Sand-trapping trap, excavation-free sand-fixing system and method for gobi desert strong wind area

Abstract

The application discloses a sand trapping trap, a non-excavation sand fixing system and method for a gobi desert strong wind area. The non-excavation sand fixing system for the gobi desert strong wind area comprises a suspension type wind barrier, a sand trapping trap and a suspension type sand fixing assembly arranged in sequence along a main wind direction, wherein the distance between the suspension type wind barrier and the sand trapping trap is d1, the distance between the sand trapping trap and the suspension type sand fixing assembly is d2, and the distance between the suspension type sand fixing assembly and a protected object is d3, d1 < 20h1, h1 is the height of the suspension type wind barrier, h1 ranges from 1.5 to 3 m, d2 < 20h2, h2 is the height of the sand trapping trap, h2 ranges from 20 to 100 cm, and d3 ranges from 10 to 100 m. In the upwind direction, the non-excavation suspension type wind barrier and the sand trapping trap can effectively trap wind sand particles. In the downwind direction, the non-excavation suspension type sand fixing assembly completely fixes the remaining wind sand which is not intercepted, thereby reducing the gobi sand disaster and also reducing the problem of sand and dust flying caused by engineering disturbance.

Description

Technical Field

[0001] This invention relates to the field of ecological environment management technology in desert areas, and in particular to a sand trap, a non-excavation sand fixation system and method for use in strong wind areas of the Gobi Desert. Background Technology

[0002] In the Gobi Desert region, common wind and sand protection measures include tall vertical sand barriers, sand-fixing grids, sand retaining walls, and windbreak and dust suppression nets. These measures typically require the pouring of foundation piles, followed by the erection of pillars and fixing stakes to stabilize the mesh structure or wall. However, the related excavation work often damages the ground surface. Sedimentation ditches, intercepting ditches, and sand-retaining dikes are commonly used sand-fixing methods in the Gobi Desert region. They have highly efficient sand-fixing capabilities, but their drawback is that they cause severe damage to the Gobi surface. These ditches are strip-shaped, deep, and have a large area. The excavated fine material often accumulates upwind of the ditches, forming sand retaining dikes, which can lead to severe wind erosion and dust storms. Therefore, this technology urgently needs improvement to reduce damage to the Gobi surface.

[0003] Furthermore, covering measures such as biological crusting, sand-fixing agents, hydroseeding, clay, bentonite, and gravel mulching have shallow penetration depths and low strength, covering only a few millimeters to a few centimeters of the surface. These mulch layers are loose and lack strength, easily damaged by compaction or trampling, and may even be pressed into the sand layer, exposing the underlying fine sand and triggering wind erosion. Especially in arid regions, during the initial stages of large-scale wind and solar power base construction, disturbances to the Gobi surface can cause dust storms, posing a risk of sand burial to downstream transportation and infrastructure. The near-surface gravel layer in the Gobi region is typically only a few centimeters to a dozen centimeters thick, beneath which lies a layer of mirabilite, saline-alkali soil, or hard clay several tens of centimeters thick, with a thicker mixture of fine sand and gravel at the bottom. The surface gravel layer acts like armor, protecting the underlying fine material from wind erosion. Therefore, the principle of wind and sand protection in the Gobi region is to minimize disturbance and carry out greening under suitable conditions. Desertification control in this region is challenging and urgent.

[0004] To address the aforementioned issues, we need to provide an effective wind and sand control solution for the Gobi Desert region to reduce or avoid disturbances, thereby mitigating the dust hazards that human-induced disturbances may cause during wind and sand protection. Summary of the Invention

[0005] The purpose of this invention is to provide a sand trap, a non-excavation sand fixation system and method for use in windy areas of the Gobi Desert, thereby overcoming the shortcomings of the prior art.

[0006] To achieve the aforementioned objectives, the technical solution adopted by this invention includes:

[0007] The first aspect of the present invention provides a sand trap, including a top surface, a first side surface, and a second side surface. The top surface is provided with a first sand-fixing grid. The first side surface and the second side surface are arranged sequentially on both sides of the first sand-fixing grid along the prevailing wind direction. The first sand-fixing grid, the first side surface, the second side surface and the ground surface form a sand accumulation chamber.

[0008] The first and second sides here are arranged opposite each other, which can be understood as an uphill and a downhill ramp. The uphill and downhill ramps are made of plant fiber foamed cement boards with a thickness of 3-5cm, a length of 1-2m, and a width of 1-2m.

[0009] In some more specific implementations, the angle between the first side and the ground surface ranges from 15 to 40 degrees, and the angle between the second side and the ground surface ranges from 15 to 40 degrees.

