Active control system for atmospheric influence depth in expansive soil area and application method thereof

Abstract

The present invention relates to an active regulation system and an application method for the atmospheric influence depth in expansive soil areas. The active regulation system includes a regulation outer cavity, an active water absorption structure, a force application structure, a force adjustment structure, a pumping device, and a drainage device. Among them, the regulation outer cavity is composed of a regulation outer shell and a regulation inner shell. The active water absorption structure is installed between the regulation outer shell and the regulation inner shell. The force application structure is installed above the regulation outer cavity and can apply pressure to the active water absorption structure. A communication is formed between the water storage inner cavity in the middle of the regulation inner shell and the position where the active absorption structure is located. The pumping device is arranged at the bottom of the water storage inner cavity and is connected to the drainage device located above the force application structure through a central rod. The advantages of the present invention are as follows: It can actively absorb capillary water bodies (above the groundwater level) within the atmospheric influence depth, regulate the actual atmospheric influence depth, eliminate the instability of foundation soil affected by capillary water bodies, and ensure the construction and use safety of building structures.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation treatment, and in particular to an active regulation system for the atmospheric influence depth in expansive soil areas and an application method thereof. Background Art

[0002] As is well known, below the groundwater level, the soil is in a saturated state of groundwater treatment. Above the groundwater level, due to the influence of capillary action, there will be a certain amount of capillary water distributed above the groundwater level. When designing the foundation of buildings and structures, especially in expansive soil areas, the atmospheric influence depth will be considered. Capillary water is the main factor causing the atmospheric influence depth in expansive soil areas. The atmospheric influence depth refers to the effective depth of soil uplift and settlement deformation caused by factors such as precipitation and evaporation under the action of natural climate. Its value should be determined by the deep deformation observation, water content observation, and ground temperature observation data of the soil in each climate zone. If there is no data, it can also be taken according to the regulations in relevant specifications. Therefore, when designing buildings and structures in expansive soil areas, especially for those with high settlement requirements and deformation requirements during the operation period after completion, if the atmospheric influence depth can be regulated to eliminate the influence of capillary water in the foundation soil within the atmospheric influence depth due to precipitation, evaporation, etc., it will be very important for the operation safety of buildings and structures. In the prior art, in most cases, in expansive soil areas, special foundation structure designs are adopted, such as placing the building foundation below the expansive soil layer or below the stable groundwater level. However, the structures within the atmospheric influence depth above the stable groundwater level will still be affected by the mechanical effects caused by the expansion of the foundation soil when it gets wet and shrinkage when it loses water.

[0003] Therefore, an active regulation system for the atmospheric influence depth in expansive soil areas that can absorb and discharge capillary water within the atmospheric influence depth, eliminate the deformation influence of expansive soil within the atmospheric influence depth, and ensure the structural safety and operation safety of buildings and structures is particularly important. Summary of the Invention

[0004] The purpose of the present invention is to provide an active regulation system for the atmospheric influence depth in expansive soil areas and an application method according to the deficiencies of the above prior art. It can actively absorb and discharge the capillary water within the atmospheric influence depth to the outside. The main water-absorbing body can be taken out to dry or replaced according to the usage situation. The water-absorbing main body structure is placed underground for a long time, and a set of force-regulating structure and drainage equipment can meet the daily use of multiple sets of underground water-absorbing main body structures in the same area for the active regulation operation of the atmospheric influence depth in expansive soil areas.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] An active regulation system for the atmospheric influence depth in expansive soil areas, characterized in that: the active regulation system includes a regulation outer cavity, an active water absorption structure, a force application structure, a force adjustment structure, a pumping device and a drainage device. The regulation outer cavity is composed of a regulation outer shell and a regulation inner shell. The active water absorption structure is installed between the regulation outer shell and the regulation inner shell. A water absorption body that can communicate with the outside is provided on the outer wall of the regulation outer shell. The force application structure is installed above the regulation outer cavity and can apply pressure to the active water absorption structure. A cavity is formed in the middle of the regulation inner shell to form a water storage inner cavity. A communication is formed between the water storage inner cavity and the position where the active water absorption structure is located. The pumping device is arranged at the bottom of the water storage inner cavity and is connected to the drainage device located above the force application structure through a central rod.

[0007] The regulation outer shell is set as a double-layer water absorption body, including an outer layer water absorption body and an inner layer water absorption body. Water absorption channels are arranged at intervals on the inner layer water absorption body, and one end of the water absorption channel is communicated with the active water absorption structure.

