Debris flow slope surface solid source greening system and implementation method

Abstract

The invention discloses a debris flow slope surface solid source greening system, which comprises an ecological blanket, which is formed by compounding a flexible substrate layer and a vegetation recovery layer and is laid and unfolded along a slope surface; the automatic water collecting devices are arranged at the intersections of the ecological blankets and the intersections with the interval of 1.5 m; the automatic water collecting device comprises a flow guide water collecting tank at the upper part, a solar panel, a water collecting tank at the lower part and an intelligent control system; the solar panel is erected above the water collecting tank, the flow guide water collecting tank is hung between the solar panel and the water collecting tank, and the flow guide water collecting tank is communicated with the water collecting tank through a pipeline. Through cooperation of the anti-scouring ecological blanket structure and intelligent water collection-irrigation, the problems that in the prior art, vegetation is prone to being scoured, and irrigation depends on manpower are solved, and the slope surface source fixing and ecological restoration efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of geological disaster ecological slope protection and restoration, and in particular to a debris flow slope source consolidation and greening system and an implementation method. Background Art

[0002] The ecological damage caused by landslides and debris flows cannot be underestimated. On slopes where landslides and debris flows occur, large deposits of mud, sand, and rocks often form. These deposits are fragmented and loose, and when rainfall infiltrates, they cause erosion of the slope surface, soaking the slope foot, leading to instability and secondary disasters. To eliminate the threat to local life and property, ecological restoration of landslide and debris flow slopes has become a key measure.

[0003] Although existing geological disaster ecological restoration and vegetation restoration technologies can achieve slope ecological restoration, there are still two core bottlenecks: seed loss due to rain erosion in the early stage of vegetation establishment, and vegetation degradation due to drought and water shortage in the later stage; traditional irrigation relies on manual operation and natural precipitation, which is difficult to meet the precise water supply needs of steep slopes.

[0004] Therefore, this application proposes a debris flow slope source consolidation and greening system and implementation method. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a debris flow slope source consolidation and greening system and implementation method to solve the problems raised in the background technology.

[0006] In response to the above-mentioned problems, the present invention proposes a debris flow slope solid source greening system, comprising: an ecological blanket composed of a flexible base layer and a vegetation restoration layer, which is laid out along the slope; an automatic water collection device is arranged at the intersection of the ecological blanket and at intersections spaced 1.5m apart; the automatic water collection device comprises an upper diversion trough, a solar panel and a lower water collection trough and an intelligent control system; the solar panel is mounted above the water collection trough, the diversion trough is suspended between the solar panel and the water collection trough, and the diversion trough is connected to the water collection trough through a pipe.

[0007] Preferably, the ecological blanket is made of a composite weaving of degradable hemp fiber and polypropylene grid in a ratio of 3:2, and has built-in grass seeds, water-retaining gel particles and a slow-release fertilizer layer.

[0008] Preferably, the diversion trough and water collection trough are made of HDPE and carbon black materials, an anti-clogging net is provided on the top of the diversion trough, and one end of the diversion trough extends out of the solar panel to collect rainwater.

[0009] Preferably, the intelligent control system includes a water pump, a soil moisture sensor, a power supply, a control panel and a hose, wherein the power supply receives electrical energy converted from a solar panel to supply power to the soil moisture sensor, the water pump and the control panel.

[0010] Preferably, the hose is a plastic tube with evenly distributed micropores on the tube wall, and the pore diameter is substantially 1 mm. One end of the hose is connected to a water pump, and the other end extends to the plant root area.

[0011] Preferably, the soil moisture sensor is buried under the slope covering layer. When the humidity is detected to be less than 30% RH, the control panel triggers the water pump in the water collection tank to pump water from the water collection tank through the hose for irrigation.

