CN115652891A - Active control system and application method for atmospheric influence depth in expansive soil area - Google Patents

Abstract

The invention relates to an active regulation and control system for the atmospheric influence depth in an expansive soil area and an application method thereof, wherein the active regulation and control system comprises a regulation and control outer cavity, an active water absorption structure, a force application structure, a force adjustment structure, a water pumping device and a water discharging device, wherein the regulation and control outer cavity is composed of a regulation and control outer shell and a regulation and control inner shell, the active water absorption structure is arranged between the regulation and control outer shell and the regulation and control inner shell, the force application structure is arranged above the regulation and control outer cavity and can apply pressure to the active water absorption structure, a water storage inner cavity in the middle of the regulation and control inner shell is communicated with the active water absorption structure, and the water pumping device is arranged at the bottom of the water storage inner cavity and is connected with the water discharging device positioned above the force application structure through a central rod. The invention has the advantages that: the capillary water body (above the ground water level) in the atmosphere influence depth range can be actively absorbed, the actual atmosphere influence depth is regulated, the instability of the foundation soil influenced by the capillary water body is eliminated, and the construction and use safety of the construction structure is ensured.

Description

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

technical field

The invention relates to the technical field of foundation treatment, in particular to an active control system and an application method for atmospheric influence depth used in expansive soil areas.

Background technique

In recent years, the country's various types of infrastructure construction are in a stage of rapid improvement, and all walks of life are carrying out the construction of infrastructure required for daily production and operation. my country has a vast land area, and expansive soil is widely distributed. Due to its own nature, expansive soil has the characteristics of water absorption, water loss, water loss and shrinkage, etc., so it has a greater impact on buildings located in expansive soil areas. As we all know, below the groundwater level, the soil groundwater is in a saturated state, and above the groundwater level, the groundwater will have a certain amount of capillary water distributed above the groundwater level due to the capillary effect. When designing the foundation of buildings and structures, especially in expansive soil areas, the depth of atmospheric influence will be considered, and capillary water is the main factor causing the depth of atmospheric influence in expansive soil areas. Atmospheric influence depth refers to the effective depth of ups and downs and deformations of soil caused by factors such as precipitation and evaporation under the action of natural climate. Its value should be determined by the deep deformation observation or water content observation and ground temperature observation data of the soil in each climate zone. If there is no data, the value can also be determined according to the regulations in the relevant specifications. Therefore, when designing buildings and structures in expansive soil areas, especially for buildings with high settlement requirements and deformation requirements during the operation period after completion, if the depth of atmospheric influence can be adjusted, the foundation soil in the depth of atmospheric influence due to precipitation and evaporation can be eliminated. The impact of such capillary water bodies will be very important to the operational safety of buildings and structures. Most of the existing technologies are aimed at expansive soil areas, using special foundation structure design, such as placing the foundation of the building under the expansive soil layer or below the stable groundwater level, but above the stable groundwater level is located at the depth of atmospheric influence The structures within the range will still be affected by the mechanics caused by the expansion and contraction of the foundation soil when it encounters water.

Therefore, it can absorb and discharge the capillary water in the expansive soil area within the atmospheric influence depth range, eliminate the deformation influence of expansive soil within the atmospheric influence depth range, and ensure the structural safety and operational safety of buildings and structures. The atmospheric influence depth for expansive soil areas Active regulation system is particularly important.

Contents of the invention

The object of the present invention is to provide an active control system and application method for the depth of atmospheric influence in expansive soil areas according to the above-mentioned deficiencies in the prior art, which can actively absorb and discharge capillary water in the range of atmospheric influence depth to the outside, The main water-absorbing body can be taken out to dry or replaced according to the usage conditions. The main water-absorbing body is built to work underground, and a set of force-adjusting structure and drainage equipment can meet the daily use of multiple sets of underground water-absorbing bodies in the same area. It is used in expansive soil areas. Atmospheric influence depth active regulation operation.

