A three-dimensional split-flow debris flow interceptor structure suitable for low-gravity environments

Abstract

The present invention relates to a three-dimensional, diverting debris flow interception structure suitable for low-gravity environments. The structure is formed by arranging a plurality of intercepting piles. The intercepting piles include a intercepting assembly and a return flow assembly. The intercepting assemblies are multiple and vertically connected to form a pile. A single return flow assembly is mounted on the top of the pile. The intercepting assembly has a pointed tip facing the direction of the debris flow, while the return flow assembly curves toward the incoming debris flow. Compared to existing technologies, this invention offers advantages such as more rational structural stress distribution, replaceable key structures, and low cost.

Description

Technical Field

[0001] The invention belongs to the field of engineering geology, and in particular relates to a debris flow retaining structure in a special environment. Background Art

[0002] The essence of geological hazards such as debris flows and landslides is the large-scale, high-speed movement of particle systems under the pull of gravity. On the surface, these disasters cause enormous property damage and casualties. Due to the widespread distribution of landslides, it is difficult to completely avoid landslide-prone areas in practical engineering projects. Therefore, retaining dams, retaining piles, and retaining nets are often used to protect key building areas and minimize the damage caused by landslides and debris flows.

[0003] Extensive exploration of extraterrestrial planets has revealed that landslides and other hazards are also common on extraterrestrial planets and satellites, and their scale is significantly greater than on Earth. This may be significantly related to their gravitational environment. The basic mechanical properties of rock and soil particle systems are significantly correlated with the stress environment they inhabit. Therefore, the extremely large-scale landslides on extraterrestrial planets may be caused by their low gravity environment.

[0004] Research on landslide characteristics in low-gravity environments has revealed significant differences in the impact force characteristics and impact patterns of landslides compared to those on the surface. Given the same impact velocity, the impact force exerted by particle systems in low-gravity environments can be up to ten times greater than that on the surface. Furthermore, low-gravity environments are more prone to particle overflow, where particles rapidly ascend along retaining structures, then fly freely over the retaining walls before gradually falling back to the ground under the influence of gravity. This can lead to more complex secondary hazards. This change in gravity complicates the mechanisms of particle system impact disasters and their prevention.

[0005] With the rapid development of human aerospace technology, the construction of extraterrestrial bases has gradually entered the theoretical demonstration stage. To fully enhance the safety of extraterrestrial bases and reduce the difficulty and cost of construction, it is necessary to design an arresting system that is more adaptable to special gravity environments. Summary of the Invention

[0006] The purpose of the present invention is to address the problems existing in the prior art and provide a three-dimensional diversion debris flow blocking structure suitable for low-gravity environments with more reasonable structural stress, economy and safety.

[0007] The present invention adopts the following technical solutions:

[0008] A three-dimensional diversion debris flow interception structure suitable for low-gravity environments, characterized in that it is formed by arranging a plurality of interception piles;

[0009] The retaining pile includes a retaining assembly and a return flow assembly; there are multiple retaining assemblies, which are vertically connected to each other to form a pile; there is one return flow assembly, which is installed on the top of the pile; the retaining assembly is provided with a tip facing the impact direction of the debris flow, and the return flow assembly is bent toward the direction of the debris flow.

[0010] The blocking assembly includes a horizontal diversion pile and a vertical diversion rod;

[0011] The horizontal diversion pile includes a horizontal diversion surface, a diversion rod slot, and a diversion rod reinforcement mortise. There are multiple diversion rod slots, which are arranged in multiple layers on the horizontal diversion surface, and the layers are staggered with each other. The diversion rod reinforcement mortise is located in the diversion rod slot.

[0012] The vertical diverter rod includes a vertical diverter surface and a diverter rod reinforcement tenon; the horizontal diverter pile is located at the front section of the rod, and the diverter rod reinforcement tenon is at the rear section of the rod;

[0013] The horizontal diversion pile and the vertical diversion rod are connected via a diversion rod reinforcement tenon and a diversion rod reinforcement mortise.

[0014] Preferably, the horizontal diversion pile is a pentagonal prism, with its sharp corner facing the impact direction of the debris flow.

[0015] Preferably, the diverter rod slots of the horizontal diverter pile are divided into two layers, the upper and lower layers, which are staggered with each other.

[0016] Preferably, the vertical diverter rod has a basic shape of a vertical diverter surface at the front section of the rod, which is a triangular prism with the sharp corner facing directly downward; the basic shape of the diverter rod reinforcement tenon at the rear section of the rod is a cube, and the end section has an upwardly protruding tenon to cooperate with the diverter rod reinforcement mortise of the horizontal diverter pile.

[0017] The return flow component includes a top return flow curved surface; the cross section of the top return flow curved surface is a curved surface, the bottom of which is vertically fixed to the top of the horizontal diversion pile, and the top of which is bent toward the incoming direction of the debris flow.

