Novel energy absorption protection structure considering dynamic load impact influence and implementation method

Abstract

The invention discloses a novel energy absorption protection structure considering dynamic load impact influence. The novel energy absorption protection structure comprises a loading module, a dust falling module, a connecting module, a flexible protection module and an energy absorption protection module. The loading module is of a double-cavity steel-plastic structure with an upper opening, the dust falling module comprises a steel bar mesh, polyethylene water bags are fixed to the intersection points of steel bars, dust falling solvents are contained in the water bags, the flexible protection module can select proper flexible protection materials according to construction requirements, and the connecting module is composed of metal hinges, metal duckbilled buckles and metal ring hooks. The energy absorption protection module comprises an energy absorption structure, a metal plate and a metal spring. The invention further provides an implementation method of the novel energy absorption protection structure considering the dynamic load impact influence. The problem that a traditional protection structure is insufficient in dynamic load impact protection capacity is solved, a novel energy absorption protection structure is adopted, the protection structure is optimized in function and can be repeatedly used, and harm caused by dynamic load impact is remarkably reduced.

Description

Technical Field

[0001] The present invention relates to the field of engineering protection, and in particular to a novel energy-absorbing protection structure and an implementation method thereof that takes into account the influence of dynamic load impact. Background Art

[0002] Currently, coal mines generally use anchor bolts, hydraulic supports, metal supports, and shotcrete for protection. However, with the advancement of society, the construction environment has become more complex, and safety and environmental protection requirements have gradually increased. Dust, rock bursts, and roof collapses generated during construction pose a serious threat to the environment and safety. Research has shown that rock bursts and roof collapses have become one of the main factors leading to casualties and property losses. Especially in high-in-situ stress environments, rock bursts and roof collapses generate a large amount of flying rocks and a strong impact, posing a serious threat to human safety.

[0003] Traditional protection methods generally rely on the inherent strength of the material to resist dynamic load impacts. However, this support method is prone to sudden failure when dealing with disasters such as dynamic load impacts, which are characterized by instantaneous, high-energy release, and strong destructiveness. This results in poor protection and fails to achieve dust reduction goals. Therefore, there is an urgent need to develop a new protective structure and construction technology that can effectively resist dynamic load impacts while also providing dust reduction capabilities. Summary of the Invention

[0004] In order to solve the current situation in which the existing technology cannot effectively deal with dynamic load impact and construction dust during construction, the present invention provides a new energy-absorbing protection structure and implementation method that takes into account the influence of dynamic load impact, in order to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect.

[0005] The technical solution adopted by the present invention to solve its technical problem is: A new energy-absorbing protection structure that takes into account the impact of dynamic loads includes multiple loading modules, dust reduction modules, connection modules, flexible protection modules and energy-absorbing protection modules.

[0006] Several staggered grooves are provided on the inner wall of the loading module, and the dust reduction module is installed in the grooves. The loading module is provided with a first cavity and a second cavity from the inside to the outside. Both cavities are arranged vertically. A flexible protection module is provided in the first cavity, and an energy absorption protection module is provided in the second cavity.

[0007] The dust reduction module includes a steel mesh and several water bags filled with dust reduction solvent. The steel mesh is arranged in the groove, and the water bags are fixed at some intersections of the steel mesh.

[0008] The flexible protective module is composed of one or more flexible protective materials.

[0009] The energy absorption protection module includes an energy absorption structure made of metal material, a first metal plate and a metal spring.

[0010] The energy absorbing structure includes a circular outer tube and an embedded tube at the center of the outer tube. The embedded tube and the outer tube are coaxially arranged with the same length, and the length is less than the width of the second cavity. The cross-section of the embedded tube is polygonal, and a number of ribs are connected between the outer wall of the embedded tube and the inner wall of the outer tube.

[0011] The first metal plates include two plates that are arranged opposite to each other. Several energy-absorbing structures are evenly distributed on one of the first metal plates. One end of a metal spring is fixed on the other first metal plate. The other end of the first metal spring extends into the embedded tube of the energy-absorbing structure. The free length of the metal spring is greater than the width of the second cavity. The two first metal plates are pre-connected together.

[0012] The energy absorption and protection module is an important invention of this application, which can effectively prevent impact and absorb energy to meet construction needs.

[0013] Adjacent loading modules are connected via connecting modules.

[0014] In order to better adapt to different working conditions, the loading module can be made into a rectangular or semicircular arc structure as needed.

[0015] Preferably, when the loading module is a semicircular arc structure, a first arc cavity and a second arc cavity are provided from the inside to the outside, and the centers of the loading module and the two arc cavities face the same side and the centers of the loading module and the two arc cavities share a common point.

