Bionic wind erosion prevention sand barrier

Abstract

The invention relates to the technical field of wind prevention and sand fixation, in particular to a bionic wind erosion prevention sand barrier, the core of the bionic wind erosion prevention sand barrier comprises a supporting assembly and a first sand prevention assembly, the supporting assembly is connected with first side roots and second side roots through a main body, the first side roots surround in an array and are obliquely arranged, and the second side roots are vertically fixed between the first side roots to form a three-dimensional anchoring structure; the first sand prevention assembly simulates the vegetation form through sand prevention layers arranged in a layered mode. All the components are made of degradable materials. The three-dimensional supporting structure disperses sand impact force and achieves deep anchoring, and the anti-overturning capacity is remarkably improved; the bionic form reduces the speed through turbulent flow of branches and leaves and stabilizes sand through a branch array, and has self-adaptive windproof and landscaping effects; the degradable material avoids the pollution problem of a traditional sand barrier, and the degradable material is naturally degraded into harmless substances after the sand stabilization period is completed. The sand barrier integrates structure bionics, three-dimensional anchoring and material innovation, stability, ecological adaptability and environmental friendliness are effectively improved, and a sustainable solution is provided for desertification control.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind and sand prevention, and in particular, relates to a bionic wind and sand prevention barrier. BACKGROUND

[0002] In the field of desertification prevention, traditional wind and sand prevention barriers face multiple bottlenecks. Although flexible sand barriers represented by grass checkerboards have certain initial sand fixation effects, natural grass materials are significantly affected by climate conditions, have poor weather resistance, weak sand burial resistance and other defects, and thus have a generally short service life. Although grid sand barriers made of plastic as a representative of high polymer composite materials have certain sand fixation effects in the short term, they have defects such as poor material weather resistance and easy aging and damage, and are difficult to naturally degrade after being discarded, which easily forms long-term white pollution, which is contrary to the concept of ecological environmental protection.

[0003] Another type of sand barrier constructed by using rigid materials such as metal or concrete has fixed structure and insufficient flexibility, and is difficult to adapt to complex and variable sand land topography, and is easily structurally damaged under long-term wind and sand erosion, and a large amount of manpower and material resources are consumed in the construction process, resulting in high construction and maintenance costs. More importantly, the above-mentioned various types of traditional sand barriers lack synergistic effects with the natural ecological system, and are difficult to create favorable conditions for sand land vegetation restoration during sand fixation, and have limited ecological benefits.

[0004] Therefore, in view of the problems of poor material environmental compatibility, insufficient structural adaptability, and lack of ecological synergistic effect in the prior art, it is urgent to propose a sand barrier device that has degradable characteristics, bionic self-adaptive ability and high-efficiency sand fixation performance, simulates the shape and mechanical properties of natural plants, constructs a bionic structure system with rigidity and flexibility, so as to significantly improve the stability, environmental friendliness and ecological adaptability of the sand barrier, and provide a new technical solution for desertification prevention.

[0005] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and thus can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0006] The present application aims to overcome the deficiencies of the prior art, and provides a bionic wind and sand prevention barrier that has degradable characteristics, bionic self-adaptive ability and high-efficiency sand fixation performance, so as to improve the stability, environmental friendliness and ecological adaptability of the sand barrier, and achieve desertification prevention.

[0007] The application provides a kind of bionic windbreak sand barrier, it mainly includes: support component and first sand prevention component, support component includes main body, multiple first side roots and multiple second side roots, each first side root is connected in the radial side of main body and is arranged at angle with horizontal plane, each second side root is arranged between adjacent first side roots, and it is fixed relative to first side root, and second side root is arranged perpendicular to horizontal plane;First sand prevention component includes multiple groups of sand prevention layer arranged in vertical direction in sequence, and the sand prevention layer includes multiple sand prevention branches and multiple sand prevention leaves, each sand prevention branch is connected in the radial side of main body, and multiple sand prevention leaves are connected in the radial side of sand prevention branch;Wherein, main body, first side root, second side root, sand prevention branch and sand prevention leaf are made of degradable material.

[0008] According to some embodiments of the application, in the vertical upward direction, the axial direction of the sand prevention branches of the sand prevention layer gradually decreases with the axis of the main body.

[0009] According to some embodiments of the application, the difference between the axial direction of the sand prevention branches of adjacent sand prevention layers and the axis of the main body is x, and 0 degrees ≤ x ≤ 25 degrees.

[0010] According to some embodiments of the application, the projections of the sand prevention branches of adjacent sand prevention layers on the horizontal plane do not overlap, and the angle between any adjacent projections of the sand prevention branches in the projection is equal.

[0011] According to some embodiments of the application, the projections of the sand prevention branches of the upper and lower sand prevention layers of any sand prevention layer on the horizontal plane overlap, and the corresponding two sand prevention branches are connected and fixed by a fixed support rod.

[0012] According to some embodiments of the application, the support component further includes a fixing ring, the fixing ring is arranged around the main body and is fixedly connected with each first side root, and each second side root is fixedly connected with the fixing ring.

[0013] According to some embodiments of the application, the second side root is a U-shaped rod body, including two fixed ends, after the two fixed ends pass through two through holes of the fixing ring arranged in the vertical direction, a sand prevention barrier is formed between the ground and the fixing ring.

[0014] According to some embodiments of the application, the second side root includes a compression ring, the compression ring is sleeved on the fixed end to make the fixed end in a contracted state, after the fixed end is inserted between the ground and the fixing ring, the compression ring is removed, and the fixed end is stretched to form the sand prevention barrier.