[0012] In addition, the present invention also discloses a method for implementing a debris flow slope source consolidation and greening system, comprising the following steps: Step 1: Clean the slope surface. Clean the debris flow slope that needs to be repaired, remove the gravel and sharp objects on the slope surface, and form a flat working surface. Step 2: Lay the ecological blanket, spreading it along the slope from top to bottom, with adjacent ecological blankets overlapping by 10 cm; Step 3: Fix the ecological blanket. Use special fixing nails to firmly nail the ecological blanket to the slope surface to prevent it from being blown away by the wind or shifted by subsequent water flow. Step 4: Install automatic water collection devices along the intersections of the ecological blanket seams and at intersections every 1.5m; Step 5: Embed the main part of the automatic water collection device into the slope, ensuring that the device is perpendicular to the ground and firmly fits the slope surface, and fix it using a two-way anchoring method; Step 6. Connect the water pump, soil moisture detector, power supply, hose and control board of the automatic water collection device to ensure that the equipment can operate normally.

[0013] Preferably, in step five, the installation direction of the diversion trough in the automatic water collection device is perpendicular to the slope runoff direction, and the buried depth of the trough is ≥30 cm.

[0014] Preferably, the water outlet end of the hose in step 6 extends to 5-8 cm below the vegetation restoration layer of the ecological blanket.

[0015] Preferably, the power source in step six is ​​a solar battery, and the humidity threshold and the water pump are linked to each other through a control panel, and the humidity is ≤30%RH.

[0016] The present invention has the following beneficial effects: 1. This invention improves scour resistance and vegetation survival rate: Through the synergistic effect of the composite ecological blanket and the automatic water collection device, this invention increases the slope's scour resistance and runoff resistance during heavy rain, and improves plant survival rate. The energy of slope runoff scour during heavy rain is significantly attenuated, and the plant emergence rate is significantly improved compared to traditional technologies. 2. The present invention enables self-circulation and precise utilization of water resources for irrigation. The automatic water collection device collects and stores rainfall to improve the utilization rate of rainwater. Combined with the soil moisture detector, power supply, control panel, and water pump, it can achieve precise watering of plants, automatically irrigate plants, and improve the utilization rate of rainwater. 3. The present invention lays a composite ecological blanket on the slope surface and reinforces it, which improves the shear strength of the slope surface. The water collection trough and diversion trough are made of HDPE + carbon black material, which has the characteristics of good effect and low cost. 4. The automatic drip irrigation and water collection device of the present invention is intelligent because it is composed of a solar panel, a soil moisture detection sensor, and a power valve. The device is applicable to a wide range of slopes and has high terrain adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front schematic diagram of the present invention; Figure 2 This is a working principle diagram of the water collection device of the present invention; Figure 3 This is a complete diagram of the water collection device of the present invention; Figure 4 This is a flowchart of system startup and power management in the present invention; Figure 5 This is a flow chart of soil moisture detection and determination in the present invention; Figure 6 This is a flowchart of irrigation execution and safety protection in the present invention; Figure 7 This is a flowchart of the fault handling process in the present invention; Figure 8 This is a data management flow chart of the present invention; In the figure: ecological blanket 1, water collection device 2, water pump 3, soil moisture sensor 4, power supply 5, hose 6, diversion and water collection trough 7, water collection trough 8, solar panel 9, control panel 10. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and examples: like Figure 1-3 As shown, the structure of the ecological blanket 1 includes a flexible base layer and a vegetation restoration layer; wherein the flexible base layer is woven with degradable hemp fiber and polypropylene grid in a ratio of 3:2. The hemp fiber will naturally degrade into humus within 2-3 years, and the polypropylene grid provides long-term tensile strength, with a strength of ≥8kN / m; The pore size of the flexible base layer is strictly limited to less than 3mm to ensure that seeds are not lost while allowing rainwater to infiltrate quickly, with a permeability of ≥200L / (m²·h); the lower layer is a 1.5mm thick hemp fiber mesh that directly contacts the slope surface and promotes the attachment of soil microorganisms; the upper layer is a 2mm thick mixed layer, embedded with grass seeds, water-retaining gel and slow-release fertilizer.

[0019] The vegetation restoration layer mainly includes: local grass seeds, such as Bermuda grass, with a sowing density of ≥50 seeds / m², strong adaptability, and a root system depth of up to 30cm; water-retaining gel particles, which are sodium polyacrylate particles with a particle size of 2-5mm, with a water absorption rate of more than 200 times. They expand when exposed to water, filling the pores of the blanket and inhibiting seed displacement; slow-release fertilizer layer: a mixture of urea and potassium dihydrogen phosphate is coated with a degradable film, and its release period can reach 60-90 days.

