A reinforced pad for improving the impact resistance of rocket launch pads

Abstract

This utility model relates to the field of impact resistance technology for rocket launch pads, specifically a reinforced pad for improving the impact resistance of rocket launch pads. It includes a deformable energy-absorbing thin layer, a hollow lattice support layer, and a damping rubber buffer cover layer arranged from top to bottom. The deformable energy-absorbing thin layer, the hollow lattice support layer, and the damping rubber buffer cover layer are all circular and concentrically arranged, with their centers located at the impact center of the rocket launch. The deformable energy-absorbing thin layer primarily absorbs impact energy, reducing the destructive impact on the site; the hollow lattice support layer mainly serves as a stress diffusion layer, compensating for insufficient site bearing capacity; the damping rubber buffer cover layer primarily buffers the impact force on the launch pad and suppresses the fragmentation of local pavement debris by covering it. This reinforced pad for improving the impact resistance of rocket launch pads has the advantages of convenient and quick implementation, strong impact resistance, and minimal damage to the site.

Description

Technical Field

[0001] This utility model relates to the field of impact resistance technology for rocket launch pads, and in particular to a reinforced pad for improving the impact resistance of rocket launch pads. Background Technology

[0002] During rocket launch, the rocket tube exerts a powerful impact load on the launch pad, requiring the pad's load-bearing capacity to meet specific requirements. The most critical control indicator is the pad settlement at the impact center. Predicting the pad's load-bearing capacity and selecting a suitable launch pad becomes a prominent problem that needs to be solved. Therefore, studying the load-bearing capacity of the launch pad under impact loads is of great significance. The impact load curve consists of three stages: rapid loading, short-term sustaining, and rapid unloading.

[0003] For sites with low soil backfill modulus, especially low-grade pavements, it is necessary to be wary of soft soil under a hard surface layer. This needs to be confirmed through site investigation and testing (such as geophysical exploration). In case of emergency launch, a steel plate reinforcement scheme should be used to ensure safety. Utility Model Content

[0004] The purpose of this invention is to provide a robust pad for improving the impact resistance of rocket launch pads, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a robust pad for improving the impact resistance of rocket launch pads, comprising a deformable energy-absorbing thin layer, a hollow box lattice support layer, and a damping rubber buffer cover layer arranged from top to bottom. The deformable energy-absorbing thin layer, the hollow box lattice support layer, and the damping rubber buffer cover layer are all circular and concentrically arranged, with their centers located at the impact center of the rocket launch.

[0006] Preferably, the deformable energy-absorbing thin layer includes thin steel plates disposed at the top and bottom, and multiple radial cosine steel bars and multiple latitudinal cosine steel bars are interwoven between the upper and lower thin steel plates, and the multiple radial cosine steel bars and the multiple latitudinal cosine steel bars are respectively fixedly connected to the upper and lower thin steel plates.

[0007] Preferably, the empty box lattice support layer includes a top plate and a bottom plate, with a plurality of longitudinal lattice ribs and a plurality of transverse lattice ribs connected to each other between the top plate and the bottom plate, and the plurality of longitudinal lattice ribs and the plurality of transverse lattice ribs being fixedly connected to the top plate and the bottom plate respectively.

[0008] Preferably, the damping rubber buffer cover layer includes aramid fiber tear-resistant layers disposed at the top and bottom, and damping rubber is disposed between the upper and lower aramid fiber tear-resistant and abrasion-resistant layers.

[0009] Compared with the prior art, the beneficial effects of this utility model are: The reinforced pad for improving the impact resistance of rocket launch pads, as provided in this embodiment, consists of three layers from top to bottom: a deformable energy-absorbing thin layer, a hollow lattice support layer, and a damping rubber buffer cover layer. The deformable energy-absorbing thin layer mainly absorbs impact energy, reducing the destructive impact on the site; the hollow lattice support layer is mainly a stress diffusion layer, compensating for insufficient site bearing capacity; and the damping rubber buffer cover layer mainly buffers the impact force on the launch pad and suppresses the fragmentation of local pavement debris by covering it. This reinforced pad for improving the impact resistance of rocket launch pads has the advantages of convenient and quick implementation, strong impact resistance, and minimal damage to the site. Attached Figure Description