[0010] In some more specific implementations, the sand trap also includes a first support mechanism, which is used to support the first sand-fixing grid at a first distance from the ground surface.

[0011] Preferably, a first limiting member is provided on the first support mechanism, and the first sand-fixing grid is horizontally positioned above the first limiting member. When a second distance is reached between the sand accumulation surface in the sand accumulation chamber and the first sand-fixing grid, the first limiting member moves vertically on the first support mechanism in a direction away from the ground surface. More preferably, the first distance ranges from 20 to 100 cm, and the second distance ranges from 5 to 10 cm.

[0012] Preferably, the first support mechanism includes multiple columns arranged in a rectangular array and passing through the top surface to support the first sand-fixing grid. The first limiting member is disposed on the columns. The spacing between the columns is 1 to 2 m, the height of the columns is 1 to 1.5 m, and the height of the columns protruding above the ground surface is 0.5 to 1 m.

[0013] In some more specific implementations, the sand trap also includes multiple second attachment mechanisms, which interweave to form a first sand-fixing grid.

[0014] Specifically, the second attachment mechanism can be understood as branches inserted into the first sand-fixing grid. The first sand-fixing grid is woven from branches, with a permeability of 30% to 50%, a length range depending on the length of the protected object, and a width range of 2 to 5 meters. The branches used to weave the first sand-fixing grid are branches of shrubs such as sand willow, tamarisk, caragana, and tamarisk, with a diameter range of 0.5 to 3 cm and a length of 0.5 to 3 meters. The branches used for insertion can be branches of trees, shrubs, or herbs. Among them, the plant branches can be trees, such as jujube, poplar, and pine; or shrubs, such as artemisia, thorn, camel thorn, saxaul, and juniper; or herbs, such as suga and sand rice. The branches used for insertion can be leafy plant branches or whole plants.

[0015] A second aspect of the present invention provides a non-excavation sand fixation system for strong wind areas in the Gobi Desert, comprising a suspended windbreak, a sand trap, and a suspended sand fixation component arranged sequentially along the prevailing wind direction.

[0016] When exploring the protection range of general obstacles, it was found that the boundary of the downwind wind weakening area is usually within 20 times the height of the obstacle. Based on this, to ensure that suspended windbreaks, sand traps, and suspended sand-fixing components are all within the protected area, this application needs to limit the spacing between the components. Theoretically, the greater the height and width of the components, the better, but the angle should be relatively low. Therefore, the distance between the suspended windbreak and the sand trap is set as d1, the distance between the sand trap and the suspended sand-fixing component is set as d2, and the distance between the suspended sand-fixing component and the protected object is set as d3. Specifically, d1 < 20h1, where h1 is the height of the suspended windbreak, with a value ranging from 1.5 to 3 m; d2 < 20h2, where h2 is the height of the sand trap, with a value ranging from 20 to 100 cm; and d3 ranges from 10 to 100 m. The width of the sand trap is L1, the width of the first sand-fixing grid in the sand trap is L2, the inclination angle of the inclined ramp of the sand trap is α, and the width of the suspended sand-fixing component is L3. The value range of L1 is 4 to 7 m, the value range of L2 is 2 to 5 m, the value range of α is 15 to 40 degrees, and the value range of L3 is 5 to 20 m.

[0017] In some more specific implementations, the suspended windbreak includes a support mechanism and a windbreak body, the windbreak body being mounted on the support mechanism and capable of pendulum-like swinging. The windbreak body may be, but is not limited to, a hanging curtain.

[0018] In some more specific implementations, the support mechanism includes at least a crossbar and a vertical support assembly. The crossbar is fixed between two vertical supports, and the windbreak body is mounted on the crossbar. Preferably, the crossbar may be provided with, but is not limited to, a hinge for hinged to the windbreak body to allow it to swing in a pendulum-like manner.

[0019] Preferably, the support mechanism further includes a fixing rod and a diagonal steel wire rope for fixing the vertical support to the ground surface.

[0020] Preferably, the swing angle of the windbreak body is in the range of 0 to 40 degrees, the windbreak body has a porous structure, and the permeability of the windbreak body is 20% to 40%.

[0021] In some more specific implementations, the suspended windbreak also includes multiple first attachment mechanisms, which are interwoven to form the main body of the windbreak.

