Rainwater-collecting greening slope protection structure for loess slope

Abstract

The utility model discloses a loess slope rainwater collection greening slope protection structure, and relates to the technical field of slope greening, the loess slope rainwater collection greening slope protection structure is characterized in that a plurality of ridges are arranged on a slope surface at equal intervals, fish-scale pits are formed in the slope surface among the plurality of ridges, protection mechanisms are arranged at the front parts of the plurality of ridges, the protection structures comprise supporting pieces, and the supporting pieces are inserted in the front sides of the ridges; a straw mat is arranged on the front side of the supporting piece, the supporting piece is partially inserted into the outer side of the straw mat and used for fixing the straw mat, the multiple earth ridges are arranged on the slope surface, silt in rainy days is intercepted layer by layer through the earth ridges, the multiple fish-scale pits are formed in the slope surface between the multiple earth ridges, and the rhombic nets are laid on the tops of the fish-scale pits; sediment is blocked through cooperation of the fish-scale pits and the rhombic nets, the rhombic nets disperse runoff impact force, the flow guide ripples reduce the flow speed, and the sediment interception rate is remarkably increased.

Description

Technical Field

[0001] This utility model relates to the field of slope greening technology, and in particular to a rainwater harvesting and greening slope protection structure for loess slopes. Background Technology

[0002] As one of the most ecologically sensitive zones globally prone to soil erosion, the Loess Hilly Region experiences a profound exacerbation of soil erosion risks due to the unique coupling effect of its geological structure and climatic conditions. The Quaternary aeolian loess widely distributed in the region, due to its well-developed vertical fissures and loose, porous structure, forms a fragile matrix with low shear strength, easily disintegrating upon contact with water. Under combined gravity and hydraulic erosion, it exhibits significant disintegration and sliding characteristics. Long-term weathering processes have shaped a barren soil environment, characterized by extreme lack of organic matter, loose aggregate structure, and weak water-holding capacity, significantly weakening the soil's resistance to erosion. Coupled with the influence of a typical continental monsoon climate, highly concentrated seasonal rainfall and frequent short-duration torrential downpours lead to a dynamic imbalance in the soil-water system, inducing intense surface runoff and layered erosion processes, resulting in an ultra-high-intensity erosion pattern dominated by sheet erosion and gully erosion. Of particular concern is that continuous water erosion, by stripping away surface fine-grained material, exacerbates soil sandification and the degradation of water storage capacity, causing vegetation restoration to fall into a chain reaction dilemma of "erosion energy consumption - soil fertility decline - ecological stagnation".

[0003] While the current engineering governance system has achieved phased results through terracing and sand-blocking water storage projects, it is still limited by the engineering geological characteristics of loess foundation softening and collapsing when exposed to water, as well as the ecological threshold constraint of vegetation community water carrying capacity under drought stress. Traditional governance models still have systemic shortcomings in dealing with sudden heavy rainfall, and there is an urgent need to build a comprehensive governance paradigm that combines water and soil process feedback regulation with the enhancement of ecological engineering resilience.

[0004] Therefore, it is necessary to provide rainwater harvesting and greening slope protection structures for loess slopes to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a rainwater harvesting and greening slope protection structure for loess slopes, so as to solve the problems of the prior art mentioned in the background art.

[0006] Based on the above ideas, this utility model provides the following technical solution: a rainwater harvesting and greening slope protection structure for loess slopes, including multiple earthen ridges set on the slope surface, the multiple earthen ridges being set at equal intervals, fish-scale pits being opened on the slope surface between the multiple earthen ridges, and a protective mechanism being set at the front of the multiple earthen ridges. The protective structure includes a support member, which is inserted into the front side of the earthen ridge, and a straw curtain is set on the front side of the support member, with part of the support member inserted into the outside of the straw curtain for fixing the straw curtain. A diamond-shaped mesh is set between the multiple earthen ridges, and the diamond-shaped mesh is laid on the top of the fish-scale pits. A rainwater harvesting component is set on the top of the slope for collecting rainwater.

[0007] As a further embodiment of this utility model: the support member includes a plurality of first wooden stakes and a plurality of second wooden stakes. The plurality of first wooden stakes are inserted into the slope, and the height of the first wooden stakes is kept horizontal with the adjacent earthen embankment. The plurality of second wooden stakes are evenly arranged between the first wooden stakes, and the second wooden stakes pass through the straw curtain and are inserted into the slope surface for fixing the straw curtain.

[0008] As a further embodiment of this utility model: the root of the straw mat is inserted into the bottom of the soil, the end of the straw mat is folded over to cover the outside of the support member, and the end of the straw mat is inserted into the top of the soil embankment.

[0009] As a further embodiment of this utility model: the rain collection component includes a water storage pit, which is located at the top of the slope, and a conveying pipe is installed inside the water storage pit. The conveying pipe passes through the soil ridge in sequence, and multiple branch pipes are fixedly connected to the outside of the conveying pipe. The multiple branch pipes have flow holes on their outer sides for irrigating multiple fish-scale pits.