[0015] According to some embodiments of the present application, the sand-preventing branches and leaves are arranged in multiple layers along the axial direction of the sand-preventing stem, and each layer of the sand-preventing branches and leaves is arranged in a ring and array.

[0016] According to some embodiments of the present application, the support assembly further comprises a sleeve, the sleeve comprises a first sleeve and a second sleeve in vertical communication, the first sleeve is a through pipe, the first sleeve is sleeved on the sand-preventing stem, the second sleeve is inserted into the first side root, and the sand-preventing stem is embedded on the main body.

[0017] The present application provides a bionic wind-erosion-preventing sand barrier, which can be used for environmental management of desertification, such as Gobi and desert, and can realize the effect of wind prevention and sand fixation. The bionic wind-erosion-preventing sand barrier mainly comprises a support assembly and a first sand-preventing assembly. The support assembly comprises a main body, a plurality of first side roots and a plurality of second side roots. Each first side root is connected to the radial side of the main body in a ring and array, and is arranged at an angle with the horizontal plane. Each second side root is arranged between adjacent first side roots in a spaced manner, and is fixed relative to the first side root. The second side root is arranged perpendicular to the horizontal plane. The first sand-preventing assembly comprises a plurality of sand-preventing layers arranged in sequence in the vertical direction. Each sand-preventing layer comprises a plurality of sand-preventing stems and a plurality of sand-preventing branches and leaves. Each sand-preventing stem is connected to the radial side of the main body in a ring and array. A plurality of sand-preventing branches and leaves are connected to the radial side of the sand-preventing stem. The main body, the first side root, the second side root, the sand-preventing stem and the sand-preventing branch and leaf are all made of degradable materials.

[0018] In the above arrangement, the support assembly forms a stable three-dimensional anchoring system through the multi-dimensional support structure of the main body, the first side root and the second side root. The horizontally inclined first side root can effectively disperse the impact force of wind and sand. The vertically arranged second side root penetrates the ground to achieve deep fixation. The cooperative action of the two significantly improves the anti-overturning ability of the sand barrier in a strong wind and sand environment, and eliminates the failure problem of traditional sand barriers caused by unstable root base.

[0019] The sand-preventing assembly adopts a bionic design. The spatial distribution of the sand-preventing stems and branches simulates the wind-resistant structure of natural vegetation. It can not only reduce the wind speed through the flow disturbance of the branches and leaves, but also form a continuous wind and sand interception barrier through the array layout of the stems, thereby achieving efficient fixation of the surface sand. This bionic design not only enhances the self-adaptive wind prevention ability of the sand barrier, but also improves the desertification landscape through the plant-like form, and has the dual functions of ecological management and environmental beautification.

[0020] In terms of material innovation, the application of degradable materials in the whole assembly fundamentally solves the environmental problem that traditional sand barrier materials are difficult to degrade naturally. When the sand barrier completes the sand fixation period, each component can gradually degrade into harmless substances, eliminating soil pollution caused by long-term residues, and truly realizing the sustainable development goal of "ecological management-material circulation-environmentally friendly".

[0021] In summary, the bionic windbreak sand barrier of the present application breaks through the technical bottleneck of traditional sand barriers in stability, ecological adaptability and environmental compatibility by organic combination of structural bionic design, three-dimensional anchoring technology and degradable materials, and provides an innovative solution with high efficiency and sustainability for desertification control.

[0022] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory and are not restrictive of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and serve to explain the principles of the present application. It is readily apparent to one skilled in the art that the following figures are merely some embodiments of the present application, and other figures can be obtained from these figures without creative labor by one of ordinary skill in the art.

[0024] Figure 1 A three-dimensional structural schematic diagram of a bionic windbreak sand barrier provided by an embodiment of the present application is shown.

[0025] Figure 2 A use schematic diagram of a bionic windbreak sand barrier provided by an embodiment of the present application is shown.

[0026] Figure 3 A three-dimensional structural schematic diagram of a bionic windbreak sand barrier provided by an embodiment of the present application is shown.

[0027] Figure 4 A top view schematic diagram of a bionic windbreak sand barrier provided by an embodiment of the present application is shown.

[0028] Figure 5 A cross-sectional schematic diagram of a main body in a bionic windbreak sand barrier provided by an embodiment of the present application is shown.

[0029] Figure 6 A top view schematic diagram of a fixing ring in a bionic windbreak sand barrier provided by an embodiment of the present application is shown.

[0030] Figure 7 A three-dimensional structural schematic diagram of a first sand prevention assembly in a bionic windbreak sand barrier provided by an embodiment of the present application is shown.

[0031] Figure 8 A front view schematic diagram of a second side root in a contracted state in a bionic windbreak sand barrier provided by an embodiment of the present application is shown.

[0032] Figure 9A three-dimensional structure schematic diagram of a sleeve in a bionic windbreak sand barrier provided by the embodiment of the application is shown.

[0033] The above drawings contain the following reference signs: 10, support assembly; 11, main body; 111, insertion end; 112, socket; 113, partition layer; 114, sand filling port; 12, first side root; 121, support end; 13, second side root; 131, fixed end; 132, compression ring; 14, fixed ring; 141, through hole; 15, sand prevention barrier; 16, sleeve; 161, first pipe sleeve; 162, second pipe sleeve; 20, first sand prevention assembly; 21, sand prevention branch; 22, sand prevention leaf; 23, fixed support rod. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0035] The following disclosure provides many different embodiments or examples for implementing the various structures of the present application. For the purpose of simplicity, the description of a particular example of the present application will be described in the following. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to the reference numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and it does not indicate the relationship between the various embodiments and / or settings discussed.

