Foundation treatment device and treatment method

Abstract

The invention relates to the technical field of foundation treatment, in particular to a foundation treatment device and treatment method.The foundation treatment device is characterized in that a shell, an upper end cover and a lower end cover jointly form a closed space; the friction structure penetrates through the shell and is connected with the driving structure; the heat absorption structure is mounted on the inner wall of the shell and transmits heat into the shell; the friction structure comprises an inner friction ring pipe, an outer friction shell and a connecting shell; the inner friction ring pipe penetrates through the shell and the heat absorption structure and is internally provided with a cavity, and the surface is provided with an opening B communicating with the heat absorption structure. The outer friction shell is slidably assembled on the inner side of the inner friction ring pipe and fixedly connected with the connecting shell, and a clearance space is formed between the outer friction shell and the connecting shell. A connecting mechanism is installed on the inner side face of the outer friction shell and connected with a driving structure, and the outer friction shell is driven to do reciprocating drawing movement along the inner side face of the inner friction ring pipe under the driving effect. The problems that an existing foundation treatment device is poor in heating uniformity and high in energy consumption are solved.

Description

Technical Field

[0001] This invention relates to the field of foundation treatment technology, specifically to a foundation treatment device and treatment method. Background Technology

[0002] Soft soil foundations (referred to as "soft foundations") are mainly composed of silt, silty soil, fill, miscellaneous fill, or other highly compressible soil layers. They are characterized by high water content, high void ratio, high compressibility, low shear strength, and poor permeability, significantly impacting engineering construction. Before construction, soft foundations typically require treatment. One commonly used method in existing technologies is the heating method, which involves using a heating device inserted into the foundation to evaporate the soil moisture, thereby achieving a solidification effect. However, such heating devices generally suffer from uneven heating and low heating efficiency.

[0003] Taking Chinese patent CN110295588B as an example, this patent proposes a soft soil foundation treatment device and method. A driving device rotates a heat-conducting rod to increase the contact area between the heating pipe and the soil, thereby improving heating efficiency. Simultaneously, air vents are provided, and a vacuum device is used to expel moisture-containing gases from the soil, accelerating soil solidification. Although this design improves heat transfer conditions to some extent, it still has the following shortcomings: 1. High energy consumption: It relies on heat-conducting rods to heat the internal heat-conducting oil, resulting in a long heat transfer path, low efficiency, and large overall heat loss; 2. Heating uniformity is still not ideal: Even with the rotation of the heat-conducting sleeve, the heating range is still limited to the area around the device, making it difficult to achieve uniform heating of large volumes of soil; 3. Complex heat transfer structure: There is a gap between the heat transfer oil jacket and the external soil, which further reduces the heat transfer efficiency; 4. Insufficient electrical safety: Electric heating elements are exposed to a damp and harsh soil environment for a long time, which can easily lead to insulation aging, short circuits or breakdowns, posing safety hazards.

[0004] Therefore, in order to overcome the above-mentioned technical problems, reduce energy consumption, ensure uniform heating, and improve heating efficiency, a foundation treatment device and method are proposed to overcome the technical problems in the prior art. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a foundation treatment device and method, which solves the problems of poor heating uniformity and high energy consumption in existing foundation treatment devices.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a foundation treatment device, characterized in that it comprises: The shell consists of an outer shell, an upper end cover, and a lower end cover, which together form a sealed space. The drive structure is installed inside the housing; A friction structure extends through the outer casing and connects to the drive structure; The heat-absorbing structure is used to absorb the heat from the friction structure. The heat-absorbing structure is installed on the inner wall of the shell and transfers the heat to the inside of the shell. Vacuum tubing, including a connecting pipe installed on the inner side of the housing, with its end connected to a vacuum pumping device; The friction structure consists of an inner friction ring tube, an outer friction shell, and a connecting shell; The inner friction ring tube penetrates the outer shell and the heat-absorbing structure. It has a cavity inside and an opening B on its surface that communicates with the heat-absorbing structure. The outer friction shell is slidably assembled inside the inner friction ring tube and is fixedly connected to the connecting shell, forming a gap space between them. A connecting mechanism is installed on the inner side of the connecting shell 14. This connecting mechanism is connected to the driving structure and, under the driving action, drives the outer friction shell to reciprocate along the inner side of the inner friction ring tube.

