Rigid-flexible cooperative progressive prevention and control method, system and equipment for high-position debris flow and storage medium

Abstract

The invention discloses a high-position debris flow rigid-flexible cooperative progressive prevention and control method, system and device and a storage medium, and relates to the technical field of geological disaster prevention and control. The method comprises the steps that an energy dissipation pile is provided and installed on the upper portion of a debris flow migration channel; providing at least two flow control type flexible protective nets, and installing the at least two flow control type flexible protective nets in the middle of the debris flow migration channel; and providing a flexible screening net, and installing the flexible screening net at the lower part of the debris flow migration channel. Through the synergistic effect of upstream coarse blocking, midstream flow control and downstream separation, progressive regulation and graded energy dissipation of the debris flow movement process are achieved, the fluid volume weight is reduced at the outlet section, then the debris flow disaster risk is remarkably reduced, and the reliability and risk management and control capacity of prevention and control engineering are improved.

Description

Technical Field

[0001] This invention belongs to the field of geological disaster prevention and control technology, and in particular relates to a method, system, equipment and storage medium for the gradual prevention and control of high-altitude debris flows using a combination of rigid and flexible methods. Background Technology

[0002] Debris flows are a frequent and major geological disaster in mountainous areas of my country. They are characterized by rapid movement and strong impact, often causing devastating losses to the lives and property of downstream residents and critical infrastructure. Currently, debris flow prevention projects mainly rely on retaining structures such as gravity dams, comb-shaped dams, and valley dams. Their design philosophy generally adopts a passive defense model of "centralized interception and storage," reducing the energy of the disaster by accumulating solid materials within the gully. However, this model has significant drawbacks in practical application: First, dam interception leads to the rapid filling of reservoirs with large amounts of boulders, driftwood, and silt, greatly increasing the difficulty and cost of subsequent dredging. In mountainous areas with rugged terrain and inconvenient transportation, dredging and maintenance work is even more difficult to implement. More seriously, large boulders and driftwood in debris flows can easily block the dam's flow structure, forming temporary dams. Once a "dam failure effect" occurs, it will drastically amplify the scale and impact of the debris flow, turning the prevention project itself into a source of increased disaster risk. Therefore, developing a new prevention technology that can effectively divert rather than rigidly intercept debris, and avoid the problems of blockage and dredging, has become an urgent need in this field. Summary of the Invention

[0003] The purpose of this invention is to provide a method, system, equipment, and storage medium for the gradual prevention and control of high-level debris flows using a combination of rigid and flexible approaches. The technical problem to be solved is how to provide a new prevention and control technology that can effectively guide rather than rigidly intercept debris flows and avoid the problems of blockage and dredging.

[0004] The embodiments of this application provide a method for the gradual prevention and control of high-altitude debris flows using a combination of rigid and flexible approaches, including: S01. Provide energy dissipation piles and install them on the upper part of the debris flow transport channel; S02. Provide at least two flow-controlling flexible protective nets and install at least two flow-controlling flexible protective nets in the middle of the debris flow transport channel; S03. Provide a flexible screening screen and install it at the bottom of the debris flow transport channel.

[0005] Optionally, in some embodiments of this application, multiple energy dissipation piles are provided, each energy dissipation pile having a height of h1, where h1 is 2m to 4m; and / or The last flow-controlling flexible protective net is located at the boundary between the flow area and the accumulation area. When the debris flow passes through the last flow-controlling flexible protective net, the debris flow rate is less than 50% of the safe flow rate of the debris flow transport channel.

[0006] Optionally, in some embodiments of this application, the debris flow transport channel includes, from top to bottom, a formation zone, a flow zone, and a deposition zone; and / or The interception rate of the flow-controlling flexible protective net is obtained, as is the height of the flow-controlling flexible protective net and the horizontal distance between two adjacent flow-controlling flexible protective nets. Based on the interception rate, height, and horizontal distance, multiple flow-controlling flexible protective nets are installed sequentially in the debris flow transport channel.

[0007] Optionally, in some embodiments of this application, the energy dissipation pile is located at the boundary between the formation zone and the circulation zone; and / or The interception rate of the flow-control flexible protective net is η. ; In the formula, η is the interception rate. The distance between the bottom of the flow-controlling flexible protective net and the bottom of the debris flow transport channel. This represents the height of the mud level line.