[0016] As a further preferred solution, the spacing between the two cavities is equal to the distances between them and the inner and outer walls of the loading module, so as to optimize the force on the loading module and improve the overall impact resistance.

[0017] The loading module is made of a steel wire cage and polyvinyl chloride. Its inner wall is provided with grooves arranged in a staggered pattern, horizontally and vertically. The grooves are all over the inner wall.

[0018] The water bags are fixed at the intersection of the steel mesh in a one-to-one manner to achieve the maximum dust reduction effect.

[0019] In one embodiment, the energy-absorbing structure's embedded tubes are equilaterally octagonal, with vertical ribs at the midpoints of each side connecting to the circular outer tube. This not only improves the strength of the embedded tubes but also provides good support for the ribs, facilitating the recovery of the energy-absorbing structure after construction.

[0020] In one embodiment, the connection module includes a metal hinge, a metal duckbill buckle, a metal ring hook and two second metal plates; The two second metal plates are respectively fixed to the butt joint surfaces at both ends of the loading module; The metal hinge is divided into two parts and is respectively fixed on the two second metal plates. The metal duckbill buckle and the metal ring hook are respectively fixed on the two second metal plates.

[0021] The flexible protective module can be composed of self-adhesive geotextile and steel wire skeleton rubber composite roll. Of course, different flexible protective materials can also be selected according to construction needs. In order to ensure that the flexible protective material can fully exert its protective effect, polyurethane foam can be used to fill and tighten the flexible protective material. At the same time, the polyurethane foam itself has a shock-absorbing and buffering effect and can also be used as a flexible protective material.

[0022] The present invention also provides a method for implementing a new energy-absorbing protective structure that takes into account the impact of dynamic loads. The method employs the above-mentioned new energy-absorbing protective structure and specifically includes the following technical steps: Step 1: Install the energy absorption protection module A. Install the energy absorption protection module: clean the dust and debris in the second cavity and install the energy absorption protection module correctly; B. Filling with polyurethane foam: When the energy absorption protection module cannot be tightly attached to the inner wall of the second cavity, polyurethane foam is filled between the first metal plate and the inner wall of the second cavity to fix the energy absorption protection module; Step 2: Install the flexible protection module A. Install the flexible protection module: Clean the dust and debris in the first cavity and install the flexible protection module correctly; B. Filling with polyurethane foam: When the flexible protective module cannot be tightly attached to the inner wall of the first cavity, polyurethane foam is filled between the flexible protective module and the inner wall of the first cavity or between the flexible protective materials to fix the flexible protective module; Step 3: Install the dust suppression module A. Install the steel mesh: Install the steel mesh in the dust suppression module into the grooves pre-opened on the inner wall of the loading module; B. Install the water bag: Fix the water bag in the dust suppression module on the steel mesh; Step 4: Assemble the loading module A. Assemble loading modules: After the energy absorption protection module, flexible protection module and dust suppression module in all loading modules are installed, use metal hinges to flexibly connect adjacent loading modules to make them movable; Step 5: Install the loading module A. Surface treatment of the object to be protected: remove the gravel on the surface of the object to be protected and polish the surface of the object to be protected; B. Install the loading module: Install the movable loading module on the object to be protected. If it is used on a cylindrical bridge pier, it should be fixed by connecting the metal duckbill buckle and the metal ring hook; Step 6: Recover the new energy-absorbing protection module A. After the construction is completed, the energy absorption and protection modules are recovered and reused.

[0023] Compared with the prior art, the present invention has the following benefits The present invention adopts an energy-absorbing structure to effectively prevent impact and absorb energy. In addition, the present invention adds a metal plate on this basis to further disperse the impact force, and cooperates with the metal spring to further improve the protection capability of the present invention to meet construction needs.

[0024] The loading module of the present invention has a certain elastic-plastic deformation ability and can effectively resist dynamic load impact. At the same time, the dust reduction module arranged on the inner wall of the loading module has a protective effect on the one hand, and on the other hand, the dynamic load impact destroys the water bag to release the dust reduction solvent to achieve a dust reduction effect.

[0025] The present invention adopts a metal spring and an energy-absorbing structure to cooperate with each other. The length of the energy-absorbing structure is shorter than the width of the second cavity of the loading module. One end of the metal spring is fixed on the metal plate, and the other end extends into the embedded tube of the energy-absorbing structure. The original length of the spring is greater than the width of the second cavity. After installation, the spring is in a compressed state. When impacted, the reaction force generated by the compression of the spring offsets part of the impact force, and the spring is compressed and deformed to continue to offset part of the impact force. After being compressed to a certain length, the energy-absorbing structure participates in the work to jointly offset the impact force. When the impact cannot cause the energy-absorbing protection module to completely lose its function, the energy-absorbing protection module can be recovered and evaluated to determine whether it can be reused.