[0036] For the convenience of description, spatial relative terms can be used in the description to describe the relative position relationship or movement condition of one element or feature relative to another element or feature as shown in the drawings, such as "inner", "outer", "inboard", "outboard", "under", "below", "on", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over or the posture is changed or the movement state is changed, the directional indications will also change accordingly, for example: the element described as "under" or "below" another element or feature will be oriented as "above" or "above" another element or feature. Therefore, the example term "below" can include both up and down positions. The device can be additionally oriented (rotated by 90 degrees or in other directions) and the spatial relative relationship descriptors used in the description are interpreted accordingly.

[0037] In the description of the present application, the meaning of "a plurality of" is two or more.

[0038] In order to solve the problems of poor material environmental compatibility, insufficient structural adaptability, lack of ecological synergistic effect and the like of the conventional sand barrier for desertification control in the prior art, the present application proposes a new bionic wind erosion prevention sand barrier, which can be used for environmental management of desertification, such as gobi and desert, and can realize the effect of wind prevention and sand fixation.

[0039] Please refer to Figures 2 to 8 In some exemplary embodiments of the present application, the bionic wind erosion prevention sand barrier comprises a support assembly 10 and a first sand prevention assembly 20, the support assembly 10 comprises a main body 11, a plurality of first side roots 12 and a plurality of second side roots 13, each first side root 12 is connected around and arrayed on the radial side of the main body 11 and is arranged at an angle with the horizontal plane, each second side root 13 is arranged between adjacent first side roots 12 and is fixed relative to the first side roots 12, and the second side root 13 is arranged perpendicular to the horizontal plane; the first sand prevention assembly 20 comprises a plurality of sand prevention layers arranged in sequence in the vertical direction, the sand prevention layer comprises a plurality of sand prevention branches 21 and a plurality of sand prevention leaves 22, each sand prevention branch 21 is connected around and arrayed on the radial side of the main body 11, and a plurality of sand prevention leaves 22 are connected on the radial side of the sand prevention branch 21; wherein the main body 11, the first side root 12, the second side root 13, the sand prevention branch 21 and the sand prevention leaf 22 are all made of degradable material.

[0040] In the above arrangement, the support assembly 10 forms a stable three-dimensional anchoring system through the multi-dimensional support structure of the main body 11, the first side root 12 and the second side root 13. The horizontally inclined first side root 12 can effectively disperse the impact force of wind and sand, and the vertically arranged second side root 13 can be deeply fixed into the ground to significantly improve the anti-overturning ability of the sand barrier in a strong wind and sand environment, thereby eliminating the failure of the traditional sand barrier caused by unstable root base.

[0041] The first sand prevention assembly 20 adopts a bionic design, and the spatial distribution of the sand prevention branches 21 and the sand prevention leaves 22 simulates the wind-resistant structure of natural vegetation. The sand prevention leaves 22 can reduce the wind speed through the flow disturbance effect, and the sand prevention branches 21 can form a continuous wind and sand interception barrier through the array layout, thereby achieving efficient fixation of the surface sand. This bionic design not only enhances the self-adaptive wind prevention ability of the sand barrier, but also improves the desertification landscape through the plant-like form, thereby achieving the dual functions of ecological management and environmental beautification.

[0042] In terms of material innovation, the application of degradable materials in the entire assembly fundamentally solves the environmental problem of the difficulty of natural degradation of traditional sand barrier materials. When the sand barrier completes the sand fixation period, each component can be gradually degraded into harmless substances, thereby eliminating soil pollution caused by long-term residue and truly achieving the sustainable development goal of “ecological management-material circulation-environmental friendliness”.

[0043] In summary, the bionic wind and erosion prevention sand barrier in the embodiment breaks through the technical bottlenecks of traditional sand barriers in stability, ecological adaptability and environmental compatibility through the organic combination of structural bionic design, three-dimensional anchoring technology and degradable materials, thereby providing an innovative solution for desertification management with high efficiency and sustainability.

[0044] In some alternative embodiments, the main body 11 can be provided with a pipe-shaped material with an appropriate caliber, and one end of the main body 11 is provided as an insertion end 111 which can be inserted into the ground. The insertion end 111 is provided with a tapered port with a gradually decreasing caliber to facilitate insertion into the ground. Specifically, the insertion end 111 can be designed as a double-wedge-shaped structure with an angle of 25° to 40° between the wedge surface and the vertical surface passing through the axis.

[0045] In some alternative embodiments, the main body 11 includes a first section inserted into the ground and a second section located on the ground, and the length ratio of the first section to the second section is between 1:2 and 1:3.5.

[0046] In some alternative embodiments, the second section is provided with a sand prevention layer every 25 cm to 30 cm from the top to the bottom of the second section.

[0047] In some optional embodiments, the second section has three or more sockets 112 arranged in a radially outer array at intervals of 25 cm to 30 cm from top to bottom at one end away from the ground to facilitate the insertion of the sand-proof branches 21 .

[0048] like Figure 5 As shown, in some exemplary embodiments, a plurality of partition layers 113 are sequentially arranged inside the main body 11 along the axial direction, and the partition layers 113 divide the main body 11 into a plurality of accommodating spaces. A sand filling port 114 is provided on the partition layer 113 between any two accommodating spaces, and no sand filling port 114 is provided on the partition layer 113 located at the bottom.

[0049] In the above-described configuration, multiple partition layers 113 are layered along the axial line within the main body 11, dividing its interior into independent, vertically connected spaces. Except for the bottom partition layer 113, each partition layer 113 is equipped with a sand filling port 114. This design implements a differentiated sand filling process—after installation, sand is injected through the upper sand filling port 114. The diversion channels formed by the offset openings allow fine sand particles to naturally settle to the bottom layer, while coarse particles remain in the upper layer. This ultimately creates a gradient mass distribution: "bottom layer high-density counterweight - middle layer medium-strength fill - upper layer buffer transition."