[0022] Specifically, the first attachment mechanism can be understood as branches inserted into the main body of the windbreak. The main body of the windbreak is woven from branches, with a permeability of 20%–40%, a height range of 1.5–2.5m, and a width range of 1.5–2.5m. The branches used to weave the main body of the windbreak are branches of shrubs such as sand willow, tamarisk, caragana, and tamarisk, with a diameter range of 0.5–3cm and a length of 0.5–3m. The branches used for cutting can be branches of trees, shrubs, or herbs. Among them, the plant branches can be trees, such as jujube, poplar, and pine; or shrubs, such as artemisia, thorn, camel thorn, saxaul, and juniper; or herbs, such as suga and sand rice. The branches used for cutting can be leafy plant branches or whole plants.

[0023] In some more specific implementation schemes, the suspended sand-fixing component includes a second sand-fixing grid and a second support mechanism. The second support mechanism is used to support the second sand-fixing grid to maintain a third distance from the ground surface. The second sand-fixing grid and the ground surface form a sand accumulation chamber. A second limiting member is provided on the second support mechanism. The second sand-fixing grid is horizontally positioned above the second limiting member. When the sand accumulation surface in the sand accumulation chamber and the second sand-fixing grid reach a fourth distance, the second limiting member moves vertically on the second support mechanism in a direction away from the ground surface. The third distance ranges from 20 to 50 cm, and the fourth distance ranges from 5 to 10 cm.

[0024] Specifically, when the sand accumulation reaches 15-40cm (i.e., the third distance minus the fourth distance), the height of the second sand-fixing grid needs to be increased. The suspended sand-fixing component is designed with open sides to capture drifting sand missed by upwind measures, achieving a "no sand in, no out" effect. Because the second sand-fixing grid is wider, it has the largest sand-fixing capacity, making it the last and most reliable line of defense in this sand-fixing system.

[0025] In some more specific implementations, the suspended sand-fixing component further includes multiple third attachment mechanisms, which interweave to form a second sand-fixing grid.

[0026] Specifically, the third attachment mechanism can be understood as branches inserted into the second sand-fixing grid. The second sand-fixing grid is woven from branches, with a permeability of 40%–60%, a length range depending on the length of the protected object, and a width range of 5–20 m. The branches used to weave the second sand-fixing grid are branches of shrubs such as sand willow, tamarisk, caragana, and tamarisk, with a diameter range of 0.5–3 cm and a length of 0.5–3 m. The branches inserted into the second sand-fixing grid can be branches of trees, shrubs, or herbs. Among them, the plant branches can be trees, such as jujube, poplar, and pine; or shrubs, such as artemisia, thorn, camel thorn, saxaul, and juniper; or herbs, such as suga and sand rice. The branches used for cutting can be leafy plant branches or whole plants.

[0027] A third aspect of the present invention provides a method for excavation-free sand stabilization in windy areas of the Gobi Desert, the method being implemented based on the aforementioned excavation-free sand stabilization system for windy areas of the Gobi Desert, the sand stabilization method comprising:

[0028] Suspended windbreaks, sand traps, and suspended sand-fixing components are used to block and fix sand and dust that move toward the protected object with the prevailing wind direction.

[0029] Compared with the prior art, the advantages of the present invention include at least the following:

[0030] First, the sand trap provided by this invention guides sand particles from the wind-blown sand flow to the upper part of a first sand-fixing grid via an uphill ramp. The sand then falls through the pores and openings of the suspended first sand-fixing grid and settles in a sand-accumulation chamber to fix the flowing sand. When the sand in the accumulation chamber reaches a certain thickness, the first sand-fixing grid can be raised, thereby increasing the volume of the accumulation chamber and continuously capturing and fixing the flowing sand particles. As artificial shrubs grow on the sand-accumulation surface and the sand surface stabilizes, the sand trap can be removed and transferred to other areas requiring protection, achieving reusability of the sand trap. Because the sand trap is set above the ground surface, eliminating the need for excavation and pouring, the sand-fixing operation does not damage the Gobi Desert surface.

[0031] Secondly, this invention provides a non-excavation sand-fixing system for strong wind areas in the Gobi Desert. The main body of the suspended windbreak can swing in a pendulum-like motion with the wind. When sandstorms impact the main body, it absorbs the energy from the sandstorms and converts it into its own kinetic energy, effectively reducing the impact force of the sandstorms. In addition, the branches inserted on the main body also absorb some wind energy through flexible swaying. On the leeward side, some sand particles will settle due to the weakened wind force. This helps to reduce the wind speed for the sand traps downwind, creating an ideal wind environment and preventing sand particles from directly crossing the sand traps under strong wind conditions.

