A device and method for actively unloading the side pressure of the side piles of a large surcharge building

Abstract

This invention discloses an active unloading device and method for the side pressure of side piles in a large surcharge plant, belonging to the field of foundation engineering reinforcement technology. It includes a pressure stabilizing body with a cavity inside, which is filled with liquid. The side wall of the pressure stabilizing body is connected to a guide pipe to discharge the liquid inside the pressure stabilizing body. The guide pipe is equipped with a magnetic flow valve, which is connected to a central control instrument. The central control instrument is also connected to an earth pressure gauge.

Description

Technical Field

[0001] This invention relates to the field of foundation engineering reinforcement technology, and in particular to an active unloading device and method for the side pressure of side piles in a large surcharge plant. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] Steel structure workshops are widely used due to their simple construction and low cost. They are the most common material storage structure used in large industrial enterprises and thermal power plants, playing an important role in protecting large quantities of temporarily stored materials. Before the main structure of the steel structure workshop is constructed, column foundation structures such as strip foundations or pile foundations are usually built in the surrounding strata to support the load of the superstructure.

[0004] The inventors discovered that after the completion of a steel structure factory building, the open space inside is directly used for loading heavy objects such as equipment, steel, and coal, which directly leads to consolidation settlement of the strata within the factory's coverage area over a prolonged period. This consolidation settlement of the soil inside the factory causes significant lateral displacement, adversely affecting the bearing stability of the boundary foundation structure and potentially causing the entire factory to collapse. To eliminate the impact of loader loading on the main structural foundation, foundation treatment is usually required in the loader loading area, directly increasing construction costs. In soft soil regions of southern my country and worldwide, the annual construction costs incurred due to foundation treatment in loader loading areas are incalculable.

[0005] While existing anti-soil displacement devices can eliminate the impact of soil displacement piles, they cannot eliminate the impact of lateral deformation of the surcharge stratum on the side piles. They are not only cumbersome to operate, but also cannot be reused and require new trenching. They are obviously unsuitable for surcharge plants with limited usable area. Furthermore, anti-soil displacement devices with pressure water bladder structures lack corresponding water pressure monitoring and adjustment devices. As dewatering construction progresses, the consolidation and settlement of the stratum will cause changes in the pressure of the pressure water bladder, resulting in changes in the stress on the protected side. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the present invention aims to provide an active unloading device and method for the side pressure of side piles in large-scale surcharge plant structures. A pressure stabilizing body is placed within an excavated trench and covered by a cover beam. A flow guide pipe is installed along the top edge of the side wall of the pressure stabilizing body, and a magnetic flow valve with a digital pressure gauge is installed. The magnetic flow valve is connected to a central control unit, which can also be externally connected to an earth pressure gauge embedded inside the side pile. When the water pressure of the pressure stabilizing body and the earth pressure gauge reading rise to a critical threshold, the central control unit adjusts the magnetic flow valve to open and release the water pressure. When the water pressure drops, the central control unit closes the magnetic flow valve, achieving the purpose of adjusting the water pressure according to the lateral deformation of the soil. This solves the problem that existing anti-soil-displacement devices cannot actively unload the side pressure of side piles.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0008] In a first aspect, the present invention proposes an active unloading device for the side pressure of the side piles of a large slab building, comprising a pressure stabilizing body, wherein the pressure stabilizing body has a cavity inside which is filled with liquid; the side wall of the pressure stabilizing body is connected to a guide pipe to discharge the liquid inside the pressure stabilizing body, the guide pipe is equipped with a magnetic flow valve, the magnetic flow valve is connected to a central control instrument, and the central control instrument is also connected to an earth pressure gauge.

[0009] As a further technical solution, the pressure stabilizer is a sealed waterproof membrane bag, which is filled with a mixture of water and industrial alcohol.

[0010] As a further technical solution, the internal cavity of the voltage stabilizer is provided with multiple membrane bag inner ribs along the vertical direction.

[0011] As a further technical solution, the height of the inner rib of the membrane bag is less than the height of the internal cavity of the voltage stabilizer, and there is a gap between the two ends of the inner rib of the membrane bag and the inner wall of the voltage stabilizer.

[0012] As a further technical solution, the inner rib of the membrane bag is made of composite fiber material.

[0013] As a further technical solution, multiple ribs are provided inside the membrane bag, and the multiple ribs are spaced apart and evenly distributed in the pressure stabilizing body.

[0014] As a further technical solution, the inner rib of the membrane bag is strip-shaped, and multiple inner ribs of the membrane bag are arranged parallel to each other; the voltage stabilizer has a cuboid structure.

