Rigid-soft multi-cylinder liquid-solid anti-seismic energy-absorbing protection system and construction method

Abstract

The rigid-flexible multi-cylinder liquid-solid anti-seismic energy-absorbing protection system comprises a foundation, a drill hole is formed in the lower portion of the foundation, the drill hole goes deep into a bearing stratum by a certain depth, a round iron sheet is arranged at the bottom end of the drill hole, and a yielding energy-absorbing anchor rod is fixed to the position, located at the top of the round iron sheet, in the drill hole; the space between the yielding energy-absorbing anchor rod and the drill hole is filled with an expanding agent, a reinforced concrete layer is arranged between the bearing layer and the foundation, twisted steel is fixed to the top of the yielding energy-absorbing anchor rod, a high-elasticity rubber barrel is installed on the twisted steel in a sealed mode, and the high-elasticity rubber barrel is filled with non-Newtonian fluid. And a compression spring is arranged in the high-elasticity rubber barrel and located at the top end of the twisted steel. The protection system can generate elastic deformation when subjected to an external instantaneous stress impact load, and then the impact energy is absorbed.

Description

Technical Field

[0001] The invention relates to the technical field of engineering foundation earthquake resistance, and relates to a rigid-flexible multi-tube liquid-solid earthquake resistance energy absorption protection system and a construction method. Background Art

[0002] In the existing technology, the components in the foundation are all fixedly connected to ensure the stability and integrity of the building. In special circumstances, such as earthquakes, when the foundation is subjected to large instantaneous loads, the deformation exceeds the allowable value, and irreversible large-scale deformation damage occurs, causing houses and buildings to collapse, cracks, and other irreversible destructive disasters, seriously affecting people's life safety and the normal use of buildings.

[0003] Generally speaking, in addition to occasional situations where natural disasters such as earthquakes cause damage to the foundation structures of buildings and structures, the alternating loads brought about by passing vehicles in daily life can also easily cause damage to the foundation structures of bridges and highways. Summary of the invention

[0004] In order to solve the current technical problems, the main purpose of the present invention is to provide a multi-cylinder liquid-solid seismic energy absorption protection system and a construction method that are both rigid and flexible. This protection system can undergo elastic deformation when subjected to external instantaneous stress impact loads, thereby absorbing the impact energy; at the same time, this protection system can elastically recover after the stress ends with the help of non-Newtonian fluids and compression springs in the highly elastic rubber cylinder, thereby protecting the main structure. It is mainly suitable for the foundation design of houses in earthquake-prone areas and the foundation protection of elevated highways that are prone to alternating loads.

[0005] In order to realize the above-mentioned technical features, the purpose of the present invention is achieved as follows: a multi-cylinder liquid-solid seismic energy absorption protection system that is both rigid and flexible, including a foundation, a drill hole is arranged below the foundation, the drill hole penetrates to a certain depth inside the bearing layer, a circular iron sheet is arranged at the bottom of the drill hole, a pressure-absorbing energy-absorbing anchor rod is fixed inside the drill hole and on the top of the circular iron sheet, an expansion agent is filled between the pressure-absorbing energy-absorbing anchor rod and the drill hole, a reinforced concrete layer is provided between the bearing layer and the foundation, a threaded steel bar is fixed on the top of the pressure-absorbing anchor rod, a high-elastic rubber cylinder is sealed and installed on the threaded steel bar, the interior of the high-elastic rubber cylinder is filled with non-Newtonian fluid, and a compression spring is arranged inside the high-elastic rubber cylinder and on the top of the threaded steel bar.

[0006] The pressure-absorbing anchor rod comprises a serpentine rod body, the bottom end of which is provided with an anchor rod end head, the top end of which is provided with an upper end connector, and a high-elastic rubber body is fixedly mounted on the serpentine rod body via a fixing nut.

[0007] A centering bracket is arranged at the top end of the pressure-releasing energy-absorbing anchor rod, and the upper end connecting head cooperates with the centering bracket to center the pressure-releasing energy-absorbing anchor rod.

[0008] Three-way pressure-absorbing and energy-absorbing anchor rods are arranged at each corner point of the foundation.

[0009] The bottom end of the pressure-absorbing anchor rod is connected to an anchor rod bag, and is expanded by injecting an expansion agent into the anchor rod bag.

[0010] The reinforced concrete layer is formed by pouring concrete.

[0011] The high-elastic rubber cylinder adopts a cylindrical shape. After the high-elastic rubber cylinder is manufactured, the whole body is closed. The shell of the high-elastic rubber cylinder is made of high-elastic rubber and is connected to the compression spring inside.

[0012] The different high-elastic rubber cylinders are connected as a whole through cross steel bars arranged transversely and longitudinally.