[0008] The active water absorption structure includes a main water absorption body, a permeable outer shell, a drainage vertical pipe and a filter plate. The permeable outer shell is arranged on the side of the main water absorption body close to the regulation outer shell. A buckle for clamping with the regulation outer shell is arranged at the top of the permeable outer shell. The active water absorption structure is detachably connected and fixed to the regulation outer shell through the buckle. The drainage vertical pipe is arranged at the bottom of the main water absorption body, and the filter plate is arranged at the bottom of the drainage vertical pipe.

[0009] The regulation outer shell and the regulation inner shell form a water absorption inner cavity. The active water absorption structure is installed in the water absorption inner cavity. A filter body is arranged at the bottom of the water absorption inner cavity. The active water absorption structure installed in the water absorption inner cavity is communicated with the water storage inner cavity in the middle of the regulation inner shell through the filter body.

[0010] The force application structure applies pressure to the active water absorption structure through the force application of the force adjustment structure. The force application structure is provided with a plate structure adapted to the regulation outer cavity. The plate structure can be connected to the force adjustment structure through a fixed rod. A pressing plate is arranged at the bottom of the plate structure. The force adjustment structure drives the force application structure to displace and applies pressure to the active water absorption structure through the pressing plate.

[0011] A number of the active water absorption structures are arranged in the force adjustment outer cavity, and the force application structure is provided with pressing plates corresponding to each of the active water absorption structures one by one.

[0012] The force adjustment structure includes an oil cavity and a force adjustment oil rod. The force adjustment oil rod has a telescopic section. The force adjustment oil rod can be telescoped under the action of the oil cavity. The bottom end of the force adjustment oil rod is connected to the fixed rod.

[0013] A fixing screw hole and a fixing nut are provided in the middle of the force adjusting structure, wherein the fixing screw hole is used for connecting with the drainage device, and the fixing nut is used for connecting with the central rod.

[0014] An application method of the above-mentioned active regulation system for the atmospheric influence depth in expansive soil areas is characterized in that: according to the plane structure of the existing building and the value of the atmospheric influence depth within the site where the building is located, a certain number and a certain depth of active regulation systems are implanted around the existing building, and the capillary water bodies within the atmospheric influence depth range around the existing building are excluded through the active regulation systems, and the deformation influence of the expansive soil within the atmospheric influence depth range is adjusted.

[0015] When several of the active regulation systems are implanted, some of the active regulation systems are only provided with a regulation outer cavity, an active water absorption structure, a force application structure and a pumping device; a set of force adjusting structure and a set of drainage device are used to pump and drain each active regulation system in sequence.

[0016] The advantages of the present invention are: it can actively absorb the capillary water bodies (above the groundwater level) within the atmospheric influence depth range, regulate the actual atmospheric influence depth, eliminate the instability of the foundation soil affected by the capillary water bodies, and ensure the construction and use safety of the building structure; the structure is simple and reasonable, the functions are complete, it has strong operability, and is suitable for popularization. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the present invention;

[0018] Figure 2 It is a schematic structural diagram of the cooperation between the regulation outer cavity and the force application structure in the present invention;

[0019] Figure 3 It is a schematic structural diagram of the active water absorption structure in the present invention;

[0020] Figure 4 It is a schematic structural diagram of the force application structure in the present invention;

[0021] Figure 5 It is a schematic structural diagram of the cooperation between the force application structure and the force adjusting structure in the present invention;

[0022] Figure 6 It is a schematic layout structural diagram of the present invention. Detailed Embodiments

[0023] The features of the present invention and other related features are further described in detail below through embodiments with reference to the drawings for the understanding of those skilled in the same industry:

[0024] Such as Figure 1-6As shown in the figure, the markings 1-41 in the figure respectively represent: the regulating outer cavity 1, the active water absorption structure 2, the force application structure 3, the force regulating structure 4, the central rod 5, the pumping equipment 6, the drainage channel 7, the drainage equipment 8, the regulating outer shell 9, the regulating inner shell 10, the outer layer water absorption body 11, the inner layer water absorption body 12, the water absorption channel 13, the clamping groove 14, the water absorption inner cavity 15, the filter body 16, the water storage inner cavity 17, the main water absorption body 18, the buckle 19, the drainage vertical pipe 20, the permeable outer shell 21, the filter plate 22, the clamping ring 23, the pressing plate 24, the middle bottom plate 25, the middle vertical plate 26, the middle vertical cavity 27, the oil cavity 28, the force regulating oil rod 29, the expansion joint 30, the movable gasket 31, the fixing ring 32, the fixing rod 33, the control button 34, the movable nut 35, the fixing screw hole 36, the fixing nut 37, the connecting rod 38, the tunneling end 39, the existing building structures 40, and the active regulation system 41.