[0026] The loading module of this invention features a dual-cavity structure with an upper opening. The cavities are used to house both the energy-absorbing and protective modules and the flexible protective modules. This allows for the selection of different protective materials based on construction needs. Furthermore, when the flexible coiled material and the loading module don't fit snugly, polyurethane foam can be added to provide firmness, cushioning, and energy absorption, achieving the desired protective effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the present invention.

[0028] Figure 2 This is a schematic diagram of the loading module of the present invention.

[0029] Figure 3 Schematic diagram of the dust reduction module of the present invention Figure 4 Schematic diagram of the metal hinge of the present invention.

[0030] Figure 5 It is a schematic diagram of the metal duckbill buckle and metal ring hook of the present invention.

[0031] Figure 6 This is a schematic diagram of the flexible protection module of the present invention.

[0032] Figure 7 This is a schematic diagram of the energy absorption and protection module of the present invention.

[0033] Figure 8 Schematic diagram of the energy absorption structure of the present invention.

[0034] Figure 9This is a partial cross-sectional diagram of the energy absorption protection module of the present invention. Figure 10 This is the flow chart of the arc loading module of the present invention Figure 11 This is the flow chart of the arc energy absorption protection module of the present invention Figure 12 It is a construction flow chart of the present invention.

[0035] Figure numerals: 1. Loading module; 11. Steel wire cage; 12. Polyvinyl chloride; 2. Dust suppression module; 21. Steel mesh; 22. Water bag; 3. Connection module; 31. Metal hinge; 32. Metal duckbill buckle; 33. Metal ring hook; 34. Second metal plate; 4. Flexible protection module; 41. Self-adhesive geotextile; 42. Steel wire skeleton rubber composite membrane; 5. Energy absorption protection module; 51. Energy absorption structure; 52. First metal plate; 53. Metal spring. DETAILED DESCRIPTION

[0036] See also Figure 1 、 Figure 2 A new energy-absorbing protection structure that takes into account the impact of dynamic loads includes multiple loading modules 1, dust reduction modules 2, connection modules 3, flexible protection modules 4 and energy-absorbing protection modules 5.

[0037] Among them, the loading module 1 can be designed in a corresponding shape according to the shape of the object to be protected. For example, a square object can be designed with four planar structure loading modules 1 connected end to end, and a circular pier structure can be designed with two or more arc structure loading modules 1 connected end to end.

[0038] See also Figure 1 This embodiment is introduced by taking roof support during coal mine excavation as an example.

[0039] The loading module 1 is a rectangular structure, and is provided with a first cavity and a second cavity from the inside to the outside, and both cavities are arranged vertically.

[0040] Preferably, a flexible protection module 4 is provided in the first cavity, and an energy absorption protection module 5 is provided in the second cavity.

[0041] Holes are opened in the loading module 1, the flexible protection module 4 and the energy absorbing protection module 5 at the positions corresponding to the middle holes of the metal spring 53. The holes pass through the loading module 1, the flexible protection module 4 and the energy absorbing protection module 5. The number of holes is determined according to construction needs.

[0042] Through the dual protection module of flexible protection first and energy absorption protection second, the dynamic load impact is borne at multiple levels to achieve the effect of safety protection.

[0043] As a further preferred solution, the distance between the two cavities is equal to the distance between them and the inner and outer walls of the loading module 1, so as to further optimize the force of the loading module 1 and improve the overall impact resistance.

[0044] As one embodiment, the loading module 1 is composed of a wire cage 11 and polyvinyl chloride 12 .

[0045] In this embodiment, the diameter of the steel wire is not less than 5 mm, the spacing between each layer of steel wire cages is 50 mm, the spacing between each steel wire in the steel wire cage is 50 mm, and the distance between the outermost steel wire cage and the outermost side of the loading module is not less than 10 mm.

[0046] The inner wall of the loading module 1 is provided with a plurality of staggered grooves, in which the dust reduction modules 2 are installed. As a preferred solution, the grooves are all over the inner wall, and are staggered horizontally and vertically for easy arrangement.

[0047] See also Figure 3 The dust suppression module 2 includes a steel mesh 21 and several water bags 22 filled with a dust suppression solvent. The steel mesh 21 is arranged in the groove. The water bags 22 are made of polyethylene and fixed at some intersections of the steel mesh 21. Preferably, the water bags 22 are fixed at the intersections of the steel mesh 21 in a one-by-one manner to achieve the maximum dust suppression effect.