[0050] Furthermore, the sand filling ports 114 on the different layers of the separation layer 113 overlap in their horizontal projections. This gradient counterweight structure significantly enhances the stability of the main body 11 through a layered sand filling mechanism: the absence of sand filling ports 114 in the bottom layer prevents sand loss and ensures a constant foundation weight. The staggered sand filling ports 114 in the middle layer allow sand to penetrate downward while maintaining the required sand volume in the upper layers, creating a layer-by-layer mass accumulation effect. The upper sand filling ports 114 serve as the main filling channels, and in conjunction with the support structure, which is tilted and inserted into the ground, the center of gravity of the main body 11 gradually shifts downward as the sand fills, effectively enhancing its pullout resistance and wind-induced overturning resistance. The sand filling process requires no additional equipment, utilizing natural particle grading to achieve adaptive counterweighting. This, combined with the external lateral root support system of the main body 11, forms a synergistically stable "internal counterweight-external anchor" structure, making it particularly suitable for loose sandy soils. From a structural design perspective, this solves the problem of traditional sand barriers prone to collapse due to insufficient deadweight.

[0051] In some exemplary embodiments, the main body 11 may be made of natural materials such as bamboo and subjected to antiseptic treatment to increase its service life.

[0052] like Figure 2As shown, in some exemplary embodiments, the axial angle between the sand-control branches 21 of the sand-control layer and the axis of the main body 11 gradually decreases in the vertically upward direction. This variable-angle array layout disrupts the regularity of airflow motion, creating a disordered turbulent flow structure in the wind-blown sand flow field: the lower layer of branches with larger inclinations form an initial wind-blocking interface, forcing the high-speed airflow to rise and change its direction; the upper layer of branches with smaller inclinations further cuts into the airflow, causing the overall flow field to present a turbulent vortex state, effectively hindering the linear motion trajectory of wind-blown sand particles and physically inhibiting wind-blown sand penetration and the initiation of surface sand.

[0053] This approach also simulates the gradient structure of natural vegetation canopies—low shrubs have steeper branches to stabilize their roots, while taller trees have shallower branches to adapt to high-altitude wind conditions. This allows the sand barrier to closely emulate the wind-resistant properties of real plant communities in terms of morphological biomimetic. Combined with the layered arrangement of 22 sand-control branches and leaves on branches at varying angles, a three-dimensional windbreak system is formed: "strong interception at the bottom, fine cutting at the middle, and a disturbance field at the top." Compared to traditional vertical or equiangular arrangements, this significantly improves wind and sand interception efficiency. Furthermore, this naturalistic design reduces the perceived environmental incongruity of artificial facilities and enhances the landscape integration of ecological restoration projects.

[0054] like Figure 2 As shown, in some exemplary embodiments, the difference between the axial angles of the sand-control branches 21 of adjacent sand-control layers and the axis of the main body 11 is x, and 0 degrees ≤ x ≤ 25 degrees.

[0055] When x = 0°, an equi-angled stacking layout is formed, ensuring ease of construction while achieving basic wind-blocking functionality. As x increases from 5° to 25°, the spatial dislocation of branches in adjacent layers gradually disrupts the laminar flow characteristics of the airflow, causing high-speed airflow to undergo sudden changes in direction and energy dissipation as it passes through the sand-control layer. In particular, when x = 15° to 20°, the angle differences between branches of plants of different heights in natural vegetation communities (e.g., herbaceous branches with an inclination angle of approximately 30°, and subshrubs with an inclination angle of approximately 15°) can be simulated to construct a gradient spoiler structure that conforms to the characteristics of natural wind fields. The lower layer of branches forms an initial interception at a larger inclination angle (e.g., 45°), the middle layer fine-tunes the airflow direction through an angle difference of 15° to 20°, and the upper layer completes fine cutting at a smaller inclination angle (e.g., 20° to 5°), ultimately forming a continuously changing three-dimensional spoiler space in the vertical direction.

[0056] In some exemplary embodiments of the present application, the difference between the axial direction of the sand-preventing branch 21 of the adjacent sand-preventing layer and the angle of the axis of the main body 11 is x, which can be 0 degrees, 5 degrees, 6 degrees, 7.5 degrees, 8 degrees, 9.5 degrees, 10 degrees, 11.5 degrees, 12.5 degrees, 15 degrees, 18.5 degrees, 19.5 degrees, 21 degrees, or 24.5 degrees. The difference between the axial direction of the sand-preventing branch 21 of each adjacent sand-preventing layer and the angle of the axis of the main body 11 can be adaptively selected according to the setting position of the bionic wind-erosion-preventing sand barrier, the surrounding environment, the annual meteorological distribution, and the like.

[0057] As shown in FIG. 1, Figure 4 In some exemplary embodiments, the projections of the sand-preventing branches 21 of the adjacent sand-preventing layers do not overlap, and the angle between the projections of any adjacent sand-preventing branches 21 is equal.

[0058] In the above arrangement, the branches in the same layer are equally angularly spaced (e.g., in an n-polygon array) around the axis of the main body 11, and the projection central angles of the adjacent upper and lower branches are staggered, so as to ensure that the projection areas of any two layers do not overlap. Specifically, when the projection of a branch in a layer forms an m-equal-division circumferential direction (with an angular interval θ = 360° / m), the projection of the branch in the adjacent layer is rotated by an angle θ / 2, so that the branches in the upper and lower layers are distributed in a staggered manner like an inserted flower in the horizontal plane. This arrangement not only realizes the standardized design of geometric rules, but also more deeply simulates the growth characteristics of the "staggered emergence of lateral branches of stems" of natural plants. The staggered projection structure of the sand barrier forms a three-dimensional branch distribution of natural plants in the three-dimensional space, maximizes the use of the wind-blocking area, and reduces the self-structure shielding.