The object of the present invention is realized by the following technical solutions:

An active control system for atmospheric influence depth in expansive soil areas, characterized in that: the active control system includes a control outer cavity, an active water absorption structure, a force application structure, a force adjustment structure, pumping equipment and drainage equipment, wherein the control The outer cavity is composed of a control shell and a control inner shell, the active water absorption structure is installed between the control shell and the control inner shell, and the outer wall of the control shell is provided with a water absorbing body that can communicate with the outside world. The force application structure is installed above the control outer cavity and can apply pressure to the active water absorption structure. The middle part of the control inner shell is provided with a cavity to form a water storage cavity, and the water storage cavity is connected to the active water absorption structure. The locations of the absorbing structures are connected to each other, and the water pumping equipment is arranged at the bottom of the water storage inner cavity and connected to the drainage equipment above the force applying structure through a central rod.

The regulating shell is set as a double-layer water absorbing body, including an outer layer water absorbing body and an inner layer water absorbing body, wherein a water absorbing channel is separated from the inner layer water absorbing body, and one end of the water absorbing channel is connected to the active water absorbing structure connected.

The active water-absorbing structure includes a main water-absorbing body, a water-permeable shell, a drainage standpipe and a filter plate, wherein the water-permeable shell is arranged on the side of the main water-absorbing body close to the regulating shell, and the top of the water-permeable shell is provided with a The buckle that is snapped into the regulating shell, the active water-absorbing structure forms a detachable connection and fixation with the regulating shell through the buckle, the drainage standpipe is arranged at the bottom of the main water-absorbing body, and the The filter plate is arranged at the bottom of the vertical drain pipe.

The control outer shell and the control inner shell form a water-absorbing cavity, the active water-absorbing structure is installed in the water-absorbing cavity, the bottom of the water-absorbing cavity is provided with a filter, and the water-absorbing cavity is installed in the water-absorbing cavity The active water-absorbing structure communicates with the water storage cavity in the middle of the regulating inner shell through the filter body.

The force-applying structure applies pressure to the active water-absorbing structure through the force of the force-adjusting structure, and the force-applying structure is provided with a plate structure that is compatible with the regulating outer cavity, and the plate structure It can be connected with the force-regulating structure through a fixed rod, and a pressing plate is provided at the bottom of the board structure, and the force-adjusting structure drives the displacement of the force-applying structure and applies pressure to the active water-absorbing structure through the pressing plate.

There are several active water-absorbing structures arranged in the force-regulating outer cavity, and the force-applying structures are provided with pressure plates corresponding to each of the active water-absorbing structures.

The force regulating structure includes an oil chamber and a force regulating oil rod. The regulating oil rod has a telescopic joint, and the force regulating oil rod can expand and contract under the action of the oil chamber. The above fixed rod connection.

A fixing screw hole and a fixing nut are provided in the middle of the force regulating structure, wherein the fixing screw hole is used for connecting with drainage equipment, and the fixing nut is used for connecting with the center rod.

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

When several active control systems are implanted, some of the active control systems are only set to control the outer cavity, active water absorption structure, force application structure and pumping equipment; Control system for pumping and drainage.

The advantages of the present invention are: it can actively absorb the capillary water body (above the groundwater level) within the range of the atmospheric influence depth, regulate the actual atmospheric influence depth, eliminate the instability of the foundation soil affected by the capillary water body, and ensure the construction and safety of the structure. The utility model has the advantages of simple and reasonable structure, complete functions, strong operability, and is suitable for popularization.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the coordination structure between the external cavity and the force application structure in the present invention;

Fig. 3 is the structural representation of active water absorption structure in the present invention;

Fig. 4 is the structural schematic diagram of force application structure in the present invention;

Fig. 5 is a schematic diagram of the coordination structure of the force applying structure and the force regulating structure in the present invention;

Fig. 6 is a schematic diagram of an arrangement structure of the present invention.

Detailed ways

The features of the present invention and other related features will be further described in detail below in conjunction with the accompanying drawings through embodiments, so as to facilitate the understanding of those skilled in the art:

As shown in Figures 1-6, the marks 1-41 in the figure respectively represent: control outer cavity 1, active water absorption structure 2, force application structure 3, force adjustment structure 4, central rod 5, pumping equipment 6, drainage channel 7, Drainage equipment 8, regulating shell 9, regulating inner shell 10, outer water absorbing body 11, inner water absorbing body 12, water absorbing channel 13, card slot 14, water absorbing inner cavity 15, filter body 16, water storage inner cavity 17, main absorbing water Body 18, buckle 19, drainage vertical pipe 20, permeable shell 21, filter plate 22, snap ring 23, pressure plate 24, middle bottom plate 25, middle vertical plate 26, middle vertical chamber 27, oil chamber 28, power adjustment oil rod 29 , expansion joint 30, movable gasket 31, fixed ring 32, fixed rod 33, control button 34, movable nut 35, fixed screw hole 36, fixed nut 37, connecting rod 38, driving end 39, existing building structure 40, active Regulatory system41.

