid unit during the installation process, further improving the flexibility and convenience of installation.

[0016] 4. The lower grid net layer, the middle grid net layer, the upper grid net layer, the lower grid support and the upper grid support of the utility model are all made of grids, and there is a certain gap between the grid nets, so that water can pass through smoothly, and the water permeability is good. The water permeability of the grid structure enables the water body to form natural convection exchange between the inside of the slope and the soil body below the slope, which helps to maintain the flow and update of the water body. This water convection exchange function helps to reduce the accumulation and retention of water body in the inside of the slope, thereby reducing the damage caused by water static pressure.

[0017] 5, The ecological grid structure has good reinforcing effect: the structure design can ensure that the slope soil is effectively reinforced, especially on the slope with large slope or loose soil, can provide strong supporting force, prevent slope landslide or collapse. By implanting plant seeds, the grid structure can naturally integrate into the environment, realize green reinforcement, meet the needs of ecological protection, and reduce the interference to the ecological environment. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further explained in detail in combination with the drawings.

[0019] Figure 1 It is the structure schematic view of the ecological grid structure in the utility model is arranged on the slope.

[0020] Figure 2 It is the three-dimensional structure schematic view of the ecological grid unit in the utility model.

[0021] Figure 3 It is the side structure schematic view of the ecological grid unit in the utility model.

[0022] Figure 4 It is the connecting structure schematic view of adjacent ecological grid units in the utility model

[0023] Reference signs: 1-ecological grid unit, 1.1-lower grid net layer, 1.2-intermediate grid net layer, 1.3-upper grid net layer, 1.4-geotextile layer, 1.5-lower grid support, 1.6-upper grid support, 2-connector, 3-harpoon, 4-anchoring ditch, 5-bundling piece, 6-sand and gravel layer, 7-planting soil layer, 8-hook, 9-environmental monitoring sensor. DETAILED DESCRIPTION

[0024] As Figures 1-4As shown, the convenient fixed compression and scouring resistant ecological grid structure includes a group of ecological grid units 1 and connecting members 2 connecting adjacent ecological grid units 1; the ecological grid unit 1 includes a lower grid layer 1.1, an intermediate grid layer 1.2 and an upper grid layer 1.3; a geotextile layer 1.4 is laid on the top of the lower grid layer 1.1; the geotextile layer 1.4 can effectively intercept soil particles and prevent them from flowing away through the grid gap. This is crucial for maintaining soil stability inside the ecological grid structure, especially under water flow scouring or wind action, the geotextile can significantly reduce soil erosion and loss, and maintain soil thickness and fertility. The intermediate grid layer 1.2 is arranged directly above the lower grid layer 1.1, and a lower grid support 1.5 is arranged between the intermediate grid layer 1.2 and the lower grid layer 1.1; the cross section of the lower grid support 1.5 is wave-shaped; the upper grid layer 1.3 is arranged directly above the intermediate grid layer 1.2, and the grid size of the intermediate grid layer 1.2 is smaller than that of the upper grid layer 1.3; the grid size of the intermediate grid layer 1.2 is smaller than that of the upper grid layer 1.3, and the smaller grid size of the intermediate grid layer enhances the structural stability of the entire ecological grid unit. When subjected to external forces, it can better disperse and resist pressure, prevent structural deformation or damage, and at the same time, the larger grid size of the upper grid layer provides more space for plant root growth. The root system can extend downward along the grid gap to form a more extensive root network, and the smaller grid size of the lower grid layer enhances the root stability and wind resistance of the plant, meeting the growth needs of the plant; an upper grid support 1.6 is arranged between the intermediate grid layer 1.2 and the upper grid layer 1.3; the longitudinal section of the upper grid support 1.6 is wave-shaped, and the upper grid support 1.6 and the lower grid support 1.5 are both formed by bending the grid; the lower grid layer 1.1, the intermediate grid layer 1.2, the upper grid layer 1.3, the upper grid support 1.6 and the lower grid support 1.5 are sewn together by sewing technology; the connecting member 2 is inverted U-shaped and arranged along the joint of adjacent ecological grid units 1; the horizontal edge of the connecting member 2 is crimped on the side edge of the ecological grid unit 1, and the vertical edges on both sides of the connecting member 2 extend beyond the bottom surface of the ecological grid unit 1; thorns 3 are arranged on the part of the vertical edges of the connecting member 2 that extends beyond the bottom of the ecological grid unit 1; environmental monitoring sensors 9 are installed in the ecological grid unit 1, and the environmental monitoring sensors 9 are connected to the remote control center through wireless network to realize real-time data transmission and remote monitoring; the environmental monitoring sensors 9 are soil humidity sensors, water quality monitoring sensors, etc.