[0008] Optionally, in some embodiments of this application, η is obtained as follows: S021, Provide debris flow rate Q The formula is as follows: ; In the formula, Q This refers to the debris flow rate. S The area of ​​debris flow circulation. v The velocity of the debris flow. The height of the mud level line. L 2 represents the width of the debris flow transport channel at the location of the flow-controlling flexible protective net; S022, Provide traffic interception. Q 拦 The formula is as follows: ; In the formula, Q 拦 For the flow control flexible protective net to intercept traffic, S 拦 The interception area of ​​the flow-control flexible protective net. v The velocity of the debris flow. The distance between the bottom of the flow-controlling flexible protective net and the bottom of the debris flow transport channel. The height of the mud level line. L 2 represents the width of the debris flow transport channel at the location of the flow-controlling flexible protective net; S023. Obtain the interception rate η of the flow-control flexible protective net, using the following formula: ; In the formula, η is the interception rate of the flow-control flexible protective net. Q 拦 For the flow control flexible protective net to intercept traffic, Q This refers to the debris flow rate. The distance between the bottom of the flow-controlling flexible protective net and the bottom of the debris flow transport channel. This represents the height of the mud level line.

[0009] Optionally, in some embodiments of this application, the height of each of the flow-controlling flexible protective nets is h2. ; In the formula, h2 is the height of the flow-controlling flexible protective net. α The slope of the location where the flow-control flexible protective netting is located. β V is the angle between the flexible protective netting installed and the slope surface. 流 The interception capacity of the flow-control flexible protective net is the amount of debris flow source. L 2 represents the width of the debris flow transport channel at the location of the flow-controlling flexible protective net.

[0010] Optionally, in some embodiments of this application, the horizontal distance L1 between two adjacent flow-controlling flexible protective nets is... ; In the formula, L1 is the horizontal distance between two adjacent flow-controlling flexible protective nets, and v max This refers to the maximum permissible flow velocity that a debris flow can achieve after energy dissipation and re-acceleration within the channel between two adjacent flow-controlling flexible protective nets. α denoted by , where is the slope of the location of the flow-controlling flexible protective net, and g is the acceleration due to gravity.

[0011] Accordingly, embodiments of this application also provide a rigid-flexible synergistic progressive prevention and control system for high-altitude debris flows, including: Energy dissipation pile module, providing energy dissipation piles, which are installed on the upper part of the debris flow transport channel; A flow-controlling flexible protective net module provides at least two flow-controlling flexible protective nets, which are installed in the middle of the debris flow transport channel; Flexible screening mesh module provides a flexible screening mesh that is installed at the bottom of the debris flow transport channel.

[0012] Accordingly, embodiments of this application also provide a computer device, including a storage device and a processor, wherein the storage device stores a computer program, and when the computer program is executed by the processor, the processor performs the steps of the method described above.

[0013] Accordingly, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, causes the processor to perform the steps of the method described above.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: This application deploys an energy-dissipating pile group upstream of the debris flow channel to intercept large-diameter boulders and driftwood in the debris flow, achieving initial interception and energy dissipation. In the midstream, multiple flow-controlling flexible protective nets are arranged in sections to progressively intercept and dissipate energy during the debris flow process, ensuring controlled fluid discharge while effectively regulating flow velocity and volume. A flexible protective net is installed at the downstream end of the channel to retain solid material sources and achieve water-rock separation, thereby reducing the fluid's bulk density. Through the synergistic effect of "upstream interception, midstream flow control, and downstream separation," this application achieves progressive regulation and staged energy dissipation of the debris flow process, reduces the fluid's bulk density at the outlet section, and thus significantly mitigates the risk of debris flow disasters, improving the reliability and risk management capabilities of the prevention and control project.

[0015] This application deploys multiple flow-controlling flexible protective nets in the debris flow transport channel to progressively intercept and dissipate energy during the debris flow's movement. While ensuring flow control, it allows the debris flow to continue moving downstream. This application represents a significant shift in the concept of debris flow prevention, moving from the traditional passive "interception" to proactive "regulation" and "energy dissipation."