Embodiment: As shown in Fig. 1 to Fig. 6, the active regulation and control system for the depth of atmospheric influence used in the expansive soil area in this embodiment is mainly composed of a regulation and control outer cavity 1, an active water absorption structure 2, a force application structure 3, a force regulation structure 4, The central rod 5, pumping equipment 6, drainage channel 7 and drainage equipment 8 are composed of eight parts; in the area of expansive soil, all components work together to realize the active absorption of capillary water within the depth range affected by the atmosphere (above the groundwater level). The depth of atmospheric influence is adjusted to eliminate the instability of foundation soil affected by capillary water, and ensure the safety of construction and use of structures.

As shown in Fig. 1 and Fig. 2, the regulation external cavity 1 creates the main regulation environment for the active regulation system. The outermost side of the control outer cavity 1 is a control shell 9, and the outer surface of the control shell 9 is in direct contact with the foundation soil. The control inner shell 10 is distributed inside the control outer cavity 1, and the control shell 9 and the control inner shell 10 are arranged at intervals. The area is the water storage cavity 17 . The water-absorbing inner cavity 15 and the water-storage inner cavity 17 are mainly separated by regulating the inner shell 10 .

The center rod 5 is located in the water storage cavity 17, and it is vertically arranged along the height direction of the water storage cavity 17; the bottom of the center rod 5 is connected with the pumping equipment 6, and the center rod 5 is hollow inside as the drainage channel 7 of the active control system.

The top part of the regulating shell 9 is composed of a double-layer structure, which are respectively an outer layer water absorber 11 and an inner layer water absorber 12, and the inner layer water absorber 12 is distributed with water absorbing channels 13 at intervals, and the outer layer water absorber 11 and the inner layer water absorber The body 12 mainly plays the role of auxiliary water absorption, and realizes the function of introducing the capillary water body in the foundation soil into the water absorption inner cavity 15 for regulating and controlling the interior of the outer cavity 1; and in this embodiment, the active control system is mainly used to realize the water absorption. Active water-absorbing structure 2 in the inner cavity 15.

In this embodiment, the capillary water body in the expansive soil located within the atmospheric influence depth range can be absorbed by the active water-absorbing structure 2 more easily through the water-absorbing channel 13 under the absorption of the outer layer water-absorbing body 11 and the inner layer water-absorbing body 12 .

As shown in Fig. 2 and Fig. 3, there are card slots 14 distributed on the top of the regulating shell 9, and the active water-absorbing structure 2 mainly forms a buckle-type detachable connection with the regulating shell 9 through the buckle 19 at the top of the structure, and makes the active water-absorbing The main water-absorbing body 18 of the 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 chamber 15, and when a force is applied to the active water-absorbing structure 2 through the force applying structure 3, the force applying effect can be improved. The bottom of the water-absorbing inner chamber 15 is connected with the filter body 16, and the filter body 16 can ensure that the groundwater entering the water storage inner chamber 17 does not have large particles of foreign matter such as foundation soil, and ensures that the pumping equipment 6 is not blocked and has stable working performance.

As shown in Fig. 3 in conjunction with Fig. 1, the active water-absorbing structure 2 is distributed with a water-permeable shell 21 near the control shell 9, and the water-permeable shell 21 is also used to filter the inhaled capillary water. The inner layer of the active water-absorbing structure 2 is distributed with a main water-absorbing body 18. The main water-absorbing body 18 has a strong active water-absorbing function, and the capillary water body within the corresponding control range has a strong adsorption capacity; the main water-absorbing body 18 can be selected to have a strong water-absorbing capacity performance and can be made of compressively deformable materials. The water-permeable shell 21 and the bottom of the main water-absorbing body 18 are distributed with drainage vertical pipes 20. When the main water-absorbing body 18 is compressed by the pressure plate 24 of the force-applying structure 3, the water inside the main water-absorbing body 18 can be discharged downward to the water-absorbing body. In the inner cavity 15, a filter plate 22 is connected to the bottom of the drainage standpipe 20. The filter plate 22 mainly functions to filter the water body and retain large foreign particles in the water body on the filter plate 22. When the active water-absorbing structure 2 is taken out upward, The foreign matter on the filter plate 22 can be cleaned together.