[0025] In the embodiment, the upper grid layer 1.3, the lower grid layer 1.1 and the middle grid layer 1.2 are made of PP material or PE material or stainless steel material, and the thread used in sewing is iron wire or high-strength synthetic fiber thread; the high-strength synthetic fiber thread is, for example, nylon thread or polyester thread; the upper grid layer 1.3, the lower grid layer 1.1 and the middle grid layer 1.2 are all rectangular grid shapes, the side length of the grid hole is not less than 2.5 mm, the tensile strength of the rectangular grid is greater than or equal to 120 N / m, and the distance between adjacent grid layers is not less than 30 mm; the upper grid support 1.6 and the lower grid support 1.5 are made of the same rectangular grid material as the grid layer and are bent and formed.

[0026] In the embodiment, a group of ecological grid units 1 are laid on the slope, an anchoring trench 4 is dug at the top of the slope, the distance between the anchoring trench 4 and the edge of the slope top is 40-80 cm, and the upper end of the uppermost layer of ecological grid units 1 is buried in the anchoring trench 4; a drainage trench is dug at the bottom of the slope, and the water flowing down from the slope is drained away through the drainage trench.

[0027] In the embodiment, a layer of sand and stone 6 with good water permeability is filled between the middle grid layer 1.2 and the lower grid layer 1.1 of a group of ecological grid units 1, and a layer of planting soil 7 is covered on the middle grid layer 1.2 and the upper grid layer 1.3 of a group of ecological grid units 1 and on the outer surface of a group of ecological grid units 1; the outer surface of the layer of planting soil 7 exceeds the outer surface of the upper grid layer 1.3, and the thickness of the excess part is not less than 12 mm; the layer of planting soil 7 is uniformly covered on the ecological grid units 1, covering the grid, until there is no empty grid; the layer of planting soil 7 includes soil, water, organic fertilizer, plant fiber and ecological glue, etc.; the organic fertilizer is a compound fertilizer with nitrogen: phosphorus: potassium = 15: 15: 15 or nitrogen: phosphorus: potassium = 10: 8: 7 and contains N organic matter, and the fertilizer amount is about 30-50 g / ㎡.

[0028] In the embodiment, the ecological grid unit 1 and the connecting piece 2 are connected by binding with a binding piece 5.

[0029] In the embodiment, two adjacent ecological grid units 1 are connected by hanging; a hook 8 is arranged on the ecological grid unit 1 on one side of the joint; the hook 8 is hung on the ecological grid unit 1 on the other side of the joint; among two ecological grid units 1 arranged along the slope, the hook 8 is arranged on the lower ecological grid unit 1, and the lower ecological grid unit 1 is hung on the upper ecological grid unit 1.

[0030] In the embodiment, the barbs 3 are arranged at intervals at the lower part of the vertical edge of the connecting piece 2, the lower end of the barb 3 is connected with the vertical edge of the connecting piece 2, there is a distance between the upper end of the barb 3 and the vertical edge of the connecting piece 2, the included angle between the barb 3 and the vertical edge of the connecting piece 2 is 30-45 degrees, and the part of the connecting piece 2 where the barb 3 is arranged is buried in the soil of the slope.