[0016] This application transforms the traditional "hard interception" into "controllable diversion" through a unique open structure design. This structure actively adjusts the interception rate while ensuring necessary flow capacity, allowing debris flows to pass under control, thus achieving the dual effect of effectively dissipating kinetic energy and fundamentally preventing blockage. Simultaneously, by rationally setting the height of the hanging net, sufficient effective storage capacity is created to accommodate some debris flow, preventing it from overflowing. Furthermore, by deploying a multi-level flow-controlling flexible protective net and precisely controlling the spacing between the nets, the peak flow is gradually reduced, and the fluid kinetic energy is dissipated, forming a gradual energy dissipation and flow control effect. This allows the debris flow source to be smoothly transported to the slope toe under controlled conditions, ultimately achieving effective management of debris flow disaster risks. Attached Figure Description

[0017] Figure 1 This is a flowchart of the rigid-flexible synergistic progressive prevention and control method for high-level debris flows according to the present invention. Figure 2 This is a three-dimensional view of the debris flow transport channel of the rigid-flexible synergistic progressive prevention and control method for high-level debris flows according to the present invention. Figure 3 This is a cross-sectional view of the debris flow transport channel of the rigid-flexible synergistic progressive prevention and control method for high-level debris flows according to the present invention. Figure 4A diagram showing the absence of flow control and energy dissipation when a flexible protective net for debris flow transport channels is not installed. Figure 5 This diagram illustrates the effect of the rigid-flexible synergistic gradual prevention and control method for high-level debris flows according to the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0019] The technical solution of this application is as follows: Firstly, please refer to Figures 1 to 3 This application provides a method for the gradual prevention and control of high-altitude debris flows using a combination of rigid and flexible approaches, including: S01. Provide energy dissipation piles and install them on the upper part of the debris flow transport channel; S02. Provide at least two flow-controlling flexible protective nets and install at least two flow-controlling flexible protective nets in the middle of the debris flow transport channel; S03. Provide a flexible screening screen and install it at the bottom of the debris flow transport channel.

[0020] In S01: In some embodiments, multiple energy dissipation piles are provided, and the height of each energy dissipation pile is h1, where h1 is 2m to 4m, for example, it can be 2m, 2.2m, 2.5m, 2.8m, 3m, 3.2m, 3.5m, 3.8m, 4m, etc.

[0021] In some embodiments, the debris flow transport channel includes, from top to bottom, a formation zone, a flow zone, and a deposition zone.

[0022] Furthermore, the energy dissipation pile is located at the boundary between the formation zone and the circulation zone.

[0023] It is understandable that multiple energy dissipation piles are installed to intercept large-diameter boulders and driftwood in debris flows, preventing them from blocking the flow channels at the bottom of the flow-controlling flexible protective net.

[0024] In S02: In some embodiments, the interception rate of the flow-controlling flexible protective net is obtained, the height of the flow-controlling flexible protective net is obtained, and the horizontal distance between two adjacent flow-controlling flexible protective nets is obtained. Based on the interception rate, height, and horizontal distance, multiple flow-controlling flexible protective nets are sequentially installed in the debris flow transport channel.

[0025] Furthermore, the interception rate of the flow-control flexible protective net is η. ; In the formula, η is the interception rate. The distance between the bottom of the flow-controlling flexible protective net and the bottom of the debris flow transport channel. This represents the height of the mud level line.

[0026] It is understandable that the mudline is the maximum flow depth left after passing through the debris flow transport channel when no prevention measures are taken.

[0027] Furthermore, η is obtained as follows: S021, Provide debris flow rate Q The formula is as follows: ; In the formula, Q This refers to the debris flow rate. S The area of ​​debris flow circulation. v The velocity of the debris flow. The height of the mud level line. L 2 represents the width of the debris flow transport channel at the location of the flow-controlling flexible protective net; S022, Provide traffic interception. Q 拦 The formula is as follows: ; In the formula, Q 拦 For the flow control flexible protective net to intercept traffic, S 拦 The interception area of ​​the flow-control flexible protective net. v The velocity of the debris flow. The distance between the bottom of the flow-controlling flexible protective net and the bottom of the debris flow transport channel. The height of the mud level line. L 2 represents the width of the debris flow transport channel at the location of the flow-controlling flexible protective net; S023. Obtain the interception rate η of the flow-control flexible protective net, using the following formula: ; In the formula, η is the interception rate of the flow-control flexible protective net. Q 拦 For the flow control flexible protective net to intercept traffic, Q This refers to the debris flow rate. The distance between the bottom of the flow-controlling flexible protective net and the bottom of the debris flow transport channel. This represents the height of the mud level line.