[0015] As a further technical solution, one end of the magnetic flow valve is connected to the guide pipe, and the other end of the magnetic flow valve is a free end to discharge the liquid in the pressure regulator body. The magnetic flow valve is connected to a digital display pressure gauge.

[0016] As a further technical solution, a beam plate is provided on the top of the pressure stabilizer, the beam plate includes a prefabricated top cover plate, the prefabricated top cover plate has an arched structure, and prefabricated side guide beams are provided at the bottom of both ends of the prefabricated top cover plate, and the pressure stabilizer is arranged between the two prefabricated side guide beams.

[0017] Secondly, the present invention proposes a working method for an active unloading device for the side pressure of the side piles of a large slab loading plant, as described above, comprising the following steps:

[0018] Earth pressure gauges are inserted into the soil strata at multiple points inside the side piles. The earth pressure gauges are connected to the central control instrument to monitor the lateral pressure in advance.

[0019] Measurements were taken at the perimeter of the loading plant area near the edge piles to locate the proposed excavation area for the pressure stabilizing body. The pressure stabilizing body was then lowered into the trench, and liquid was promptly injected into it through the diversion pipe. After overflow, the magnetic flow valve was closed to maintain constant pressure.

[0020] When the surcharged stratum is laterally extruded towards the surrounding trench area, the laterally extruded soil directly acts on the pressure stabilizing body. After the liquid pressure in the pressure stabilizing body rises to the set value, it continues to transmit the pressure to the side pile area where the earth pressure gauge is buried, causing the side pile lateral pressure to rise.

[0021] After the soil pressure on the pile side and the pressure inside the stabilizing body reach the threshold, the magnetic flow valve opens and discharges liquid from the guide pipe until the pressure inside the stabilizing body drops to the set value, then the magnetic flow valve closes, realizing the active unloading of the side pressure of the pile.

[0022] The beneficial effects of the present invention are as follows:

[0023] (1) The pressure stabilizer and the earth pressure gauge of the present invention are connected to the central control instrument. The central control instrument automatically monitors the pressure value of the earth pressure gauge and the liquid pressure in the pressure stabilizer, and controls the discharge of the liquid in the pressure stabilizer, thereby accurately controlling the lateral pressure of the side pile and realizing the active unloading of the excessive lateral pressure of the side pile.

[0024] (2) The present invention places the pressure stabilizer in the trench excavated in the protection zone of the side pile and uses an earth pressure gauge to monitor the earth pressure, which can accurately control the lateral pressure of the side pile and eliminate the influence of earth pressure on the side pile.

[0025] (3) The cover beam of the present invention is prefabricated in the factory, with a simple structure. The installation process is similar to that of general diaphragm wall construction, which is convenient to install and can ensure that the pressure stabilizer is not damaged by the upper load. When replacing, only the cover beam needs to be replaced. The pressure stabilizer can be reused, avoiding waste.

[0026] (4) The present invention sets up multiple pressure stabilizers, which can cut off the continuity of lateral deformation between the surcharge stratum soil and the side pile area soil. Considering the heterogeneity of the surcharge stratum in the plant area, there may be inconsistent lateral deformation. The pressure stabilizers are placed in sections and blocks in the excavated trench and connected to the micro central control instrument respectively. This allows one micro central control instrument to adjust the pressure of multiple different pressure stabilizers at the same time, so as to achieve the purpose of segmented and zoned control of the side pile side pressure. Attached Figure Description

[0027] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0028] Figure 1 This is a schematic diagram of the overall structure of an active unloading device for the side pressure of a large slab building according to one or more embodiments of the present invention.

[0029] Figure 2 This is a schematic diagram of the cover beam structure according to one or more embodiments of the present invention;

[0030] Figure 3 This is a schematic diagram of the voltage regulator structure according to one or more embodiments of the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of a miniature central control unit according to one or more embodiments of the present invention;

[0032] Figure 5 This is a schematic diagram of the internal structure of the voltage regulator according to one or more embodiments of the present invention;

[0033] Figure 6 This is a schematic diagram of the installation structure of the cover beam and the pressure stabilizer according to one or more embodiments of the present invention;

[0034] Figure 7 This is a schematic diagram showing the connection relationship between the miniature central control unit, the earth pressure gauge, and the magnetofluid valve according to one or more embodiments of the present invention.

[0035] In the diagram: the spacing or dimensions between parts have been exaggerated to show their positions; the diagram is for illustrative purposes only.