[0013] A construction method for a rigid and flexible multi-tube liquid-solid seismic energy absorption protection system: Peripheral extrusion reinforcement method: Step 1.1, material preparation: prepare grouting machine, expansion agent, concrete, pressure-absorbing anchor rods, threaded steel bars, square iron sheets and round iron sheets; Step 1.2, drilling: Design a location on the bearing layer to be reinforced, and use drilling equipment to drill a hole with a diameter of d and a depth of h according to the size. Use high-pressure air to blow away the remaining water and ash in the hole. The area around the hole should be clean and free of soil and stone debris. The hole diameter, hole spacing, and hole depth are designed according to the actual weakness of the bearing layer itself; Step 1.3, installation: lay a round iron sheet at the bottom of the drill hole, and place the prepared pressure-absorbing anchor rod into the drill hole, and weld the centering bracket at the top along the cross section of the pressure-absorbing anchor rod; Step 1.4, pouring concrete: pouring concrete on the bearing layer and the centering support; Step 1.5, filling expansion agent: after the concrete solidifies, inject expansion agent into the borehole according to the calculated slurry volume, and the filling depth is 100% of the hole depth; Step 1.6, sealing: After the expansion agent is filled, a square iron sheet is placed on the top of the drill hole. The side length of the square iron sheet is more than 4 times the diameter of the drill hole, and a load is applied to seal it; Step 1.7, installation of high-elastic rubber cylinder: After the lower bearing layer is reinforced, the placement position of the high-elastic rubber cylinder is designed between the reinforced concrete layer at the bottom of the building foundation and the bearing layer, and the high-elastic rubber cylinder is installed in the designed position and fixed to prevent the high-elastic rubber cylinder from being offset and rotated under force; Step 1.8, protection system operation: when a large stress impact is applied from the outside, the non-Newtonian fluid and the compression spring shrink and deform to store deformation energy; after the stress is applied, the non-Newtonian fluid and the compression spring in the high-elastic rubber cylinder recover elastically, thereby protecting the building structure; At the same time, the highly elastic rubber body can absorb the strain energy generated instantaneously in the axial direction of the pressure-absorbing energy anchor rod, and compensate after the strain energy peak, so that the surrounding anchoring environment maintains the initial stress state and the overall structural stability. The serpentine rod body is bonded to the expansion agent slurry injected around the borehole, further increasing the bonding performance of the anchor serpentine rod body and improving the anchoring capacity. At the same time, when the pressure-absorbing energy anchor rod generates a large strain energy instantaneously in the axial direction, the serpentine rod body will deform accordingly, thereby absorbing the strain energy and reducing its damage to the structure. At the same time, three-way pressure-absorbing anchor rods are arranged at the corner points of the foundation to protect the large strain energy in the two-way plane and the three-dimensional longitudinal direction, thereby achieving a protective effect.

[0014] A construction method for a rigid and flexible multi-tube liquid-solid seismic energy absorption protection system: Up and down extrusion reinforcement method: Step 2.1, material preparation: prepare high-pressure jet spraying machine, grouting machine, expansion agent, pressure-absorbing anchor rod, anchor rod bag, threaded steel bar, cross steel bar, square iron sheet; Step 2.2, drilling: Design a location on the bearing layer to be reinforced, and use drilling equipment to drill a hole with a diameter of d and a depth of h according to the size. Use high-pressure air to blow away the remaining water and ash in the hole. The area around the hole should be clean and free of soil and stone debris. The diameter, hole spacing, and hole depth of the hole should be designed according to the actual weakness of the bearing layer itself; Step 2.4, hole expansion: After drilling to the designed depth at the bottom of the upper borehole with a drilling machine, high-pressure rotary jetting is used to expand the hole. Before formal construction, experiments are required under the same geological conditions to determine the hole expansion construction parameters to ensure that the diameter and length of the expanded hole meet the design requirements. When the hole is formed and expanded, mud is used to protect the hole wall. The pressure-absorbing anchor rod is placed at the designed position of the upper and lower boreholes, and the configured expansion agent is injected into the anchor rod bag at the lower end of the pressure-absorbing anchor rod; Step 2.5, installation: place the pressure-absorbing energy anchor rod to the designed positions of the upper and lower drilled holes, and weld cross steel bars at the upper designed position along the cross section of the pressure-absorbing energy anchor rod; Step 2.6, pouring concrete: pouring concrete at the bearing layer and the cross steel bars; Step 2.7, filling expansion agent: after the concrete solidifies, the grouting machine injects the prepared expansion agent into the upper borehole and the anchor bag of the pressure-absorbing anchor according to the calculated slurry volume, and completes the grouting of the lower borehole. The filling depth is 100% of the hole depth; Step 2.8, sealing: After the charge is loaded, the top of the drill hole is sealed with a square iron sheet and an external load; Step 2.9, installation of high-elastic rubber cylinder: After the lower bearing layer is reinforced, a placement position for the high-elastic rubber cylinder is designed between the reinforced concrete layer at the bottom of the building foundation and the bearing layer, and the high-elastic rubber cylinder is installed in the designed position and fixed to prevent the high-elastic rubber cylinder from being offset and rotating under force; Step 2.10, protection system operation: when a large stress impact is applied from the outside, the non-Newtonian fluid and the compression spring shrink and deform to store deformation energy; after the stress is applied, the non-Newtonian fluid and the compression spring in the high-elastic rubber cylinder recover elastically, thereby protecting the building structure; At the same time, the highly elastic rubber body can absorb the strain energy generated instantaneously in the axial direction of the pressure-absorbing energy anchor rod, and compensate after the strain energy peak, so that the surrounding anchoring environment maintains the initial stress state and the overall structural stability. The serpentine rod body is bonded to the expansion agent slurry injected around the borehole, further increasing the bonding performance of the anchor serpentine rod body and improving the anchoring capacity. At the same time, when the pressure-absorbing energy anchor rod generates a large strain energy instantaneously in the axial direction, the serpentine rod body will deform accordingly, thereby absorbing the strain energy and reducing its damage to the structure. At the same time, three-way pressure-absorbing anchor rods are arranged at the corner points of the foundation to protect the large strain energy in the two-way plane and the three-dimensional longitudinal direction, thereby achieving a protective effect.