In this embodiment, as shown in Figure 3, a snap ring 23 protruding inward is distributed on the top of the active water-absorbing structure 2. When the pressing plate 24 is pulled upward, the pressing plate 24 exerts an upward force on the snap ring 23, and then The active water-absorbing structure 2 is lifted out of the water-absorbing inner chamber 15, so that the active water-absorbing structure 2 is processed.

As shown in FIG. 1 and FIG. 4 , the force applying structure 3 surrounds the outside of the central rod 5 through the middle bottom plate 25 , and is embedded in the active water-absorbing structure 2 through the pressing plate 24 . The middle bottom plate 25 corresponds to the regulating inner shell 10 , and is distributed with an upwardly protruding middle vertical plate 26 . The middle vertical plate 26 surrounds and forms a middle vertical cavity 27 . The distance between the upper surface of the pressing plate 24 and the lower surface of the middle base plate 25 and the inner depth of the middle vertical cavity 27 are the compression range of the pressing plate 24 to the main water absorbing body 18, and also the control range. The connecting area between the pressing plate 24 and the force applying structure 3 is connected by a connecting rod 38, and the pressing plate 24 is in a detachable state according to usage requirements.

As shown in FIG. 4 and FIG. 5 , the upper surface of the middle bottom plate 25 is located in the area between the adjacent middle vertical cavities 27 , and vertical fixing rods 33 are distributed thereon. 32 is embedded in the fixed rod 33 to realize connection with the force applying structure 3 . A movable washer 31 is distributed on the contact portion between the fixed ring 32 and the force-adjusting oil rod 29 , and the fixed ring 32 can freely rotate around the movable washer 31 . At the same time, the movable gasket 31 realizes the flexible transmission of the force of the force-adjusting oil rod 29 to the force-applying structure 3, increasing the engineering applicability of the active control system. The oil pressure in the oil chamber 28 can be adjusted through the control button 34 located on the top of the oil chamber 28, and then the telescopic movement of the force regulating structure 4 can be controlled.

As shown in Figure 5, movable nuts 35 are distributed at the ends of the drainage equipment 8, which can be connected with the drainage channels 7 inside the center rod 5 through the fixed screw holes 36 and the fixed nuts 37 located inside the force-adjusting structure 4 in turn, and the pumping Equipment 6 is used to discharge the underground water in the water storage cavity.

As shown in FIG. 2 , the lowest end of the control outer cavity 1 is distributed with a driving end 39 , which facilitates implanting the active control system into the expansive soil layer.

As shown in Figure 6, the present embodiment is constructed around the existing structures 40 in the expansive soil area, and the active control system 41 is embedded in the specific depth of the foundation soil through the atmospheric influence depth of the area, and the atmospheric influence depth caused by the embedding depth range At the same time, the main water absorbing body 18 of the active control system can be taken out of the ground to be dried and reused, and the external cavity 1, the active water absorbing structure 2, the force applying structure 3, and the pumping equipment 6 are used as the active control structure The main components can be often placed in the foundation soil, and the force-adjusting structure 4 and drainage equipment 8 can be used as implementing components, and cooperate with each main component to complete the absorption and discharge of capillary water; that is, a set of force-adjusting structure 4 and drainage equipment 8, It can meet the repeated use of multiple sets of main components in one area.

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

The following is a workflow for regulating the external chamber 1. In actual work, a set of force-regulating structure 4 and drainage equipment 8 can serve multiple regulating external chambers 1 in turn. For example, as shown in Figure 6, in existing buildings The periphery of 40 is provided with a circle of active control systems 41, and these active control systems 41 all have main components placed on the foundation, that is, control outer cavity 1, active water absorption structure 2, force application structure 3 and pumping equipment 6; and only one set of Adjusting force structure 4 and drainage equipment 8.