[0025] Embodiment: As Figures 1 to 6 shown, the active regulation system for the atmospheric influence depth in expansive soil areas in this embodiment mainly consists of eight parts: the regulating outer cavity 1, the active water absorption structure 2, the force application structure 3, the force regulating structure 4, the central rod 5, the pumping equipment 6, the drainage channel 7, and the drainage equipment 8; in expansive soil areas, each component works together to actively absorb capillary water bodies (above the groundwater level) within the atmospheric influence depth range, regulate the actual atmospheric influence depth, eliminate the instability of the foundation soil affected by capillary water bodies, and ensure the construction and use safety of building structures.

[0026] As Figure 1 and Figure 2 shown, the regulating outer cavity 1 creates the main regulation environment for the active regulation system. The outermost side of the regulating outer cavity 1 is the regulating outer shell 9, and the outer surface of the regulating outer shell 9 is in direct contact with the foundation soil. The regulating inner shell 10 is distributed inside the regulating outer cavity 1. The regulating outer shell 9 and the regulating inner shell 10 are spaced apart, and the intermediate region formed between the two is used as the water absorption inner cavity 15, while the intermediate cavity region of the regulating inner shell 10 is the water storage inner cavity 17. The water absorption inner cavity 15 and the water storage inner cavity 17 are mainly separated by the regulating inner shell 10.

[0027] The central rod 5 is located inside the water storage inner cavity 17 and is vertically arranged along the height direction of the water storage inner cavity 17; the bottom of the central rod 5 is connected to the pumping equipment 6, and the inside of the central rod 5 is hollow to serve as the drainage channel 7 of the active regulation system.

[0028] The top local part of the control housing 9 is composed of a double-layer structure, namely an outer water-absorbing body 11 and an inner water-absorbing body 12. Water-absorbing channels 13 are distributed at intervals on the inner water-absorbing body 12. The outer water-absorbing body 11 and the inner water-absorbing body 12 mainly play an auxiliary water-absorbing role and realize the function of introducing capillary water in the foundation soil into the water-absorbing inner cavity 15 inside the control outer cavity 1. In this embodiment, the main component of the active control system for realizing water absorption is the active water-absorbing structure 2 installed in the water-absorbing inner cavity 15.

[0029] In this embodiment, for the capillary water in the expansive soil within the depth range affected by the atmosphere, under the absorption of the outer water-absorbing body 11 and the inner water-absorbing body 12, the capillary water can be more easily absorbed by the active water-absorbing structure 2 through the water-absorbing channels 13.

[0030] Combined Figure 2 and Figure 3 As shown, clamping grooves 14 are distributed at the top of the control housing 9. The active water-absorbing structure 2 is mainly detachably connected to the control housing 9 in a snap-fit manner through the snap 19 located at the top of the structure, and the main water-absorbing body 18 of the active water-absorbing structure 2 is embedded in the water-absorbing inner cavity 15. The outer diameter of the active water-absorbing structure 2 is slightly smaller than the inner diameter of the water-absorbing inner cavity 15. When a force is applied to the active water-absorbing structure 2 through the force application structure 3, the force application effect can be improved. The bottom of the water-absorbing inner cavity 15 is connected to the filter body 16. The filter body 16 can ensure that there are no large-particle foreign matters such as foundation soil in the groundwater entering the water storage inner cavity 17, ensuring that the pumping equipment 6 is not blocked and the working performance is stable.

[0031] Combined Figure 1 System Figure 3 As shown, a permeable outer shell 21 is distributed in the area of the active water-absorbing structure 2 close to the control housing 9. The permeable outer shell 21 also serves to filter the inhaled capillary water. The main water-absorbing body 18 is distributed inside the active water-absorbing structure 2. The main water-absorbing body 18 has a strong active water-absorbing function and a strong adsorption capacity for the capillary water within the corresponding control range. The main water-absorbing body 18 can be made of a material with strong water-absorbing performance and capable of being compressed and deformed. A drain vertical pipe 20 is distributed between the permeable outer shell 21 and the bottom of the main water-absorbing body 18. When the main water-absorbing body 18 is compressed by the pressing plate 24 of the force application structure 3, the water inside the main water-absorbing body 18 can be discharged downward into the water-absorbing inner cavity 15. A filter plate 22 is distributed at the bottom of the drain vertical pipe 20. The filter plate 22 mainly serves to filter the water and retain the large-particle foreign matters in the water on the filter plate 22. When the active water-absorbing structure 2 is taken out upward, the foreign matters on the filter plate 22 can be cleaned up together.