[0048] As one embodiment, the diameter of the steel bars of the steel mesh 21 is not less than 5 mm, and the spacing between each steel bar in the horizontal and vertical directions is 150 mm.

[0049] The loading module of the present invention adopts a steel-plastic composite material with a certain elastic-plastic deformation ability, which can resist the flying stones and shock waves generated by dynamic load impact. At the same time, the dust reduction module arranged on the inner wall of the loading module plays a protective effect on the one hand, and on the other hand, the dynamic load impact breaks the water bag to release the dust reduction solvent to play a dust reduction effect. See also Figure 6 The flexible protection module 4 is composed of one or more flexible protection materials and is a replaceable module. Different flexible protection materials can be selected according to construction needs.

[0050] The flexible protective module 4 in this embodiment is composed of a self-adhesive geotextile 41 and a steel wire skeleton rubber composite coil 42. Of course, different flexible protective materials can also be selected according to construction needs. In order to ensure that the flexible protective material can fully exert its protective effect, polyurethane foaming agent can be used to fill and tighten the flexible protective material. At the same time, the polyurethane foaming agent itself has a shock-absorbing and buffering effect and can also be used as a flexible protective material.

[0051] Specifically, in this embodiment, the polymer protective self-adhesive geotextile 41 is made of pure white high-density polyethylene (HDPE) raw material in a molten state by vacuum molding, and the steel wire skeleton rubber composite coil is a composite coil formed by casting styrene-butadiene rubber with multiple layers of steel wire mesh as the skeleton.

[0052] See also Figure 7-Figure 9 The energy absorption protection module 5 includes an energy absorption structure 51 made of metal material, a first metal plate 52 and a metal spring 53.

[0053] The energy absorbing structure 51 includes a circular outer tube and an embedded tube in the center of the outer tube. The embedded tube and the outer tube are coaxially arranged with the same length, and the length is less than the width of the second cavity. The cross-section of the embedded tube is polygonal, and a number of ribs are connected between the outer wall of the embedded tube and the inner wall of the outer tube.

[0054] The first metal plates 52 include two plates that are arranged opposite to each other. A plurality of energy absorbing structures 51 are evenly distributed on one of the first metal plates 52 . One end of a metal spring 53 is fixed on the other first metal plate 52 , and the other end of the metal spring 53 extends into the embedded tube of the energy absorbing structure 51 .

[0055] In this embodiment, the energy absorbing structure 51 and the first metal plate 52 on which it is located are integrally cast, and the metal spring 53 and the first metal plate 52 on which it is located are connected by welding to improve the impact resistance.

[0056] As a preferred solution, the free length of the metal spring 53 is greater than the width of the second cavity, so that the metal spring 53 is in a compressed state after the energy absorption protection module 5 is installed in the second cavity. The two first metal plates 52 are pre-connected together. The simplest way is to tie ropes at the four sides for pre-connection, so that when the energy absorption protection module 5 is placed in the second cavity, the metal spring 53 will not fall out of the embedded tube.

[0057] After the energy-absorbing protection module 5 is fully placed within the second cavity, the two first metal plates 52, under the elastic force of the metal springs 53, press against the inner walls of the second cavity. When impacted, the reaction force generated by the compression of the metal springs 53 partially offsets the impact force. The deformation of the metal springs 53 further offsets the impact force. After compression reaches a certain length, the energy-absorbing structure 51 joins the effort to counteract the impact force. If the dynamic impact does not completely disable the energy-absorbing protection module 5, the module can be recovered and evaluated for reuse.

[0058] See also Figure 8 As shown, the embedded tube of the energy-absorbing structure 51 in this embodiment is an equilateral octagonal structure, with ribs provided vertically at the midpoints of each side to connect to the circular outer tube. This not only improves the strength of the embedded tube but also provides good support for the ribs, facilitating the recovery of the energy-absorbing structure 51 after construction.

[0059] As one embodiment, the energy absorbing structure 51 has an outer tube thickness of 3 mm and a radius of 100 mm, an inner embedded tube thickness of 3 mm, a distance between two opposite sides of 97 mm, and a rib thickness of 3 mm.

[0060] The energy absorption and protection module 5 is an important invention point of this application. Experiments have proven that this structure can effectively prevent impact and absorb energy. On this basis, the present invention adds a first metal plate to further disperse the impact force, and cooperates with the metal spring 53 to further improve the protection capability of the present invention and adapt to construction needs.