[0020] The collaborative working mechanism of the automatic water collection device 2 is as follows: The automatic water collecting device 2 includes the following structures: The solar panel 9 is mounted above the water collecting trough 8, and the diversion water collecting trough 7 is suspended between the solar panel 9 and the water collecting trough 8. The diversion water collecting trough 7 is connected to the water collecting trough 8 through a pipeline.

[0021] Diversion and collection trough 7: One end of the diversion and collection trough 7 extends out of the solar panel 9 to collect rainwater. The trough body is inclined toward the end with the pipe, with an inclination of 15°-20°, and is arranged perpendicular to the slope runoff direction to maximize the interception of rainwater; the top mesh aperture is ≤2mm to intercept fallen leaves and gravel; HDPE+30% carbon black material, UV aging resistance life of more than 10 years, temperature resistance range of -40℃ to 80℃; the volume of the collection trough 8 is set to 20L, the burial depth is more than 30cm, which can avoid freezing in winter, and the inner wall is provided with a water level scale line; a sedimentation area is reserved at the bottom for regular cleaning of sediment.

[0022] The intelligent control system linkage control components include a water pump 3, a soil moisture sensor 4, a power supply 5, a control panel 10, and a hose 6. The power supply 5 receives electricity converted from a solar panel 9 to power the soil moisture sensor 4, the water pump 3, and the control panel 10. The hose 6 is a plastic tube with evenly distributed micropores on the tube wall, with a pore size of approximately 1 mm. One end of the hose 6 is connected to the water pump 3, and the other end extends to the plant root area. The soil moisture sensor 4 is buried under the slope cover. When the humidity is detected to be less than 30% RH, the control panel 10 triggers the water pump 3 in the water collection tank 8 to pump water from the water collection tank 8 through the hose 6 for irrigation. The linkage logic is shown in the following table: Table 1 Intelligent control system

[0023] like Figure 4As shown, when the system starts, light energy is converted into electrical energy through the solar panel 9, and the charging controller detects the voltage of the power supply 5: when the voltage is ≥11V, the control board 10 is awakened and the humidity sensor 4 is initialized; when the voltage is <11V, the system enters deep sleep, and the voltage is re-detected after 2 hours of standby charging, forming a cycle until the startup conditions are met.

[0024] like Figure 5 As shown, the control board 10 reads the data of the humidity sensor 4 and starts triple verification when RH≤30%, with an interval of 10 seconds each time; if it meets the standard three times in a row, irrigation is triggered, otherwise the fault code F1 is marked and the standby mode is started; if the RH is detected to be greater than 30% for the first time, the system sleeps for 60 minutes to reduce energy consumption.

[0025] like Figure 6 As shown in the figure, during the irrigation execution process, the system calculates the pumping time L as the water level in the sump according to the formula T=L×0.5 min. After starting pump 3, the water level is monitored in real time. If the water level is ≤5% of the capacity, the system is forced to shut down and alarm A1 is sent. If the water level is normal, the system pumps water until the time T ends and records the irrigation data.

[0026] like Figure 7 and 8 As shown in the figure, in the fault handling and data management process, in the event of sensor failure, data from adjacent devices is preferentially called to perform irrigation. In the event of failure, periodic irrigation is enabled, and the period can be set to 72 hours / time and 10 minutes / time. In the event of low water level, the system is shut down immediately and a maintenance request is sent. All irrigation data is recorded and uploaded, and remote adjustment of threshold parameters is supported.

[0027] The construction method specifically includes the following steps Step 1: Clean the slope surface. Clean the debris flow slope that needs to be repaired, remove the gravel and sharp objects on the slope surface, and form a flat working surface. Step 2: Lay the ecological blanket 1, unfold it from top to bottom along the slope, and overlap adjacent ecological blankets 1 by 10 cm; Step 3: Fix the ecological blanket 1. Use special fixing nails to firmly nail the ecological blanket 1 to the slope surface to prevent it from being blown away by the wind or shifted by subsequent water flow; Step 4: Arrange automatic water collection devices 2 along the intersection points of the ecological blanket 1 and the intersection points with an interval of 1.5m; Step 5: Embed the main part of the automatic water collection device 2 into the slope, ensuring that the device is perpendicular to the ground and firmly fits the slope surface, and fix it using a two-way anchoring method; Step 6: Connect the water pump 3, soil moisture detector 4, power supply 5, hose 6 and control panel 10 of the automatic water collection device 2 to ensure that the equipment can operate normally.