[0007] Furthermore, through the above technical solution, a metal protective mesh and a waterproof and breathable diaphragm are respectively installed in the gap between the outer friction shell and the connecting shell from the outside to the inside; Metal protective mesh can effectively block external impurities from entering the device, while also providing structural support; waterproof and breathable diaphragm is used to prevent liquid water from seeping in, while allowing water vapor to pass through, ensuring stable operation of the device in a humid environment.

[0008] The outer shell surface has grooves arranged in a ring array, and openings A are equally spaced in the grooves, with protective components installed. The design of the grooves and openings A increases the contact area between the outer shell and the soft soil foundation, improving heat transfer efficiency and water vapor extraction effect.

[0009] Furthermore, the connecting mechanism includes a mounting column, a connecting shaft one, a bearing two, and a connecting rod; Mounting posts are symmetrically installed on the inner side of the connecting shell; Connecting shaft one connects between the inner sides of the two sets of mounting columns; Bearing 2 is mounted on the surface of connecting shaft 1; The connecting rod is fixedly installed on the outer surface of bearing two; The second bearing allows the connecting rod to rotate flexibly, effectively transmitting the power of the drive structure while reducing frictional loss during operation and improving the service life of the device.

[0010] As a preferred technical solution, the protective component consists of a metal protective mesh and a waterproof and breathable membrane forming a long protective structure from the outside to the inside, and covers the opening A on the groove surface. The protective component not only prevents soil particles from clogging the opening A, but also ensures that water vapor can smoothly enter the vacuum pipeline, while preventing external moisture from seeping in backwards, thus ensuring the continuity and effectiveness of the treatment process.

[0011] Furthermore, the heat-absorbing structure comprises a heat-receiving shell with a cavity, which is installed on the inner wall of the outer shell. The cavity is filled with heat-conducting oil and is connected to the internal cavity of the inner friction ring tube. The heat-conducting oil has good thermal conductivity and can quickly absorb and evenly transfer the heat generated by friction, avoiding local overheating and improving the overall heating efficiency.

[0012] As a preferred technical solution, the surface of the heated shell is provided with openings C in a ring array, and an inner connecting pipe is installed in the cavity at the opening C. The inner connecting pipe corresponds to the opening A. The design of the inner connecting pipe further optimizes the heat distribution and water vapor flow path, ensuring that the heat energy is evenly diffused to the soft soil foundation, while improving the water vapor collection efficiency during the vacuuming process. In addition, the inner connecting pipe can enhance the strength of the heated shell.

[0013] Furthermore, airbags are installed at the upper and lower ends of the heated shell. The airbags can buffer the expansion of the heat transfer oil volume caused by temperature changes, maintain the internal pressure balance of the system, prevent structural damage caused by thermal expansion and contraction, and enhance the stability and safety of the device.

[0014] As a preferred technical solution, the drive structure includes a motor mounting plate, a vacuum motor, a crankshaft, connecting parts, and a bearing housing; The motor mounting plate is installed on the inner side of the heating shell and connected to the inner wall of the outer shell by bolts. A vacuum motor is mounted on the upper surface of a motor mounting plate. Crankshaft, which is connected to the output end of the vacuum motor; The bearing housing is installed on the upper end face of the lower end cover, and its inner ring is connected to the crankshaft. The connecting piece, mounted on the surface of the crankshaft, is used to connect with the connecting mechanism. The vacuum motor provides stable power. The crankshaft and the connecting piece work together to convert the rotational motion into reciprocating linear motion, driving the friction structure to achieve an efficient and continuous frictional heat generation process.