[0015] The present invention has the following beneficial effects: 1. The protection system of the present invention can undergo elastic deformation when subjected to external instantaneous stress impact loads, thereby absorbing the impact energy; at the same time, after the stress ends, the protection system can elastically recover with the help of non-Newtonian fluid and compression spring in the highly elastic rubber cylinder, thereby protecting the main structure. It is mainly suitable for the foundation design of houses in earthquake-prone areas and the foundation protection of elevated highways prone to alternating loads.

[0016] 2. The present invention uses a prefabricated high-elastic rubber cylinder with good elastic recovery ability. The cylinder is in a cylindrical shape. After the cylinder is manufactured, it is completely closed. The outer shell of the cylinder is made of high-elastic rubber, and the interior is connected to a compression spring. The cross-section of the compression spring is circular, and its center diameter is similar to the diameter of the outer cylinder. Non-Newtonian fluid is injected between the inner wall of the cylinder and the cylinder. When a large stress impact is applied from the outside, the non-Newtonian fluid and the spring shrink and deform to store deformation energy. After the stress acts, the non-Newtonian fluid and the compression spring in the high-elastic rubber cylinder perform elastic recovery, thereby protecting the building structure.

[0017] 3. Different from the traditional grouting in the borehole, the expansion agent used in the present invention is used to reinforce the bearing layer. The expansion agent must meet the requirements of controllable cycle, controllable expansion rate, and large expansion force. When in use, the expansion agent is mixed with cement and water to make an expansion agent that meets the construction requirements and then used. The present invention utilizes the "head expansion" effect of the expansion agent slurry, which can significantly increase the pull-out resistance of the anchor rod and better enhance the overall rigid and flexible multi-tube liquid-solid anti-seismic energy absorption protection system.

[0018] 4. In the borehole, the fixing nut is innovatively used to fix the lower high-elastic rubber body. The high-elastic rubber body can absorb the large strain energy generated instantaneously in the axial direction of the pressure-absorbing energy-absorbing anchor rod, and compensate after the strain energy peak, so that the surrounding anchoring environment maintains the initial stress state and maintains the overall structural stability. The serpentine rod body is bonded to the expansion agent slurry injected around the borehole, which can further increase the bonding effect of the anchor serpentine rod body and significantly improve the anchoring capacity. At the same time, the serpentine rod body will produce corresponding deformation when the pressure-absorbing energy-absorbing anchor rod generates large strain energy instantaneously in the axial direction, which can absorb the strain energy to a large extent and reduce its damage to the structure. At the same time, the three-way pressure-absorbing energy-absorbing anchor rod is arranged at the corner point of the foundation, which can protect the large strain energy in the two directions of the plane and the three-dimensional longitudinal direction, and play a better protective effect.

[0019] 5. From the construction perspective, the anchor rods are made according to the design requirements and can be precisely aligned at the center of the drill hole. A centering bracket is set on the anchor rod, and one can be designed along the length of each end of the steel bar. The bottom of the anchor rod is connected to the finished expanded head bag of the corresponding specification. The centering bracket is set on the anchor rod corresponding to the upper end connector of the energy-absorbing anchor rod to accurately position it in the drill hole, which is convenient for construction.