[0018] Preferably, the cross-section of the top reflow curved surface is a quarter of a circle.

[0019] Furthermore, the retaining structure includes at least two rows of retaining piles, the retaining piles in the rear row are higher than those in the front row, and the two rows of retaining piles are staggered front to back.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. The front force of the retaining structure is reduced, the structural stability is higher, and the structure is not easily damaged or failed in instantaneous impact.

[0022] 2. It has a vertical blocking effect, which can effectively reduce the particle climbing effect in a low-gravity environment and reduce the possibility of overflow.

[0023] 3. The overall structure can be constructed in sections, and key components are replaceable. The overall device can be flexibly adjusted according to actual site conditions. This reduces overall construction costs and facilitates subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the retaining pile structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the disassembly of the retaining pile;

[0026] Figure 3 This is a disassembled schematic diagram of the assembly structure of the vertical diverter rod;

[0027] Figure 4 This is a schematic diagram of the retaining structure layout.

[0028] Reference numerals:

[0029] Horizontal diversion pile 1, horizontal diversion surface 1-1, diversion rod slot 1-2, diversion rod reinforcement mortise 1-3;

[0030] Vertical diverter rod 2, vertical diverter surface 2-1, diverter rod reinforcement tenon 2-2;

[0031] Top reflow surface 3. DETAILED DESCRIPTION

[0032] The following is a detailed description of the technical solution of the present invention with reference to a specific example. It should be noted that this example is only for introduction, and the specific parameters such as pile height, spacing, number of rows, etc. need to be designed in combination with the actual project.

[0033] A three-dimensional diversion debris flow interception structure suitable for low gravity environment, formed by a combination of multiple interception piles. Figure 1 As shown, the retaining pile includes a retaining assembly and a return flow assembly; there are multiple retaining assemblies, which are vertically connected to each other to form a pile; there is one return flow assembly, which is installed on the top of the pile; the retaining assembly is provided with a tip facing the impact direction of the debris flow, and the return flow assembly is bent toward the incoming direction of the debris flow.

[0034] The blocking assembly includes a horizontal diversion pile 1 and a vertical diversion rod 2.

[0035] The reflow component includes a top reflow curved surface 3 .

[0036] The blocking and recovery of the overall structure can be divided into three processes: horizontal diversion - vertical diversion - return flow, specifically:

[0037] The horizontal diversion pile 1 can achieve the diversion and initial interception of the landslide debris flow. The special-shaped cross-section greatly reduces the front impact load borne by the interception structure. As the impact continues, the particle system in the low-gravity environment climbs rapidly along the pile body.

[0038] At this time, the vertical diverter rod 2 begins to work, and through the special-shaped cross section, it disturbs the flow trajectory of the particle system, increases the energy consumption during the flow process, and thus reduces the climbing effect;

[0039] However, since the vertical diverter rod 2 mainly disturbs the particle system rather than blocks it, some particles will still pass through the vertical blocking area and climb to a higher area; at this time, the top return flow surface 3 can collect the scattered particles and guide them back to the direction of the landslide flow, thereby minimizing the overflow phenomenon.

[0040] Figure 2 A disassembly diagram of each part of the retaining pile is given. The device is cast in a modular manner. A single retaining pile includes multiple retaining components and a return flow component. The retaining components are vertically connected to each other to form a pile, and the return flow component is installed on the top. The tip of the retaining component faces the impact direction of the debris flow. Various methods can be used to fix the components, such as steel-concrete structure casting, mortise and tenon structure, etc. It can be determined according to the actual project and construction conditions. The retaining component includes a horizontal diverter pile 1 and a vertical diverter rod 2. According to its functional structure, it can be further subdivided into a horizontal diverter surface 1-1, a diverter rod slot 1-2, and a diverter rod reinforcement mortise 1-3. The vertical diverter rod 2 can be subdivided into a vertical diverter surface 2-1 and a diverter rod reinforcement mortise 2-2 according to the function of each part. The horizontal diverter pile 1 and the vertical diverter rod 2 are connected by the diverter rod reinforcement mortise 2-2 and the diverter rod reinforcement mortise 1-3.

[0041] As an embodiment, for example and not limitation, the horizontal diversion pile 1 is a pentagonal prism, and its diversion rod slots 1-2 are divided into two layers, upper and lower layers.

[0042] As an embodiment, for example and not limitation, the vertical diverter rod 2, the vertical diverter surface 2-1 of the front section of the rod is basically in the form of a triangular prism, with the sharp corner facing directly downward; the diverter rod reinforcement tenon 2-2 of the rear section of the rod is basically in the form of a cube, and the end section has an upwardly protruding tenon so as to cooperate with the diverter rod reinforcement mortise 1-3 of the horizontal diverter pile 1.