[0028] Furthermore, the height of each of the aforementioned flow-controlling flexible protective nets is h2. ; In the formula, h2 is the height of the flow-controlling flexible protective net. α The slope of the location where the flow-control flexible protective netting is located. β V is the angle between the flexible protective netting installed and the slope surface. 流 The interception capacity of the flow-control flexible protective net is the amount of debris flow source. L 2 represents the width of the debris flow transport channel at the location of the flow-controlling flexible protective net.

[0029] It can be understood that the height of the flow-controlling flexible protective net is the distance between the flow-controlling flexible protective net and the cross-section of the gully in which the debris flow travels.

[0030] Furthermore, the horizontal distance L1 between two adjacent flow-controlling flexible protective nets, ; In the formula, L1 is the horizontal distance between two adjacent flow-controlling flexible protective nets, and v max This refers to the maximum permissible flow velocity that a debris flow can achieve after energy dissipation and re-acceleration within the channel between two adjacent flow-controlling flexible protective nets. α denoted by , where is the slope of the location of the flow-controlling flexible protective net, and g is the acceleration due to gravity.

[0031] It is understandable that the horizontal distance between the first flow-controlling flexible protective net and multiple energy dissipation piles from the upper to the lower part of the debris flow transport channel is also L1.

[0032] It is understandable that, from the upper to the lower part of the debris flow transport channel, within the channel between two adjacent flow-controlling flexible protective nets, the maximum permissible velocity that the debris flow can reach after energy dissipation and re-acceleration is v. max .

[0033] For example, to ensure that the movement of high-altitude debris flows is within a controllable range, v max Set it to 10m / s to obtain L1.

[0034] It is understandable that the energy dissipation pile group is built at the junction of the formation zone and the flow zone from the upper to the lower part of the debris flow transport channel; the installation position of the first flow control flexible protection net and subsequent flow control flexible protection nets is determined according to the actual slope of the debris flow transport channel and the formula calculation.

[0035] In some embodiments, the last flow-controlling flexible protective net is located at the boundary between the flow area and the accumulation area. When the debris flow passes through the last flow-controlling flexible protective net, the debris flow rate is less than 50% of the safe flow rate of the debris flow transport channel.

[0036] In some embodiments, each flow-controlling flexible protective net is anchored on both sides to the slope of the debris flow transport channel by anchor bolts.

[0037] In some embodiments, the flexible screening mesh is located in the accumulation zone and is anchored on both sides to the slope of the debris flow transport channel by anchor bolts.

[0038] It is understandable that each flow-controlling flexible protective net is anchored to the slope of the debris flow transport channel on both sides by anchor bolts, forming a rigid and stable structure, thereby constructing a rigid and stable boundary. On this basis, the two sides of the flow-controlling flexible protective net are firmly fixed, thus forming an effective lateral constraint structure.

[0039] For example, the flow-control flexible protective net is a steel wire rope net.

[0040] In this application, considering the structural strength, construction convenience and efficiency of the retaining structure, in areas with large debris flow volume and strong impact force, if construction conditions permit, the flexible structure flow control flexible protection net can be replaced with a rigid structure (flow control gravity dam, etc.) to enhance the structural strength and impact resistance, while also meeting the effect of progressive flow control and graded energy dissipation.

[0041] Figure 4 A schematic diagram showing the current state of debris flow transport in a debris flow transport corridor without any prevention and control measures. Figure 5 This is a schematic diagram of the structural layout and control effect (blocking, flow control and separation) of the rigid-flexible synergistic progressive prevention and control of debris flows in this invention.

[0042] Secondly, embodiments of this application provide a rigid-flexible combined progressive prevention system for high-altitude debris flows, including: Energy dissipation pile module, providing energy dissipation piles, which are installed on the upper part of the debris flow transport channel; A flow-controlling flexible protective net module provides at least two flow-controlling flexible protective nets, which are installed in the middle of the debris flow transport channel; Flexible screening mesh module provides a flexible screening mesh that is installed at the bottom of the debris flow transport channel.