[0032] Third, the present invention provides a non-excavation sand-fixing system for strong wind areas in the Gobi Desert. The suspended sand-fixing component includes a second sand-fixing grid and a second support mechanism. The function of the second support mechanism is to maintain a certain distance between the second sand-fixing grid and the ground surface, forming a third distance. A sand accumulation area is formed between the second sand-fixing grid and the ground surface. Most of the wind-blown sand flows will enter the bottom of the second sand-fixing grid and be slowed down by the dual frictional resistance from the second sand-fixing grid and the ground surface, thus causing the flowing sand to settle. In addition, a small amount of sand carried by the airflow at the top will also lose energy due to the obstruction of the second sand-fixing grid and the branches inserted on the grid, which will cause the sand particles to fall into the sand accumulation area. Once the sand particles enter the sand accumulation area, they will be effectively fixed and not easily blown away again, thus achieving a good sand-fixing effect.

[0033] Fourth, the present invention provides a non-excavation sand fixation system for strong wind areas in the Gobi Desert. The sand trap and suspended sand fixation components can provide shade, wind protection and moisture retention for the plants at the bottom, promote rapid plant growth, and their enclosed space can also efficiently capture seed rain in the airflow, enrich the seed bank in the sand layer at the bottom of the grid, and increase the biodiversity of plants. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of a non-excavation sand stabilization system for strong wind areas in the Gobi Desert, provided by an embodiment of the present invention.

[0035] Figure 2 This is a schematic diagram of a suspended windbreak provided in an embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the structure of a sand trap provided in an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the structure of a suspended sand-fixing component provided in an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of a branch-woven grid provided in an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Suspended windbreak; 11. Triangular support; 111. Crossbar; 112. Hinge; 12. Curtain; 121. First attachment mechanism; 13. Inclined steel wire rope; 14. Fixing rod; 2. Sand trap; 21. First sand-fixing grid; 211. Second attachment mechanism; 212. Opening; 22. Inclined ramp; 23. First support mechanism; 24. First limiting rubber gasket; 3. Suspended sand-fixing component; 31. Second sand-fixing grid; 32. Second support mechanism; 33. Second limiting rubber gasket; 34. Third attachment mechanism; 4. Gobi surface; 5. Protected object; 6. Main wind direction; 7. Sand accumulation surface; 8. Living plants. Detailed Implementation

[0041] In view of the shortcomings of the prior art, the inventors of this invention, through long-term research and extensive practice, have proposed the technical solution of this invention. The following will further explain and illustrate this technical solution, its implementation process, and its principles.

[0042] Please refer to Figure 1 This embodiment provides a non-excavation sand stabilization system for strong wind areas in the Gobi Desert, including a suspended windbreak 1, a sand trap 2, and a suspended sand stabilization component arranged sequentially along the prevailing wind direction. The suspended windbreak 1, sand trap 2, and suspended sand stabilization component are arranged sequentially in the upwind direction or surrounding area of ​​the protected object 5, and the resulting strip-shaped area is parallel to each other and perpendicular to the prevailing wind direction 6.

[0043] The distance between the suspended windbreak 1 and the sand trap 2 is d1, the distance between the sand trap 2 and the suspended sand-fixing component is d2, and the distance between the suspended sand-fixing component and the protected object is d3. d1 < 20h1, where h1 is the height of the suspended windbreak, ranging from 1.5 to 3m; d2 < 20h2, where h2 is the height of the sand trap, ranging from 20 to 100cm; and d3 ranges from 10 to 100m. The width of the sand trap is L1, the width of the sand-fixing grid within the sand trap is L2, the inclination angle of the inclined ramp of the sand trap is α, and the width of the suspended sand-fixing component is L3. L1 ranges from 4 to 7m, L2 ranges from 2 to 5m, α ranges from 15 to 40 degrees, and L3 ranges from 5 to 20m.

[0044] In this implementation plan, based on the general rule that the windbreak protection distance on the leeward side of a high-rise sand barrier is 20 times the barrier height, the height of the suspended windbreak 1 is set to h1, where d1 < 20h1. This allows the suspended windbreak 1 to block wind and sand, and creates weak wind conditions for the leeward, excavation-free sand trap 2. The above spacing ensures that the main wind-blown sand flow is captured and fixed by the excavation-free sand trap 2, and the remaining uninterrupted wind-blown sand flow is captured and fixed by the leeward suspended sand-fixing component 3, suitable for windy Gobi environments. Additionally, planting sand-loving shrubs on the sand accumulation surface and covering the patchy, damaged Gobi surface 4 with clay gravel slurry prevents the lower layer of sand from being exposed to the surface, preventing wind erosion and preventing sand accumulation. All these components together constitute an undisturbed wind and sand protection system for windy Gobi areas, possessing multiple functions of wind and sand protection and Gobi surface protection.