(1) According to the plane structure of the existing building 40 and the atmospheric influence depth value in the building site, design the plane distribution position of the active control system 41 and the implantation depth in the foundation soil.

(2) According to the designed position and depth, the control outer cavity 1 is implanted in the foundation soil around the existing building structure 40 through the force-applying structure 3 or external instruments.

(3) After the adjustment and control of the outer cavity 1 is completed, put the force applying structure 3 and the active water-absorbing structure 2 into the water-absorbing inner cavity 15 .

(4) Waterproof the top cavity of the control outer cavity 1 to prevent surface water from entering the control cavity 1.

(5) The outer water absorbing body 11, the inner water absorbing body 12, and the main water absorbing body 18 absorb the capillary water body in the foundation soil; 33 to connect, and rotate the force-adjusting oil rod 29 to be located at the bottom area of the movable gasket 31, so that the fixed ring 32 and the fixed rod 33 are tightly connected by threads.

(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, and at the same time, insert the fixed nut 37 into the port position of the drainage channel 7 at the top of the center rod 5.

(7) Adjust the oil pressure in the oil chamber 28 through the control button 34, so that the force-adjusting oil rod 29 is extended through the telescopic joint 30, and exerts downward pressure on the force-applying structure 3. Compressed, the capillary water body in the main water-absorbing body 18 flows through the filter plate 22 and the filter body 16 through the vertical drain pipe 20 and then enters the water storage inner cavity 17 .

(8) Use the control button 34 to control the pumping equipment 6 to enter the working state, and discharge the water in the water storage cavity 17 through the drainage channel 7 and the drainage equipment 8 inside the central rod 5 to the ground.

(9) Adjust the oil pressure in the oil chamber 28 through the control button 34, shorten the force-adjusting oil rod 29, and apply an upward pulling force to the force-applying structure 3, and the pressure plate 24 is separated from the main water-absorbing body 18 in the active water-absorbing structure 2 and synchronized Move up until it contacts the snap ring 23 , the pressing plate 24 exerts upward pulling force on the active water-absorbing structure 2 , and the active water-absorbing structure 2 moves out of the water-absorbing inner cavity 15 .

(10) Turn the pressing plate 24 to remove the pressing plate 24 and remove the force applying structure 3 .

(11) Take out the main water-absorbing body 18, and dry, dry or replace the main water-absorbing body 18 according to the usage.

After the main water-absorbing body 18 has been treated to meet the requirements for use, the main water-absorbing body 18 is put back into the active water-absorbing structure 2, and step (3) is repeated to start the next cycle of active water-absorbing control work.

In the specific implementation of this embodiment: since the control outer cavity 1 needs to be placed underground, it can be made of environmentally friendly materials with strong structural stability and corrosion resistance. The control outer shell 9 and the control inner shell 10 need to satisfy their respective functions while meeting the overall structural material requirements of the control outer cavity. The active water-absorbing structure 2 needs to be pressed into or moved out of the control outer cavity, so the water-permeable shell 21 located outside the active water-absorbing structure needs to have certain strength, rigidity and structural stability. The main water-absorbing body 18 is mainly an active water-absorbing component, and it needs to be repeatedly pressed by the pressing plate to discharge the water inside the main water-absorbing body. Made of resilient and reusable materials. The force applying structure 3 needs to be made of materials with strong structural stability, rigidity and the ability to withstand relatively large forces. The force-adjusting structure 4 and the drainage device 8 need to be moved repeatedly, so they can be made of lighter materials. At the same time, the force-adjusting structure 4 needs to have strong structural stability and rigidity, and can withstand large forces. The remaining components can be made of materials that are convenient for construction and operation, provided that the relevant functions are met.

Although the above embodiments have described the concept and embodiments of the present invention in detail with reference to the accompanying drawings, those skilled in the art can recognize that various modifications to the present invention can still be made without departing from the scope of the claims. Improvements and transformations, so I won't go into details one by one here.