[0059] As shown in FIG. 1, Figure 4 In some exemplary embodiments, the projection arrangement has the following advantages: the circumferentially equally angularly spaced arrangement (e.g., θ = 60°, 45°, etc.) avoids the formation of regular wind channels, so that the wind-sand flow encounters uniformly distributed interception interfaces when passing through each layer. The projection arrangement simulates the crown projection characteristics (e.g., the staggered distribution of branches and leaves of shrub and herb layers) of natural plant communities and the spiral growth rule of lateral branches of plants, which not only ensures the independent wind-blocking area of each layer of sand-preventing branches 21, but also forms a three-dimensional shielding network through staggered projection. The circumferentially equally angularly spaced projection arrangement makes the wind-sand impact force uniformly act on the periphery of the main body 11, avoiding the problem of local stress concentration leading to branch breakage or main body 11 tilting. The installation points of the sand-preventing branches 21 on the radial side of the main body 11 are uniformly distributed, avoiding the problem of weakening of the strength of the main body caused by traditional concentrated punching. The above structure has the advantages of technical scientificity, ecological simulation reality, and engineering practicability.

[0060] As shown in FIG. 1, Figure 2 and Figure 4As shown, in some exemplary embodiments, the projections of the sand-preventing branches 21 of any sand-preventing layer and the sand-preventing branches 21 of the sand-preventing layer above and below the sand-preventing layer in the horizontal plane overlap, and the two corresponding sand-preventing branches 21 are connected and fixed by the fixed support rods 23.

[0061] The projections of the sand-preventing branches 21 of any sand-preventing layer and the sand-preventing branches 21 of the sand-preventing layer above and below the sand-preventing layer in the horizontal plane overlap, and the two corresponding sand-preventing branches 21 are connected and fixed by the fixed support rods 23. The structure builds an "interlayer truss support system". The structure is inspired by the mechanical transmission principle of the main branches and lateral branches of trees. Like a tree that connects lateral branches at different heights by wood fibers to enhance wind resistance, the fixed support rods 23 of the sand barrier convert the horizontal load of the branches of the upper and lower layers into axial tension / compression, forming a three-dimensional support network.

[0062] In some alternative embodiments, the fixed support rod 23 can be inserted into the sand-preventing branch 21 at one end and form a ring structure at the other end, which is sleeved outside the other sand-preventing branch 21. Specifically, the fixed support rod 23 can be provided with a limiting plug-in tenon at one end, which can be precisely inserted into the pre-set radial blind hole of the sand-preventing branch 21, and the inner wall can be provided with anti-slip lines. The other end is shaped into an elastic ring-shaped sleeve, which is sleeved outside the circumferential outer side of the adjacent layer branch, and the 3 groups of symmetric convex edges on the inner wall of the sleeve and the annular groove on the surface of the branch form a buckle cooperation.

[0063] In some alternative embodiments, the fixed support rod 23 can be inserted into the sand-preventing branch 21 at both ends to form a fixed. A full plug-in design is adopted, and both ends of the fixed support rod 23 are processed into tapered plug-in joints, which form an interference fit with the through plug-in hole at the end of the sand-preventing branch 21. The structure forms a linear support shaft through rigid anchoring at both ends, which can convert the interlayer shear load into axial compression, effectively improving the vertical support stiffness.

[0064] In some alternative embodiments, both ends can form a ring structure and be sleeved outside the circumferential outer side of a sand-preventing branch 21. Both ends of the fixed support rod 23 are open-type elastic rings, which are sleeved outside the smooth segments of the upper and lower layer branches by radial expansion. The spiral protrusions inside the ring body and the micro-texture on the surface of the branch form friction locking, and the degradable binding belt at the opening of the ring body realizes double fixation. This structure can avoid processing holes on the branch, preserve the material integrity, improve the bending strength of the branch, and is suitable for sand-preventing branches 21 made of flexible plant fibers.

[0065] As shown in Figures 2 to 4 and Figure 6 In some exemplary embodiments, the support assembly 10 further comprises a fixed ring 14, which is arranged around the main body 11 and fixedly connected with each first lateral root 12, and each second lateral root 13 is fixedly connected with the fixed ring 14.

[0066] The fixed ring 14 integrates the first side roots 12 in a radial distribution into a closed ring support system, making the discrete first side roots 12 form a rigidly connected whole in the circumferential direction, equivalent to constructing a "truss ring beam" around the main body 11, which can convert the local deformation of a single side root into the overall coordinated stress of the ring structure when subjected to horizontal load of wind and sand, effectively improving the structural rigidity.

[0067] As the installation carrier of the second side roots 13, it relies on the stability of the frame system formed by the main body 11 and the first side roots 12, so that the assembly of the second side roots 13 has high reference and reliability.

[0068] As shown in Figure 2 and Figure 8 , in some exemplary embodiments, the second side roots 13 are U-shaped rods, which include two fixed ends 131 that pass through two through holes 141 of the fixed ring 14 in the vertical direction to form a sand prevention barrier 15 between the ground and the fixed ring 14.

[0069] The structure of the U-shaped rod itself keeps the relative position between the two fixed ends 131, and they support each other when subjected to force, maintaining the integrity and good supporting performance of the entire frame structure. At the same time, the scattered second side roots 13 can both limit and form a barrier.