[0020] 6. After the reinforcement of the lower bearing layer is completed, the position for the non-Newtonian cylinder is designed between the reinforced concrete layer and the bearing layer at the bottom of the building. The non-Newtonian cylinder is installed in the designed position and simply fixed to prevent the cylinder from being offset and rotated by force. When a large stress impact is applied from the outside, the non-Newtonian fluid and the spring shrink and deform to store deformation energy. After the stress acts, the non-Newtonian fluid and the compression spring in the high-elastic rubber cylinder recover elastically, thereby protecting the building structure. The compression spring in the high-elastic rubber cylinder has a good shock-absorbing effect on axial longitudinal waves, and the non-Newtonian fluid between the cylinder wall and the spring can isolate the transmission of transverse waves, thereby protecting the building structure from damage. After the reinforcement of the lower bearing layer, the bearing effect on the house is better, and the non-Newtonian shock-absorbing cylinder is used to protect the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 This is an overall layout diagram of a rigid and flexible multi-tube liquid-solid anti-seismic energy absorption protection system of the present invention.

[0023] Figure 2 This is the overall structural diagram of the pressure-absorbing energy anchor rod of the present invention.

[0024] Figure 3 This is a working principle diagram of the pressure-absorbing energy anchor rod body of the present invention.

[0025] Figure 4 This is the basic corner point layout diagram of the present invention.

[0026] Figure 5 This is a three-way layout diagram of the foundation corner anchor rods of the present invention.

[0027] In the figure: expansion agent 1, non-Newtonian fluid 2, high elastic rubber cylinder 3, compression spring 4, reinforced concrete layer 5, concrete 6, pressure-absorbing anchor rod 7, anchor rod bag, centering bracket 9, threaded steel bar 10, round iron sheet 11, foundation 12, bearing layer 13, drill hole 14; An upper end connecting head 71 , a fixing nut 72 , a highly elastic rubber body 73 , a serpentine rod body 74 , and an anchor rod end 75 . DETAILED DESCRIPTION

[0028] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0029] Embodiment 1: See also Figure 1-5 A multi-cylinder liquid-solid anti-seismic energy absorption protection system with both rigidity and flexibility includes a foundation 12, a borehole 14 is arranged below the foundation 12, the borehole 14 penetrates to a certain depth inside the bearing layer 13, a round iron sheet 11 is arranged at the bottom of the borehole 14, a pressure-absorbing anchor rod 7 is fixed inside the borehole 14 and on the top of the round iron sheet 11, an expansion agent 1 is filled between the pressure-absorbing anchor rod 7 and the borehole 14, a reinforced concrete layer 5 is between the bearing layer 13 and the foundation 12, a threaded steel bar 10 is fixed on the top of the pressure-absorbing anchor rod 7, a high-elastic rubber cylinder 3 is sealed and installed on the threaded steel bar 10, the interior of the high-elastic rubber cylinder 3 is filled with a non-Newtonian fluid 2, and a compression spring 4 is arranged inside the high-elastic rubber cylinder 3 and on the top of the threaded steel bar 10. By adopting the above-mentioned energy absorption protection system, it can undergo elastic deformation when subjected to external instantaneous stress impact load, thereby absorbing the impact energy; at the same time, this protection system can perform elastic recovery after the stress ends with the help of the non-Newtonian fluid in the highly elastic rubber cylinder 3 and the compression spring 4, thereby protecting the main structure. It is mainly suitable for the foundation design of houses in earthquake-prone areas and the foundation protection of elevated highways that are prone to alternating loads.

[0030] Furthermore, the pressure-absorbing anchor rod 7 includes a serpentine rod body 74, the bottom end of which is provided with an anchor rod end 75, the top end of which is provided with an upper end connector 71, and a highly elastic rubber body 73 is fixedly mounted on the serpentine rod body 74 through a fixing nut 72. The φ6.5 centering bracket 9 is arranged on the anchor rod corresponding to the upper end connector 71, and accurate positioning in the borehole can be performed. The fixing nut 72 fixes the lower highly elastic rubber body 73, and the highly elastic rubber body 73 can absorb the large strain energy generated instantaneously in the axial direction of the pressure-absorbing anchor rod 7, and compensate after the peak value of the strain energy, so that the surrounding anchoring environment maintains the initial stress state and maintains the stability of the overall structure. The serpentine rod body 74 is bonded to the expansion agent 1 slurry injected around the borehole, which can further increase the bonding effect of the anchor rod serpentine rod body 74 and significantly improve the anchoring ability. At the same time, the serpentine rod body 74 will produce corresponding deformation when the pressure-absorbing energy anchor rod 7 generates a large axial strain energy instantaneously, which can absorb the strain energy to a large extent and reduce the damage to the structure.