[0043] In the energy dissipation pile module: In some embodiments, multiple energy dissipation piles are provided, and the height of each energy dissipation pile is h1, where h1 is 2m to 4m, for example, it can be 2m, 2.2m, 2.5m, 2.8m, 3m, 3.2m, 3.5m, 3.8m, 4m, etc.

[0044] In some embodiments, the debris flow transport channel includes, from top to bottom, a formation zone, a flow zone, and a deposition zone.

[0045] Furthermore, the energy dissipation pile is located at the boundary between the formation zone and the circulation zone.

[0046] It is understandable that multiple energy dissipation piles are installed to intercept large-diameter boulders and driftwood in debris flows, preventing them from blocking the flow channels at the bottom of the flow-controlling flexible protective net.

[0047] In the flow-controlled flexible protective net module: In some embodiments, the interception rate of the flow-controlling flexible protective net is obtained, the height of the flow-controlling flexible protective net is obtained, and the horizontal distance between two adjacent flow-controlling flexible protective nets is obtained. Based on the interception rate, height, and horizontal distance, multiple flow-controlling flexible protective nets are sequentially installed in the debris flow transport channel.

[0048] Furthermore, the interception rate of the flow-control flexible protective net is η. ; In the formula, η is the interception rate. The distance between the bottom of the flow-controlling flexible protective net and the bottom of the debris flow transport channel. This represents the height of the mud level line.

[0049] It is understandable that the mudline is the maximum flow depth left after passing through the debris flow transport channel when no prevention measures are taken.

[0050] Furthermore, η is obtained as follows: S021, Provide debris flow rate Q The formula is as follows: ; In the formula, Q This refers to the debris flow rate. S The area of ​​debris flow circulation. v The velocity of the debris flow. The height of the mud level line. L 2 represents the width of the debris flow transport channel at the location of the flow-controlling flexible protective net; S022, Provide traffic interception. Q 拦 The formula is as follows: ; In the formula, Q 拦 For the flow control flexible protective net to intercept traffic, S 拦 The interception area of ​​the flow-control flexible protective net. v The velocity of the debris flow. The distance between the bottom of the flow-controlling flexible protective net and the bottom of the debris flow transport channel. The height of the mud level line. L 2 represents the width of the debris flow transport channel at the location of the flow-controlling flexible protective net; S023. Obtain the interception rate η of the flow-control flexible protective net, using the following formula: ; In the formula, η is the interception rate of the flow-control flexible protective net. Q 拦 For the flow control flexible protective net to intercept traffic, Q This refers to the debris flow rate. The distance between the bottom of the flow-controlling flexible protective net and the bottom of the debris flow transport channel. This represents the height of the mud level line.

[0051] Furthermore, the height of each of the aforementioned flow-controlling flexible protective nets is h2. ; In the formula, h2 is the height of the flow-controlling flexible protective net. α The slope of the location where the flow-control flexible protective netting is located. β V is the angle between the flexible protective netting installed and the slope surface. 流 The interception capacity of the flow-control flexible protective net is the amount of debris flow source. L 2 represents the width of the debris flow transport channel at the location of the flow-controlling flexible protective net.

[0052] It can be understood that the height of the flow-controlling flexible protective net is the distance between the flow-controlling flexible protective net and the cross-section of the gully in which the debris flow travels.

[0053] Furthermore, the horizontal distance L1 between two adjacent flow-controlling flexible protective nets, ; In the formula, L1 is the horizontal distance between two adjacent flow-controlling flexible protective nets, and v max This refers to the maximum permissible flow velocity that a debris flow can achieve after energy dissipation and re-acceleration within the channel between two adjacent flow-controlling flexible protective nets. α denoted by , where is the slope of the location of the flow-controlling flexible protective net, and g is the acceleration due to gravity.

[0054] It is understandable that the horizontal distance between the first flow-controlling flexible protective net and multiple energy dissipation piles from the upper to the lower part of the debris flow transport channel is also L1.

[0055] It is understandable that, from the upper to the lower part of the debris flow transport channel, within the channel between two adjacent flow-controlling flexible protective nets, the maximum permissible velocity that the debris flow can reach after energy dissipation and re-acceleration is v. max .