[0028] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. In other words, equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A debris flow slope solidification and greening system, characterized by: include: An ecological blanket (1) is composed of a flexible base layer and a vegetation restoration layer, and is laid out along a slope; an automatic water collection device (2) is arranged at the intersection of the ecological blanket (1) and at intersections spaced 1.5 m apart; the automatic water collection device (2) comprises an upper diversion trough (7), a solar panel (9), a lower water collection trough (8), and an intelligent control system; the solar panel (9) is mounted above the water collection trough (8), the diversion trough (7) is suspended between the solar panel (9) and the water collection trough (8), and the diversion trough (7) and the water collection trough (8) are connected via a pipeline.

2. The debris flow slope consolidation and greening system according to claim 1 is characterized by: The ecological blanket (1) is woven from degradable hemp fibers and polypropylene grids in a ratio of 3:2, and has grass seeds, water-retaining gel particles and a slow-release fertilizer layer built into it.

3. The debris flow slope consolidation and greening system according to claim 1 is characterized by: The diversion trough (7) and the water collection trough (8) are made of HDPE and carbon black. An anti-clogging net is provided on the top of the diversion trough (7). One end of the diversion trough (7) extends out of the solar panel (9) to collect rainwater.

4. The debris flow slope consolidation and greening system according to claim 1 is characterized by: The intelligent control system comprises a water pump (3), a soil moisture sensor (4), a power supply (5), a control panel (10) and a hose (6), wherein the power supply (5) receives electric energy converted by a solar panel (9) to supply power to the soil moisture sensor (4), the water pump (3) and the control panel (10).

5. The debris flow slope consolidation and greening system according to claim 4 is characterized by: The hose (6) is a plastic tube, and the tube wall is provided with evenly distributed micropores, the pore diameter of which is basically 1 mm. One end of the hose (6) is connected to the water pump (3), and the other end extends to the plant root area.

6. The debris flow slope consolidation and greening system according to claim 4 is characterized by: The soil moisture sensor (4) is buried under the slope cover layer. When the humidity is detected to be less than 30% RH, the control panel (10) triggers the water pump (3) in the water collection tank (8) to pump water from the water collection tank (8) through the hose (6) for irrigation.

7. The method for implementing the debris flow slope source consolidation and greening system according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: Clean the slope surface. Clean the debris flow slope that needs to be repaired, remove the gravel and sharp objects on the slope surface, and form a flat working surface. Step 2: Lay the ecological blanket (1), unfold the ecological blanket (1) from top to bottom along the slope, and overlap adjacent ecological blankets (1) by 10 cm; Step 3: Fix the ecological blanket (1) by using special fixing nails to firmly nail the ecological blanket (1) to the slope surface to prevent it from being blown away by the wind or shifted by subsequent water flow; Step 4: Arrange automatic water collection devices (2) along the intersection points of the ecological blanket (1) and at intersection points with an interval of 1.5m; Step 5: embed the main part of the automatic water collection device (2) into the slope, ensure that the device is perpendicular to the ground and firmly fits the slope surface, and fix it using a two-way anchoring method; Step 6: Connect the water pump (3), soil moisture detector (4), power supply (5), hose (6) and control panel (10) of the automatic water collection device (2) to ensure that the device can operate normally.

8. The method for implementing the debris flow slope consolidation and greening system according to claim 7, characterized in that: In the step 5, the installation direction of the diversion trough (7) in the automatic water collection device (2) is perpendicular to the slope runoff direction, and the burial depth of the water collection trough (8) is ≥30 cm.

9. The method for implementing the debris flow slope source consolidation and greening system according to claim 7, characterized in that: In step 6, the water outlet end of the hose (6) extends to 5-8 cm below the vegetation restoration layer of the ecological blanket (1).

10. The method for implementing the debris flow slope consolidation and greening system according to claim 7, characterized in that: In step six, the power source (5) is a solar battery, and the control panel (10) is used to realize linkage control of the humidity threshold and the water pump (3), with the humidity being ≤30%RH.

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