[0036] The components include: 1. Cover beam; 1-1. Precast top cover plate; 1-2. Precast side guide beam; 2. Pressure stabilizer; 2-1. Inner rib of membrane bag; 3. Miniature central control unit; 3-1. LCD screen; 3-2. Adjustment and reset button; 3-3. Earth pressure gauge signal line interface; 3-4. Power switch; 3-5. Fixing ring; 3-6. Magnetofluvial signal line interface; 4. Shielded signal line; 5. Earth pressure gauge; 6. Digital pressure gauge; 7. Magnetofluvial; 8. Guide pipe. Detailed Implementation

[0037] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0038] As described in the background section, while existing anti-soil displacement devices can eliminate the impact of soil displacement piles, they cannot eliminate the impact of lateral deformation of the surcharge stratum on the side piles. They are not only cumbersome to operate, but also cannot be reused and require new trenching. They are obviously unsuitable for surcharge plants with limited usable area. Furthermore, anti-soil displacement devices with pressure water bladder structures lack corresponding water pressure monitoring and adjustment devices. As dewatering construction progresses, the consolidation and settlement of the stratum will cause changes in the pressure of the pressure water bladder, resulting in changes in the stress on the protected side. In order to solve the above technical problems, this invention proposes an active unloading device for the side pile lateral pressure of large surcharge plants and a construction method.

[0039] Example 1

[0040] In a typical embodiment of the present invention, such as Figures 1-7 As shown, an active unloading device for the side pressure of the side piles of a large slab building is proposed, including a cover beam 1, a pressure stabilizing body 2, a micro central controller 3, a shielded signal line 4, and an earth pressure gauge 5. The cover beam 1 is set on the top of the pressure stabilizing body 2. The micro central controller 3 is connected to the pressure stabilizing body 2 and the earth pressure gauge 5 respectively through the shielded signal line 4. Waterproofing treatment is done at the connection port and the position of the micro central controller 3 is fixed.

[0041] The cap beam 1 and the stabilizing body 2 are placed in the trench excavated in the edge pile protection area. The cap beam 1 is installed on top of the stabilizing body 2 and fits against the top of the stabilizing body 2. This arrangement allows the cap beam 1 to not only protect the top of the stabilizing body 2 from external damage, but also to restrain the stabilizing body 2. When the surcharge stratum that has undergone consolidation settlement is laterally squeezed towards the surrounding trench area, the laterally squeezed soil will directly act on the stabilizing body 2. Due to the restraining effect of the cap beam 1, the pressure inside the stabilizing body 2 will tend to stabilize after rising to a certain value, which is convenient for subsequent soil pressure detection.

[0042] Specifically, the cap beam 1 consists of a precast top cover 1-1 and a precast side guide beam 1-2. Both the precast top cover 1-1 and the precast side guide beam 1-2 are precast concrete structures. The grade can be arbitrarily selected from C30 to C50 according to the actual needs of the site. The size is designed based on the load conditions and the size of the trench, and then processed and produced in the precast concrete plant.

[0043] like Figure 2As shown, the precast top cover 1-1 has an arched structure. The arched structure not only saves on the amount of concrete used in the precast top cover 1-1, but also improves the bearing capacity of the precast top cover 1-1. When the precast top cover 1-1 is under pressure, the pressure will diffuse from the top to both ends. At the same time, a precast side guide beam 1-2 is set at the bottom of both ends of the precast top cover 1-1. While sharing the pressure, it can also guide and constrain the pressure stabilizing body 2, and prevent the collapse of the trench sidewall.

[0044] The pressure stabilizer 2 is set between two prefabricated side guide beams 1-2. Specifically, the pressure stabilizer 2 is a sealed waterproof membrane bag structure, which is customized according to the scale of the plant's surcharge and actual usage requirements. It needs to be placed in sections and blocks in the excavated trench, mainly considering the heterogeneity of the surcharge strata in the plant area, which may lead to inconsistent lateral deformation. This can achieve the purpose of segmented and zoned control of the side pile side pressure.

[0045] like Figure 3 As shown, a guide pipe 8 is provided at the top of the side wall of the pressure stabilizer 2. The guide pipe 8 is a rigid pressure-bearing pipe. Since the pressure stabilizer 2 is a sealed waterproof membrane structure, it is only necessary to perform heat bonding treatment at the end where the pressure stabilizer 2 is connected to the guide pipe 8 to achieve installation and sealing, which is convenient to operate.

