CN213539016U - Ecological greening composite net pad for slope protection - Google Patents

Abstract

The utility model relates to a compound net pad of ecological greening for side slope protection, the tensile net in upper tensile net, the three-dimensional geotechnological net of tympanic bulla and the tensile net of lower floor that sets gradually including top-down, the bottom surface of the tensile net of lower floor still is equipped with geotechnological cloth, the tensile net of upper tensile net, the three-dimensional geotechnological net of tympanic bulla, the tensile net of lower floor and geotechnological cloth pass through the stylolite and connect as an organic wholely. The utility model forms a composite net pad with the advantages of three-dimensional net pad and geotextile by an upper layer stretching net, a bubbling three-dimensional geotextile net, a lower layer stretching net and polypropylene filament spun geotextile, can be used for slope protection and can adapt to severe environments such as acid and alkali; the evaporation of water can be reduced, and the infiltration amount is increased; the requirements of the rapid protection project can be met by a remote planting mode; a protection system with self growth ability can be constructed on the slope; the slope is reinforced through the growth of plants, and the anti-scouring, anti-sliding and ecological restoration of the slope are realized.

Description

Ecological greening composite net pad for slope protection

Technical Field

The utility model relates to a geosynthetic material technical field especially involves the geosynthetic material that is used for highway, railway, water conservancy, mine, municipal works side slope protection, specifically indicates a compound mat of ecological greening for side slope protection.

Background

In the engineering construction of highways, railways, water conservancy, mines, municipal works and the like, a large number of exposed side slopes can appear, and engineering measures are required to perform engineering protection and ecological greening restoration treatment on the exposed side slopes so as to achieve the purposes of preventing the side slopes from being damaged, keeping water and soil, conserving moisture, purifying air, reducing noise and beautifying the environment. The traditional slope protection measures mainly include: plastering mortar or soil-aggregate, guniting, concrete-spraying, grout-laid rubble retaining wall, anchor-spraying revetment, anchor-spraying net revetment and the like. Traditional bank protection mode cost is high, and the construction cycle is long, and the protecting effect is not enough. The modern protection mode is a slope greening mode. The common methods for slope greening include reinforced cement frame method, plant growing roll-paving method, soil-dressing plant growing belt method, fiber greening method, ecological porous concrete greening method, thick-layer base material spraying greening method and the like.

Wherein application number 201620186474.4 discloses a compound ecological protection blanket of multilayer, adopts the biaxial stretching net structure more than three-layer, plays certain effect in the aspect of reducing surface rainwater runoff speed, nevertheless still exists the shortcoming in the aspect of the combination of plant and bank protection technique.

Disclosure of Invention

The utility model discloses to prior art's not enough, provide a compound cylinder mat of ecological greening for side slope protection, have the advantage of three-dimensional cylinder mat and geotechnological cloth concurrently. The effects of reverse filtration, reinforcement, drainage, isolation and protection can be achieved; the soil-fixing agent has the characteristics of acid and alkali resistance, high tensile strength, good soil-fixing effect, strong erosion resistance, easy plant growth, easy processing and manufacturing, capability of being planted in different places, quick construction, great reduction of construction cost and the like.

The utility model discloses a following technical scheme realizes, provides a compound net pad of ecological greening for side slope protection, the tensile net in upper tensile net, the three-dimensional geotechnological net of tympanic bulla and the tensile net of lower floor that sets gradually including top-down, the bottom surface of the tensile net of lower floor still is equipped with geotechnological cloth, the tensile net in upper tensile net, the three-dimensional geotechnological net of tympanic bulla, the tensile net of lower floor and geotechnological cloth pass through the stylolite and connect as an organic wholely.

According to the scheme, the upper-layer stretching net, the bubbling three-dimensional geotechnical net and the lower-layer stretching net form a three-dimensional structure, the upper-layer stretching net and the lower-layer stretching net are used as foundation layers, so that the stress capacity of the net pad can be improved, deformation is prevented, grass seeds and nutrient soil in bubbles can be fixed through the bubbling structure of the bubbling three-dimensional geotechnical net, plant growth is facilitated, meanwhile, the flow velocity of slope rainwater can be blocked, so that rainwater erosion is resisted, and the loss of soil under the action of rainwater erosion is reduced; by arranging the geotextile, the moisture can be gradually and slowly released by utilizing the moisture storage capacity of the geotextile, the growth of plants is facilitated, and the drought resistance is improved; the composite net pad of the scheme can also prevent mixing of upper and lower sand stones, soil bodies and concrete, prevents water and soil loss, and can form a drainage layer to discharge redundant liquid and gas in a soil body structure.