[0032] In this embodiment, as Figure 3As shown, a snap ring 23 protruding inward is distributed at the top of the active water absorption structure 2. When the pressing plate 24 is lifted upward, the pressing plate 24 exerts an upward force on the snap ring 23, and then the active water absorption structure 2 is lifted out of the water absorption inner cavity 15, so as to process the active water absorption structure 2.

[0033] Combined with Figure 1 and Figure 4 As shown, the force application structure 3 surrounds the outside of the central rod 5 through the intermediate bottom plate 25 and is embedded in the active water absorption structure 2 through the pressing plate 24. At the corresponding position of the intermediate bottom plate 25 and the regulation inner shell 10, there are upward protruding intermediate vertical plates 26, and the intermediate vertical plates 26 surround to form an intermediate vertical cavity 27. The distance between the upper surface of the pressing plate 24 and the lower surface of the intermediate bottom plate 25 and the inner depth of the intermediate vertical cavity 27 are the compression range of the pressing plate 24 on the main water absorption body 18 and also the regulation range. The connection area between the pressing plate 24 and the force application structure 3 is connected by a connecting rod 38, and the pressing plate 24 is in a separable state according to the use requirements.

[0034] Combined with Figure 4 and Figure 5 As shown, vertical fixing rods 33 are distributed in the area between adjacent intermediate vertical cavities 27 on the upper surface of the intermediate bottom plate 25. The force regulation structure 4 is mainly connected to the force application structure 3 by embedding a fixing ring 32 at the bottom of the force regulation oil rod 29 into the fixing rods 33. A movable gasket 31 is distributed at the contact part between the fixing ring 32 and the force regulation oil rod 29, and the fixing ring 32 can freely rotate around the movable gasket 31. At the same time, the movable gasket 31 realizes the flexible transmission of the acting force of the force regulation oil rod 29 to the force application structure 3, increasing the engineering applicability of the active regulation system. The force regulation oil rod 29 is provided with a telescopic joint 30, and the operator can adjust the oil pressure in the oil cavity 28 through the control button 34 at the top of the oil cavity 28, so as to control the telescopic movement of the force regulation structure 4.

[0035] As Figure 5 shown, a movable nut 35 is distributed at the end of the drainage device 8, and it can be connected to the drainage channel 7 inside the central rod 5 through a fixing screw hole 36 and a fixing nut 37 located inside the force regulation structure 4 in sequence, and the groundwater in the water storage cavity is discharged through the pumping device 6.

[0036] As Figure 2 shown, a tunneling end 39 is distributed at the lowest end of the regulation outer cavity 1, which is convenient for implanting the active regulation system into the swelling soil layer.

[0037] As Figure 6As shown in the figure, in this embodiment, construction is carried out around the existing buildings and structures 40 in the expansive soil area. Through the atmospheric influence depth of the area where it is located, the active regulation system 41 is embedded into a specific depth of the foundation soil, and the capillary water bodies that cause the atmospheric influence depth within the embedded depth range are absorbed and then discharged. At the same time, the main water-absorbing body 18 of the active regulation system can be taken out of the ground for drying treatment and then reused. The regulation outer cavity 1, the active water-absorbing structure 2, the force-applying structure 3, and the pumping equipment 6 are the main components of the active regulation structure and can be usually placed in the foundation soil, while the force-adjusting structure 4 and the drainage equipment 8 can be used as implementation components to cooperate with each main component to complete the absorption and discharge of the capillary water bodies; that is, a set of force-adjusting structure 4 and drainage equipment 8 can meet the repeated use of multiple sets of main components in one area.

[0038] When this embodiment is applied, it has the following application methods:

[0039] The following is the working process of a regulation outer cavity 1. In actual work, a set of force-adjusting structure 4 and drainage equipment 8 can serve multiple regulation outer cavities 1 in sequence. For example Figure 6 As shown in the figure, a circle of active regulation systems 41 is arranged around the existing buildings and structures 40. These active regulation systems 41 all have main components placed in the foundation, namely the regulation outer cavity 1, the active water-absorbing structure 2, the force-applying structure 3, and the pumping equipment 6; while only one set of force-adjusting structure 4 and drainage equipment 8 is adopted.