[0045] Please refer to Figure 2 The suspended windbreak 1 includes a support mechanism and a hanging curtain 12. The support mechanism includes at least a crossbar 111, a triangular support group, a fixing rod 14, and a diagonal steel wire rope 13.

[0046] Specifically, the triangular support assembly includes at least two triangular supports 11. Each triangular support 11 is welded from steel pipes or angle iron. The crossbar 111 is made of square steel or angle iron and can be fixed between the two triangular supports 11 with screws, connecting them into a single unit. A diagonal steel wire rope 13 is connected to the crossbar 111, pulled down from both sides of the crossbar 111, and fixed to the ground surface by fixing pins 14. The crossbar 111 is also equipped with hinges 112, which are used to hinge the hanging curtain 12 to the crossbar 111, allowing it to swing in a pendulum-like motion, which can weaken wind and sand and promote sand sedimentation.

[0047] The swing angle range of the curtain 12 is 0 to 40 degrees, the curtain 12 has a porous structure, and the permeability of the curtain 12 is 20% to 40%.

[0048] To further reduce wind and sand, the suspended windbreak 1 also includes multiple first attachment mechanisms 121, which interweave to form the hanging curtain 12. Specifically, the first attachment mechanism 121 can be understood as branches inserted into the hanging curtain 12. The hanging curtain 12 itself is a rectangular board woven from branches in a warp and weft pattern. Additionally, branches are inserted into the openings of the hanging curtain 12. The hanging curtain 12 has a permeability of 20%–40%, a height range of 1.5–2.5m, a width range of 1.5–2.5m, a branch diameter range of 0.5–3cm, and a branch length range of 0.5–3m.

[0049] In this embodiment, by nailing the fixing rod 14 in and properly installing the inclined steel wire rope 13, the triangular bracket 11 can be firmly fixed to the ground surface, effectively reducing damage to the Gobi Desert surface. The suspended curtain 12 and the branches inserted on it can sway with the wind. When the wind and sand flow impacts the curtain 12, it absorbs the energy of the wind and sand flow and converts it into its own kinetic energy, thereby reducing the intensity of the wind and sand flow and causing some sand particles to settle on the leeward side. The suspended windbreak 1, as a downwind sand trap 2, can weaken wind energy and create suitable wind conditions, preventing sand particles from directly flying over the sand trap 2 under strong wind conditions.

[0050] Please refer to Figure 3 The sand trap 2 includes a first sand-fixing grid 21 and a first support mechanism 23.

[0051] Specifically, inclined ramps 22 are installed upwind and downwind of the first sand-fixing grid 21, respectively, to allow sand particles in the wind-blown sand flow to be transported to the upper part of the first sand-fixing grid 21 via the upwind ramps, and then fall into the trapezoidal sand accumulation chamber formed by the upwind and downwind ramps and the first sand-fixing grid 21 through the gaps and openings 212 of the suspended first sand-fixing grid 21. Both the upwind and downwind ramps are connected to the first sand-fixing grid 21 on one side by wire binding, and fixed to the ground surface on the other side by fixing stakes 14. The angle between the upwind ramp and the ground surface is 15–40 degrees, and the angle between the downwind ramp and the ground surface is 15–40 degrees. Both the upwind and downwind ramps are made of plant fiber foamed cement board, with a thickness of 3–5 cm, a length of 1–2 m, and a width of 1–2 m.

[0052] Specifically, the first support mechanism 23 includes multiple columns arranged in a rectangular array. Each column is fitted with a first limiting rubber washer 24, positioned 20-100cm above the ground surface. A first sand-fixing grid 21 is horizontally inserted and fixed above the first limiting rubber washer 24 on each column, maintaining a distance of 20-100cm from the ground surface. The columns are round steel pipes with an outer diameter of 1-3cm. The spacing between the columns is 1-2m, the height of each column is 1-1.5m, the burial depth is 0.5m, and the height above the ground surface is 0.5-1m.

[0053] When the sand accumulation layer in the sand accumulation chamber reaches a thickness of approximately 5-10 cm, drought-resistant shrubs and grasses are manually sown on the sand surface to stabilize the bottom sand with living plants 8. When the top of the sand accumulation layer 7 in the sand accumulation chamber approaches the bottom of the first sand-fixing grid 21 by approximately 5-10 cm, the first sand-fixing grid 21 can be manually lifted to increase the height of the sand accumulation chamber, thus preventing the sand trap 2 from being buried by sand and enabling continuous sand fixation. In this scheme, the sand trap 2 adopts a suspended and liftable design, possessing an adjustable and large sand storage capacity, and can effectively intercept and fix windblown sand for a long period of time.