Preferably, the geotextile is polypropylene filament spun-bonded geotextile. The geotextile of the optimization scheme adopts polypropylene filament spun-bonded geotextile, and the geotextile is used as a reinforced filter layer, so that a soil body structure can be reinforced, and concentrated stress can be effectively diffused, transferred or decomposed.

Preferably, the edge of the geotextile is provided with a self-bubbling three-dimensional geotextile, the outer side of the lower-layer stretching net extends upwards, the edge of the upper-layer stretching net is wrapped by a turned edge, and the turned edge is sewn with the geotextile body. This optimization scheme has improved the wholeness at gauze pad edge through setting up the turn-up, avoids following edge fracture.

As optimization, one end of the composite net cushion is also fixedly provided with a positioning cylinder in a penetrating way. This optimization scheme is through setting up a location section of thick bamboo, when the construction, can wear to establish the location section of thick bamboo of gauze pad one end in soil, then unreels and lays, and the gauze pad shifts when avoiding laying, has improved the efficiency of construction.

Preferably, the positioning cylinder comprises an upper cylinder body positioned above the composite net pad and a lower cylinder body positioned below the composite net pad, an upper flange is fixedly arranged on the outer wall of the upper cylinder body, an elastic column penetrating through the composite net pad downwards is fixedly arranged on the upper flange, and a wedge-shaped plug is arranged at the lower end of the elastic column; and the outer wall of the lower barrel is fixedly provided with a lower flange plate, and the lower flange plate is provided with a jack matched with the wedge-shaped plug. This body structure of separating from top to bottom is adopted to the location section of thick bamboo of optimization scheme, goes up barrel and lower barrel and realizes fixing through the cooperation of wedge plug and jack, and the inclined plane of wedge plug is relative with the lateral wall of jack, and when the inclined plane of wedge plug and jack lateral wall contacted, the elastic column takes place the slope deformation, and after the wedge plug passed the jack, the elastic column resumes, utilizes the wedge plug to realize that barrel and lower barrel throw off by oneself, has guaranteed the reliability of connecting.

The scheme also provides a manufacturing method of the ecological greening composite net pad for slope protection, which comprises the following steps:

1. arranging a first unwinding mechanism, a second unwinding mechanism, a third unwinding mechanism, a flat net bubbling device, an unwinding machine, a sewing machine, a tractor and a winding machine in sequence along the material conveying direction, mounting stretching net rolls on the first unwinding mechanism and the third unwinding mechanism, sequentially increasing the heights of the first unwinding mechanism, the second unwinding mechanism and the third unwinding mechanism along the material conveying direction, mounting a bubbling three-dimensional geonet blank roll on the second unwinding mechanism, and mounting a geofabric roll on the unwinding machine;

2. stretching the stretching net, the bubbling three-dimensional geonet blank and the movable end of the geofabric through a sewing machine and a tractor, then straightening the winding machine, and fixing the winding machine and the winding machine, wherein the movable end of the bubbling three-dimensional geonet blank passes through a working area of a flat net bubbling device and then enters the sewing machine, and before entering the sewing machine, the upper stretching net, the bubbling three-dimensional geonet, the lower stretching net and the geofabric are sequentially arranged from top to bottom;

3. the blank of the bubbling three-dimensional geonet forms the bubbling three-dimensional geonet with folds through a flat net bubbling device, the upper layer stretching net, the bubbling three-dimensional geonet, the lower layer stretching net and the geotextile are sewn into a whole through a sewing machine to form a composite net pad, and power is provided for material conveying through a tractor.

The first unwinding mechanism, the second unwinding mechanism and the third unwinding mechanism are optimized to be central unwinding mechanisms, the magnetic powder brake is used for controlling tension to realize constant-tension unwinding, the unwinding machine is friction type unwinding, and the unwinding speed and the winding speed are synchronous.