[0015] Furthermore, the connecting component includes bearing one, connecting shaft two, bearing three, connecting sleeve, mounting plate, and connecting column; Connecting shaft two is installed on the crankshaft; Bearing 3 is fixedly installed on the surface of connecting shaft 2; The connecting sleeve is fixedly installed on three surfaces of the bearing; The mounting plate is fixedly installed on the surface of the connecting sleeve and symmetrically arranged along the transverse longitudinal section of the connecting sleeve; The connecting column is vertically connected between the two sets of connecting sleeves; Bearing 1 is fixedly installed on the surface of the connecting column, and its outer surface is connected to the connecting rod; The multi-bearing structure effectively reduces the frictional resistance of moving parts, improves the smoothness and efficiency of power transmission, and ensures that the device maintains reliable performance during long-term high-load operation.

[0016] As a preferred technical solution, a method for treating a foundation includes the following steps: S1. A geological survey should be conducted before drilling to ensure that the hole depth and diameter match the size of the device, so as to avoid hole wall collapse or unstable device installation. First, drill a deep hole in the soft soil foundation that is the same length as the shell, and then insert the entire device into the deep hole. This step ensures that the device fits tightly with the foundation, providing a stable working environment for subsequent heating and vacuuming. S2. Start the drive structure. The drive structure drives the friction structure to perform a rapid pulling motion inside the inner friction ring tube through the connecting parts. Due to friction, the inner friction ring tube generates heat, causing the temperature of the heat transfer oil inside the inner friction ring tube and the heated shell to rise evenly. The heat can be evenly transferred to the shell to heat the surrounding soft soil. The friction heating mechanism realizes the efficient conversion of energy. The use of heat transfer oil further optimizes the heat distribution, making the soft soil more evenly heated. S3. The temperature of the shell surface begins to rise due to the heating of the heat transfer oil, causing the moisture in the surrounding soft soil foundation to begin to evaporate. The uniform heating promotes the rapid vaporization of the moisture inside the soft soil, laying the foundation for subsequent vacuum dehydration. S4. Start the vacuum pumping device to extract water vapor along the opening A. The vacuum pumping device should be kept running continuously and stably to ensure that water vapor is discharged in time and to prevent the moisture in the foundation from recondensing. The vacuum pumping system effectively removes moisture from the foundation and significantly improves the density and bearing capacity of soft soil. S5. Continuously process for a predetermined time to complete the heating, solidification and densification of the foundation. By controlling the processing time, customized reinforcement of soft soil foundations with different soil types and moisture contents can be achieved. S6. After a certain period of use, perform appropriate maintenance on the device. Regular maintenance helps extend the service life of the device and ensures that it is in the best working condition for a long time.

[0017] Compared with the prior art, the present invention provides a foundation treatment device and method, which has the following beneficial effects: 1. The local ground treatment device uses a drive unit to move the friction structure, causing friction between the outer friction shell and the inner friction ring tube. This friction generates heat, and the heat-conducting oil connecting the inner friction ring tube and the heated shell absorbs the heat from the friction and evenly distributes it to the outer shell, making the outer shell itself a heat source. This increases the contact area with the ground, improves the evaporation of ground moisture, and increases treatment efficiency. Furthermore, the friction-generated heat reduces energy consumption and the number of heating devices required. This prevents the electric heating elements from being exposed to a damp and harsh soil environment for extended periods, which could lead to insulation aging, short circuits, or breakdowns and pose safety hazards.

[0018] 2. To prevent particles and moisture from the foundation from directly entering the connecting shell, a metal protective mesh (to prevent particles from entering) and a waterproof and breathable diaphragm (to prevent moisture from entering but allow water vapor to enter) are installed between the outer friction shell and the connecting shell from the outside to the inside, thereby preventing water from affecting the operation of the internal structure of the shell.

[0019] 3. This processing device, through the action of a vacuum motor, crankshaft, and connecting parts, causes the adjacent outer friction shells to run alternately. Furthermore, the crankshaft configuration effectively drives the friction structure to reciprocate, thereby improving friction efficiency and enabling rapid heat generation.