[0061] In this embodiment, adjacent loading modules 1 are connected via a connecting module 3 .

[0062] See also Figure 4 As shown, the connection module 3 in this embodiment includes a metal hinge 31 and two second metal plates 34 .

[0063] The two second metal plates 34 are respectively fixed on the butt joint surfaces at both ends of the loading module 1. As a preferred solution, the second metal plates 34 are embedded before the loading module 1 is injection molded.

[0064] The metal hinge 31 is divided into two parts and is fixed on two second metal plates 34 respectively.

[0065] See also Figure 12 The present invention also provides a method for implementing a new energy-absorbing protective structure that takes into account the impact of dynamic loads. The method employs the above-mentioned new energy-absorbing protective structure and specifically includes the following technical steps: Step 1: Install the energy absorption protection module 5 A. Install the energy absorption protection module 5: Clean the dust and debris in the second cavity and correctly install the energy absorption protection module 5; B. Filling with polyurethane foam: When the energy absorption protection module 5 cannot fit tightly with the inner wall of the second cavity, polyurethane foam is filled between the first metal plate 52 and the inner wall of the second cavity to fix the energy absorption protection module 5; Step 2: Install the flexible protection module 4 A. Installing the flexible protection module 4: Clean the dust and debris in the first cavity and correctly install the flexible protection module 4; B. Filling with polyurethane foam: When the flexible protective module 4 cannot fit tightly against the inner wall of the first cavity, polyurethane foam is filled between the flexible protective module 4 and the inner wall of the first cavity or between the flexible protective materials to fix the flexible protective module 4; Step 3: Install dust suppression module 2 A. Install the steel mesh 21: Install the steel mesh 21 in the dust suppression module 2 in the groove opened in advance on the inner wall of the loading module 1; B. Install the water bag 22: Fix the water bag 22 in the dust suppression module 2 on the steel mesh 21; Step 4: Assemble loading module 1 A. Assembling the loading modules 1: After the energy absorption protection modules 5, the flexible protection modules 4, and the dust reduction modules 2 in all loading modules 1 are installed, adjacent loading modules 1 are movably connected using metal hinges 31 to be in a movable state; Step 5: Install the loading module 1 A. Surface treatment of the object to be protected: remove the gravel on the surface of the object to be protected and drill anchor holes in the top plate; B. Installing the loading module 1: Install the loading module 1 in a movable state on the object to be protected, and use anchor rods to install the loading module on the top plate; Step 6: Recover the new energy-absorbing protection module 5 A. After the construction is completed, if the energy absorbing protection module 5 can be further used, the energy absorbing protection module 5 is recovered and used again.

[0066] See also Figure 10 ,This embodiment is introduced by taking bridge pier blasting as an example.

[0067] To better adapt to the blasting of circular bridge piers, the loading module 1 is an arc structure, with a first arc cavity and a second arc cavity arranged from the inside to the outside. The two cavities are arranged vertically, and the loading module 1 and the centers of the two arc cavities face the same side.

[0068] Preferably, the loading module 1 is a semicircular arc structure, the inner diameter of which is equal to the outer diameter of the pier, and the loading module 1 and the centers of the two arc-shaped cavities are concentric.

[0069] A flexible protection module 4 is provided in the first arc-shaped cavity, and an energy-absorbing protection module 5 is provided in the second arc-shaped cavity.

[0070] Through the dual protection module of flexible protection first and energy absorption protection second, flying rocks can be decelerated at multiple levels to achieve the effect of safety protection.

[0071] As a further preferred solution, the spacing between the two arc-shaped cavities is equal to the distances between them and the inner and outer walls of the loading module 1, so as to further optimize the force of the loading module 1 and improve the overall impact resistance.

[0072] As one embodiment, the loading module 1 is composed of a wire cage 11 and polyvinyl chloride 12 .

[0073] In this embodiment, the diameter of the steel wire is not less than 5 mm, the spacing between each layer of steel wire cages is 50 mm, the spacing between each steel wire in the steel wire cage is 50 mm, and the distance between the outermost steel wire cage and the outermost side of the loading module is not less than 10 mm.

[0074] The inner wall of the loading module 1 is provided with a plurality of staggered grooves, in which the dust reduction modules 2 are installed. As a preferred solution, the grooves are all over the inner wall, and are staggered horizontally and vertically for easy arrangement.

[0075] See also Figure 3The dust suppression module 2 includes a steel mesh 21 and several water bags 22 filled with a dust suppression solvent. The steel mesh 21 is arranged in the groove. The water bags 22 are made of polyethylene and fixed at some intersections of the steel mesh 21. Preferably, the water bags 22 are fixed at the intersections of the steel mesh 21 in a one-by-one manner to achieve the maximum dust suppression effect.