[0056] For example, to ensure that the movement of high-altitude debris flows is within a controllable range, v max Set it to 10m / s to obtain L1.

[0057] It is understandable that the energy dissipation pile group is built at the junction of the formation zone and the flow zone from the upper to the lower part of the debris flow transport channel; the installation position of the first flow control flexible protection net and subsequent flow control flexible protection nets is determined according to the actual slope of the debris flow transport channel and the formula calculation.

[0058] In some embodiments, the last flow-controlling flexible protective net is located at the boundary between the flow area and the accumulation area. When the debris flow passes through the last flow-controlling flexible protective net, the debris flow rate is less than 50% of the safe flow rate of the debris flow transport channel.

[0059] In some embodiments, each flow-controlling flexible protective net is anchored on both sides to the slope of the debris flow transport channel by anchor bolts.

[0060] In the flexible screening mesh module: In some embodiments, the flexible screening mesh is located in the accumulation zone and is anchored on both sides to the slope of the debris flow transport channel by anchor bolts.

[0061] It is understandable that each flow-controlling flexible protective net is anchored to the slope of the debris flow transport channel on both sides by anchor bolts, forming a rigid and stable structure, thereby constructing a rigid and stable boundary. On this basis, the two sides of the flow-controlling flexible protective net are firmly fixed, thus forming an effective lateral constraint structure.

[0062] For example, the flow-control flexible protective net is a steel wire rope net.

[0063] Thirdly, this application provides a computer device including a storage device and a processor. The storage device stores a computer program, and when the computer program is executed by the processor, the processor performs the steps of the above-described rigid-flexible combined progressive prevention and control method for high-altitude debris flows.

[0064] The computer device can be a desktop computer, laptop, handheld computer, or cloud server, etc. The computer device can interact with the user via a keyboard, mouse, remote control, touchpad, or voice control.

[0065] The memory includes at least one type of readable storage medium, including flash memory, hard disk, multimedia card, card-type memory (e.g., SD or D-interface display memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, disk, optical disk, etc. In some embodiments, the memory may be an internal storage unit of the computer device, such as the hard disk or memory of the computer device. In other embodiments, the memory may also be an external storage device of the computer device, such as a plug-in hard disk, smart media card (SMC), secure digital card (SD), flash card, etc., equipped on the computer device. Of course, the memory may include both internal storage units and external storage devices of the computer device. In this embodiment, the memory is often used to store the operating system and various application software installed on the computer device, such as the program code of the rigid-flexible co-progressive prevention method for high-altitude debris flow. In addition, the memory can also be used to temporarily store various types of data that have been output or will be output.

[0066] In some embodiments, the processor may be a central processing unit (CPU), a controller, a microcontroller, a microprocessor, or other data processing chip. The processor is typically used to control the overall operation of the computer device. In this embodiment, the processor is used to run program code stored in the memory or process data, for example, to run program code for a rigid-flexible combined progressive prevention method for high-altitude debris flows.

[0067] Fourthly, this application provides a computer-readable storage medium storing a computer program, which, when executed by a processor, causes the processor to perform the steps of the above-described rigid-flexible coordinated progressive prevention and control method for high-altitude debris flows.

[0068] The computer-readable storage medium stores an interface display program, which can be executed by at least one processor to enable the at least one processor to perform the steps of the above-described rigid-flexible combined progressive prevention and control method for high-altitude debris flows.

[0069] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the high-altitude debris flow rigid-flexible coordinated progressive prevention and control method described in the embodiments of this application.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for the gradual prevention and control of high-altitude debris flows using a combination of rigid and flexible approaches, characterized in that... include: Provide energy dissipation piles and install them on the upper part of the debris flow transport channel; Provide at least two flow-controlling flexible protective nets and install at least two flow-controlling flexible protective nets in the middle of the debris flow transport channel; Provide flexible screening mesh, which is installed at the bottom of the debris flow transport channel.

2. The method for gradual prevention and control of high-level debris flows using a combination of rigid and flexible approaches according to claim 1, characterized in that, Multiple energy dissipation piles are installed, each with a height of h1, where h1 is 2m to 4m; and / or The last flow-controlling flexible protective net is located at the boundary between the flow area and the accumulation area. When the debris flow passes through the last flow-controlling flexible protective net, the debris flow rate is less than 50% of the safe flow rate of the debris flow transport channel.