As optimization, an upper rotating roller for passing the upper layer stretching net is arranged above the working area of the flat net bubbling equipment, and a lower rotating roller for passing the lower layer stretching net is arranged below the working area of the flat net bubbling equipment. This optimization scheme makes the tensile net in upper strata and the tensile net in lower floor bypass the workspace of plain net bubbling equipment through setting up the upper roller and changeing the roller down, makes things convenient for the material to carry, avoids mutual interference.

As optimization, the working area of the flat-net bubbling equipment is provided with a preheating device and an extrusion device which are sequentially arranged along the material conveying direction, the extrusion device comprises an upper rotating roller and a lower rotating roller which are provided with roller teeth, and the roller teeth on the upper rotating roller and the lower rotating roller are mutually staggered.

The utility model has the advantages that: the composite net cushion with the advantages of the three-dimensional net cushion and the geotextile is formed by the upper-layer stretching net, the bubbling three-dimensional geotextile, the lower-layer stretching net and the polypropylene filament spun geotextile, can be used for slope protection and can adapt to severe environments such as acid and alkali; the evaporation of water can be reduced, and the infiltration amount is increased; the engineering construction cost can be greatly saved; the construction period can be effectively shortened; the requirements of the rapid protection project can be met by a remote planting mode; a protection system with self growth capability can be constructed on the slope, so that the tensile modulus is increased, and the service life of the project is prolonged; the slope is reinforced through the growth of plants, so that the erosion resistance, the sliding resistance and the ecological restoration of the slope are realized, and the effects of reducing water and soil loss and maintaining ecological diversity are achieved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a production facility of the ecological greening composite net pad of the utility model;

shown in the figure:

1. the device comprises an upper-layer stretching net, 2, a bubbling three-dimensional geonet, 3, a suture line, 4, a lower-layer stretching net, 5, a geotextile, 6, a first unwinding mechanism, 7, a second unwinding mechanism, 8, a third unwinding mechanism, 9, a flat net bubbling device, 10, an unwinding machine, 11, a sewing machine, 12, a tractor, 13 and a winding machine.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

The utility model discloses a compound mat for ecological greening belongs to one of the modern afforestation recovery mode, and through pasting geotechnological cloth with active plant and three-dimensional mat for netting, polypropylene filament and compound mutually, a protection system who has self growth ability has been built on domatic, consolidates the side slope through the growth of plant.

As shown in fig. 1, the ecological greening composite net pad for slope protection comprises an upper layer stretching net 1, a bubbling three-dimensional geonet 2 and a lower layer stretching net 4 which are sequentially arranged from top to bottom, wherein the bottom surface of the lower layer stretching net is also provided with a geotextile 5, and the upper layer stretching net, the bubbling three-dimensional geonet, the lower layer stretching net and the geotextile are connected into a whole through a suture 3. The edge of the geotextile is provided with a self-bubbling three-dimensional geotextile net, the outer side of the lower-layer stretching net extends upwards, the edge of the upper-layer stretching net is wrapped, and the edge is sewn with the geotextile body.

The geotextile is polypropylene filament spun-bonded geotextile, which is non-woven geotextile which takes polypropylene resin as raw material, is drawn into a net by melt spinning, and then is subjected to thermal bonding, chemical bonding or needle punching reinforcement to enable the net to become a function meeting the geosynthetic material. Has the following characteristics: 1. the strength is high, and the full strength and the elongation can be kept under the dry and wet states; has good friction coefficient and tensile strength and reinforcement performance. 2. The paint is acid-base resistant and corrosion resistant, and can resist corrosion for a long time in soil and water with different pH values; 3. the sand-retaining agent has good air permeability and water permeability, so that water flows through the agent, and sand loss is effectively retained; 4. the antimicrobial property is good, and the product is not damaged by microorganisms and worm damage; 5. the water-guiding structure has good water-guiding performance, and can form a drainage channel in the soil body and discharge redundant liquid and gas in the soil body structure; 6. the water-retaining agent has the capacity of retaining water, so that the water is gradually and slowly released; 7. has good puncture resistance, so has good protection performance; 8. the material is light and flexible, so the transportation, the laying and the construction are convenient.

