Slope structure for water and soil conservation in arid regions
By planting grass grid structures on slopes in arid regions, combined with transverse water collection channels and diversion systems, the problems of unstable foundations and high maintenance costs have been solved, achieving a high survival rate of vegetation and effective utilization of water resources, while reducing slope protection costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LANZHOU SOIL & WATER CONSERVATION SCI TEST STATION OF GANSU PROVINCIAL DEPT OF WATER RESOURCES (GANSU PROVINCIAL INST OF SOIL & WATER CONSERVATION SCI)
- Filing Date
- 2022-12-29
- Publication Date
- 2026-06-30
AI Technical Summary
In arid regions, existing slope protection solutions such as drought-resistant vegetation cover and partition walls cannot effectively solve the problem of unstable foundations, and have high long-term maintenance costs and low vegetation survival rates.
A grass-planted grid structure is adopted, combined with transverse water collection troughs, water diversion and collection components, and slope bottom water troughs to form a water resource recycling and reuse system. By combining vegetation soil stabilization and structure soil stabilization, the survival rate of vegetation is improved and the long-term investment cost is reduced.
This approach achieves long-term maintenance of slope foundation stability and soil and water conservation performance, reduces long-term investment costs for slope protection, and improves vegetation survival rate and irrigation water utilization rate.
Smart Images

Figure CN116065605B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of slope protection construction technology, specifically to a slope structure for soil and water conservation in arid regions. Background Technology
[0002] Perennially arid regions are dominated by sandy and gravelly soils, which have extremely poor water retention in their foundations. Furthermore, the movement of the surface weathering layer during strong winds easily leads to sloping structures. When constructing buildings in such terrain, slope protection is often implemented to safeguard the foundation. Common slope protection solutions include covering with drought-resistant vegetation or reinforcing the foundation of partition walls. The former requires highly specific plant species and, limited by the natural environment, has a low survival rate, necessitating continuous replanting and maintenance, resulting in significant long-term costs. The latter solution fails to fundamentally address the instability of the slope foundation caused by environmental factors, only maintaining slope protection effectiveness in the short term. Therefore, new solutions are needed for slope protection structures that can provide long-term soil stabilization and slope protection while controlling long-term costs. Summary of the Invention
[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a soil and water conservation slope structure for arid regions. This structure employs a basic structure of planted grass grids, while simultaneously incorporating a water recycling and reuse structure. This allows for the effective use of water resources to irrigate and maintain the planted soil-stabilizing vegetation, thereby improving vegetation survival rates and reducing long-term investment costs. Furthermore, the water-collecting structure forms a reinforcing structure in the lower layer of the slope foundation, effectively maintaining the slope's foundation stability. Thus, by combining vegetation-based soil stabilization and structural soil stabilization, the invention ensures both low-cost slope protection and high soil and water conservation performance.
[0004] To achieve the above objectives, the present invention adopts the following technical solutions:
[0005] It contains:
[0006] The transverse water collection troughs consist of several troughs, which are equally spaced and buried within the slope.
[0007] A water guiding and collecting component is disposed on a horizontal water collecting trough;
[0008] A slope bottom water trough is provided at the bottom of the slope, and a transverse water collection trough located at the bottom of the slope is provided above the slope bottom water trough.
[0009] In use, the construction and installation are carried out first. Horizontal trenches are dug along contour lines on the naturally formed slope foundation for the installation of horizontal water collection troughs. Vertical trenches are dug on the slope foundation for the installation of water diversion and collection components. Two adjacent horizontal water collection troughs are connected by these components. At the bottom of the slope, trenches are dug for the installation of the lowest layer of horizontal water collection troughs and the slope bottom water trough. After installation, the trenches are backfilled with soil to complete the installation. Drought-resistant plants are planted between the grids formed by the horizontal water collection troughs and the water diversion and collection components, and watered regularly to maintain plant growth and conserve water and soil. Water is delivered from the top of the slope, allowing it to flow downwards and infiltrate into the soil. Water that has infiltrated to deeper layers is collected in the horizontal water collection troughs. The accumulated water in the horizontal water collection troughs is then transported and collected by the water diversion and collection components, and finally discharged into the slope bottom water trough for unified collection.