[0031] Furthermore, a centering bracket 9 is provided at the top end of the pressure-absorbing anchor rod 7 , and the upper end connector 71 cooperates with the centering bracket 9 to center the pressure-absorbing anchor rod 7 .

[0032] Furthermore, a three-way pressure-absorbing anchor rod 7 is arranged at each corner point 121 of the foundation 12, which can protect the large strain energy in two directions in the plane and three-dimensionally in the longitudinal direction, and achieve a better protection effect.

[0033] Furthermore, the bottom end of the pressure-absorbing anchor rod 7 is connected to an anchor rod bag, and is expanded by injecting an expansion agent 1 into the anchor rod bag.

[0034] Furthermore, the reinforced concrete layer 5 is cast by using concrete 6 .

[0035] Furthermore, the high-elastic rubber cylinder 3 is in the shape of a cylinder. After the high-elastic rubber cylinder 3 is manufactured, it is completely closed. The shell of the high-elastic rubber cylinder 3 is made of high-elastic rubber, and the interior is connected to the compression spring 4. The prefabricated high-elastic rubber cylinder 3 has good elastic recovery ability. Its height is H and its diameter is D. After the cylinder is manufactured, it is completely closed, and the non-Newtonian fluid 2 is injected between the inner wall of the cylinder and the cylinder. When a large stress impact is applied from the outside, the non-Newtonian fluid 2 and the spring contraction 4 are deformed to store deformation energy. After the stress acts, the non-Newtonian fluid 2 and the compression spring 4 in the high-elastic rubber cylinder 3 are elastically restored, thereby protecting the building structure.

[0036] Furthermore, the different high-elastic rubber cylinders 3 are connected as a whole through cross steel bars arranged transversely and longitudinally.

[0037] Embodiment 2: A construction method for a rigid and flexible multi-tube liquid-solid seismic energy absorption protection system: Peripheral extrusion reinforcement method: Step 1.1, material preparation: prepare grouting machine, expansion agent, concrete, pressure-absorbing anchor rods, threaded steel bars, square iron sheets and round iron sheets; Step 1.2, drilling: Design a position on the bearing layer 13 to be reinforced, and use a drilling device to drill a borehole 14 with a diameter of d and a depth of h according to the size. Use high-pressure air to blow away the remaining water and ash in the borehole 14. The area around the hole should be clean and free of soil and stone debris. The diameter, hole spacing, and hole depth of the borehole 14 are designed according to the actual weakness of the bearing layer 13 itself; Step 1.3, installation: lay a round iron sheet 11 at the bottom of the borehole 14, and place the manufactured pressure-absorbing anchor rod 7 into the borehole 14, and weld the centering bracket 9 at the upper part along the cross section of the pressure-absorbing anchor rod 7; Step 1.4, pouring concrete: pouring concrete 6 between the bearing layer 13 and the centering support 9; Step 1.5, filling expansion agent: after the concrete solidifies, the expansion agent 1 is injected into the borehole 14 according to the calculated slurry amount, and the filling depth is 100% of the hole depth; Step 1.6, sealing: After the expansion agent is filled, a square iron sheet is placed at the top of the drill hole 14, the side length of the square iron sheet being more than 4 times the diameter of the drill hole 14, and a load is applied to seal it; Step 1.7, installation of the high-elastic rubber cylinder 3: after the lower bearing layer 13 is reinforced, a placement position of the high-elastic rubber cylinder 3 is designed between the reinforced concrete layer 5 at the bottom of the building foundation 12 and the bearing layer 13, and the high-elastic rubber cylinder 3 is installed in the designed position and fixed to prevent the high-elastic rubber cylinder 3 from being offset and rotating due to force; Step 1.8, protection system operation: when a large stress impact is applied from the outside, the non-Newtonian fluid 2 and the compression spring 4 shrink and deform to store deformation energy; after the stress is applied, the non-Newtonian fluid 2 and the compression spring 4 in the high-elastic rubber cylinder 3 perform elastic recovery, thereby protecting the building structure; At the same time, the highly elastic rubber body 73 can absorb the strain energy generated instantaneously in the axial direction of the pressure-absorbing energy anchor rod 7, and compensate after the strain energy peak, so that the surrounding anchoring environment maintains the initial stress state and the overall structural stability. The serpentine rod body 74 is bonded to the slurry of the expansion agent 1 injected around the borehole, further increasing the bonding performance of the anchor serpentine rod body 74 and improving the anchoring capacity; at the same time, when the pressure-absorbing energy anchor rod 7 generates a large strain energy instantaneously in the axial direction, the serpentine rod body 74 will produce corresponding deformation, thereby absorbing the strain energy and reducing its damage to the structure; At the same time, three-way pressure-absorbing anchor rods 7 are arranged at the corner points 121 passing through the foundation 12 to protect the large strain energy in the two-way plane and the three-dimensional longitudinal direction, thereby achieving a protective effect.