The upper layer stretching net 1, the bubbling three-dimensional geotechnical net 2 and the lower layer stretching net 4 form a three-dimensional net cushion with a towel gourd net structure, the texture is loose and flexible, 90% of space is reserved for filling soil, gravel and fine stones, plant roots can penetrate through the space, the net cushion, the turf and the soil surface are firmly combined together through the grown turf. The utility model discloses a three-dimensional net pad has following characteristics: 1. due to the action of the net bubble, the impact energy of raindrops can be reduced, and the flow velocity of rainwater on the slope surface is blocked by the net bubble, so that the erosion of the rainwater is effectively resisted; 2. fillers (soil particles, nutrient soil, grass seeds and the like) in the net bubble can be well fixed, so that loss can be reduced under the erosion action of rainwater; 3. the reinforcing function is realized in the surface soil of the side slope, so that the surface soil layer ground slippage is effectively prevented; 4. the uniform growth of vegetation is facilitated, and the root system of the vegetation can easily grow and fix in the slope soil layer; 5. can be made into a grass blanket for transplanting in different places, and can meet the vegetation requirement of rapid protection engineering; 6. the water evaporation of the slope soil is reduced, and the infiltration amount is increased; 7. the material adopts black polyethylene, has the functions of heat absorption and heat preservation, can promote the germination of seeds and is beneficial to the growth of plants; 8. a functional system with self-organization, self-support and self-repair capabilities is formed on the slope surface, so that the anti-scouring, anti-sliding and ecological restoration of the slope are realized, and the purposes of reducing water and soil loss and maintaining ecological diversity are achieved; 9. the stress dissipation effect is obvious, so that the deformation of the slope body at the weak interlayer is obviously reduced, and the slope disaster such as the slide or the collapse of part of the slope body is reduced.

The composite net pad of the utility model has the advantages of three-dimensional net pad and geotextile, is suitable for the common requirements of greening and slope protection, and can play the roles of reverse filtration, reinforcement, drainage, isolation and protection; the soil-fixing agent has the characteristics of acid and alkali resistance, high tensile strength, good soil-fixing effect, strong erosion resistance, easy plant growth, easy processing and manufacturing, capability of being planted in different places, quick construction, great reduction of construction cost and the like.

One end of the composite net pad is fixedly provided with a positioning cylinder in a penetrating way, the positioning cylinder comprises an upper cylinder body positioned above the composite net pad and a lower cylinder body positioned below the composite net pad, an upper flange is fixedly arranged on the outer wall of the upper cylinder body, an elastic column penetrating through the composite net pad downwards is fixedly arranged on the upper flange, and the lower end of the elastic column is provided with a wedge-shaped plug; and the outer wall of the lower barrel is fixedly provided with a lower flange plate, and the lower flange plate is provided with a jack matched with the wedge-shaped plug.

The utility model relates to a manufacturing approach of compound net pad of ecological greening for side slope protection does, and semi-manufactured goods tympanic bulla (rugate) three-dimensional geotechnological net preheats tympanic bulla (rugate) net through the mode of electrical heating or steam heating in tympanic bulla (rugate) equipment. The preheated bubbling (wrinkling) net is rotationally extruded into an uneven bubbling (wrinkling) three-dimensional net through mutually meshed thermoforming roller teeth, and the uneven bubbling (wrinkling) three-dimensional net is heated first and then is extruded, cooled and shaped to form the uniform bubbling (wrinkling) three-dimensional net. The three-dimensional geonet after bubbling (wrinkling), the stretching net and the geofabric are sewn into a whole by a sewing machine under the traction of a traction machine, and the finished product has a certain thickness. And finally, winding and packaging on a winding machine.