[0010] Preferably, the lower side plate of the transverse water collection trough is horizontally arranged, and the upper edge of the side plate facing the bottom of the slope is higher than the upper edge of the side plate facing the top of the slope.
[0011] Preferably, the water diversion and collection assembly comprises:
[0012] The drainage connector is inserted into the plate on the side of the transverse water collection trough facing the bottom of the slope, and the lower inner wall of the drainage connector is flush with the lower inner wall of the transverse water collection trough.
[0013] A connecting pipe, wherein the connecting pipe is inserted and fixed to the side wall of the drain connector;
[0014] A swivel joint is sleeved on a connecting pipe, and the swivel joint is connected to a drain joint through the connecting pipe.
[0015] The drain pipe is inserted and fixed to the side wall of the turning joint;
[0016] During use, when installing the diverter and drain pipe, no drain pipe is installed on one of the transverse water collection troughs above the slope bottom trough. Drain pipes are installed on the remaining transverse water collection troughs. After the drain pipe is installed, it is rotated by the diverter onto the connecting pipe to adjust the pitch angle of the drain pipe. This ensures that the outlet end of the drain pipe is positioned above the adjacent transverse water collection trough below. When water is collected in the transverse water collection trough, it is pumped to the next level transverse water collection trough through the drain joint, connecting pipe, diverter, and drain pipe. Through this step-by-step pumping of water, the water is eventually collected and reused in the slope bottom trough.
[0017] Preferably, a pad is provided in the transverse water collection trough, with the side of the pad facing the bottom of the slope higher than the side of the pad facing the top of the slope, and the two sides of the pad abutting against the two inner side walls of the transverse water collection trough respectively.
[0018] A pad 2 is inserted into the transverse water collection trough located above the slope bottom water trough. The side of the pad 2 facing the bottom of the slope is higher than the side of the pad 2 facing the top of the slope. The lower side of the pad 2 abuts against the inner wall of the transverse water collection trough, and the higher side of the pad 2 extends out of the transverse water collection trough and abuts against the inner wall of the slope bottom water trough.
[0019] During use, after installing the transverse water collection trough and the slope bottom water trough, insert a second pad in the transverse water collection trough located above the slope bottom water trough. When backfilling, cover the second pad with a gravel layer of not less than 100mm. In the remaining transverse water collection troughs, install a first pad. When backfilling, cover the first pad with a gravel layer of not less than 100mm. When the slope foundation is watered, the seepage water passes through the gravel layer and the first and second pads and enters the transverse water collection trough.
[0020] Preferably, the inner wall of the transverse water collection trough is provided with several locking blocks, and the spacing between adjacent locking blocks is equal. An end sealing plate is inserted into the transverse water collection trough, and the side of the end sealing plate is sandwiched between adjacent locking blocks.
[0021] In use, the end sealing plate is used to isolate the horizontal water collection tank, thereby forming an independent working area within the horizontal water collection tank. When actually installing the horizontal water collection tank, the end sealing plate is used to seal the cut-off port of the horizontal water collection tank.
[0022] Preferably, the transverse water collection trough is provided with reinforcing ribs, and the ends of the reinforcing ribs are fixed to the inner sidewall of the transverse water collection trough, and the reinforcing ribs abut against the lower surface of the pad.
[0023] Preferably, a wing plate is clamped on the transverse water collection trough, and a limiting groove is fixedly provided on the lower surface of the wing plate, and the limiting groove is mounted on the upper side of the side plate of the transverse water collection trough facing the top of the slope.
[0024] Compared with the prior art, the beneficial effects of the present invention are:
[0025] 1. Multiple sets of transverse water collection channels are set up, forming multiple transverse cut-off structures at the contour line section of the slope. This allows the irrigation water that flows downwards and seeps in to be collected through the transverse water collection channels during irrigation, preventing the irrigation water from seeping into the deep foundation and wasting water resources. This improves the utilization rate of irrigation water, thereby reducing the cultivation cost of vegetation on the slope and effectively reducing the financial cost of soil and water conservation.