[0031] The manufacturing of the convenient fixed type ecological grid structure resisting compression and scouring is as follows: firstly, the upper grid support 1.6 and the lower grid support 1.5 are formed into a grid through the upper and lower heating plates of a folding machine, and then naturally cooled and shaped; then the upper, middle and lower grid net layers, the geotextile and the upper grid support 1.6 and the lower grid support 1.5 are coincided and sewn into an integrated whole through a sewing machine after a bending machine. According to the specific conditions of the slope, the suitable grid mesh size and support structure are selected.

[0032] The construction steps of the grid structure installed on the slope are as follows.

[0033] Step 1, slope treatment: clean the miscellaneous stones and debris on the slope, backfill and tamp the low-lying place to be flat, and ensure the smoothness of the slope surface.

[0034] Step 2, ecological grid unit 1 laying: lay the high-strength compression-resistant and scour-resistant ecological grid unit 1 on the slope surface from top to bottom along the slope surface, and keep the smooth combination between the net and the slope surface; the uppermost ecological grid unit 1 needs to be extended by 40-80cm when laid on the top of the slope, and buried in the groove 0 and compacted.

[0035] Step 3, anchoring: anchor the ecological grid unit 1 by using the connecting piece 2, the width of the connecting piece 2 is about 8cm, the distance between the adjacent connecting pieces 2 is 1.5-2.5m, and the middle steel nails or iron nails are used for auxiliary fixing.

[0036] Step 4, soil covering: after the ecological grid unit 1 is laid, fill the sand and stone between the middle grid net layer 1.2 and the lower grid net layer 1.1, evenly cover the planting soil between the middle grid net layer 1.2 and the upper grid net layer 1.3 and the outside of the ecological grid unit 1, cover the grid structure, until there is no empty package, and ensure that the thickness of the soil on the grid structure is not less than 12mm; then mix the soil, fertilizer, growth hormone and adhesive in a certain proportion, and apply them to the surface layer; the fertilizer is a compound fertilizer with nitrogen: phosphorus: potassium = 15: 15: 15 or nitrogen: phosphorus: potassium = 10: 8: 7, and the N-containing organic matter, and the fertilizer amount is about 30-50g / ㎡.

[0037] Step 5, covering: after the spray seeding and grass planting construction is completed, cover the non-woven fabric on the surface of the planting soil layer 7 to maintain the moisture of the slope surface and reduce the scouring of the seeds by rainfall, and promote the growth of the seeds. If the temperature is too high, no covering is needed to prevent the occurrence of diseases and pests.

[0038] Step 6, maintenance and management: after the spray seeding and grass planting construction is completed, regular maintenance is necessary until the lawn is formed; when the lawn grows to about 5cm, the non-woven fabric on the surface can be removed.

[0039] In the embodiment, the geotextile layer 1.4 adopts polypropylene filament non-woven geotextile; the polypropylene filament non-woven geotextile adopts melt spinning method; and the steps are as follows:

[0040] Step one, add polypropylene resin and anti-aging master batch into the mixing system, and put the prepared raw materials into the extrusion system according to the process requirements.

[0041] Step two, the two extruders can run simultaneously; the prepared raw materials are melted and fed into the spinning system; the materials are metered and conveyed to the spinneret through the spinning box, forming a plurality of filaments of a certain fineness; then the filaments are cooled by side blowing to ensure that the nascent fibers meet the process requirements.

[0042] Step three, over-drawing, to improve the performance of the fiber.

[0043] Step four, the fibers are adsorbed on the forming screen, moved longitudinally to the forming system, and sprayed with oil at the same time.

[0044] Step five, the formed fiber web is formed and reinforced by pre-needling and main needling machine to form a three-dimensional structure of the gray fabric.

[0045] Step six, enter the stretching process, stretch the fabric horizontally to meet the preliminary width requirements.

[0046] Step seven, then pass through the third needle-punching consolidation to improve the overall mechanical indicators of the filament fabric.

[0047] Step eight, over-drawing and setting, stretch the gray fabric horizontally to meet the process requirements of the product.