[0038] Embodiment 3: A construction method for a rigid and flexible multi-tube liquid-solid seismic energy absorption protection system: Up and down extrusion reinforcement method: Step 2.1, material preparation: prepare a high-pressure jet spraying machine, a grouting machine, an expansion agent, a pressure-absorbing energy anchor 7, an anchor bag, threaded steel bars, cross steel bars, and a square iron sheet; Step 2.2, drilling: Design a position on the bearing layer 13 to be reinforced, and use a drilling device to drill a borehole 14 with a diameter of d and a depth of h according to the size. Use high-pressure air to blow away the remaining water and ash in the borehole 14. The area around the hole should be clean and free of soil and stone debris. The diameter, hole spacing, and hole depth of the borehole 14 are designed according to the actual weakness of the bearing layer 13 itself; Step 2.4, hole expansion: After drilling to the designed depth at the bottom of the upper borehole with a drilling machine, high-pressure rotary jetting is used to expand the hole. Before formal construction, experiments are required under the same geological conditions to determine the hole expansion construction parameters to ensure that the diameter and length of the expanded hole meet the design requirements. When the hole is formed and expanded, mud is used to protect the hole wall. The pressure-absorbing anchor rod 7 is placed at the designed position of the upper and lower boreholes, and the configured expansion agent is injected into the anchor rod bag at the lower end of the pressure-absorbing anchor rod 7; Step 2.5, installation: placing the pressure-absorbing energy anchor rod 7 to the designed positions of the upper and lower drilled holes, and welding cross steel bars at the upper designed position along the cross section of the pressure-absorbing energy anchor rod 7; Step 2.6, pouring concrete: pouring concrete between the bearing layer 13 and the cross steel bars; Step 2.7, filling expansion agent 1: after the concrete solidifies, the prepared expansion agent 1 is injected into the upper borehole and the anchor bag of the pressure-absorbing anchor 7 by a grouting machine according to the calculated slurry volume, and the grouting of the lower borehole is completed. The filling depth is 100% of the hole depth; Step 2.8, sealing: After the charge is loaded, the top of the drill hole is sealed with a square iron sheet and an external load; Step 2.9, installation of the high-elastic rubber cylinder 3: after the lower bearing layer 13 is reinforced, a placement position of the high-elastic rubber cylinder 3 is designed between the reinforced concrete layer 5 at the bottom of the building foundation 12 and the bearing layer 13, and the high-elastic rubber cylinder 3 is installed in the designed position and fixed to prevent the high-elastic rubber cylinder 3 from being offset and rotating due to force; Step 2.10, protection system operation: when a large stress impact is applied from the outside, the non-Newtonian fluid 2 and the compression spring 4 shrink and deform to store deformation energy; after the stress is applied, the non-Newtonian fluid 2 and the compression spring 4 in the high elastic rubber cylinder 3 perform elastic recovery, thereby protecting the building structure; At the same time, the highly elastic rubber body 73 can absorb the strain energy generated instantaneously in the axial direction of the pressure-absorbing energy anchor rod 7, and compensate after the strain energy peak, so that the surrounding anchoring environment maintains the initial stress state and the overall structural stability. The serpentine rod body 74 is bonded to the slurry of the expansion agent 1 injected around the borehole, further increasing the bonding performance of the anchor serpentine rod body 74 and improving the anchoring capacity; at the same time, when the pressure-absorbing energy anchor rod 7 generates a large strain energy instantaneously in the axial direction, the serpentine rod body 74 will produce corresponding deformation, thereby absorbing the strain energy and reducing its damage to the structure; At the same time, three-way pressure-absorbing anchor rods 7 are arranged at the corner points 121 passing through the foundation 12 to protect the large strain energy in the two-way plane and the three-dimensional longitudinal direction, thereby achieving a protective effect.

Claims

1. A multi-tube liquid-solid anti-seismic energy absorption protection system that is both rigid and flexible, characterized in that: The invention comprises a foundation (12), a borehole (14) is arranged below the foundation (12), the borehole (14) penetrates into a certain depth inside a bearing layer (13), a round iron sheet (11) is arranged at the bottom end of the borehole (14), a pressure-absorbing anchor rod (7) is fixed inside the borehole (14) and at the top of the round iron sheet (11), an expansion agent (1) is filled between the pressure-absorbing anchor rod (7) and the borehole (14), a reinforced concrete layer (5) is provided between the bearing layer (13) and the foundation (12), a threaded steel bar (10) is fixed at the top of the pressure-absorbing anchor rod (7), a high-elastic rubber cylinder (3) is sealed and installed on the threaded steel bar (10), the interior of the high-elastic rubber cylinder (3) is filled with a non-Newtonian fluid (2), and a compression spring (4) is arranged inside the high-elastic rubber cylinder (3) and at the top of the threaded steel bar (10).