[0046] It is understood that in other embodiments, a waterproof connector can also be used to connect the voltage stabilizer 2 and the flow guide 8. When a waterproof connector is used, the waterproof connector needs to be pre-installed on the voltage stabilizer 2 and connected to the flow guide 8 by threads. As long as a sealed installation can be achieved, no further restrictions are imposed here.

[0047] A magnetic flow valve 7 is provided at the end of the flow guide pipe 8 away from the pressure regulator 2. One end of the magnetic flow valve 7 is connected to the flow guide pipe 8 by a thread, and the other end of the magnetic flow valve 7 is a free end that is thrown out to an empty space to discharge the liquid in the pressure regulator 2. A digital pressure gauge 6 is installed on the upper part of the magnetic flow valve 7 to monitor the liquid pressure in the pressure regulator.

[0048] The liquid inside the pressure stabilizer 2 is a mixture of water and industrial alcohol, which can prevent freezing and other phenomena, avoid the liquid inside the pressure stabilizer 2 from freezing due to low winter temperatures, and ensure the working effect of the pressure stabilizer 2 in winter.

[0049] Of course, it is understandable that in other embodiments, a heating mechanism and a temperature sensor can also be set separately. When the liquid temperature inside the pressure regulator 2 is lower than the set value, the heating mechanism will automatically heat it. No matter what measures are taken, as long as the liquid inside the pressure regulator 2 can be prevented from freezing, there are no further restrictions here.

[0050] like Figure 5As shown, the voltage stabilizer 2 has several non-continuous membrane bag inner ribs 2-1 arranged at equal intervals inside. The voltage stabilizer 2 has a cuboid structure with an internal cavity. The membrane bag inner ribs are arranged vertically in the internal cavity. The height of the membrane bag inner ribs is less than the height of the internal cavity of the voltage stabilizer. There is a gap between the top of the membrane bag inner ribs and the top wall of the voltage stabilizer, and there is also a gap between the bottom of the membrane bag inner ribs and the bottom wall of the voltage stabilizer.

[0051] The inner rib 2-1 of the membrane bag is made of composite fiber material, which can constrain the deformation of the middle position of the pressure stabilizer 2 after the liquid fills the pressure stabilizer 2, prevent excessive compression on the side piles, facilitate the constraint of the shape of the membrane bag, and prevent excessive stress concentration in the middle after the liquid fills the bag, which would affect the stability of the formation.

[0052] Multiple inner ribs 2-1 are provided in the membrane bag, and the multiple inner ribs 2-1 are spaced apart and evenly distributed in the pressure stabilizer body. The inner ribs 2-1 are strip-shaped, and the multiple inner ribs 2-1 are arranged parallel to each other.

[0053] like Figure 4 As shown, the miniature central control unit 3 is the core control component, mainly composed of a rechargeable lithium battery, a servo microcontroller, an LCD screen 3-1, and many control circuits. It is equipped with a waterproof protective shell, and a fixing ring 3-5 is set on the side of the waterproof protective shell, which can fix the miniature central control unit 3 at a certain height on the side wall of the main structure of the factory for easy operation.

[0054] The waterproof protective shell of the miniature central control instrument 3 is also equipped with several magnetic flow valve signal line interfaces 3-6 and several earth pressure gauge signal line interfaces 3-3. These can be connected to the magnetic flow valve 7 and the earth pressure gauge 5 respectively through the shielded signal line 4, so that one miniature central control instrument 3 can simultaneously monitor and adjust the pressure signals of multiple pressure stabilizers 2 and earth pressure gauges 5, thereby achieving the purpose of segmented and zoned control of the side pile side pressure.

[0055] The waterproof protective shell of the miniature central control unit 3 is equipped with a power switch 3-4 and an adjustment and reset button 3-2. When the miniature central control unit 3 malfunctions, it can be manually controlled and adjusted to improve the adaptability of the central control electronic circuit system of the miniature central control unit 3 to complex environments.

[0056] Earth pressure gauge 5 is a vibrating wire earth pressure gauge with high monitoring accuracy, stable signal transmission, and its range can be customized according to actual needs.

[0057] When making connections, a four-core shielded signal cable is selected as the shielded conductor. In this embodiment, a copper conductor with an insulation layer of metal foil inner layer of Φ8mm is selected as the shielded signal cable 4. In order to prevent the complex electromagnetic environment that may occur in the factory area from interfering with the pressure signal, the stable transmission of the monitoring signal can be achieved, and the misjudgment phenomenon of the micro central control instrument 3 caused by numerical error can be basically eliminated.