[0070] As shown in Figure 2 and Figure 8 , in some exemplary embodiments, the second side roots 13 include compression rings 132 that are sleeved on the fixed ends 131 to keep the fixed ends 131 in a contracted state, and the fixed ends 131 are inserted into the ground after the compression rings 132 are removed, so that the fixed ends 131 stretch to form the sand prevention barrier 15.

[0071] The fixed ends 131 are pre-set with multiple elastic branch structures (the branch angles can reach 20° to 30°), which are radially expanded when not constrained and contracted into a cylindrical shape after being tightened by the compression rings 132, so that they can easily pass through the through holes 141.

[0072] And the structure of the end makes it easier to contact the land and form a stable sand prevention barrier 15. Specifically, when the fixed ends 131 contact the ground, the compression rings 132 are removed, and the elastic branches radially expand under the action of material restoring force, forming a "barbed" mechanical engagement with the surrounding sand, which significantly improves the anti-pulling force in sandy soil. The principle is as follows: first, the contact area changes abruptly: the contact area of the fixed ends 131 with the soil increases after expansion, forming a multi-point anchoring interface; second, passive anti-pulling effect: the barbed structure at the end of the branch automatically wedges into the sand layer under the action of pulling force, and is subjected to the pressure of the sand, so that the vertical pulling force is converted into horizontal extrusion stress, effectively inhibiting the pulling of the anchor.

[0073] In some exemplary embodiments, the area enclosed by the sand prevention barrier 15 can create a low-disturbance growth environment for the sand-fixing plants, which is conducive to the growth of the plants. As the sand-fixing plants grow, their root systems gradually interweave with the sand intercepted by the pores, forming a dense composite sand-fixing layer. This composite sand-fixing layer further reduces sand loss, achieving a good effect of synergistic effect of ecological protection and engineering protection, and effectively improving the efficiency of the overall wind prevention and sand fixation system.

[0074] In some embodiments, in order to achieve better wind prevention and sand fixation effect, the selected sand-fixing plants have a variety of choices. For example, Calligonum rubicundum has developed root system and strong drought resistance, which can penetrate deep into the ground to stabilize sand; flower stick can adapt to dry and sandy environment and grow rapidly to effectively block wind and sand; shrub pea has certain forage value in addition to wind prevention and sand fixation; sand millet can grow in harsh sandy environment and help to improve soil structure; Alnus henryi can root in the desert by its unique root system to reduce sand loss; Haloxylon ammodendron has strong vitality and is of great significance to soil and water conservation and wind prevention and sand fixation. Therefore, the sand-fixing plants can be selected from one or more of Calligonum rubicundum, flower stick, shrub pea, sand millet, Alnus henryi and Haloxylon ammodendron for planting in combination to fully exert their sand-fixing advantages and build a more perfect ecological protection system.

[0075] As shown in Figure 7 In some exemplary embodiments, the sand prevention branches and leaves 22 are arranged in multiple layers along the axis direction of the sand prevention branch 21, and the sand prevention branches and leaves 22 of each layer are arranged in an array around the sand prevention branch 21.

[0076] The branches and leaves are arranged in 3-5 layers along the axis of the branch at equal intervals of 5-10 cm, and each layer of branches and leaves is arrayed at equal angles of 120° / 90° / 60° around the branch as the center (for example, 3 layers of branches and leaves correspond to an interval of 120°, and 4 layers correspond to an interval of 90°), and the angle between a single branch and the axis of the branch is controlled to be 30°-45°, and the lower layer can be set larger to enhance the sand blocking near the ground surface, and the upper layer can be relatively smaller to reduce wind resistance. This layout makes the branches and leaves form a gradient distribution of "sparseness on the upper layer and denseness on the lower layer" in three-dimensional space, achieving the spiral ingrowth rule of the leaves of Haloxylon ammodendron and Tamarix, and converting the photosynthesis form of natural vegetation into a wind and sand interception function structure.

[0077] As shown in Figure 3 and Figure 9 In some exemplary embodiments, the support assembly 10 further includes a sleeve 16, and the sleeve 16 includes vertically communicating first and second sleeve tubes 161 and 162. The first sleeve tube 161 is a through tube, the first sleeve tube 161 is sleeved on the sand prevention branch 21, the second sleeve tube 162 is inserted into the first lateral root 12, and the sand prevention branch 21 is embedded on the main body 11. The connection mode of the sleeve is stable and reliable, and is not easy to fall off.

[0078] AsFigure 7 As shown, in some exemplary embodiments, the sand-preventing branch and leaf 22 adopts a bionic fiber weaving process to construct a mechanical support system similar to a natural plant leaf through a three-dimensional spiral lamination structure. The main body of the branch and leaf is transversely woven by degradable fiber bundles (such as straw fiber and polylactic acid composite spinning) with a diameter of 3 mm.

[0079] The extension direction of the sand-preventing branch and leaf 22 is generally along the direction parallel to the axis of the sand-preventing branch 21, and the bottom thereof is fixed in the cross hole through a bio-based adhesive.

[0080] A bundle of weft fibers is gradually wound along the axis of the sand-preventing branch 21 around the radial outer side of the sand-preventing branch 21.

[0081] When the weft fiber encounters the cross hole in the shape of a triangle on the branch side, it presses through the cross hole and presses the sand-preventing branch and leaf 22 in the cross hole. When the sand-preventing branch and leaf 22 reaches the next cross hole in the axial direction, the weft fiber presses the sand-preventing branch and leaf 22 in the next cross hole, and the previous sand-preventing branch and leaf 22 spreads outward. In this way, on the one hand, it ensures that the sand-preventing branch and leaf 22 is pressed by the weft fiber and will not fall off, and on the other hand, it protects the integrity of the surface of the sand-preventing branch 21.