[0054] To further capture sand, the sand trap 2 also includes a plurality of second attachment mechanisms 211, which interweave to form a first sand-fixing grid 21.

[0055] like Figure 5 Specifically, the second attachment mechanism 211 can be understood as branches. The first sand-fixing grid 21 is a rectangular plate woven from branches in a warp and weft pattern. Additionally, branches can be inserted into the pores of the first sand-fixing grid 21. The permeability of the first sand-fixing grid 21 is 30%–50%, the length range depends on the length of the protected object, and the width ranges from 2 to 5 meters. The diameter of the branches ranges from 0.5 to 3 centimeters, and the length ranges from 0.5 to 3 meters. The branches used for insertion can be branches of trees, shrubs, or herbs. These branches can be trees, such as jujube, poplar, and pine; shrubs, such as Artemisia, Nitraria, Camelthorn, Haloxylon, and Juniperus; or herbs, such as Suaeda and Salix matsudana. The branches used for insertion can be leafy branches or whole plants. The first sand-fixing grid 21 uses plant branches as its main raw material, ensuring its environmental friendliness and pollution-free nature. There are no strict requirements on the type, diameter, or length of plant branches; they can be flexibly mixed and woven into grid panels with the required permeability and diverse structures, making the acquisition of materials more convenient.

[0056] In this technical solution, sand particles in the wind-blown sand flow are guided to the upper part of the first sand-fixing grid 21 via an uphill ramp. They then fall through the pores and openings 212 of the suspended first sand-fixing grid 21 into the sand accumulation chamber to fix the wind-blown sand. Furthermore, the upper part of the first sand-fixing grid 21 can efficiently capture seed rain in the airflow, thereby enriching the seed bank within the sand layer at the bottom of the grid and increasing plant biodiversity. When the sand accumulation chamber reaches a certain thickness, the volume of the sand accumulation chamber can be increased by raising the first sand-fixing grid 21, continuing to capture and fix the shifting sand. As the plants grow and the sand surface stabilizes, the sand trap 2 can be removed and moved to other areas requiring protection, making the sand trap 2 reusable. Since the installation of the sand trap 2 does not require excavation or pouring, the sand-fixing operation of this solution will not damage the Gobi Desert surface.

[0057] Please refer to Figure 4 The suspended sand-fixing component 3 includes a second sand-fixing grid and a second support mechanism 32.

[0058] Specifically, the second support mechanism 32 includes multiple columns arranged in a rectangular array. A second limiting rubber washer 33 is installed on each column, positioned 20-50 cm above the ground surface. A second sand-fixing grid is horizontally inserted and fixed above the second limiting rubber washer 33, maintaining a 20-50 cm distance between the second sand-fixing grid 31 and the ground surface. A sand accumulation zone is formed between the second sand-fixing grid 31 and the ground surface. The columns are round steel pipes with an outer diameter of 1-3 cm. The spacing between the columns is 1-2 m, the height of each column is 1-1.5 m, the burial depth is 0.5 m, and the height above the ground surface is 0.5-1 m. When the top of the sand accumulation surface in the sand accumulation zone approaches the bottom of the second sand-fixing grid 31 by approximately 5-10 cm, the second sand-fixing grid 31 can be manually lifted to increase the height of the sand accumulation zone and continue sand fixation.

[0059] To further capture windblown sand, the suspended sand-fixing component 3 also includes multiple third attachment mechanisms 34, which interweave to form a second sand-fixing grid. Specifically, the third attachment mechanism 34 can be understood as branches inserted into the second sand-fixing grid. The second sand-fixing grid is woven from branches, with a permeability of 40% to 60%, a length range depending on the length of the protected object, and a width range of 5 to 20 meters. The branches used to weave the second sand-fixing grid are branches of shrubs such as sand willow, tamarisk, caragana, and tamarisk, with a diameter range of 0.5 to 3 cm and a length of 0.5 to 3 meters.