[0043] As an embodiment, for example and not limitation, the cross section of the top reflow curved surface 3 is a quarter of a circle.

[0044] Figure 3A disassembled diagram of the vertical diverter rod assembly structure is provided. During installation, the vertical diverter rod 2 is simply inserted into the diverter rod slot 1-2. When debris flow impacts the barrier structure, the particles rise, causing the vertical diverter rod 2 to lift slightly upward. The diverter rod reinforcement tenon 2-2 engages with the diverter rod reinforcement mortise 1-3, enhancing the vertical diverter rod's impact resistance.

[0045] Figure 4 A schematic diagram of the retaining structure layout is provided. It should be noted that this diagram is only one possible layout pattern. In actual projects, adjustments and supplements will need to be made based on actual conditions. Figure 4 The dotted box in the figure represents the loop boundary. In actual engineering, multiple retaining structures are required to form a retaining structure group to effectively prevent and control debris flow disasters. The layout of the retaining structure mainly has the following points: ① The rear row of retaining structures (retaining piles) must be higher than the front row. ② There must be at least two rows of retaining structures (retaining piles), and the number can be increased to three to four rows depending on the situation. ③ There must be a lateral offset between each row of retaining structures (retaining piles), and they cannot be aligned front to back.

[0046] The above description is only a description of the preferred embodiments of the present application and does not limit the scope of the present application. Any changes or modifications made by any person skilled in the art based on the above disclosed technical content should be regarded as equivalent valid embodiments and fall within the scope of protection of the technical solution of the present application.

Claims

1. A three-dimensional split-flow debris flow blocking structure suitable for low-gravity environment, characterized in that: It is formed by arranging a number of retaining piles; The retaining pile includes a retaining assembly and a return flow assembly; the retaining assemblies are multiple and vertically connected to form a pile; the return flow assembly is one and is installed on the top of the pile; the retaining assembly has a tip facing the direction of impact of the debris flow, and the return flow assembly is bent in the direction of the debris flow; The blocking assembly comprises a horizontal diversion pile (1) and a vertical diversion rod (2); The horizontal diversion pile (1) comprises a horizontal diversion surface (1-1), a diversion rod slot (1-2), and a diversion rod reinforcement mortise (1-3); the diversion rod slot (1-2) is provided in plurality and arranged in multiple layers on the horizontal diversion surface (1-1), with each layer being staggered; the diversion rod reinforcement mortise (1-3) is located in the diversion rod slot (1-2); Wherein, the vertical diverter rod (2) comprises a vertical diverter surface (2-1) and a diverter rod reinforcement tenon (2-2); The horizontal diversion pile (1) and the vertical diversion rod (2) are connected via a diversion rod reinforcement tenon (2-2) and a diversion rod reinforcement mortise (1-3); The vertical diverter rod (2) has a vertical diverter surface (2-1) at the front end of the rod in the form of a triangular prism with its sharp corner facing downwards; the diverter rod reinforcement tenon (2-2) at the rear end of the rod is in the form of a cube with an upwardly protruding tenon at the end to facilitate the mutual cooperation of the diverter rod reinforcement mortise (1-3); During installation, the vertical diverter rod (2) is inserted into the diverter rod slot (1-2); when the debris flow impacts the blocking structure, as the particles climb, the vertical diverter rod (2) is slightly lifted up by the particles, and the diverter rod reinforcement tenon (2-2) and the diverter rod reinforcement mortise (1-3) are engaged with each other.

2. The three-dimensional flow-dividing debris flow blocking structure suitable for low-gravity environment according to claim 1, characterized in that: The horizontal diversion pile (1) is a pentagonal prism, with its sharp corner facing the impact direction of the debris flow.

3. The three-dimensional flow-dividing debris flow blocking structure suitable for low-gravity environment according to claim 1, characterized in that: The diversion rod clamping groove (1-2) of the horizontal diversion pile (1) is divided into two layers, upper and lower, and the two layers are staggered with each other.

4. The three-dimensional flow-dividing debris flow blocking structure suitable for low-gravity environment according to claim 1, characterized in that: The reflux component includes a top reflux curved surface (3); The top return flow curved surface (3) has a curved cross section, a bottom portion of which is vertically fixed to the top portion of the horizontal diversion pile (1), and a top portion of which is bent toward the incoming direction of the debris flow.

5. The three-dimensional flow-dividing debris flow blocking structure suitable for low-gravity environment according to claim 4, characterized in that: The cross section of the top reflow curved surface (3) is a quarter of a circle.

6. The three-dimensional flow-dividing debris flow blocking structure suitable for low-gravity environment according to claim 1, characterized in that: The blocking structure includes at least two rows of blocking piles, the blocking piles in the rear row are higher than those in the front row, and the two rows of blocking piles are staggered front to back.

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