[0010] As a further embodiment of this utility model, a drainage channel is provided at the bottom of the slope for guiding rainwater.

[0011] As a further embodiment of this utility model: the second wooden stake is higher than the first wooden stake, and the upper and lower ends of the rhomboid net are respectively fixedly connected to a plurality of second wooden stakes.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By setting up multiple earthen ridges on the slope, the soil and sand are intercepted layer by layer during rain. Multiple fish-scale pits are set up on the slope between the earthen ridges, and diamond mesh is laid on the top of the fish-scale pits. The combination of fish-scale pits and diamond mesh blocks the soil and sand. The diamond mesh disperses the runoff impact force, and the guiding ripples reduce the flow velocity, thus significantly improving the soil and sand interception rate.

[0014] 2. The base of the straw mat is inserted into the soil at the bottom, forming an "underground anchoring layer." The friction between the straw mat fibers and soil particles transfers the impact of surface runoff to the deeper soil layers. The upper end of the straw mat is folded back to cover the top of the embankment, essentially putting a "flexible shackle" on the embankment to prevent cracks or collapses caused by water erosion at the top of the embankment. This multi-layered protective measure, through the synergistic effect of the support components, straw mat, and embankment, can form a multi-layered soil and water conservation barrier. Its core advantages are reflected in enhanced structural stability, optimized runoff interception, upgraded erosion protection, and promoted ecological restoration.

[0015] 3. During rainfall, rainwater is stored. When drought occurs or vegetation lacks water, the valve on the outside of the delivery pipe is opened to allow water from the storage pit to flow through the delivery pipe and multiple branch pipes to evenly irrigate the vegetation inside the fish scale pit. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the first and second wooden piles of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0020] Figure 4 This is a utility model Figure 3 A magnified structural diagram of part A.

[0021] In the diagram: 1. Earthen embankment; 2. Support component; 201. First wooden stake; 202. Second wooden stake; 3. Fish scale pit; 4. Straw curtain; 401. Bottom of straw curtain; 402. Top of straw curtain; 5. Water storage pit; 6. Conveying pipe; 8. Branch pipe; 9. Diamond mesh; 10. Drainage ditch. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 4 As shown, the loess slope rainwater harvesting and greening slope protection structure includes the following embodiments:

[0024] Example 1: The slope is provided with multiple earthen ridges 1, which are equally spaced. Fish-scale pits 3 are opened on the slope between the earthen ridges 1. A protective structure is provided at the front of each earthen ridge 1. The protective structure includes a support member 2, which is inserted into the front side of the earthen ridge 1. A straw curtain 4 is provided in front of the support member 2, and part of the support member 2 is inserted into the outside of the straw curtain 4 for fixing the straw curtain 4. A diamond-shaped net 9 is provided between the earthen ridges 1. The diamond-shaped net 9 is laid on the top of the fish-scale pits 3. A rain collection component is provided at the top of the slope for collecting rainwater.

[0025] In specific implementation, multiple earthen ridges 1 are set up on the slope to intercept mud and sand layer by layer during rain. Multiple fish-scale pits 3 are set up on the slope between the multiple earthen ridges 1. Diamond mesh 9 is laid on the top of the fish-scale pits 3. The combination of fish-scale pits 3 and diamond mesh 9 blocks mud and sand. Diamond mesh 9 disperses the runoff impact force, and the flow ripples reduce the flow velocity, significantly improving the mud and sand interception rate. At the same time, slow-release water-retaining agent capsules containing super absorbent resin and drought-resistant plant seeds such as Caragana korshinskii and Hippophae rhamnoides are pre-embedded in the fish-scale pits 3. The bottom of the pit is covered with a layer of crushed stone to enhance infiltration.

[0026] It is worth noting that the diamond mesh 9 is woven from biodegradable polylactic acid (PLA), filled with straw-bentonite composite material, and has flow-guiding corrugations and micro-permeability holes on its surface. By fixing it to the slope, it achieves runoff dispersion and sediment tiered deposition.

[0027] Example 2: The support member 2 includes multiple first wooden stakes 201 and multiple second wooden stakes 202. The multiple first wooden stakes 201 are inserted into the slope, and the height of the first wooden stakes 201 and the adjacent earthen embankment 1 are kept horizontal. The multiple second wooden stakes 202 are evenly arranged between the first wooden stakes 201, and the second wooden stakes 202 pass through the straw curtain 4 and are inserted into the slope surface to fix the straw curtain 4.

[0028] The root of the straw mat 401 is inserted into the bottom of the soil, and the end of the straw mat 402 is folded over to cover the outside of the support member 2, and the end of the straw mat 402 is inserted into the top of the soil ridge 1.

[0029] The second wooden stake 202 is higher than the first wooden stake 201, and the upper and lower ends of the rhombus mesh 9 are fixedly connected to multiple second wooden stakes 202 respectively.