[0026] 2. Install horizontal water collection troughs and vertical connecting pipes to connect the upper and lower horizontal water collection troughs, thereby achieving the gradual discharge and collection of accumulated water. The grid structure formed by the horizontal water collection troughs and connecting pipes facilitates the stabilization of the foundation, strengthens the soil structure of the slope, and is also conducive to the management of vegetation planted on the slope surface. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of the present invention.
[0028] Figure 2 yes Figure 1 The front right view.
[0029] Figure 3 yes Figure 1 Front view.
[0030] Figure 4 yes Figure 1 Top view.
[0031] Figure 5 yes Figure 1 Enlarged view of part A in the image.
[0032] Figure 6 yes Figure 1 Enlarged view of part B in the image.
[0033] Figure 7 yes Figure 3 Enlarged view of section C in the image.
[0034] Explanation of reference numerals in the attached figures:
[0035] 1. Horizontal water collection trough; 2. Water diversion and collection assembly; 2-1. Drainage connector; 2-2. Connecting pipe; 2-3. Turning connector; 2-4. Drainage pipe; 3. Sloping bottom water trough; 4. Pad plate one; 5. Pad plate two; 6. Locking block; 7. End sealing plate; 8. Reinforcing rib; 9. Wing plate; 10. Limiting slot. Detailed Implementation
[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0037] Example:
[0038] like Figure 1-7 As shown, this embodiment includes:
[0039] There are two transverse water collection channels 1, which are arranged along the contour lines of the slope. When arranging the transverse water collection channels 1, the upper end of the transverse water collection channel 1 is about 500mm from the ground surface of the slope.
[0040] The transverse water collection trough 1 has a "J" shaped structure, with its short-height side plate facing the top of the slope and its long-height side plate facing the bottom of the slope.
[0041] The reinforcing rib 8 is welded at one end to the inner wall of the joint between the short-height side plate and the low plate of the transverse water collection trough 1, and at the other end to the inner wall of the long-height side plate of the transverse water collection trough 1. The reinforcing rib 8 is set at a spacing of 600mm. The reinforcing rib 8 is set to strengthen the structural strength between the two side plates of the transverse water collection trough 1 and prevent the expansion deformation of the two side plates of the transverse water collection trough 1.
[0042] The slope bottom water trough 3 is set at the bottom of the slope, and a set of transverse water collection troughs 1 are set at the upper part of the slope bottom water trough 3.
[0043] The slope bottom water trough 3 is a masonry structure. The inner wall of the slope bottom water trough 3 is coated with waterproof mortar. When the slope bottom water trough 3 is being built, one side plate of the slope bottom water trough 3 can be raised to expose the ground to form a retaining wall.
[0044] Pad 4 is provided in the transverse water collection trough 1 and is supported on the reinforcing rib 8.
[0045] Pad 2 5, wherein the pad 2 5 is inserted into the transverse water collection trough 1 located above the slope bottom water trough 3, and the upper side of the pad 2 5 abuts against the side plate of the slope bottom water trough 3.
[0046] The first pad 4 and the second pad 5 are lightweight precast concrete slabs with built-in reinforcing ribs. As a result, the first pad 4 and the second pad 5 can maintain high permeability and have good bending strength. After the transverse water collection trough 1 and the slope bottom water trough 3 are buried in the trench on the slope, the first pad 4 and the second pad 5 are erected and installed. Only the second pad 5 is installed in the transverse water collection trough 1 above the slope bottom water trough 3. Then, when backfilling the soil, a coarse aggregate gravel layer with a thickness of more than 100mm is laid on the first pad 4 and the second pad 25. The gravel layer can then be used for water infiltration and filtration, and the stability of the surface soil is maintained.