2. According to claim 1, a multi-tube liquid-solid anti-seismic energy absorption protection system that is both rigid and flexible, characterized in that: The pressure-absorbing anchor rod (7) comprises a serpentine rod body (74), the bottom end of which is provided with an anchor rod end (75), the top end of which is provided with an upper end connector (71), and a high-elastic rubber body (73) is fixedly mounted on the serpentine rod body (74) via a fixing nut (72).

3. According to claim 2, a multi-tube liquid-solid anti-seismic energy absorption protection system that is both rigid and flexible, characterized in that: A centering bracket (9) is provided at the top end of the pressure-absorbing anchor rod (7), and the upper end connector (71) cooperates with the centering bracket (9) to center the pressure-absorbing anchor rod (7).

4. According to claim 2, a multi-tube liquid-solid anti-seismic energy absorption protection system that is both rigid and flexible, characterized in that: A three-way pressure-absorbing anchor rod (7) is arranged at each corner point (121) of the foundation (12).

5. According to claim 2, a multi-tube liquid-solid anti-seismic energy absorption protection system that is both rigid and flexible, characterized in that: The bottom end of the pressure-absorbing anchor rod (7) is connected to an anchor rod bag, and is expanded by injecting a swelling agent (1) into the anchor rod bag.

6. According to claim 2, a multi-tube liquid-solid anti-seismic energy absorption protection system that is both rigid and flexible, characterized in that: The reinforced concrete layer (5) is formed by pouring concrete (6).

7. According to claim 2, a multi-tube liquid-solid anti-seismic energy absorption protection system that is both rigid and flexible, characterized in that: The high-elastic rubber cylinder (3) is in the shape of a cylinder. After the high-elastic rubber cylinder (3) is manufactured, it is completely sealed. The outer shell of the high-elastic rubber cylinder (3) is made of high-elastic rubber and is connected to the compression spring (4) inside.

8. According to claim 7, a multi-tube liquid-solid anti-seismic energy absorption protection system that is both rigid and flexible is characterized by: The different high-elastic rubber cylinders (3) are connected as a whole via cross steel bars arranged transversely and longitudinally.

9. A construction method for a rigid and flexible multi-tube liquid-solid anti-seismic energy absorption protection system according to any one of claims 1 to 8, characterized in that: Peripheral extrusion reinforcement method: Step 1.1, material preparation: prepare grouting machine, expansion agent, concrete, pressure-absorbing anchor rods, threaded steel bars, square iron sheets and round iron sheets; Step 1.2, drilling: Design a position on the bearing layer (13) to be reinforced, and use a drilling device to drill a borehole (14) with a diameter of d and a depth of h according to the size. Use high-pressure air to clean the remaining water and ash in the borehole (14). The area around the hole should be clean and free of soil and stone debris. The diameter, hole spacing, and hole depth of the borehole (14) are designed according to the actual weakness of the bearing layer (13). Step 1.3, installation: a circular iron sheet (11) is laid at the bottom of the drill hole (14), and the manufactured pressure-absorbing anchor rod (7) is placed in the drill hole (14), and a centering bracket (9) is welded on the upper part along the cross section of the pressure-absorbing anchor rod (7); Step 1.4, pouring concrete: pouring concrete (6) at the bearing layer (13) and the centering support (9); Step 1.5, filling with expansion agent: after the concrete solidifies, the expansion agent (1) is injected into the borehole (14) according to the calculated slurry amount, and the filling depth is 100% of the hole depth; Step 1.6, sealing: after the expansion agent is filled, a square iron sheet is placed at the top of the drill hole (14), the side length of the square iron sheet being more than 4 times the diameter of the drill hole (14), and a load is applied to seal it; Step 1.7, installation of the high-elastic rubber cylinder (3): after the reinforcement of the lower bearing layer (13) is completed, a placement position for the high-elastic rubber cylinder (3) is designed between the reinforced concrete layer (5) at the bottom of the building foundation (12) and the bearing layer (13), and the high-elastic rubber cylinder (3) is installed in the designed position and fixed to prevent the high-elastic rubber cylinder (3) from being offset and rotating due to force; Step 1.8, operation of the protection system: when a large stress impact is applied from the outside, the non-Newtonian fluid (2) and the compression spring (4) shrink and deform to store deformation energy; after the stress is applied, the non-Newtonian fluid (2) and the compression spring (4) in the high elastic rubber cylinder (3) perform elastic recovery, thereby protecting the building structure; At the same time, the highly elastic rubber body (73) can absorb the strain energy generated instantaneously in the axial direction of the pressure-absorbing energy anchor rod (7), and compensate after the strain energy peak, so that the surrounding anchoring environment maintains the initial stress state and the overall structural stability. The snake-shaped rod body (74) is bonded to the slurry of the expansion agent (1) injected around the borehole, further increasing the bonding performance of the anchor rod snake-shaped rod body (74) and improving the anchoring capacity. At the same time, when the pressure-absorbing energy anchor rod (7) generates a large strain energy instantaneously in the axial direction, the snake-shaped rod body (74) will produce corresponding deformation, thereby absorbing the strain energy and reducing its damage to the structure. At the same time, three-way pressure-absorbing anchor rods (7) are arranged at the corner points (121) passing through the foundation (12) to protect against large strain energy in two directions in the plane and three dimensions in the longitudinal direction, thereby achieving a protective effect.