3. The method for gradual prevention and control of high-level debris flows using a combination of rigid and flexible approaches according to claim 1, characterized in that, The debris flow transport channel includes, from top to bottom, a formation zone, a flow zone, and a deposition zone; and / or The interception rate of the flow-controlling flexible protective net is obtained, as is the height of the flow-controlling flexible protective net and the horizontal distance between two adjacent flow-controlling flexible protective nets. Based on the interception rate, height, and horizontal distance, multiple flow-controlling flexible protective nets are installed sequentially in the debris flow transport channel.

4. The method for gradual prevention and control of high-level debris flows using a combination of rigid and flexible approaches as described in claim 3, characterized in that, The energy dissipation piles are located at the boundary between the formation zone and the circulation zone; and / or The interception rate of the flow-control flexible protective net is η. ； In the formula, η is the interception rate. The distance between the bottom of the flow-controlling flexible protective net and the bottom of the debris flow transport channel. This represents the height of the mud level line.

5. The method for gradual prevention and control of high-level debris flows using a combination of rigid and flexible approaches according to claim 4, characterized in that, The method for obtaining η is as follows: Provide debris flow rate Q The formula is as follows: ； In the formula, Q This refers to the debris flow rate. S The area of ​​debris flow circulation. v The velocity of the debris flow. The height of the mud level line. L 2 represents the width of the debris flow transport channel at the location of the flow-controlling flexible protective net; Provide traffic blocking Q 拦 The formula is as follows: ； In the formula, Q 拦 For the flow control flexible protective net to intercept traffic, S 拦 The interception area of ​​the flow-control flexible protective net. v The velocity of the debris flow. The distance between the bottom of the flow-controlling flexible protective net and the bottom of the debris flow transport channel. The height of the mud level line. L 2 represents the width of the debris flow transport channel at the location of the flow-controlling flexible protective net; The interception rate η of the flow-control flexible protective net is obtained by the following formula: ； In the formula, η is the interception rate of the flow-control flexible protective net. Q 拦 For the flow control flexible protective net to intercept traffic, Q This refers to the debris flow rate. The distance between the bottom of the flow-controlling flexible protective net and the bottom of the debris flow transport channel. This represents the height of the mud level line.

6. The method for the gradual prevention and control of high-level debris flows using a combination of rigid and flexible approaches according to claim 1, characterized in that, The height of each of the aforementioned flow-controlling flexible protective nets is h2. ； In the formula, h2 is the height of the flow-controlling flexible protective net. α The slope of the location where the flow-control flexible protective netting is located. β V is the angle between the flexible protective netting installed and the slope surface. 流 The interception capacity of the flow-control flexible protective net is the amount of debris flow source. L 2 represents the width of the debris flow transport channel at the location of the flow-controlling flexible protective net.

7. The method for gradual prevention and control of high-level debris flows using a combination of rigid and flexible approaches according to claim 1, characterized in that, The horizontal distance L1 between two adjacent flow-controlling flexible protective nets ； In the formula, L1 is the horizontal distance between two adjacent flow-controlling flexible protective nets, and v max This refers to the maximum permissible flow velocity that a debris flow can achieve after energy dissipation and re-acceleration within the channel between two adjacent flow-controlling flexible protective nets. α denoted by , where is the slope of the location of the flow-controlling flexible protective net, and g is the acceleration due to gravity.

8. A rigid-flexible synergistic progressive prevention and control system for high-level debris flows, characterized in that: include: Energy dissipation pile module, providing energy dissipation piles, which are installed on the upper part of the debris flow transport channel; A flow-controlling flexible protective net module provides at least two flow-controlling flexible protective nets, which are installed in the middle of the debris flow transport channel; Flexible screening mesh module provides a flexible screening mesh that is installed at the bottom of the debris flow transport channel.

9. A computer device, characterized in that, It includes a storage device and a processor, the storage device storing a computer program that, when executed by the processor, causes the processor to perform the steps of the method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The device stores a computer program that, when executed by a processor, causes the processor to perform the steps of the method as described in any one of claims 1-7.

Images