[0060] In this technical solution, the suspended design creates a sand accumulation zone at the bottom of the second sand-fixing grid 31 for storing shifting sand. When airflow carrying sand particles enters the bottom of the second sand-fixing grid 31, it encounters dual frictional resistance from both the grid and the ground surface, slowing its speed and promoting sand deposition. Simultaneously, the airflow at the top is blocked by plant branches, further reducing energy and causing sand particles to fall into the accumulation zone. Once sand particles are inside, they are difficult to remove, thus enhancing the sand-fixing effect. Planting vegetation within the accumulation zone provides shade, wind protection, and moisture retention at the bottom of the second sand-fixing grid 31, promoting rapid plant growth. A second limiting rubber gasket 33 is installed on the support column; when the accumulated sand reaches a certain thickness, this gasket can be adjusted to prevent the suspended sand-fixing component 3 from being buried by sand. Once the plants in the accumulation zone effectively fix the sand, the suspended sand-fixing component 3 can be moved to other areas requiring protection, allowing for reuse.

[0061] A non-excavation sand stabilization method for use in windy areas of the Gobi Desert, the method being implemented based on the aforementioned non-excavation sand stabilization system for windy areas of the Gobi Desert, and the sand stabilization method comprising:

[0062] Suspended windbreaks, sand traps, and suspended sand-fixing components are installed sequentially along the prevailing wind direction.

[0063] Suspended windbreaks, sand traps, and suspended sand-fixing components are used to block and fix sand and dust that move toward the protected object with the prevailing wind direction.

[0064] Among them, the suspended windbreaks, sand traps, and suspended sand-fixing components are located upwind or in the surrounding area of ​​the protected object, and the strip-shaped areas formed by the suspended windbreaks, sand traps, and suspended sand-fixing components are parallel to each other and perpendicular to the prevailing wind direction.

[0065] The distance between the suspended windbreak and the sand trap is d1, the distance between the sand trap and the suspended sand-fixing component is d2, and the distance between the suspended sand-fixing component and the protected object is d3. d1 < 20h1, where h1 is the height of the suspended windbreak, ranging from 1.5 to 3 meters; d2 < 20h2, where h2 is the height of the sand trap, ranging from 20 to 100 centimeters; and d3 ranges from 10 to 100 meters. The width of the sand trap is L1, the width of the sand-fixing grid within the sand trap is L2, the inclination angle of the inclined ramp of the sand trap is α, and the width of the suspended sand-fixing component is L3. L1 ranges from 4 to 7 meters, L2 ranges from 2 to 5 meters, α ranges from 15 to 40 degrees, and L3 ranges from 5 to 20 meters.

[0066] In some embodiments, the sand-fixing method further includes planting psammophytic plants at the bottom of the sand-trapping trap or suspended sand-fixing component to stabilize the sand accumulated at the bottom. The bottom of the sand-trapping trap or suspended sand-fixing component includes a sand-accumulation chamber.

[0067] As vegetation grows and the sand surface stabilizes, sand traps and suspended sand-fixing components can be removed and moved to other areas requiring protection, enabling their reuse. Since the installation of sand traps and suspended sand-fixing components does not require excavation or pouring, the sand-fixing operation will not damage the Gobi Desert surface.

[0068] In addition, the sand traps and suspended sand-fixing components can provide shade, wind protection, and moisture retention for the sand-loving plants at the bottom, promoting rapid plant growth. Their enclosed space can also efficiently capture seed rain in the airflow, enriching the seed bank in the sand layer at the bottom of the grid and increasing plant biodiversity.

[0069] In some implementations, the sand-fixing method further includes covering the sand-accumulated surface and the Gobi surface with a slurry. The slurry includes, but is not limited to, clay-gravel slurry. Specifically, clay or red clay is softened by soaking in water and then mixed with 50%–70% pebbles or gravel as aggregate to form a paste, which is then applied to cover the sand-accumulated surface and the damaged Gobi surface. The coating thickness is 10–5 cm, which helps prevent wind erosion. The materials used in this method are readily available, and the construction process is simple and quick. It can form a solid, hardened layer at a specific depth on the Gobi surface, effectively protecting the Gobi from wind erosion, trampling, and crushing damage. This method can significantly prevent wind erosion and sand lifting, thereby reducing the risk of downstream protected objects being buried by sand. Furthermore, it not only protects the sand-accumulated surface from wind erosion but also provides moisture retention for plants, thus promoting plant growth.

[0070] In some implementations, the sand-fixing method further includes: subjecting the suspended windbreak, sand trap, and suspended sand-fixing component to asphalt soaking or surface carbonization treatment to improve strength and service life.