[0040] (1) According to the plane structure of the existing buildings and structures 40 and the atmospheric influence depth value within the construction site, design the plane distribution position of the active regulation system 41 and its implantation depth in the foundation soil.

[0041] (2) Implant the regulation outer cavity 1 into the foundation soil around the existing buildings and structures 40 at the designed position and depth through the force-applying structure 3 or external instruments.

[0042] (3) After the regulation outer cavity 1 is in place, put the force-applying structure 3 and the active water-absorbing structure 2 together into the water-absorbing inner cavity 15.

[0043] (4) Do a good job in waterproofing the top cavity opening of the regulation outer cavity 1 to prevent surface water from entering the regulation outer cavity 1.

[0044] (5) The outer water-absorbing body 11, the inner water-absorbing body 12, and the main water-absorbing body 18 absorb the capillary water bodies in the foundation soil; after several days, connect the fixing ring 32 at the bottom of the force-adjusting structure 4 to the fixing rod 33 of the force-applying structure 3, and rotate the force-adjusting oil rod 29 to the bottom area of the movable gasket 31 so that the fixing ring 32 and the fixing rod 33 are tightly connected by threads.

[0045] (6) Insert the movable nut 35 of the drainage device 8 into the fixed screw hole 36 in the central area of the oil chamber 28. At the same time, insert the fixed nut 37 into the position of the port of the drainage channel 7 at the top of the central rod 5.

[0046] (7) Through the control button 34, adjust the oil pressure in the oil chamber 28 so that the force-adjusting oil rod 29 extends through the expansion joint 30, applying a downward pressure on the force-applying structure 3. The pressing plate 24 synchronously compresses the main water-absorbing body 18. The capillary water in the main water-absorbing body 18 flows through the drainage vertical pipe 20, successively passing through the filter plate 22 and the filter body 16, and then enters the water storage inner cavity 17.

[0047] (8) Control the pumping device 6 to enter the working state through the control button 34, and discharge the water in the water storage inner cavity 17 underground successively through the drainage channel 7 inside the central rod 5 and the drainage device 8.

[0048] (9) Through the control button 34, adjust the oil pressure in the oil chamber 28 so that the force-adjusting oil rod 29 shortens, applying an upward pulling force on the force-applying structure 3. The pressing plate 24 disengages from the main water-absorbing body 18 in the active water-absorbing structure 2 and synchronously moves upward until it contacts the snap ring 23. The pressing plate 24 applies an upward pulling force on the active water-absorbing structure 2, and the active water-absorbing structure 2 moves out of the water absorption inner cavity 15.

[0049] (10) Rotate the pressing plate 24, remove the pressing plate 24, and move away the force-applying structure 3.

[0050] (11) Take out the main water-absorbing body 18, and perform drying, sunning or replacement treatment on the main water-absorbing body 18 according to the usage situation.

[0051] After the main water-absorbing body 18 is processed to meet the usage requirements, put the main water-absorbing body 18 back into the active water-absorbing structure 2, and repeat step (3) to start the next cycle of active water absorption regulation work.

[0052] In the specific implementation of this embodiment: Since the regulation outer cavity 1 needs to be placed underground for a long time, materials that are green and environmentally friendly, with strong structural stability and corrosion resistance can be used for its production. The regulation outer shell 9 and the regulation inner shell 10 need to meet their respective usage functions while meeting the material requirements of the overall structure of the regulation outer cavity. Since the active water absorption structure 2 needs to be pressed into or removed from the regulation outer cavity, the water-permeable outer shell 21 located outside the active water absorption structure needs to have a certain strength, stiffness and structural stability. The main water absorption body 18 is the main structure of the active water absorption component, and it is necessary to discharge the water inside the main water absorption body under the repeated pressure of the pressing plate. Therefore, the main water absorption body can be made of materials with strong active water absorption function, compressive shrinkage, pressure loss and rebound, and reusable materials. The force application structure 3 needs to be made of materials with strong structural stability, rigidity and capable of withstanding large forces. The force regulation structure 4 and the drainage device 8 need to move repeatedly during operation, so materials with lighter weight can be used. At the same time, the force regulation structure 4 needs to have strong structural stability and stiffness and be able to withstand large forces. For the remaining components, materials that are convenient for construction and operation can be used under the condition of meeting the relevant usage functions.

