Detachable passive protection net combined pile

Abstract

The application provides a detachable passive protection net combined pile, which comprises an anti-slide pile body, an underground anchoring section of the anti-slide pile, a supporting rope, a pressure relief ring, a passive protection net, a bolt and a clasp. The anti-slide pile body is in a "D" shape in cross section, which is convenient for combination with the passive protection net. The underground anchoring section is in a rectangular shape in cross section, and has greater bending stiffness and stronger shearing capacity. When working, after the rockfall impacts the net body, the energy is transmitted to the supporting rope, the plastic deformation of the pressure relief ring is driven to consume energy, and the remaining force is transmitted to the foundation through the anchoring section of the anti-slide pile. The problems that the single pile structure cannot effectively intercept the solid debris in the debris flow and the net body is easily broken due to deformation out of limits or local stress concentration when the passive protection net faces the impact of high-energy debris flow are solved. Meanwhile, the passive protection net and the pile body are connected by the detachable bolt, the corresponding components can be separately detached for replacement or maintenance, the overall structure does not need to be destructively disassembled, and the maintenance cost and material waste are reduced.

Description

Technical Field

[0001] This application relates to the field of disaster prevention and mitigation, specifically a debris flow protection facility, and more particularly to a detachable passive protective netting combination pile. Background Technology

[0002] In mountainous areas, valleys, and other regions with complex geological conditions, natural disasters such as debris flows and landslides are frequent, posing a serious threat to surrounding roads, buildings, farmland, and the safety of people's lives and property. Therefore, taking effective engineering measures to mitigate such disasters has become a crucial issue for ensuring regional safety. Currently, in debris flow and other disaster prevention engineering, while anti-slide piles and anchor piles can reinforce slopes through anchoring, they cannot effectively intercept solid debris in debris flows when used alone. Traditional passive protection nets absorb impact kinetic energy through components such as wire rope nets, steel columns, and pressure-reducing rings. However, during high-energy debris flow impacts, the netting is prone to breakage due to excessive deformation or localized stress concentration. Furthermore, existing passive protection net and pile combination structures still have some shortcomings in practical applications. In terms of structural assembly, the connection between the protection net and the piles often uses welding, binding, or specialized complex connectors. These methods increase construction difficulty and cost, and if the protection net or piles are damaged and need replacement later, disassembly is extremely difficult, often requiring destructive removal of the connection points, resulting in material waste and increased secondary construction costs.

[0003] In summary, existing passive protection nets and anti-slide pile structures each have their own shortcomings in protection, and there are also some problems in assembly, disassembly, and later maintenance. Therefore, the development of a detachable passive protection net combination is of great practical significance. Summary of the Invention

[0004] The purpose of this invention is to provide a detachable passive protective netting combination pile to solve the problems of debris flow protection and assembly / replacement.

[0005] The detachable passive protection netting combination pile includes: anti-slide pile body 1, anti-slide pile underground anchoring section 2, support rope 3, pressure relief ring 4, passive protection netting 5, bolt 6, and buckle 7.

[0006] The detachable passive protection netting composite pile includes a pile body and a netting body. The pile body comprises an anti-slide pile shaft 1 and an underground anchoring section 2, which is a prefabricated integral structure. The netting body includes a support rope 3, a pressure-reducing ring 4, a passive protection netting 5, and a buckle 7. The pile body and the netting body are connected by detachable bolts 6.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] (1) The cross section of the anti-slide pile is "D" shaped, which is convenient to combine with the passive protection net and make the stress evenly distributed along the curved surface; the cross section of the underground anchoring section is rectangular, which has greater bending stiffness and can effectively reduce the bending deformation of the pile body in the underground section. Moreover, the shear resistance at the intersection of the straight edges of the rectangular cross section is stronger, which can better resist the damage of the soil shear force to the pile body.

[0009] (2) This structure combines passive protection nets with anti-slide piles, which solves the problem that a single pile structure cannot effectively intercept solid debris in debris flows, and also solves the problem that the passive protection net is prone to breakage due to deformation or local stress concentration when facing high-energy debris flow impacts.

[0010] (3) The support rope in the structure forms a rigid frame at the top of the net, anchors the edge of the net, ensures the flatness of the net surface, and makes the impact load of falling rocks evenly distributed to the entire area of ​​the net; the pressure relief ring is connected in series with the support rope. When the impact of falling rocks causes the support rope to stretch, the pressure relief ring actively absorbs the impact energy through its own deformation (or breakage), and converts the instantaneous peak tension into a slow deformation energy dissipation process.