[0071] It should be understood that the above embodiments are merely illustrative of the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A non-excavation sand stabilization system for use in windy areas of the Gobi Desert, characterized in that, This includes suspended windbreaks, sand traps, and suspended sand-fixing components, arranged sequentially along multiple strips along the prevailing wind direction. The sand trap includes a top surface, a first side surface, and a second side surface. The top surface is provided with a first sand-fixing grid. The first side surface and the second side surface are arranged sequentially on both sides of the first sand-fixing grid along the prevailing wind direction. The first sand-fixing grid, the first side surface, and the second side surface form a trapezoidal sand accumulation chamber with the ground surface. The angle between the first side surface and the ground surface ranges from 15 degrees to 40 degrees, and the angle between the second side surface and the ground surface also ranges from 15 degrees to 40 degrees. The sand trap also includes a first support mechanism. The first support mechanism is used to support the first sand-fixing grid to maintain a first distance from the ground surface. A first limiting member is provided on the first support mechanism. The first sand-fixing grid is arranged horizontally above the first limiting member. When the sand accumulation surface in the sand accumulation chamber reaches a second distance from the first sand-fixing grid, the first limiting member moves vertically on the first support mechanism in a direction away from the ground surface. The suspended windbreak includes a support mechanism and a windbreak body. The windbreak body is mounted on the support mechanism and can swing in a pendulum-like manner. The suspended sand-fixing component includes a second sand-fixing grid and a second support mechanism. The second support mechanism is used to support the second sand-fixing grid to maintain a third distance from the ground surface. The second sand-fixing grid and the ground surface form a sand accumulation chamber. A second limiting member is provided on the second support mechanism. The second sand-fixing grid is horizontally positioned above the second limiting member. When the sand accumulation surface in the sand accumulation chamber and the second sand-fixing grid reach a fourth distance, the second limiting member moves vertically on the second support mechanism in a direction away from the ground surface. The third distance ranges from 20 cm to 50 cm, and the fourth distance ranges from 5 cm to 10 cm. Wherein, the distance between the suspended windbreak and the sand trap is d1, the distance between the sand trap and the suspended sand-fixing component is d2, the distance between the suspended sand-fixing component and the protected object is d3, d1<20h1, h1 is the height of the suspended windbreak, and the value of h1 ranges from 1.5 m to 3 m, d2<20h2, h2 is the height of the sand trap, and the value of h2 ranges from 20 cm to 100 cm, d3 ranges from 10 m to 100 m, the width of the sand trap is L1, the width of the first sand-fixing grid in the sand trap is L2, the width of the suspended sand-fixing component is L3, the value of L1 ranges from 4 m to 7 m, the value of L2 ranges from 2 m to 5 m, and the value of L3 ranges from 5 m to 20 m.

2. The excavation-free sand stabilization system for strong wind areas in the Gobi Desert according to claim 1, characterized in that, The sand trap also includes multiple second attachment mechanisms, which are disposed on the first sand-fixing grid.

3. The excavation-free sand stabilization system for strong wind areas in the Gobi Desert according to claim 1, characterized in that, The first support mechanism includes multiple columns arranged in a rectangular array and passing through the top surface to support the first sand-fixing grid. The first limiting member is disposed on the columns. The spacing between the columns is 1 m to 2 m, and the height of the columns is 1 m to 1.5 m.

4. The excavation-free sand stabilization system for strong wind areas in the Gobi Desert according to claim 3, characterized in that, The first distance ranges from 20 cm to 100 cm, and the second distance ranges from 5 cm to 10 cm.

5. The excavation-free sand stabilization system for strong wind areas in the Gobi Desert according to claim 1, characterized in that, The support mechanism includes at least a horizontal bar and two vertical support groups. The horizontal bar is fixed between two vertical support groups, and the windbreak body is mounted on the horizontal bar.

6. The excavation-free sand stabilization system for strong wind areas in the Gobi Desert according to claim 5, characterized in that, The swing angle range of the main body of the windbreak is 0 degrees to 40 degrees.

7. The excavation-free sand stabilization system for strong wind areas in the Gobi Desert according to claim 5, characterized in that, The windbreak body has a porous structure with a permeability of 20% to 40%.

8. A method for non-excavation sand stabilization in windy areas of the Gobi Desert, characterized in that, The excavation-free sand stabilization method is implemented based on the excavation-free sand stabilization system for strong wind areas in the Gobi Desert as described in any one of claims 1-7, and the excavation-free sand stabilization method includes: Suspended windbreaks, sand traps, and suspended sand-fixing components are used to block and fix sand and dust that move toward the protected object with the prevailing wind direction.

9. The method for non-excavation sand stabilization in windy areas of the Gobi Desert according to claim 8, characterized in that, Planting sand-fixing plants at the bottom of sand traps and suspended sand-fixing components helps to stabilize the accumulated sand at the bottom.

Images