Side slope prefabricated triangular steel pipe mesh protection structure with inverted filtering function

Abstract

The utility model discloses a side slope prefabricated triangular steel pipe mesh protection structure with an inverted filtering function. The side slope prefabricated triangular steel pipe mesh protection structure comprises a connecting piece, a steel pipe mesh body and a planting bag. The connecting piece is fixedly arranged on an anchor rod on the surface of the side slope; the plurality of steel pipe mesh bodies are fixedly arranged above the side slope through the connecting pieces; the planting bag is fixedly arranged in the middle of the steel pipe mesh body; in the installation process of the protection structure, the steel pipe mesh body is constructed in advance, the middle of the steel pipe mesh body is filled with the replaceable planting bag, and then the steel pipe mesh body and the planting bag are fixedly arranged on the anchor rod on the surface of the slope through the connecting piece, so that slope soil is effectively stabilized, and the water and soil loss and landslide phenomena are prevented; the vegetation growth is promoted, the ecological restoration capacity of the side slope is enhanced, meanwhile, the construction difficulty is remarkably reduced through the replaceable modular design, different side slope conditions and environment changes are flexibly coped, meanwhile, interference to the environment is reduced, later operation and maintenance are facilitated, and the operation and maintenance difficulty and cost are reduced.

Description

Technical Field

[0001] The embodiments of the utility model belong to the technical field of ecological greening, and more specifically, relate to a slope prefabricated triangular steel pipe mesh protection structure with an anti-filtration function. Background Art

[0002] In the current construction of expressways and first-class highways, the greening of steep slopes faces many challenges. These slopes are difficult to implement due to their large slopes, usually exceeding 1:0.75, and the effect is difficult to guarantee. In order to ensure the stability of the slopes, structures such as anchor rods, geocells, geogrids, and reinforced concrete skeletons are often used to form a support system in engineering construction. Although these structures can provide the necessary stability, they often require a lot of manpower and material investment during the construction process, and the construction period is long and the cost is high. In addition, in order to achieve the greening of the slopes, engineers will also dig pits or drill holes for grouting on the slope to form a skeleton structure, and cooperate with spraying and planting grass technology. Sometimes, plants that can adapt to steep environments are planted by setting up construction platforms or multi-level platforms. However, these methods often face problems such as low greening rate and uneven vegetation distribution in later operation and maintenance, which seriously affect the ecological restoration effect of the slopes. There are two main reasons for these problems: one is the limitation of construction conditions, such as complex topography and steep slopes, which make it difficult for the soil to adhere evenly to the slope surface and maintain a certain thickness; the other is that the steep slope has poor water retention, which is not conducive to the growth of grass seeds. In addition, the slope surface is smooth and easily eroded by rain, resulting in soil loss.

[0003] In the prior art, a Chinese patent with document number CN108755593A discloses a prefabricated vegetated concrete component and construction method for slope protection, which includes a permeable cover, a permeable hole, a permeable cover protrusion, a permeable cover groove, a prefabricated reinforced concrete frame component, a bottom slope foot, a component groove, a component protrusion and a prefabricated vegetated concrete component. The permeable cover has a circular permeable hole, and a vegetated concrete groove is provided inside the prefabricated reinforced concrete frame component, and the bottom slope foot is used to fix it in the soil. The component groove and the component protrusion are designed for splicing between adjacent components. The prefabricated vegetated concrete component contains cementitious materials, large-pore sandless concrete and plant nutrient solution, and the vegetation has been maintained therein.

[0004] The Chinese patented vegetated concrete prefabricated components with document number CN108755593A have a simple structure, are easy to construct, have clear connections between the load-bearing structure and the protective permeable structure, have strong anti-scouring ability, are conducive to the growth of slope plants, and can effectively reinforce the slope and green the slope ecological environment. However, it still cannot solve some problems existing in the existing protective slopes: first, it is necessary to build a multi-level platform, which is relatively difficult to construct, resulting in relatively high costs and low economic benefits for large-scale applications; second, the long-term maintenance and management of prefabricated components is difficult, and the later operation and maintenance costs are high. Utility Model Content