[0058] Several earth pressure gauges 5 are installed. The earth pressure gauges 5 are pressed into the stratum of the plant area by mechanical equipment and are as close as possible to the side piles. The pressing depth is adjusted according to actual needs. Several earth pressure gauges 5 are distributed at multiple points inside the side piles to monitor the earth pressure in different areas of the side piles.

[0059] The device has a simple structure, and its installation process is similar to that of a typical diaphragm wall, making it acceptable and usable by on-site construction personnel. It can accurately control the lateral pressure of the side piles, enabling active unloading of excessive lateral pressure. The pressure stabilizer can be reused multiple times, avoiding one-time waste. It can break the continuity of lateral deformation between the surcharged soil and the soil in the side pile area. It can significantly reduce the foundation treatment costs of the surcharged soil, and monitoring of the active unloading process of the side pile lateral pressure can be achieved with relatively low labor costs.

[0060] Example 2

[0061] In another typical embodiment of this application, a method for actively unloading the side pressure of the side piles of a large surcharge building as described in Embodiment 1 is provided as follows:

[0062] The dimensions of the side pile protection zone and the trench excavation are determined based on the scale of the shovel loading area. The specific dimensions of the stabilizing body 2 are designed and manufactured based on the shovel loading conditions and trench dimensions. The block dimensions of the precast top cover plate 1-1 and precast side guide beam 1-2 in the cover beam 1 are further designed. The cover beam 1 is manufactured in the precast concrete plant.

[0063] Heavy construction machinery, such as excavators, is used to press earth pressure gauges 5 into the soil strata at multiple points inside the side piles, and shielded signal lines 4 are thrown out to the ground surface.

[0064] Install and fix the miniature central control unit 3 on the side wall of the factory building. Connect the shielded signal line 4 of the earth pressure gauge 5 to the earth pressure gauge signal line interface 3-3 on the side wall of the miniature central control unit 3. Turn on the miniature central control unit for debugging and monitor the lateral pressure in advance to ensure stable transmission of the earth pressure gauge monitoring signal and ensure stable and reliable monitoring data.

[0065] Before lowering the pressure regulator 2, first connect the pressure regulator 2 to the guide pipe 8, lead the guide pipe to one side, install the magnetic flow valve 7 on the guide pipe 8, install the digital pressure gauge 6 on the magnetic flow valve 7, connect the magnetic flow valve 7 to the shielded signal line 4, swing the shielded signal line 4 connected to the magnetic flow valve to the position of the micro central controller 3, and connect the signal line to the magnetic flow valve signal line interface 3-6 on the micro central controller 3 to ensure stable signal transmission;

[0066] Measurements and lines were laid out at the perimeter of the loading plant area near the edge piles to accurately locate the planned excavation area of ​​the membrane bag. Precast side guide beams 1-2 were placed along the excavation edge line during the trench excavation to prevent side wall collapse. After the precast side guide beams 1-2 were installed, the pressure stabilizer 2 was lowered into the trench, and a mixture of water and industrial alcohol was promptly injected into it through the diversion pipe 8. After overflow, the magnetic flow valve 7 was closed to maintain constant pressure.

[0067] After confirming that all components of the pressure stabilizer 2 are working properly, place the precast top cover plate 1-1 on the precast side guide beam 1-2 and overlap it to complete the laying of the active unloading device for the side pile side pressure.

[0068] During the loading process within the plant area, loading can be carried out on the precast top cover plate without damaging the sealed waterproof membrane bag. As the loading time in the plant area increases, the soil will undergo consolidation settlement. With the increase in the amount of load and the loading time in the plant area, the loaded soil that has undergone consolidation settlement will be squeezed laterally towards the surrounding trench area. The laterally squeezed soil will directly act on the pressure stabilizing body 2. Due to the constraint effect of the precast top cover plate 1-1, the liquid pressure in the pressure stabilizing body 2 will rise to a certain value and then tend to stabilize and continue to transmit the pressure to the side pile area where the earth pressure gauge 5 is buried, causing the side pile lateral pressure to rise, that is, the pressure monitoring reading of the earth pressure gauge 5 to rise.

[0069] As the consolidation settlement of the surcharged strata gradually increases, the lateral displacement of the soil will continue to increase, causing the pressure of the stabilizer body 2 or the lateral pressure of the side pile to exceed the critical threshold. After the micro central control instrument 3 detects that the soil pressure on the pile side and the pressure inside the stabilizer body 2 have reached the threshold, it controls the opening of the regulating magnetic flow valve 7 to discharge the mixed liquid from the guide pipe 8 until the pressure inside the stabilizer body 2 drops to the set value. Then, the micro central control instrument 3 controls the closing of the magnetic flow valve 7 to complete one active unloading adjustment operation.