[0076] As one embodiment, the diameter of the steel bars of the steel mesh 21 is not less than 5 mm, and the spacing between each steel bar in the horizontal and vertical directions is 150 mm.

[0077] The loading module of the present invention adopts a steel-plastic composite material with a certain elastic-plastic deformation ability, which can resist the flying stones and shock waves generated during blasting. At the same time, the dust reduction module arranged on the inner wall of the loading module plays a protective effect on the one hand, and on the other hand, it breaks the water bag during blasting to release the dust reduction solvent to play a dust reduction effect. See also Figure 6 The flexible protection module 4 is composed of one or more flexible protection materials and is a replaceable module. Different flexible protection materials can be selected according to construction needs.

[0078] The flexible protective module 4 in this embodiment is composed of a self-adhesive geotextile 41 and a steel wire skeleton rubber composite coil 42. Of course, different flexible protective materials can also be selected according to construction needs. In order to ensure that the flexible protective material can fully exert its protective effect, polyurethane foaming agent can be used to fill and tighten the flexible protective material. At the same time, the polyurethane foaming agent itself has a shock-absorbing and buffering effect and can also be used as a flexible protective material.

[0079] Specifically, in this embodiment, the polymer protective self-adhesive geotextile 41 is made of pure white high-density polyethylene (HDPE) raw material in a molten state by vacuum molding, and the steel wire skeleton rubber composite coil is a composite coil formed by casting styrene-butadiene rubber with multiple layers of steel wire mesh as the skeleton.

[0080] See also Figure 8 、 Figure 9 、 Figure 11 The energy absorption protection module 5 includes an energy absorption structure 51 made of metal material, a first metal plate 52 and a metal spring 53.

[0081] The energy absorbing structure 51 includes a circular outer tube and an embedded tube at the center of the outer tube. The embedded tube and the outer tube are coaxially arranged with the same length, and the length is less than the width of the second arc-shaped cavity. The cross-section of the embedded tube is polygonal, and a number of ribs are connected between the outer wall of the embedded tube and the inner wall of the outer tube.

[0082] The first metal plates 52 include two plates that are arranged opposite to each other. A plurality of energy absorbing structures 51 are evenly distributed on one of the first metal plates 52 . One end of a metal spring 53 is fixed on the other first metal plate 52 , and the other end of the metal spring 53 extends into the embedded tube of the energy absorbing structure 51 .

[0083] In this embodiment, the energy absorbing structure 51 and the first metal plate 52 on which it is located are integrally cast, and the metal spring 53 and the first metal plate 52 on which it is located are connected by welding to improve the impact resistance.

[0084] As a preferred solution, the free length of the metal spring 53 is greater than the width of the second arc-shaped cavity, so that the metal spring 53 is in a compressed state after the energy absorption protection module 5 is installed in the second arc-shaped cavity. The two first metal plates 52 are pre-connected together. The simplest way is to tie ropes at the four sides for pre-connection, so that when the energy absorption protection module 5 is placed in the second arc-shaped cavity, the metal spring 53 will not fall out of the embedded tube.

[0085] After the energy-absorbing protection module 5 is fully placed within the second curved cavity, the two first metal plates 52, under the elastic force of the metal springs 53, press against the inner walls of the second curved cavity. When impacted, the reaction force generated by the compression of the metal springs 53 partially offsets the impact force. The compression and deformation of the metal springs 53 further offset the impact force. After compression reaches a certain length, the energy-absorbing structure 51 joins the effort to counteract the impact force. If the blast impact does not completely disable the energy-absorbing protection module 5, it can be recovered and evaluated for reuse.

[0086] See also Figure 8 As shown, the embedded tube of the energy-absorbing structure 51 in this embodiment is an equilateral octagonal structure, with ribs provided vertically at the midpoints of each side to connect to the circular outer tube. This not only improves the strength of the embedded tube but also provides good support for the ribs, facilitating the recovery of the energy-absorbing structure 51 after the blasting operation.

[0087] As one embodiment, the energy absorbing structure 51 has an outer tube thickness of 3 mm and a radius of 100 mm, an inner embedded tube thickness of 3 mm, a distance between two opposite sides of 97 mm, and a rib thickness of 3 mm.

[0088] The energy absorption and protection module 5 is an important invention point of this application. Experiments have proven that this structure can effectively prevent impact and absorb energy. On this basis, the present invention adds a first metal plate to further disperse the impact force, and cooperates with the metal spring 53 to further improve the protection capability of the present invention and adapt to the needs of blasting construction.