[0005] In response to the above defects or improvement needs of the prior art, the utility model provides a prefabricated triangular steel pipe mesh protection structure for slopes with an anti-filtration function, which can effectively stabilize the slope soil, prevent soil erosion and landslides, and through the design of the planting bags, promote the growth of vegetation and enhance the ecological restoration capacity of the slope. At the same time, the replaceable steel pipe mesh body and the planting bags ensure that these modules can be easily removed and updated when they need to be repaired or replaced due to long-term use, thereby ensuring the long-term effectiveness and sustainability of the slope protection structure. Secondly, this modular design significantly reduces the difficulty of construction, achieves flexible response to different slope conditions and environmental changes, and reduces interference with the environment, which is beneficial to later operation and maintenance, and reduces the difficulty and cost of operation and maintenance.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a slope prefabricated triangular steel pipe mesh protection structure with anti-filtration function, including: a connecting piece, a steel pipe mesh body and a planting bag, wherein:

[0007] The connecting member is fixedly arranged on the anchor rod on the slope surface, and comprises a base plate, a through hole and a fixing screw; the through hole is fixedly arranged in the middle of the base plate; the fixing screw is fixedly arranged at the upper end of the base plate and a plurality of the fixing screws are evenly distributed around the circumference of the through hole;

[0008] The steel pipe mesh body is fixedly arranged on the anchor rod through the connecting piece, and includes a vertical steel pipe, a horizontal steel pipe, and an oblique steel pipe; the vertical steel pipe is fixedly arranged on the outside of the steel pipe mesh body; the horizontal steel pipe is fixedly arranged on the bottom end of the steel pipe mesh body; the oblique steel pipe is fixedly arranged on the upper end of the outer side of the steel pipe mesh body by fixedly connecting the upper end of the vertical steel pipe, and is fixedly arranged on the bottom end of the outer side of the steel pipe mesh body by fixedly connecting the bottom end of the vertical steel pipe and both ends of the horizontal steel pipe;

[0009] The planting bag is fixedly arranged in the middle of the steel pipe mesh body, and comprises a sand bag and a planting layer; the sand bag is fixedly arranged inside the steel pipe mesh body and wraps the planting layer.

[0010] Furthermore, the through hole is adapted to fit the anchor rod.

[0011] Furthermore, the steel pipe mesh body includes an assembly recess, which is fixed at the bottom end of the top corner of the steel pipe mesh body and is adapted to the base plate.

[0012] Furthermore, the vertical steel pipe, the transverse steel pipe and the oblique steel pipe are all hollow steel pipes.

[0013] Furthermore, the vertical steel pipe located at the top corner of the steel pipe mesh body is adapted to the fixing screw.

[0014] Furthermore, the sandbag comprises a bag body and coarse sand filled in the bag body, wherein the bag body comprises linen, recycled cloth, polypropylene or other suitable woven materials with good water permeability and water resistance and strong toughness; the content of particles with a particle size greater than 0.5 mm in the coarse sand is greater than 50%, the mud content is less than 3%, and the permeability coefficient is greater than 5×10 -2 mm / s.

[0015] Furthermore, the planting layer thickness is ≥10 cm.

[0016] Furthermore, the planting layer includes: clay, organic matter, wood fiber, grass seeds after soaking treatment, organic fertilizer, compound fertilizer, water retaining agent, granulating agent, adhesive and stabilizer.

[0017] Furthermore, the planting bag includes a geotextile layer, and the geotextile layer is fixed on the upper end of the sand bag.

[0018] Furthermore, the planting bag includes a planting base layer, which is fixed to the upper end of the geotextile layer and the bottom end of the planting layer, and has a thickness of ≥10 cm.

[0019] In general, the above technical solutions conceived by the utility model can achieve the following beneficial effects compared with the prior art:

[0020] (1) The protective structure of the utility model fixes the steel pipe mesh body and the planting bags on the anchor rods on the surface of the slope through the connecting parts, so as to effectively stabilize the slope soil and prevent soil erosion and landslide. The design of the planting bags promotes the growth of vegetation and enhances the ecological restoration capacity of the slope. At the same time, the replaceable steel pipe mesh body and planting bags ensure that these modules can be easily removed and updated when they need to be repaired or replaced due to long-term use, thereby ensuring the long-term effectiveness and sustainability of the slope protection structure.

[0021] (2) The protective structure of the utility model constructs a prefabricated steel pipe mesh body through hollow steel pipes, which not only ensures the strength of the component, but also takes into account the lightweight characteristics and ensures the compatibility with the connecting parts, making it easy to install and saving materials and costs.