[0082] In some exemplary embodiments of the present application, the main body 11, the first side root 12, the second side root 13, and the sand-preventing branch 21 can be selected from bamboo, which is treated by carbonization (moisture content ≤8%) to improve the wind and sand abrasion resistance, and is coated with natural tung oil on the surface to extend the service life to more than 3 years.

[0083] The material of the sand-preventing branch and leaf 22 and the sand-preventing barrier 31 can be selected from rattan, which is soaked in a 3% to 10% borax solution before assembly and the moisture content thereof is controlled to be between 12% and 15%. As a natural material, rattan has a certain flexibility and strength, and is suitable for constructing the structure of the wind and sand prevention barrier.

[0084] When performing preservation treatment, the bamboo treated by carbonization can be preserved and improve its own structural strength. The rattan can be soaked in a borax solution to enhance its resistance to insect damage and preservation ability, so that it can maintain the integrity of the structure and the stability of the performance for a longer time under complex conditions such as wind and sand environment and possible moisture, and extend the service life of the bionic wind and sand prevention barrier.

[0085] In some exemplary embodiments, the main body 11, first lateral roots 12, second lateral roots 13, sand-control branches 21, and sand-control leaves 22 can all be made primarily of renewable plant-based materials, preferably natural plant-based materials such as straw fiber, coconut fiber, and bamboo fiber, through physical modification or biocomposite processes. These materials, derived from agricultural and forestry waste, can be recycled through sustainable cultivation, eliminating the unsustainable dependence of traditional plastics on petrochemicals and meeting the dual needs of "ecological restoration and resource recycling" in desertification control.

[0086] Controlled Degradation and Soil Improvement: Plant materials gradually degrade into carbon dioxide, water, and humus in the natural environment through microbial decomposition (such as fungi and soil bacteria). The degradation cycle can be controlled by the fiber ratio (3-5 years is suitable for the typical use of sand barriers). The organic matter released during the degradation process directly improves the water retention and nutrient content of the sandy subsoil, providing a growth substrate for sand-fixing plants in the sheltered area, forming an ecological closed loop of "sand barrier fixation - material degradation - soil improvement - vegetation growth."

[0087] In a specific embodiment, a bionic wind erosion sand barrier based on natural bamboo and fiber weaving technology is provided. The parameters and connection relationships of the components are as follows: 1. Main Body11.

[0088] Structural parameters: A bamboo pole with an inner diameter of 10cm and a total length of 1.7m is used, with a height of 1.2m above ground and a depth of 50cm underground. The lower end of the pole is processed into a 30° double-sided wedge-shaped groove to facilitate vertical insertion into sandy foundations.

[0089] Counterweight and sand filling design: A 1cm diameter through-hole is opened at the 11th bamboo node of the main body. After the sand barrier is installed, sand is filled into the inside of the pole through the circular hole to form a counterweight structure with the center of gravity moved downward, thereby improving anti-overturning stability.

[0090] Side branch installation holes: 4 layers of sockets 112 are provided on the above-ground part from bottom to top.

[0091] The first layer: 10 cm from the ground, the socket 112 has a diameter of 50±2 mm, an angle of 60° with the axis of the main body 11, and 3 holes in each layer are evenly distributed in a 120° circumferential direction.

[0092] The second layer: the longitudinal spacing is 30 cm, the aperture of the socket 112 is 50±2 mm, the angle between the socket 112 and the axis of the main body 11 is 45°, and it is staggered in a triangular shape with the first layer.

[0093] The third layer: the longitudinal spacing is 30 cm, the diameter of the socket 112 is 30±2 mm, the angle between the socket 112 and the axis of the main body 11 is 45°, and it is staggered in a triangular shape with the second layer.

[0094] The fourth layer: the longitudinal interval is 30 cm, the socket 112 hole diameter is 30±2 mm, the angle with the main body 11 axis is 30°, and the third layer is in a triangular shape.

[0095] II. Sand prevention branch 21.

[0096] Branch parameters: a total of 4 layers from bottom to top, the length is 60 cm, 45 cm, 30 cm and 15 cm respectively, and the diameter is 5 cm, 5 cm, 3 cm and 3 cm respectively. The lower part is exposed by 3 cm for structural reinforcement. The part inserted into the main body 11 corresponds to the hole position of each layer and is pre-installed with a rubber gasket with a thickness of 2 mm, which can reduce the gap expansion caused by wind and sand abrasion.

[0097] Fixing method: the two layers of sand prevention branches 21 arranged at intervals are fixed by penetrating the fixing support 23, so that the main body 11 and the branches form a "truss type" wind-resistant structure. Specifically, a fixing support 23 is locked to form a rigid node connection.

[0098] III. Sand prevention branch and leaf 22.

[0099] Woven structure: 3 mm diameter bamboo fiber bundle (warp direction) and Stipa capillata fiber bundle (weft direction) are spirally woven.

[0100] The sand prevention branch and leaf 22 is 30 cm long, and the base section 5 cm is embedded in the cross hole of the sand prevention branch 21.

[0101] The surface of the sand prevention branch 21 is provided with a triangular cross hole every 2 cm, and the hole diameter is 3±1 mm. The sand prevention branch and leaf 22 is arranged on both sides of the warp direction of the cross hole.

[0102] The Stipa capillata fiber bundle presses the sand prevention branch and leaf 22 of the previous layer on one side and the sand prevention branch and leaf 22 in the cross hole on the other side, and is pressed in turn.

[0103] The helical weaving pitch is 2 cm, and the weft of each layer maintains a phase difference of 15° with the upper layer to simulate the helical arrangement mode of the Stipa capillata leaf.