[0030] In specific implementation, earthen embankments 1 are laid along contour lines. First wooden stakes 201 are inserted into the front of the earthen embankment 1. A wide straw mat 4 is covered in front of the first wooden stakes 201, with the roots 401 of the straw mat 4 inserted into the soil. The ends 402 of the straw mat 4 are folded back and pressed against the top of the earthen embankment 1 to prevent overflow and erosion. Finally, second wooden stakes 202 are inserted between the first wooden stakes 201, fixing the straw mat 4 in place. This forms a barrier at the front of the earthen embankment 1. The roots 401 of the straw mat 4 are inserted into the soil, forming an "underground anchoring layer." The friction between the straw curtain 4 fibers and soil particles transmits the impact of surface runoff to the deep soil. The upper straw curtain end 402 folds back and covers the top of the embankment, which is equivalent to putting a "flexible shackle" on the embankment 1, preventing cracks or collapses on the top of the embankment 1 caused by water erosion. By adopting this multi-layered protective measure, through the synergistic effect of the support 2, straw curtain 4 and embankment 1, a multi-layered water and soil conservation barrier can be formed. Its core advantages are reflected in the strengthening of structural stability, optimization of runoff interception, upgrading of erosion protection, and promotion of ecological restoration.

[0031] Physical protection: Support component 2 forms a rigid framework, while straw mat 4 provides flexible coverage. The combination of rigidity and flexibility can resist the erosion of water flows of varying intensities. For example, at the beginning of a rainstorm, straw mat 4 intercepts sediment, reducing suspended matter content; during continuous rainfall, support component 2 supports the structure to prevent soil sliding.

[0032] Biological protection: The straw curtain 4 can be made of biodegradable materials such as straw and coconut fiber. After decomposition, it will be converted into soil organic matter, promote the natural germination of herbaceous plants, and form a double-layer vegetation protection layer of "artificial + natural", which will improve the slope's erosion resistance in the long term.

[0033] Example 3: The rainwater collection component includes a water storage pit 5, which is located at the top of the slope. A conveying pipe 6 is installed inside the water storage pit 5. The conveying pipe 6 passes through the earthen ridge 1 in sequence, and multiple branch pipes 8 are fixedly connected to the outside of the conveying pipe 6. Flow holes are opened on the outside of the multiple branch pipes 8 for irrigating multiple fish scale pits 3.

[0034] A drainage channel 10 is provided at the bottom of the slope to divert rainwater.

[0035] In practice, a water storage pit 5 is opened on the top of the slope to store rainwater when it rains. When drought occurs or the vegetation is short of water, the control valve set on the outside of the delivery pipe 6 is opened to allow the water inside the water storage pit 5 to pass through the delivery pipe 6 and multiple branch pipes 8 to irrigate the vegetation inside the fish scale pit 3 evenly.

[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rainwater harvesting and greening slope protection structure for loess slopes, comprising multiple earthen ridges (1) set on the slope surface, the multiple earthen ridges (1) being set at equal intervals, characterized in that, Fish-scale pits (3) are opened on the slope between multiple earthen ridges (1). A protective structure is set at the front of multiple earthen ridges (1). The protective structure includes a support (2). The support (2) is inserted into the front side of the earthen ridge (1). A straw curtain (4) is set in front of the support (2). The support (2) is partially inserted into the outside of the straw curtain (4) to fix the straw curtain (4). A diamond mesh (9) is set between multiple earthen ridges (1). The diamond mesh (9) is laid on the top of the fish-scale pits (3). A rain collection component is set on the top of the slope to collect rainwater.

2. The loess slope rainwater harvesting and greening slope protection structure according to claim 1, characterized in that: The support member (2) includes a plurality of first wooden stakes (201) and a plurality of second wooden stakes (202). The plurality of first wooden stakes (201) are inserted into the slope and the height of the first wooden stakes (201) is kept horizontal with the adjacent earthen embankment (1). The plurality of second wooden stakes (202) are evenly arranged between the first wooden stakes (201) and the second wooden stakes (202) pass through the straw curtain (4) and are inserted into the slope surface for fixing the straw curtain (4).

3. The loess slope rainwater harvesting and greening slope protection structure according to claim 1, characterized in that: The root (401) of the straw mat (4) is inserted into the bottom of the soil, the end (402) of the straw mat (4) is folded over to cover the outside of the support (2), and the end (402) of the straw mat is inserted into the top of the embankment (1).

4. The loess slope rainwater harvesting and greening slope protection structure according to claim 1, characterized in that: The rain collection component includes a water storage pit (5), which is located at the top of the slope. A conveying pipe (6) is installed inside the water storage pit (5). The conveying pipe (6) passes through the earthen embankment (1) in sequence. Multiple branch pipes (8) are fixedly connected to the outside of the conveying pipe (6). Flow holes are opened on the outside of the multiple branch pipes (8) for irrigating multiple fish scale pits (3).

5. The loess slope rainwater harvesting and greening slope protection structure according to claim 1, characterized in that: A drainage channel (10) is provided at the bottom of the slope for rainwater to be diverted.

6. The loess slope rainwater harvesting and greening slope protection structure according to claim 2, characterized in that: The second wooden stake (202) is higher than the first wooden stake (201), and the upper and lower ends of the rhombus mesh (9) are fixedly connected to multiple second wooden stakes (202) respectively.

Images