10. A construction method for a rigid and flexible multi-tube liquid-solid anti-seismic energy absorption protection system according to any one of claims 1 to 8, characterized in that: Up and down extrusion reinforcement method: Step 2.1, material preparation: prepare a high-pressure jet spraying machine, a grouting machine, an expansion agent, a pressure-absorbing energy anchor (7), an anchor bag, threaded steel bars, cross steel bars, and a square iron sheet; Step 2.2, drilling: Design a position on the bearing layer (13) to be reinforced, and use a drilling device to drill a borehole (14) with a diameter of d and a depth of h according to the size. Use high-pressure air to blow away the remaining water and ash in the borehole (14). The area around the hole should be clean and free of soil and stone debris. The diameter, hole spacing, and hole depth of the borehole (14) are designed according to the actual weakness of the bearing layer (13). Step 2.4, hole expansion: After drilling to the designed depth at the bottom of the upper borehole with a drilling machine, the hole is expanded by high-pressure rotary jetting. Before formal construction, experiments are conducted under the same geological conditions to determine the hole expansion construction parameters to ensure that the diameter and length of the expanded hole meet the design requirements. When the hole is formed and expanded, mud is used to protect the hole wall. The pressure-absorbing energy anchor rod (7) is placed at the designed position of the upper and lower boreholes, and the prepared expansion agent is injected into the anchor rod bag at the lower end of the pressure-absorbing energy anchor rod (7); Step 2.5, installation: placing the pressure-absorbing energy anchor rod (7) at the designed positions of the upper and lower drilled holes, and welding a cross steel bar at the designed upper position along the cross section of the pressure-absorbing energy anchor rod (7); Step 2.6, pouring concrete: pouring concrete between the bearing layer (13) and the cross steel bars; Step 2.7, filling the expansion agent (1): after the concrete solidifies, the prepared expansion agent (1) is injected into the upper borehole and the anchor bag of the pressure-absorbing anchor (7) by a grouting machine according to the calculated grouting amount, and the grouting of the lower borehole is completed. The filling depth is 100% of the hole depth; Step 2.8, sealing: After the charge is loaded, the top of the drill hole is sealed with a square iron sheet and an external load; Step 2.9, installation of the high-elastic rubber cylinder (3): after the lower bearing layer (13) is reinforced, a placement position for the high-elastic rubber cylinder (3) is designed between the reinforced concrete layer (5) at the bottom of the building foundation (12) and the bearing layer (13), and the high-elastic rubber cylinder (3) is installed in the designed position and fixed to prevent the high-elastic rubber cylinder (3) from being offset and rotating due to force; Step 2.10, operation of the protection system: when a large stress impact is applied from the outside, the non-Newtonian fluid (2) and the compression spring (4) shrink and deform to store deformation energy; after the stress is applied, the non-Newtonian fluid (2) and the compression spring (4) in the high elastic rubber cylinder (3) perform elastic recovery, thereby protecting the building structure; At the same time, the highly elastic rubber body (73) can absorb the strain energy generated instantaneously in the axial direction of the pressure-absorbing energy anchor rod (7), and compensate after the strain energy peak, so that the surrounding anchoring environment maintains the initial stress state and the overall structural stability. The snake-shaped rod body (74) is bonded to the slurry of the expansion agent (1) injected around the borehole, further increasing the bonding performance of the anchor rod snake-shaped rod body (74) and improving the anchoring capacity. At the same time, when the pressure-absorbing energy anchor rod (7) generates a large strain energy instantaneously in the axial direction, the snake-shaped rod body (74) will produce corresponding deformation, thereby absorbing the strain energy and reducing its damage to the structure. At the same time, three-way pressure-absorbing anchor rods (7) are arranged at the corner points (121) passing through the foundation (12) to protect against large strain energy in two directions in the plane and three dimensions in the longitudinal direction, thereby achieving a protective effect.

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