The method specifically comprises the following steps:

s1, arranging a first unwinding mechanism 6, a second unwinding mechanism 7, a third unwinding mechanism 8, a flat net bubbling device 9, an unwinding machine 10, a sewing machine 11, a traction machine 12 and a winding machine 13 in sequence along the material conveying direction, installing stretching net rolls on the first unwinding mechanism and the third unwinding mechanism, sequentially increasing the heights of the first unwinding mechanism, the second unwinding mechanism and the third unwinding mechanism along the material conveying direction, installing bubbling three-dimensional geonet blank rolls on the second unwinding mechanism, and installing geofabric rolls on the unwinding machine; the first unwinding mechanism, the second unwinding mechanism and the third unwinding mechanism are central unwinding mechanisms, tension is controlled through a magnetic powder brake to realize constant-tension unwinding, the unwinding machine is friction-type unwinding, and the unwinding speed and the winding speed are synchronous;

s2, straightening the movable ends of the stretching net, the bubbling three-dimensional geonet blank and the geofabric through a sewing machine and a tractor, and fixing the movable ends of the stretching net, the bubbling three-dimensional geonet blank and the geofabric with the winding machine, wherein the movable ends of the bubbling three-dimensional geonet blank penetrate through a working area of a flat net bubbling device and then enter the sewing machine, and the upper stretching net, the bubbling three-dimensional geonetwork, the lower stretching net and the geofabric are sequentially arranged from top to bottom before entering the sewing machine;

an upper rotating roller for the upper layer stretching net to pass through is arranged above the working area of the flat net bubbling equipment, and a lower rotating roller for the lower layer stretching net to pass through is arranged below the working area of the flat net bubbling equipment; the workspace of plain net tympanic bulla equipment is equipped with preheating device and the extrusion device that sets gradually along material direction of delivery, the extrusion device is including setting up the roller of changeing on the roller tooth and the lower roller, and the roller tooth on the roller of changeing on and the lower roller is crisscross each other, and is different according to tympanic bulla (puckering) net specification, process velocity, can set up different temperatures, and through the mode of electrical heating or steam heating, preheat tympanic bulla (puckering) net, tympanic bulla (puckering) net after preheating is rotatory the extrusion into unevenness's tympanic bulla (puckering) three-dimensional geotechnique net through the thermoforming roller tooth of interlock each other.

S3, forming a bubbling three-dimensional geonet with folds by a bubbling three-dimensional geonet blank through a plain net bubbling device, sewing an upper layer stretching net, the bubbling three-dimensional geonet, a lower layer stretching net and geofabric into a whole through a sewing machine to form a composite net cushion, and providing power for material conveying through a tractor; one or more seams and threads are interwoven or sewn by the loop sewing method for the sewing machine, one or more layers of net cushions are made of cotton fiber, polyester fiber, nylon or vinylon, and during actual production, the sewing threads with different specifications and materials are selected, different needle densities and sewing row numbers are set according to different product requirements, so that the composite strength is ensured; the winding machine adopts a central shaft type winding, and the winding is stable and tidy by a tension sensor and the control of the rotating speed.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims (5)

1. The utility model provides a compound gauze pad of ecological greening for side slope protection, includes tensile net (1) of upper strata, the three-dimensional geotechnological net of tympanic bulla (2) and the tensile net of lower floor (4) that top-down set gradually, its characterized in that: the bottom surface of the lower-layer stretching net is further provided with geotextile (5), and the upper-layer stretching net, the bubbling three-dimensional geotextile, the lower-layer stretching net and the geotextile are connected into a whole through a suture (3).

2. The ecological greening composite net pad for slope protection according to claim 1, characterized in that: the geotextile is polypropylene filament spun-bonded geotextile.

3. The ecological greening composite net pad for slope protection according to claim 1, characterized in that: the edge of the geotextile is provided with a self-bubbling three-dimensional geotextile net, the outer side of the lower-layer stretching net extends upwards, the edge of the upper-layer stretching net is wrapped, and the edge is sewn with the geotextile body.

4. The ecological greening composite net pad for slope protection according to claim 1, characterized in that: one end of the composite net pad is also fixedly provided with a positioning cylinder in a penetrating way.

5. The ecological greening composite net pad for slope protection according to claim 4, characterized in that: the positioning cylinder comprises an upper cylinder body positioned above the composite net pad and a lower cylinder body positioned below the composite net pad, an upper flange is fixedly arranged on the outer wall of the upper cylinder body, an elastic column penetrating through the composite net pad downwards is fixedly arranged on the upper flange, and a wedge-shaped plug is arranged at the lower end of the elastic column; and the outer wall of the lower barrel is fixedly provided with a lower flange plate, and the lower flange plate is provided with a jack matched with the wedge-shaped plug.

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