[0048] Step nine, the products with thickness requirements are further processed by hot rolling process, and the products without requirements are not hot rolled.

[0049] Step ten, finally cut the raw edges and roll them up.

[0050] The above examples are not an exhaustive enumeration of specific embodiments, and there can be other examples. The purpose of the above examples is to illustrate the utility model, not to limit the protection scope of the utility model, and all applications derived from the simple changes of the utility model fall within the protection scope of the utility model.

Claims

1. A portable and fixed anti-erosion and anti-crushing ecological grid structure, comprising a group of ecological grid units (1) and connecting members (2) connecting adjacent ecological grid units (1); characterized in that: The ecological grid unit (1) comprises a lower grid layer (1.1), a middle grid layer (1.2) and an upper grid layer (1.3); a geotextile layer (1.4) is laid on the top of the lower grid layer (1.1); the middle grid layer (1.2) is arranged directly above the lower grid layer (1.1), and a lower grid support (1.5) is arranged between the middle grid layer (1.2) and the lower grid layer (1.1); the cross section of the lower grid support (1.5) is in a wave shape; the upper grid layer (1.3) is arranged directly above the middle grid layer (1.2); an upper grid support (1.6) is arranged between the middle grid layer (1.2) and the upper grid layer (1.3); the longitudinal section of the upper grid support (1.6) is in a wave shape, and the upper grid support (1.6) and the lower grid support (1.5) are both formed by bending the grid; the lower grid layer (1.1), the middle grid layer (1.2), the upper grid layer (1.3), the upper grid support (1.6) and the lower grid support (1.5) are sewn together by a sewing technique; the connecting piece (2) is in an inverted U shape, is arranged at intervals along the joint of adjacent ecological grid units (1), and is press-fitted on the side edge of the ecological grid unit (1); the lower end of the vertical edge of the connecting piece (2) on both sides exceeds the bottom surface of the ecological grid unit (1); the prongs (3) are arranged on the part of the vertical edge of the connecting piece (2) that exceeds the bottom of the ecological grid unit (1); the environmental monitoring sensor (9) is installed in the ecological grid unit (1) and is connected to the remote control center through a wireless network, so that real-time data transmission and remote monitoring are realized.

2. The compact fixed anti-erosion ecological grid structure as claimed in claim 1, wherein: A group of ecological grid units (1) are laid on a slope, an anchoring trench (4) is dug at the top of the slope, the distance between the anchoring trench (4) and the edge of the top of the slope is 40-80 cm, and the upper end of the uppermost ecological grid unit (1) is buried in the anchoring trench (4).

3. The compact fixed anti-erosion and anti-washout ecological grid structure as claimed in claim 2, wherein: A sand and stone layer (6) with good water permeability is filled between the middle grid layer (1.2) and the lower grid layer (1.1) of a group of ecological grid units (1), and a planting soil layer (7) is laid on the middle grid layer (1.2) and the upper grid layer (1.3) of a group of ecological grid units (1) and the outer surface of the group of ecological grid units (1); the outer surface of the planting soil layer (7) exceeds the outer surface of the upper grid layer (1.3), and the thickness of the exceeding part is not less than 12 mm.

4. The compact fixed anti-erosion and anti-washout ecological grid structure as claimed in claim 1, wherein: The ecological grid unit (1) and the connecting piece (2) are connected by a binding piece (5).

5. The compact fixed anti-erosion and anti-washout ecological grid structure as claimed in claim 1, wherein: Two adjacent ecological grid units (1) are connected by hooks (8); the hooks (8) are arranged on one side of the joint of the ecological grid units (1) and are hooked on the other side of the joint of the ecological grid units (1).

6. The compact fixed anti-erosion and anti-washout ecological grid structure as claimed in claim 1, wherein: The prongs (3) are arranged at intervals in the lower part of the vertical edge of the connecting piece (2), the lower end of the prong (3) is connected to the vertical edge of the connecting piece (2), and a space is left between the upper end of the prong (3) and the vertical edge of the connecting piece (2).

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