[0047] The card blocks 6 are arranged in groups of eight. Among the card blocks 6 in the same group, four are fixedly installed on the lower inner side wall of the horizontal water collection tank 1, and the other four are installed on the left inner side wall of the horizontal water collection tank 1, thereby forming three groove structures between the four card blocks 6.
[0048] End sealing plate 7, the end sealing plate 7 is inserted into the transverse water collection tank 1, and the side of the end sealing plate 7 is sandwiched between two adjacent clamping blocks 6;
[0049] When installing the horizontal water collection trough 1, if the horizontal water collection trough 1 needs to be cut off according to the installation conditions, the horizontal water collection trough 1 is cut off at the middle of the three groove structures formed by the above-mentioned locking block 6. Then, two locking blocks 6 are left on each section of the horizontal water collection trough 1 to realize the installation of the end sealing plate 7. At this time, the port of the horizontal water collection trough 1 is blocked by setting the end sealing plate 7.
[0050] The wing plate 9 is arranged above the transverse water collection tank 1 and is horizontally arranged. A limiting groove 10 is fixedly provided on the lower surface of the wing plate 9, and the wing plate 9 is locked on the upper side of the short height side plate of the transverse water collection tank 1 through the limiting groove 10.
[0051] By setting up the wing plate 9, a reinforced structure for the transverse water collection trough 1 is formed, which strengthens the adhesion strength to the slope foundation. When the gravel layer is piled up, the gravel layer is piled up based on the wing plate 9, thereby widening the width of the gravel layer on the side of the transverse water collection trough 1 facing the bottom of the slope. When water is discharged and seeps in at the top of the slope, the widened gravel layer strengthens the filtration of seepage water.
[0052] Drainage connector 2-1 is installed under the left side plate of the transverse water collection tank 1, and the lower inner side wall of drainage connector 2-1 is flush with the lower inner side wall of the transverse water collection tank 1.
[0053] Connecting pipe 2-2, wherein the connecting pipe 2-2 is inserted into the drain connector 2-1;
[0054] The swivel joint 2-3 is sleeved on the connecting pipe 2-2, and a sealing gasket is provided between the swivel joint 2-3 and the connecting pipe 2-2;
[0055] Drainage pipe 2-4, wherein the drainage pipe 2-4 is inserted and fixed on the diverter joint 2-3;
[0056] The drain pipe 2-4 is connected to the connecting pipe 2-2 on the drain connector 2-1 through the turning joint 2-3, thereby realizing the drainage of the water accumulated in the transverse water collection tank 1 through the drain pipe 2-4;
[0057] When installing the drainage pipe 2-4, the pitch angle of the drainage pipe 2-4 can be adjusted by rotating the diverting joint 2-3, so that the outlet end of the drainage pipe 2-4 is placed above the adjacent horizontal water collection trough 1 on the lower side. When installing the drainage pipe 2-4, the outlet end of the drainage pipe 2-4 is buried in the gravel layer located above the pad 4. Then, the horizontal water collection trough 1 drains water through the drainage pipe 2-4 in stages, and finally the excess irrigation water collected is discharged into the slope bottom water trough 3 for recycling.
[0058] By adopting the technical solution disclosed in this invention, the following can be achieved:
[0059] When using this slope structure, during structural construction, multiple transverse trenches are dug along contour lines based on the existing slope foundation. Transverse water collection trenches 1 are then installed through these trenches, while longitudinal trenches are simultaneously dug for the installation of drainage pipes 2-4. During backfilling, a gravel layer is first placed over the transverse water collection trenches 1, followed by backfilling. Drought-resistant plants are then planted in cells defined by the transverse water collection trenches 1 and drainage pipes 2-4. An irrigation system is installed at the top of the slope. When watering the vegetation, water flows down the slope and infiltrates into the inner layers. When water seeps into the transverse water collection trenches 1, it is collected and then gradually discharged through the drainage pipes 2-4, ultimately achieving the recycling and reuse of water that has penetrated deep into the foundation. Simultaneously, the transverse water collection trenches 1 and drainage pipes 2-4 within the slope foundation reinforce the foundation structure, ultimately protecting the slope.