[0011] (4) Since the protective netting and the piles are connected by detachable bolts, when the protective netting is partially damaged or the connection part of the piles is damaged, the corresponding parts can be disassembled and replaced or repaired separately without the need for destructive disassembly of the overall structure, thus reducing maintenance costs and material waste. At the same time, the disassembly and assembly operations during regular maintenance are more convenient, which helps to detect and deal with potential hazards in a timely manner and extend the service life of the overall structure.

[0012] This utility model is simple to install, convenient to use, has a reliable connection method, and reasonable stress distribution. The materials used in this application are common and readily available, and can be widely promoted and used. Attached Figure Description

[0013] The features of this utility model will become more apparent when the following figures are consulted.

[0014] Figure 1 This is a complete 3D diagram.

[0015] Figure 2 This is a front view of the structure.

[0016] Figure 3 This is a diagram showing the connection between the piles and the mesh.

[0017] Figure 4 Diagram showing the connection between the support rope and the pressure relief ring and the net.

[0018] In the diagram: 1. Anti-slide pile body; 2. Underground anchorage section of anti-slide pile; 3. Support rope; 4. Pressure relief ring; 5. Passive protection net; 6. Bolt; 7. Buckle.

[0019] like Figure 3As shown, the anti-slide pile body 1 and the underground anchorage section 2 of the anti-slide pile are a prefabricated integral structure. Detailed Implementation

[0020] To make the technical means, features, purpose and effects of this utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figures 1-4 As shown, this utility model provides a design scheme: a detachable passive protection net combination pile includes an anti-slide pile body 1, an underground anchoring section of the anti-slide pile 2, a support rope 3, a pressure-reducing ring 4, a passive protection net 5, a bolt 6, and a buckle 7.

[0022] In this implementation case, the anti-slide pile body 1 is made of precast concrete, and the surface resisting debris flow is semi-circular, facilitating integration with the passive protection net 5. The underground anchorage section 2 of the anti-slide pile has a rectangular cross-section and is deeply embedded in the foundation. Bolt holes are pre-drilled in the pile body; the support rope is made of high-strength steel rope, initially tensioned to a taut state during installation, and the pressure-reducing ring 4 is connected in series with the support rope 3 and limited by the buckle 7 to ensure that it can deform freely along the axial direction under stress without excessive deformation; the passive protection net 5 adopts a polygonal mesh structure, with its upper edge tied and fixed to the support rope 3 to keep the net flat and wrinkle-free. During installation, the underground anchorage section is first buried in the foundation pit to fix the pile body, and then the support rope 3, pressure-reducing ring 4, and passive protection net 5 are connected in sequence, and the support rope and the pile body can be detached by bolt connection. During operation, after the falling rocks impact the net body, the energy is transferred to the support rope 3, causing the pressure-reducing ring 4 to plastically deform and dissipate energy, and the remaining force is transferred from the anti-slide pile to the foundation through the anchorage section. This design, through its modular and detachable structure, solves the problem of inconvenient maintenance associated with traditional fixed connections, significantly improving the reusability and economy of the protection system.

[0023] The technical solutions provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the methods and core ideas of this application. For those skilled in the art, modifications and improvements can be made to this application, and these modifications and improvements are also included within the scope of protection of the claims of this application.

Claims

1. A detachable passive protective netting combination pile, characterized in that: It includes piles and netting; the piles include the anti-slide pile body and the underground anchorage section of the anti-slide pile; the netting includes support ropes, pressure-reducing rings, passive protection netting, and buckles; the piles and netting are connected by detachable bolts.

2. The detachable passive protection netting combination pile according to claim 1, characterized in that: The anti-slide pile has a "D" shaped cross section; the underground anchorage section has a rectangular cross section.

3. The detachable passive protection netting combination pile according to claim 1, characterized in that: The netting is equipped with support ropes and pressure-reducing rings at both the top and bottom, with the pressure-reducing rings located at the end closest to the pile.

4. The detachable passive protection netting combination pile according to claim 1, characterized in that: The pressure-reducing ring is connected in series with the support rope, and the pressure-reducing ring is limited by a buckle.

Images