[0089] Adjacent loading modules 1 are connected via connecting modules 3 .

[0090] See also Figure 4 and Figure 5 As shown, the connection module 3 in this embodiment includes a metal hinge 31 , a metal duckbill buckle 32 , a metal ring hook 33 and two second metal plates 34 .

[0091] The two second metal plates 34 are respectively fixed on the butt joint surfaces at both ends of the loading module 1. As a preferred solution, the second metal plates 34 are embedded before the loading module 1 is injection molded.

[0092] The metal hinge 31 is divided into two parts and fixed on the two second metal plates 34 respectively. The metal duckbill buckle 32 and the metal ring hook 33 are fixed on the two second metal plates 34 respectively.

[0093] See also Figure 12 The present invention also provides a method for implementing a new energy-absorbing protective structure that takes into account the impact of dynamic loads. The method employs the above-mentioned new energy-absorbing protective structure and specifically includes the following technical steps: Step 1: Install the energy absorption protection module 5 A. Install the energy absorption protection module 5: Clean the dust and debris in the second arc-shaped cavity and correctly install the energy absorption protection module 5; B. Filling with polyurethane foam: When the energy absorption protection module 5 cannot fit tightly with the inner wall of the second arc-shaped cavity, polyurethane foam is filled between the first metal plate 52 and the inner wall of the second arc-shaped cavity to fix the energy absorption protection module 5; Step 2: Install the flexible protection module 4 A. Install the flexible protection module 4: Clean the dust and debris in the first arc-shaped cavity and correctly install the flexible protection module 4; B. Filling with polyurethane foam: When the flexible protective module 4 cannot fit tightly against the inner wall of the first arc-shaped cavity, polyurethane foam is filled between the flexible protective module 4 and the inner wall of the first arc-shaped cavity or between the flexible protective materials to fix the flexible protective module 4; Step 3: Install dust suppression module 2 A. Install the steel mesh 21: Install the steel mesh 21 in the dust suppression module 2 in the groove opened in advance on the inner wall of the loading module 1; B. Install the water bag 22: Fix the water bag 22 in the dust suppression module 2 on the steel mesh 21; Step 4: Assemble loading module 1 A. Assembling the loading modules 1: After the energy absorption protection modules 5, flexible protection modules 4, and dust reduction modules 2 in all loading modules 1 are installed, adjacent loading modules 1 are movably connected using metal hinges 31 to enable them to be opened and closed; Step 5: Install the loading module 1 A. Surface treatment of the object to be blasted: remove the gravel on the surface of the object to be blasted and polish the surface of the object to be blasted and protected; B. Installing the loading module 1: Install the loading module 1 in the openable state on the object to be exploded, and connect the metal duckbill buckle 32 and the metal ring hook 33 to fix it; Step 6: Recover the new energy-absorbing protection module 5 A. After the blasting construction is completed, if the energy absorbing module 5 can be continued to be used, the energy absorbing and protective module 5 is recovered and reused.

[0094] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A new energy-absorbing protective structure considering the impact of dynamic loads, characterized in that: It comprises a plurality of loading modules (1), a dust reduction module (2), a connection module (3), a flexible protection module (4) and an energy absorption protection module (5); The inner wall of the loading module (1) is provided with a plurality of staggered grooves, and the dust reduction module (2) is installed in the grooves. The loading module (1) is provided with a first cavity and a second cavity from the inside to the outside, and the two cavities are arranged vertically. The first cavity is provided with a flexible protection module (4), and the second cavity is provided with an energy absorption protection module (5). The dust reduction module (2) comprises a steel mesh (21) and a plurality of water bags (22) filled with a dust reduction solvent, the steel mesh (21) being arranged in a groove, and the water bags (22) being fixed at some intersections of the steel mesh (21); The flexible protective module (4) is composed of one or more flexible protective materials; The energy absorption protection module (5) comprises an energy absorption structure (51) made of metal material, a first metal plate (52) and a metal spring (53); The energy absorbing structure (51) comprises a circular outer tube and an embedded tube at the center of the outer tube, the embedded tube and the outer tube are coaxially arranged with equal length, and the length is less than the width of the second cavity, the cross section of the embedded tube is polygonal, and a plurality of ribs are connected between the outer wall of the embedded tube and the inner wall of the outer tube; The first metal plates (52) include two plates that are arranged opposite to each other, wherein a plurality of energy absorbing structures (51) are evenly distributed on one of the first metal plates (52), and one end of a metal spring (53) is fixed on the other first metal plate (52), and the other end of the first metal spring (53) extends into the embedded tube of the energy absorbing structure (51), and the free length of the metal spring (53) is greater than the width of the second cavity, and the two first metal plates (52) are pre-connected together; Adjacent loading modules (1) are connected via a connecting module (3).