[0060] The technical advantages achieved by adopting the above technical solution are as follows:
[0061] 1. Multiple sets of transverse water collection troughs 1 are set up, thereby forming multiple transverse cut-off structures at the contour line section of the slope. This allows the irrigation water that flows downwards and seeps in during irrigation to be collected through the transverse water collection troughs 1, preventing the irrigation water from seeping into the deep foundation and wasting water resources. This improves the utilization rate of irrigation water, thereby reducing the cultivation cost of vegetation on the slope and effectively reducing the financial cost of soil and water conservation.
[0062] 2. A horizontal water collection trough and a vertical connecting pipe 2-2 are set up. The connection between the upper and lower horizontal water collection troughs 1 is achieved through the connecting pipe 2-2, so as to realize the gradual discharge and collection of accumulated water. The grid structure formed by the horizontal water collection trough 1 and the connecting pipe 2-2 is conducive to stabilizing the foundation, strengthening the soil structure of the slope, and facilitating the management of vegetation on the slope surface.
[0063] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.
Claims
1. A slope structure for soil and water conservation in arid areas, characterized in that, It contains: A transverse water collection trough (1), wherein there are several transverse water collection troughs (1), which are equally spaced and buried in the slope; A water guiding and collecting component (2) is provided on a transverse water collecting trough (1); The slope bottom water trough (3) is set at the bottom of the slope, and the transverse water collection trough (1) at the bottom of the slope is set above the slope bottom water trough (3). The aforementioned water diversion and collection assembly (2) includes: Drainage connector (2-1), wherein the drainage connector (2-1) is inserted on the plate facing the bottom of the slope of the transverse water collection trough (1), and the lower inner wall of the drainage connector (2-1) is flush with the lower inner wall of the transverse water collection trough (1). Connecting pipe (2-2), wherein the connecting pipe (2-2) is inserted and fixed on the side wall of the drain connector (2-1); A swivel joint (2-3) is sleeved on a connecting pipe (2-2), and the swivel joint (2-3) is connected to the drain joint (2-1) through the connecting pipe (2-2); Drainage pipe (2-4), wherein the drainage pipe (2-4) is inserted and fixed on the side wall of the turning joint (2-3); The lower side plate of the horizontal water collection trough (1) is set horizontally, and the upper side of the side plate facing the bottom of the slope of the horizontal water collection trough (1) is set higher than the upper side of the side plate facing the top of the slope. The transverse water collection trough (1) is provided with a pad plate (4). The side of the pad plate (4) facing the bottom of the slope is higher than the side of the pad plate (4) facing the top of the slope, and the two sides of the pad plate (4) abut against the two inner side walls of the transverse water collection trough (1). A pad plate 2 (5) is inserted in the transverse water collection trough (1) located above the slope bottom water trough (3). The side of the pad plate 2 (5) facing the bottom of the slope is higher than the side of the pad plate 2 (5) facing the top of the slope. The lower side of the pad plate 2 (5) abuts against the inner wall of the transverse water collection trough (1), and the higher side of the pad plate 2 (5) extends out of the transverse water collection trough (1) and abuts against the inner wall of the slope bottom water trough (3). The inner wall of the transverse water collection trough (1) is provided with several locking blocks (6), and the spacing between adjacent locking blocks (6) is equal. An end sealing plate (7) is inserted into the transverse water collection trough (1), and the side of the end sealing plate (7) is sandwiched between adjacent locking blocks (6). The transverse water collection trough (1) is provided with a reinforcing rib (8), and the end of the reinforcing rib (8) is fixed on the inner side wall of the transverse water collection trough (1). The reinforcing rib (8) abuts against the lower surface of the pad plate (4). The transverse water collection trough (1) is clamped with a wing plate (9), and a limiting slot (10) is fixedly provided on the lower surface of the wing plate (9), and the limiting slot (10) is mounted on the upper side of the side plate of the transverse water collection trough (1) facing the top of the slope.