[0010] Figure 1 A schematic diagram of the structure of the reinforced pad for improving the impact resistance of rocket launch pads provided by this utility model; Figure 2 A cross-sectional view of the deformable energy-absorbing thin layer of the reinforced pad used to improve the impact resistance of rocket launch pads according to this utility model. Figure 3 This utility model provides a schematic diagram of the radial cosine steel bars and the lateral cosine steel bars of the reinforced pad for improving the impact resistance of rocket launch pads. Figure 4 A cross-sectional view of the hollow lattice support layer of the reinforced pad for improving the impact resistance of rocket launch pads provided by this utility model. Figure 5 A schematic diagram of the longitudinal and transverse lattice ribs of the reinforced pad for improving the impact resistance of rocket launch pads provided by this utility model.

[0011] In the figure: 1. Deformable energy-absorbing thin layer; 11. Thin steel plate; 12. Radial cosine steel bar; 13. Weft cosine steel bar; 2. Empty box lattice support layer; 21. Top plate; 22. Bottom plate; 23. Longitudinal lattice rib; 24. Transverse lattice rib; 3. Damping rubber buffer cover layer. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Figure 1This is a structural schematic diagram of a reinforced pad for improving the impact resistance of a rocket launch pad, provided as an embodiment of the present invention. Figure 1 As shown, the embodiment of this utility model provides a reinforced pad for improving the impact resistance of a rocket launch pad. The reinforced pad for improving the impact resistance of a rocket launch pad may include a deformable energy-absorbing thin layer 1, an empty box grid support layer 2, and a damping rubber buffer cover layer 3 arranged from top to bottom. The deformable energy-absorbing thin layer 1, the empty box grid support layer 2, and the damping rubber buffer cover layer 3 are all circular and concentrically arranged, with their centers located at the impact center of the rocket launch.

[0014] The reinforced pad for improving the impact resistance of rocket launch pads, as provided in this embodiment, consists of three layers from top to bottom: a deformable energy-absorbing thin layer 1, a hollow lattice support layer 2, and a damping rubber buffer cover layer 3. Construction proceeds sequentially from bottom to top. First, the work site is cleared, removing any protruding objects such as stones. The damping rubber buffer cover layer 3 is then laid with the impact center as the center. On top of this, the hollow lattice support layer 2 is laid with the impact center as the center, and finally, the deformable energy-absorbing thin layer 1 is laid with the impact center as the center. The three layers are positioned as horizontally as possible. This reinforced pad for improving the impact resistance of rocket launch pads has the advantages of convenient and quick implementation, strong impact resistance, and minimal damage to the site. Figure 2 A cross-sectional view of the deformable energy-absorbing thin layer of the reinforced pad used to improve the impact resistance of rocket launch pads according to this utility model. Figure 3 This utility model provides a schematic diagram of the radial and lateral cosine steel bars of a reinforced pad for improving the impact resistance of rocket launch pads. (See diagram for reference.) Figure 2 and Figure 3 As shown, in an embodiment of this utility model, the deformable energy-absorbing thin layer 1 includes thin steel plates 11 disposed at the top and bottom. Between the upper and lower thin steel plates 11, there are multiple radial cosine steel bars 12 and multiple latitudinal cosine steel bars 13 interwoven with each other. The multiple radial cosine steel bars 12 and multiple latitudinal cosine steel bars 13 are respectively fixedly connected to the upper and lower thin steel plates 11.

[0015] The robust pad provided by this utility model for improving the impact resistance of rocket launch site is formed by multiple radial cosine steel bars 12 and multiple latitudinal cosine steel bars 13 of the deformable energy-absorbing thin layer 1 deforming when impacted, thereby absorbing and dissipating impact energy and reducing the destructiveness of the impact on the site.