2. A novel energy-absorbing protective structure considering the impact of dynamic loads according to claim 1, characterized in that: The loading module (1) is provided with a first cavity and a second cavity from the inside out.

3. The novel energy-absorbing protective structure considering the impact of dynamic loads according to claim 2 is characterized in that: The loading module (1) can be made into a rectangular or semicircular structure as required. When the loading module (1) is a semicircular structure, a first arc-shaped cavity and a second arc-shaped cavity are provided from the inside to the outside. The centers of the loading module (1) and the two arc-shaped cavities face the same side and the centers of the loading module (1) and the two arc-shaped cavities share a common point.

4. The novel energy-absorbing protective structure considering the impact of dynamic loads according to claim 1 is characterized in that: The inner wall of the loading module (1) is provided with grooves arranged in a staggered manner horizontally and vertically.

5. The novel energy absorbing and protective structure considering the impact of dynamic load according to claim 1 is characterized in that: The loading module (1) consists of a steel wire cage (11) and polyvinyl chloride (12).

6. The novel energy absorbing and protective structure considering the impact of dynamic load according to claim 1 is characterized in that: The water bags (22) are fixed at the intersections of the steel mesh sheets (21) in a one-to-one manner.

7. The novel energy absorbing and protective structure considering the impact of dynamic load according to claim 1 is characterized in that: The embedded tube of the energy absorbing structure (51) is an equilateral octagonal structure, and a rib is provided at the midpoint of each side in a vertical direction to connect with the circular outer tube.

8. The novel energy absorbing and protective structure considering the impact of dynamic load according to claim 1 is characterized in that: The connection module (3) comprises a metal hinge (31), a metal duckbill buckle (32), a metal ring hook (33) and two second metal plates (34); Two second metal plates (34) are respectively fixed on the butt joint surfaces at both ends of the loading module (1); The metal hinge (31) is divided into two parts and fixed on two second metal plates (34) respectively. The metal duckbill buckle (32) and the metal ring hook (33) are fixed on the two second metal plates (34) respectively.

9. The novel energy absorbing and protective structure considering the impact of dynamic load according to claim 1 is characterized in that: The flexible protection module (4) is composed of a self-adhesive geotextile (41) and a steel wire skeleton rubber composite coil (42).

10. A method for implementing a new energy-absorbing protective structure considering the impact of dynamic loads, using the new energy-absorbing protective structure considering the impact of dynamic loads as described in any one of claims 1 to 9, characterized in that: The following technical steps are included: Step 1: Install the energy absorption protection module (5) A. Installing the energy absorbing protection module (5): Clean the dust and debris in the second cavity and correctly install the energy absorbing protection module (5); B. Filling with polyurethane foam: When the energy absorbing protection module (5) cannot be tightly attached to the inner wall of the second cavity, polyurethane foam is filled between the first metal plate (52) and the inner wall of the second cavity to fix the energy absorbing protection module (5); Step 2: Install the flexible protection module (4) A. Installing the flexible protective module (4): Clean the dust and debris in the first cavity and correctly install the flexible protective module (4); B. Filling with polyurethane foaming agent: when the flexible protective module (4) cannot be tightly attached to the inner wall of the first cavity, polyurethane foaming agent is filled between the flexible protective module (4) and the inner wall of the first cavity or between the flexible protective materials to play a fixing role; Step 3: Install the dust suppression module (2) A. Installing the steel mesh (21): Install the steel mesh (21) in the dust suppression module (2) in the groove opened in advance on the inner wall of the loading module (1); B. Installing the water bag (22): Fixing the water bag (22) in the dust suppression module (2) on the steel mesh (21); Step 4: Assemble the loading module (1) A. Assembling the loading modules (1): After the energy absorption protection modules (5), the flexible protection modules (4) and the dust reduction modules (2) in all the loading modules (1) are installed, the adjacent loading modules (1) are movably connected using metal hinges (31) to be in a movable state; Step 5: Install the loading module (1) A. Surface treatment of the object to be protected: remove the gravel on the surface of the object to be protected and polish the surface of the object to be protected; B. Installing the loading module (1): Install the loading module (1) in a movable state on the object to be protected. If it is used for a cylindrical bridge pier, it should be fixed by connecting the metal duckbill buckle (32) and the metal ring hook (33); Step 6: Recover the new energy-absorbing protection module (5) A. After the construction is completed, the energy absorption and protection module (5) is recovered and reused.

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