[0022] (3) The protective structure of the utility model effectively reduces the difficulty of firmly fixing the slope protection structure components on the slope surface through the connecting pieces, saving labor costs and improving construction efficiency

[0023] (4) The protective structure of the utility model significantly reduces the difficulty of construction through modular design, and can flexibly respond to different slope conditions and environmental changes. At the same time, it reduces interference with the environment, is conducive to later operation and maintenance, and reduces the difficulty and cost of operation and maintenance.

[0024] (5) The protective structure of the utility model uses sand bags as anti-filter bodies and cooperates with geotextile layers to maintain the stability of the upper soil and plant roots while allowing free circulation of water and air, effectively reducing soil erosion and promoting the healthy growth of plants.

[0025] (6) The protective structure of the utility model uses a prefabricated triangular steel pipe mesh protective structure with grass seeds of a certain degree of maturity for slope construction. The mature grass seeds can adapt to the slope environment more quickly, enhance the resistance of plants to adverse climate and soil conditions, quickly cover the slope surface, reduce soil erosion and wind erosion, improve the stability of the slope, and reduce the subsequent operation and maintenance costs. At the same time, the vegetation coverage can also improve the microclimate of the slope, provide habitats for other plants and wild animals, and promote the recovery of biodiversity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of the combination of the steel pipe mesh body and the planting bag in the embodiment of the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the connecting piece of an embodiment of the utility model;

[0028] Figure 3 It is a schematic diagram of the structure of several protective structures arranged on the slope in an embodiment of the utility model.

[0029] In all the drawings, the same figure marks represent the same technical features, specifically: 1-connector, 11-base plate, 12-through hole, 13-fixing screw, 2-steel pipe mesh body, 21-vertical steel pipe, 22-horizontal steel pipe, 23-oblique steel pipe, 24-assembly recess, 3-planting bag, 31-sand bag, 32-geotextile layer, 33-planting base, 34-planting layer, 4-slope. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] like Figures 1 to 3 As shown, an embodiment of the utility model provides a prefabricated triangular steel pipe mesh protection structure for a slope with an anti-filtration function, comprising: a connecting piece 1, a steel pipe mesh body 2 and a planting bag 3; the connecting piece 1 is fixedly arranged on the anchor rod on the surface of the slope; a plurality of the steel pipe mesh bodies 2 are fixedly arranged above the slope through the connecting piece 1; the planting bag 3 is fixedly arranged in the middle of the steel pipe mesh body 2; during the installation of the protection structure, the steel pipe mesh body 2 is prefabricated and the replaceable planting bag 3 is filled in the middle of the steel pipe mesh body 2, and then the connecting piece 1 is used to fix the steel pipe mesh body 2 and the planting bag 3 on the slope The anchor rods on the slope surface can effectively stabilize the slope soil, prevent soil erosion and landslides, and the design of the planting bag 3 can promote the growth of vegetation and enhance the ecological restoration capacity of the slope. At the same time, the replaceable steel pipe mesh body 2 and the planting bag 3 can ensure that these modules can be easily removed and updated when they need to be repaired or replaced due to long-term use, thereby ensuring the long-term effectiveness and sustainability of the slope protection structure. Secondly, this modular design significantly reduces the difficulty of construction, realizes flexible response to different slope conditions and environmental changes, and reduces interference with the environment, which is beneficial to later operation and maintenance, and reduces the difficulty and cost of operation and maintenance.

[0032] Specifically, Figures 1 to 3 As shown, the connecting member 1 is a steel member used to fix the steel pipe mesh body 2 on the slope, which includes: a base plate 11, a through hole 12 and a fixing screw 13;

[0033] The substrate 11 is a circular plate as a whole;

[0034] The through hole 12 is fixedly arranged in the middle of the base plate 11 and is adapted to the anchor rod, and is used to fix the base plate 12 on the anchor rod on the slope surface;

[0035] The fixing screw 13 is fixedly arranged on the upper end of the base plate 11 and a plurality of the fixing screws 13 are evenly distributed around the circumference of the through hole 12, and are used to connect and fix the steel pipe mesh body 2;

[0036] In summary, the connector 1 effectively reduces the difficulty of firmly fixing the slope protection structure components on the slope surface, saves labor costs, and improves construction efficiency.