[0070] As the mixture in the pressure stabilizer 2 decreases, the two side walls of the trench will gradually close, and the cover beam 1 will be damaged. The pressure stabilizer 2 will be pulled out of the trench, and the trench will be re-excavated according to the predetermined dimensions using mechanical equipment to replace the cover beam 1.

[0071] Check the sealing and integrity of the pressure stabilizer 2. If it is damaged, replace the pressure stabilizer 2. If the pressure stabilizer 2 is confirmed to be intact, lower it into the newly expanded trench. Repeat the above steps to achieve long-term active unloading of the side pressure of the surcharge plant side piles.

[0072] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A large-scale slab loading plant side pile side pressure active unloading device, characterized in that, The device includes a pressure stabilizer, which has an internal cavity filled with liquid; the sidewall of the pressure stabilizer is connected to a flow guide to discharge the liquid inside the pressure stabilizer, and the flow guide is equipped with a magnetic flow valve, which is connected to a central control unit, which is also connected to an earth pressure gauge. The pressure stabilizer is a sealed waterproof membrane bag. A beam plate is set on the top of the pressure stabilizer. The beam plate includes a precast top cover plate. The precast top cover plate has an arched structure. Precast side guide beams are set at the bottom of both ends of the precast top cover plate. The pressure stabilizer is set between the two precast side guide beams.

2. The active unloading device for the side pressure of the side piles of a large storage building as described in claim 1, characterized in that, The liquid filling the pressure regulator is a mixture of water and industrial alcohol.

3. The active unloading device for the side pressure of the side piles of a large-scale shovel dam as described in claim 1 or 2, characterized in that, The internal cavity of the voltage stabilizer is provided with multiple membrane bag inner ribs arranged vertically.

4. The active unloading device for the side pressure of the side piles of a large-scale shovel dam as described in claim 3, characterized in that, The height of the inner rib of the membrane bag is less than the height of the internal cavity of the voltage stabilizer, and there is a gap between the two ends of the inner rib of the membrane bag and the inner wall of the voltage stabilizer.

5. The active unloading device for the side pressure of the side piles of a large-scale shovel dam as described in claim 3, characterized in that, The inner ribs of the membrane bag are made of composite fiber material.

6. The active unloading device for the side pressure of the side piles of a large storage building as described in claim 3, characterized in that, Multiple ribs are provided inside the membrane bag, and the multiple ribs are spaced apart and evenly distributed in the pressure stabilizing body.

7. The active unloading device for the side pressure of the side piles of a large storage building as described in claim 3, characterized in that, The inner ribs of the membrane bag are strip-shaped, and multiple inner ribs of the membrane bag are arranged parallel to each other; the voltage stabilizer has a cuboid structure.

8. The active unloading device for the side pressure of the side piles of a large storage building as described in claim 1, characterized in that, One end of the magnetic flow valve is connected to the guide pipe, and the other end of the magnetic flow valve is a free end to discharge the liquid in the pressure regulator body. The magnetic flow valve is connected to a digital display pressure gauge.

9. The operating method of the active unloading device for the side pressure of the side piles of a large storage building as described in any one of claims 1-8, characterized in that, Includes the following steps: Earth pressure gauges are inserted into the soil strata at multiple points inside the side piles. The earth pressure gauges are connected to the central control instrument to monitor the lateral pressure in advance. Measurements were taken at the perimeter of the loading plant area near the edge piles to locate the proposed excavation area for the pressure stabilizing body. The pressure stabilizing body was then lowered into the trench, and liquid was promptly injected into it through the diversion pipe. After overflow, the magnetic flow valve was closed to maintain constant pressure. When the surcharged stratum is laterally extruded towards the surrounding trench area, the laterally extruded soil directly acts on the pressure stabilizing body. After the liquid pressure in the pressure stabilizing body rises to the set value, it continues to transmit the pressure to the side pile area where the earth pressure gauge is buried, causing the side pile lateral pressure to rise. After the soil pressure on the pile side and the pressure inside the stabilizing body reach the threshold, the magnetic flow valve opens and discharges liquid from the guide pipe until the pressure inside the stabilizing body drops to the set value, then the magnetic flow valve closes, realizing the active unloading of the side pressure of the pile.

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