Claims (10)

1. An active control system for the depth of atmospheric influence in expansive soil areas, characterized in that: the active control system includes a control outer cavity, an active water absorption structure, a force application structure, a force adjustment structure, pumping equipment and drainage equipment, wherein the The control outer cavity is composed of a control shell and a control inner shell, the active water absorption structure is installed between the control shell and the control inner shell, and the outer wall of the control shell is provided with a water absorber that can communicate with the outside world, The force application structure is installed above the control outer cavity and can apply pressure to the active water absorption structure. A cavity is provided in the middle of the control inner shell to form a water storage cavity. The water storage cavity is connected to the water storage cavity. The positions of the active absorption structures are connected to each other, and the water pumping equipment is arranged at the bottom of the water storage inner cavity and is connected to the drainage equipment above the force applying structure through a central rod. 2. A kind of active control system for atmospheric influence depth in expansive soil area according to claim 1, characterized in that: the control shell is set as a double-layer water absorbing body, including an outer layer water absorbing body and an inner layer water absorbing body body, wherein the inner water-absorbing body is separated from a water-absorbing channel, and one end of the water-absorbing channel communicates with the active water-absorbing structure. 3. A kind of active regulation and control system for atmospheric influence depth in expansive soil area according to claim 1, it is characterized in that: described active water absorption structure comprises main water absorption body, water-permeable casing, drainage standpipe and filter plate, wherein The water-permeable shell is arranged on the side of the main water-absorbing body close to the control shell, and the top of the water-permeable shell is provided with a buckle for clamping with the control shell, and the active water-absorbing structure is connected with the control shell through the buckle The regulating shell is detachably connected and fixed, the vertical drainage pipe is arranged at the bottom of the main water absorption body, and the filter plate is arranged at the bottom of the vertical drainage pipe. 4. The active control system for the depth of atmospheric influence in expansive soil areas according to claim 3, characterized in that: the control shell and the control inner shell form a water-absorbing inner cavity, and the active water-absorbing structure is installed in the In the water-absorbing inner chamber, a filter body is provided at the bottom of the water-absorbing inner chamber, and the active water-absorbing structure installed in the water-absorbing inner chamber passes through the filter body and the water storage chamber in the middle of the regulating inner shell. The cavities are connected. 5. The active control system for atmospheric influence depth in expansive soil areas according to claim 1, characterized in that: the force applying structure is applied to the active water absorption structure through the force of the force regulating structure Pressure, the force applying structure is provided with a board structure that is compatible with the control outer cavity, the board structure can be connected with the force regulating structure through a fixed rod, and a pressure plate is provided at the bottom of the board structure , the force regulating structure drives the displacement of the force applying structure and applies pressure to the active water absorbing structure through the pressing plate. 6. The active control system for atmospheric influence depth in expansive soil areas according to claim 5, characterized in that: several active water-absorbing structures are arranged in the force-regulating outer cavity, and the force-applying structure is set There are pressing plates corresponding to the active water-absorbing structures one by one. 7. The active control system for atmospheric influence depth in expansive soil areas according to claim 5, characterized in that: the force regulating structure includes an oil cavity and a force regulating oil rod, and the regulating oil rod has a telescopic joint , the power adjusting oil rod can expand and contract under the action of the oil chamber, and the bottom end of the adjusting oil rod is connected with the fixed rod. 8. An active control system for atmospheric influence depth in expansive soil areas according to claim 7, characterized in that: the middle part of the force regulating structure is provided with a fixing screw hole and a fixing nut, wherein the fixing screw hole It is used to connect with drainage equipment, and the fixed nut is used to connect with the central rod. 9. An application method related to the active regulation and control system for the atmospheric influence depth in expansive soil areas according to any one of claims 1-8, characterized in that: according to the plane structure of existing buildings and structures and the site where the buildings and structures are located Atmospheric influence depth value, implant a certain number and a certain depth of active control system in the surrounding range of the existing building structure, and eliminate the capillary water body within the range of atmospheric influence depth around the existing building structure through the active control system, Adjusts the deformation influence of expansive soils in the atmospheric influence depth range. 10. The application method of an active control system for atmospheric influence depth in expansive soil areas according to claim 9, characterized in that: when several active control systems are implanted, some of the active control systems only set , control the external cavity, active water absorption structure, force application structure and pumping equipment; use a set of force regulating structure and a set of drainage equipment to pump and drain each active control system in turn.

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