[0037] Specifically, Figures 1 to 3 As shown, the steel pipe mesh body 2 is a block-shaped triangular hollow mesh and is fixed on the anchor rod on the slope surface through the connecting piece 1, which is used to stably carry the planting bag 3, and includes a vertical steel pipe 21, a horizontal steel pipe 22, an oblique steel pipe 23 and an assembly notch 24;

[0038] The vertical steel pipe 21 is fixedly arranged outside the steel pipe mesh body 2, and the vertical steel pipe 21 located at the top corner is adapted to the fixing screw 13, so as to realize the convenient fixing of the steel pipe mesh body 2;

[0039] The transverse steel pipe 22 is fixedly arranged at the bottom end of the steel pipe mesh body 2 and is used to carry the planting bag 3;

[0040] The oblique steel pipe 23 is fixedly arranged at the upper end and the bottom end of the outer side of the steel pipe mesh body 2, wherein the oblique steel pipe 23 fixedly arranged at the upper end of the outer side of the steel pipe mesh body 2 is used to be fixedly connected to the upper end of the vertical steel pipe 21, and the oblique steel pipe 23 fixedly arranged at the bottom end of the outer side of the steel pipe mesh body 2 is used to be fixedly connected to the bottom end of the vertical steel pipe 21 and the two ends of the transverse steel pipe 22;

[0041] The assembly notch 24 is a fan-shaped notch as a whole, which is fixed at the bottom end of the top corner of the steel pipe mesh body 2 and is adapted to the base plate 11 to achieve seamless assembly of the connector 1 and the steel pipe mesh body 2;

[0042] Preferably, the vertical steel pipe 21, the horizontal steel pipe 22 and the oblique steel pipe 23 are all hollow steel pipes;

[0043] In summary, the steel pipe mesh body 2 not only ensures the strength of the component, but also takes into account the lightweight characteristics and ensures compatibility with the connecting piece 1, thereby facilitating installation and saving materials and costs.

[0044] Specifically, Figure 1 and Figure 3 As shown, the planting bag 3 is fixedly arranged in the middle of the steel pipe mesh body 2, and is used to promote plant growth to enhance the ecological function of the slope, and includes: a sand bag 31, a geotextile layer 32, a planting base layer 33 and a planting layer 34;

[0045] The sand bag 31 is fixed inside the steel pipe mesh body 2 and wraps the other parts of the planting bag 3. It is used as an anti-filter to maintain the stability of the upper soil and plant roots while allowing the free circulation of water and air, effectively reducing soil erosion and promoting the healthy growth of plants. The sand bag 31 includes a bag body and coarse sand filled in the bag body, wherein the bag body includes linen, recycled cloth, polypropylene or other suitable woven materials with good water permeability and water resistance and strong toughness; the content of particles with a particle size greater than 0.5 mm in the coarse sand is greater than 50%, the mud content is less than 3%, and the permeability coefficient is greater than 5×10 -2 mm / s.

[0046] The geotextile layer 32 is fixed on the upper end of the sand bag 31 to prevent soil particles from being lost with the water flow, while allowing water and air to pass through, thereby maintaining soil moisture and air permeability. In addition, the geotextile can also enhance the structural stability of the planting bag, prevent the soil in the bag from being eroded by water flow or wind, and help to fix and grow plant roots.

[0047] The planting base layer 33 is fixedly arranged on the upper end of the geotextile layer 32 and has a thickness of ≥10 cm, and is used to fix plants and reduce erosion. It is mainly obtained by uniformly stirring organic matter, wood fiber, fertilizer, stabilizer and granulating agent for 10 minutes;

[0048] The planting layer 34 is fixedly arranged on the upper end of the planting base layer 33 and has a thickness of ≥10 cm, and is used to plant grass seeds of short-rooted herbaceous plants. It is mainly obtained by uniformly stirring clay, organic matter, wood fiber, soaked grass seeds, organic fertilizer, compound fertilizer, water retaining agent, granulating agent, adhesive and stabilizer for 10 minutes; after laying and curing for a period of time, the planting layer 34 is installed on the surface of the slope 4 along with the steel pipe mesh body 2;

[0049] To sum up the above, prefabricated triangular steel tube mesh protection structures with grass seeds of a certain maturity will be used in slope construction. The mature grass seeds can adapt to the slope environment more quickly, enhance the resistance of plants to adverse climate and soil conditions, quickly cover the slope surface, reduce soil erosion and wind erosion, improve the stability of the slope, and reduce the subsequent operation and maintenance costs. At the same time, the vegetation coverage can also improve the microclimate of the slope, provide habitats for other plants and wild animals, and promote the recovery of biodiversity.