[0053] Although the above embodiments have detailed the concept and implementation of the object of the present invention with reference to the accompanying drawings, those of ordinary skill in the art can recognize that various improvements and transformations can still be made to the present invention without departing from the scope defined by the claims. Therefore, they are not elaborated here one by one.

Claims

1. An active regulation system for the atmospheric influence depth in expansive soil areas, characterized in that: The active regulation system includes a regulation outer cavity, an active water absorption structure, a force application structure, a force adjustment structure, a water pumping device, and a drainage device. The regulation outer cavity is composed of a regulation outer shell and a regulation inner shell. The active water absorption structure is installed between the regulation outer shell and the regulation inner shell. A water absorption body communicating with the outside is provided on the outer wall of the regulation outer shell. The force application structure is installed above the regulation outer cavity and applies pressure to the active water absorption structure. A cavity is formed in the middle of the regulation inner shell to form a water storage inner cavity, and a communication is formed between the water storage inner cavity and the position where the active water absorption structure is located. The water pumping device is arranged at the bottom of the water storage inner cavity and is connected to the drainage device located above the force application structure through a central rod; The force application structure applies pressure to the active water absorption structure through the force application of the force adjustment structure. The force application structure is provided with a plate body structure adapted to the regulation outer cavity. The plate body structure is connected to the force adjustment structure through a fixing rod. A pressing plate is arranged at the bottom of the plate body structure. The force adjustment structure drives the displacement of the force application structure and applies pressure to the active water absorption structure through the pressing plate; A plurality of the active water absorption structures are arranged in the regulation outer cavity, and the force application structure is provided with pressing plates corresponding to each of the active water absorption structures one by one; The force adjustment structure includes an oil cavity and a force adjustment oil rod. The force adjustment oil rod has a telescopic section. The force adjustment oil rod expands and contracts under the action of the oil cavity. The bottom end of the force adjustment oil rod is connected to the fixing rod.

2. The active control system for the atmospheric influence depth in expansive soil areas according to claim 1, characterized in that: The regulation outer shell is set as a double-layer water absorption body, including an outer layer water absorption body and an inner layer water absorption body. Water absorption channels are spaced apart on the inner layer water absorption body, and one end of the water absorption channel is communicated with the active water absorption structure.

3. The active regulation system for the atmospheric influence depth in expansive soil areas according to claim 1, characterized in that: The active water absorption structure includes a main water absorption body, a permeable outer shell, a drainage vertical pipe, and a filter plate. The permeable outer shell is arranged on one side of the main water absorption body adjacent to the regulation outer shell. A buckle for clamping with the regulation outer shell is arranged at the top of the permeable outer shell. The active water absorption structure is detachably connected and fixed to the regulation outer shell through the buckle. The drainage vertical pipe is arranged at the bottom of the main water absorption body, and the filter plate is arranged at the bottom of the drainage vertical pipe.

4. The active regulation system for the atmospheric influence depth in expansive soil areas according to claim 3, characterized in that: The regulation outer shell and the regulation inner shell form a water absorption inner cavity. The active water absorption structure is installed in the water absorption inner cavity. A filter body is arranged at the bottom of the water absorption inner cavity. The active water absorption structure installed in the water absorption inner cavity is communicated with the water storage inner cavity in the middle of the regulation inner shell through the filter body.

5. The active control system for the atmospheric influence depth in expansive soil areas according to claim 1, wherein: A fixing screw hole and a fixing nut are arranged in the middle of the force adjustment structure. The fixing screw hole is used for connecting with the drainage device, and the fixing nut is used for connecting with the central rod.

6. A method for applying an active control system for the atmospheric influence depth in expansive soil areas described in any one of claims 1 - 5, characterized in that: According to the plane structure of the existing building structure and the value of the atmospheric influence depth within the site where the building structure is located, a certain number and a certain depth of active regulation systems are implanted in the surrounding area of the existing building structure. The capillary water within the atmospheric influence depth range around the existing building structure is excluded through the active regulation system, and the deformation influence of the expansive soil within the atmospheric influence depth range is adjusted.

7. The application method of an active control system for the atmospheric influence depth in expansive soil areas according to claim 6, characterized in that: When several of the active regulation systems are implanted, some of the active regulation systems are only configured to regulate the outer cavity, the active water absorption structure, the force application structure and the pumping device; a set of force regulation structure and a set of drainage devices are used to pump and drain each active regulation system in sequence.

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