[0104] The sand prevention branch and leaf 22 has a shape similar to a chicken feather duster, which plays a role in wind and sand prevention through dense branches and leaves.

[0105] IV. Support assembly 10.

[0106] First side root 12: 3 bamboo poles with a length of 1.5 m and a diameter of 5 cm are inserted into the ground at an angle of 120°, and the lower end is 50 cm away from the main body 11 horizontally, and the insertion angle is 45°. The upper end is nested with the lower end of the sand prevention branch 21 of the third layer to form a triangular stable support.

[0107] Fixed ring 14 (transverse reinforcement ring): a bamboo ring with an inner diameter of 8 cm, 30 cm above the ground, with three lock holes with a diameter of 50+2 mm, which precisely match the upper end of the first lateral root 12 to form a horizontal rigid connection layer.

[0108] Second lateral roots 13: Use a 3cm diameter, 1.2m long curved bamboo pole with 30cm long "capillary root-like" bifurcated structures (i.e., fixed ends 131) processed at both ends. Before installation, use 2mm diameter bamboo wire (i.e., compression ring 132) to tie them together. The transverse reinforcement ring has 20+2mm through holes 141 opened every 15cm. After the capillary root parts at both ends of the second lateral root 13 are inserted into the holes, the ties are released, and the bifurcated structure forms a mechanical bite with the sand body. The distance between adjacent second lateral roots 13 is 15cm, and they are installed in a cross-type manner to enhance the horizontal anchoring stiffness.

[0109] The bionic wind erosion prevention sand barrier provided in this embodiment takes into account the capabilities of degradation, bionic self-adaptation, and efficient sand fixation. By simulating the morphology and mechanical properties of natural plants, the stability and environmental friendliness of the sand barrier are improved, and the construction is convenient.

[0110] It should be understood that the present application is not limited to the detailed structure and arrangement of the components proposed in this application. The present application can have other embodiments and can be implemented and executed in a variety of ways. The aforementioned variations and modifications fall within the scope of this application. It should be understood that the present application disclosed and defined in this application extends to all alternative combinations of two or more individual features mentioned or apparent in the text and / or the drawings. All of these different combinations constitute multiple alternative aspects of the present application. The embodiments described in this application illustrate the best known methods for implementing the present application and will enable those skilled in the art to utilize the present application.

Claims

1. A bionic wind erosion sand barrier, characterized in that: include: A support assembly comprising a main body, a plurality of first lateral roots, and a plurality of second lateral roots, wherein the first lateral roots surround and are connected in an array to a radial side surface of the main body and are arranged at an angle in the horizontal plane, and the second lateral roots are arranged between adjacent first lateral roots and fixed relative to the first lateral roots, and are arranged perpendicular to the horizontal plane; and The first sand-proof component includes a plurality of sand-proof layers arranged in sequence along a vertical direction, wherein the sand-proof layers include a plurality of sand-proof branches and a plurality of sand-proof leaves, wherein the sand-proof branches surround and are connected in an array to the radial side of the main body, and the plurality of sand-proof leaves are connected to the radial side of the sand-proof branches; The main body, the first lateral roots, the second lateral roots, the sand-proof branches and leaves are all made of degradable materials.

2. The bionic wind erosion sand barrier according to claim 1, characterized in that: Along the vertical upward direction, the angle between the axial direction of the sand-proof branches of the sand-proof layer and the axis of the main body tends to gradually decrease.

3. The bionic wind erosion sand barrier according to claim 2, characterized in that: The difference between the axial angles of the sand-control branches adjacent to the sand-control layers and the axis of the main body is x, and 0 degrees ≤ x ≤ 25 degrees.

4. The bionic wind erosion sand barrier according to claim 1, characterized in that: The projections of the sand-control branches of adjacent sand-control layers on the horizontal plane do not overlap, and the angles between the projections of any adjacent sand-control branches are equal.

5. The bionic wind erosion sand barrier according to claim 4, characterized in that: The projections of the sand-proof branches of the upper and lower sand-proof layers of any one sand-proof layer on the horizontal plane overlap, and the corresponding two sand-proof branches are connected and fixed by a fixed support rod.

6. The bionic wind erosion sand barrier according to claim 1, characterized in that: The support assembly further includes a fixing ring, which is disposed around the main body and fixedly connected to each of the first side roots, and each of the second side roots is fixedly connected to the fixing ring.

7. The bionic wind erosion prevention sand barrier according to claim 6, characterized in that: The second side root is a U-shaped rod body including two fixed ends. After the two fixed ends pass through two through holes provided in the vertical direction of the fixing ring, a sand barrier is formed between the ground and the fixing ring.

8. The bionic wind erosion prevention sand barrier according to claim 7, characterized in that: The second lateral root includes a compression ring, which is sleeved on the fixed end to put the fixed end in a contracted state. After the fixed end is inserted between the ground and the fixed ring, the compression ring is removed to extend the fixed end to form the sand barrier.

9. The bionic wind erosion prevention sand barrier according to any one of claims 1 to 8, characterized in that: The sand-proof branches and leaves are arranged in multiple layers along the axial direction of the sand-proof branches and leaves, and the sand-proof branches and leaves of each layer are arranged in a surrounding and array manner.

10. The bionic wind erosion prevention sand barrier according to any one of claims 1 to 8, characterized in that: The support assembly also includes a sleeve, which includes a first sleeve and a second sleeve that are vertically connected. The first sleeve is a through pipe, which is sleeved on the sand-proof branch. The first lateral root is inserted into the second sleeve, and the sand-proof branch is embedded in the main body.

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