[0050] The working principle of the new experimental model is as follows: according to the design requirements, the slope is cleaned and anchor rods are arranged on the slope surface, and at the same time, a steel pipe mesh body 2 and a connecting piece 1 of suitable size adapted to the anchor rod are constructed; the sand bag 31, the geotextile layer 32, the planting base 33 and the planting layer 34 are laid in the middle of the steel pipe mesh body 2 in sequence and maintained for a period of time to allow the grass seeds to develop to a certain maturity, and at the same time, the planting base 33 and the planting layer 34 with poorly developed grass seeds are replaced during the maintenance period, thus completing the construction of the prefabricated triangular steel pipe mesh protection structure; after the connecting piece 1 is sleeved on the anchor rod through the through hole 12 and fixed, the protection structure is connected and fixed to the connecting rod by fixing the screw 13 and the vertical steel pipe 21 at the top angle, thus completing the installation of the protection structure on the slope, achieving effective stabilization of the slope soil, preventing soil erosion and landslides, and at the same time, the replaceable steel pipe mesh body and planting bag ensure that these modules can be easily removed and updated when they need to be repaired or replaced due to long-term use, thereby ensuring the long-term effectiveness and sustainability of the slope protection structure.

[0051] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0052] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0053] In this patent, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "includes..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it; those skilled in the art will easily understand that the above are only preferred embodiments of the utility model and are not used to limit the utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A slope prefabricated triangular steel pipe mesh protection structure with anti-filtration function, characterized in that: include: A connecting piece (1), a steel pipe mesh body (2) and a planting bag (3), wherein: The connecting member (1) is fixedly arranged on an anchor rod on the surface of the slope (4), and comprises a base plate (11), a through hole (12) and a fixing screw (13); the through hole (12) is fixedly arranged in the middle of the base plate (11); the fixing screw (13) is fixedly arranged at the upper end of the base plate (11) and a plurality of the fixing screws (13) are evenly distributed around the circumference of the through hole (12); The steel pipe mesh body (2) is fixedly arranged on the anchor rod through the connecting piece (1), and comprises a vertical steel pipe (21), a transverse steel pipe (22), and an oblique steel pipe (23); the vertical steel pipe (21) is fixedly arranged on the outside of the steel pipe mesh body (2); the transverse steel pipe (22) is fixedly arranged on the bottom end of the steel pipe mesh body (2); the oblique steel pipe (23) is fixedly arranged on the upper end of the outside of the steel pipe mesh body (2) by being fixedly connected to the upper end of the vertical steel pipe (21), and is fixedly arranged on the bottom end of the outside of the steel pipe mesh body (2) by being fixedly connected to the bottom end of the vertical steel pipe (21) and the two ends of the transverse steel pipe (22); The planting bag (3) is fixedly arranged in the middle of the steel pipe mesh body (2), and comprises a sand bag (31) and a planting layer (34); the sand bag (31) is fixedly arranged inside the steel pipe mesh body (2) and wraps the planting layer (34).

2. The protective structure according to claim 1, characterized in that: The through hole (12) is adapted to fit the anchor rod.

3. The protective structure according to claim 1, characterized in that: The steel tube mesh body (2) comprises an assembly recess (24), which is fixedly arranged at the bottom end of the top corner of the steel tube mesh body (2) and is adapted to the base plate (11).

4. The protective structure according to claim 1, characterized in that: The vertical steel pipe (21), the transverse steel pipe (22) and the oblique steel pipe (23) are all hollow steel pipes.

5. The protective structure according to claim 1, characterized in that: The vertical steel pipe (21) located at the top corner of the steel pipe mesh body (2) is adapted to the fixing screw (13).

6. The protective structure according to any one of claims 1 to 5, characterized in that: The sand bag (31) comprises a bag body and coarse sand filled in the bag body, wherein the bag body comprises a woven material of linen, recycled cloth or polypropylene with good water permeability and water resistance and strong toughness; the content of particles with a particle size greater than 0.5 mm in the coarse sand is greater than 50%, the mud content is less than 3%, and the permeability coefficient is greater than 5×10 -2 mm / s.

7. The protective structure according to any one of claims 1 to 5, characterized in that: The planting layer (34) has a thickness of ≥10 cm.

8. The protective structure according to any one of claims 1 to 5, characterized in that: The planting bag (3) comprises a geotextile layer (32), and the geotextile layer (32) is fixedly arranged on the upper end of the sand bag (31).

9. The protective structure according to claim 8, characterized in that: The planting bag (3) comprises a planting base layer (33), which is fixedly arranged on the upper end of the geotextile layer (32) and the bottom end of the planting layer (34) and has a thickness of ≥10 cm.

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