[0016] Figure 4 A cross-sectional view of the hollow lattice support layer of the reinforced pad for improving the impact resistance of rocket launch pads provided by this utility model. Figure 5This diagram illustrates the longitudinal and transverse lattice ribs of the reinforced pad used to improve the impact resistance of rocket launch pads, as provided by this utility model. Figure 2 and Figure 3 As shown, in an embodiment of this utility model, the empty box lattice support layer 2 includes a top plate 21 and a bottom plate 22. A plurality of longitudinal lattice ribs 23 and a plurality of transverse lattice ribs 24 are provided between the top plate 21 and the bottom plate 22 and are connected to each other. The plurality of longitudinal lattice ribs 23 and the plurality of transverse lattice ribs 24 are fixedly connected to the top plate 21 and the bottom plate 22 respectively.

[0017] The robust pad provided by this utility model for improving the impact resistance of rocket launch site is supported by multiple longitudinal lattice ribs 23 and multiple transverse lattice ribs 24 of the empty box lattice support layer 2, which serves as a diffusion layer for impact stress and compensates for insufficient site bearing capacity.

[0018] In an embodiment of this utility model, the damping rubber buffer cover layer 3 includes aramid fiber tear-resistant layers disposed at the top and bottom, and damping rubber is disposed between the upper and lower aramid fiber tear-resistant and abrasion-resistant layers.

[0019] The robust pad provided by this utility model for improving the impact resistance of rocket launch pads buffers the impact force on the launch pad through a damping rubber buffer cover layer 3, and suppresses the splashing of local pavement fragments through the cover.

[0020] Working Principle: The reinforced pad used to improve the impact resistance of rocket launch pads is constructed step-by-step from bottom to top. First, the work site is cleared, removing protruding objects such as stones from the pavement. A damping rubber buffer cover layer 3 is laid with the impact center as the center. On top of this, a hollow lattice support layer 2 is laid with the impact center as the center. Finally, a deformable energy-absorbing thin layer 1 is laid with the impact center as the center. The three layers are positioned as horizontally as possible. The deformable energy-absorbing thin layer 1 primarily absorbs impact energy, reducing the destructive impact on the site. The hollow lattice support layer 2 mainly serves as a stress diffusion layer, compensating for insufficient site bearing capacity. The damping rubber buffer cover layer 3 primarily buffers the impact force on the launch pad and suppresses the fragmentation of broken pavement debris by covering it. This reinforced pad used to improve the impact resistance of rocket launch pads has the advantages of convenient and quick implementation, strong impact resistance, and minimal damage to the site.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A strongback for improving the impact resistance of a launch pad for a rocket, characterized in that, It includes a deformable energy-absorbing thin layer (1), an empty box grid support layer (2), and a damping rubber buffer cover layer (3) arranged from top to bottom. The deformable energy-absorbing thin layer (1), the empty box grid support layer (2), and the damping rubber buffer cover layer (3) are all circular and concentrically arranged, with their centers located at the impact center of the rocket launch.

2. The reinforced pad for improving the impact resistance of a launch pad of a rocket launch site according to claim 1, wherein The deformable energy-absorbing thin layer (1) includes thin steel plates (11) disposed at the top and bottom. Between the two thin steel plates (11) are multiple radial cosine steel bars (12) and multiple latitudinal cosine steel bars (13) that are interwoven with each other. The multiple radial cosine steel bars (12) and the multiple latitudinal cosine steel bars (13) are respectively fixedly connected to the two thin steel plates (11).

3. The reinforced pad according to claim 2, wherein, The empty box lattice support layer (2) includes a top plate (21) and a bottom plate (22). A plurality of longitudinal lattice ribs (23) and a plurality of transverse lattice ribs (24) are connected to each other between the top plate (21) and the bottom plate (22). The plurality of longitudinal lattice ribs (23) and the plurality of transverse lattice ribs (24) are fixedly connected to the top plate (21) and the bottom plate (22) respectively.

4. The reinforced pad according to claim 3, wherein, The damping rubber buffer cover layer (3) includes aramid fiber tear-resistant layers disposed at the top and bottom, and damping rubber is disposed between the upper and lower aramid fiber tear-resistant and wear-resistant layers.

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