[0020] 4. This processing device has grooves on the surface of the outer shell and openings A on the surface of the grooves. The surface of the heated shell also has openings C. An internal connecting pipe is installed to correspond to openings A. Multiple openings A can effectively draw out water vapor through the vacuum device. The protective components prevent the entry of external particles and water. The setting of multiple openings A improves the absorption effect of water vapor. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the present invention; Figure 2 For the present invention Figure 1 AA sectional view; Figure 3 For the present invention Figure 1 A three-dimensional schematic diagram; Figure 4 A schematic diagram of the groove formed on the surface of the outer casing 1 of the present invention and the opening A inside the groove; Figure 5 This is a schematic diagram of the driving structure of the present invention; Figure 6 For the present invention Figure 5 A three-dimensional schematic diagram; Figure 7 This is a schematic diagram of the heated shell and inner connecting pipe of the present invention; Figure 8 For the present invention Figure 2 A magnified view of part A; Figure 9 For the present invention Figure 2 A magnified view of part B; Figure 10 For the present invention Figure 6 A magnified view of a portion at point C; Figure 11 For the present invention Figure 6 A magnified view of part D.

[0022] In the diagram: 1. Outer shell; 2. Upper end cover; 3. Lifting ring; 4. Inner friction ring tube; 5. Motor mounting plate; 6. Connecting pipe; 7. Vacuum motor; 8. Crankshaft; 9. Heated shell; 10. Bearing 1; 11. Outer friction shell; 12. Metal protective mesh; 13. Waterproof and breathable diaphragm; 14. Connecting shell; 15. Mounting column; 16. Connecting shaft 1; 17. Bearing 2; 18. Connecting rod; 19. Airbag; 20. Lower end cover; 21. Bearing seat; 22. Inner connecting pipe; 23. Connecting shaft 2; 24. Bearing 3; 25. Connecting sleeve; 26. Mounting plate; 27. Connecting column; 28. Dustproof scraper ring; 29. ​​Sealing ring. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0024] Please see Figure 1-11 The present invention provides the following technical solution: a foundation treatment device, characterized in that it comprises: The shell consists of an outer shell 1, an upper end cover 2, and a lower end cover 20, which together form a sealed space. The drive structure is installed inside the housing 1; A friction structure penetrates the outer casing 1 and is connected to the drive structure; The heat-absorbing structure is used to absorb the heat of the friction structure. The heat-absorbing structure is installed on the inner wall of the outer shell 1 and transfers the heat to the inner wall of the outer shell 1. Furthermore, the heat-absorbing structure is in close contact with the inner wall of the outer shell 1, so there is no gap between the two, resulting in better heat transfer. Vacuum tubing, including a connecting pipe 6 installed on the inner side of the housing 1, with its end connected to a vacuum pumping device; The friction structure consists of an inner friction ring tube 4, an outer friction shell 11, and a connecting shell 14; When the friction structure is driven by the drive structure to reciprocate rapidly along the inner friction ring tube 4, friction is generated with the inner friction ring tube 4, thus generating heat. Since the inner friction ring tube 4 penetrates the outer shell 1 and the heat-absorbing structure, it has an internal cavity and an opening B on its surface that communicates with the heat-absorbing structure. Heat-conducting oil is filled into the cavity, allowing the heat generated by friction to be absorbed by the oil. This allows the oil to heat up rapidly in a short time, thereby heating the inner wall of the outer shell 1 and maximizing its contact area with the foundation. This improves the efficiency of moisture evaporation. Furthermore, since frictional heat generation does not involve any electrical components, energy consumption is reduced, and the electric heating element is protected from long-term exposure to damp and harsh soil environments, which could lead to insulation aging, short circuits, or breakdowns, posing safety hazards. The problem is that the outer friction shell 11 is slidably assembled inside the inner friction ring tube 4, and the outer friction shell 11 is fixedly connected to the connecting shell 14, forming a gap space between them. The purpose is to install in the gap space to prevent sand and mud from entering the foundation. In order to facilitate the connection with the drive structure, a connecting mechanism is installed on the inner side of the connecting shell 14. This connecting mechanism is connected to the drive structure. Under the drive action, the outer friction shell 11 is driven to reciprocate and pull along the inner side of the inner friction ring tube 4. Furthermore, openings are provided on the surfaces of both the outer friction shell 11 and the connecting shell 14 to facilitate the entry of water vapor. Multiple sets are opened and distributed in a ring array. Thus, combined with the opening A, water vapor can be easily entered and quickly extracted by the vacuum device in a short time to avoid staying inside the outer shell 1.

[0025] Secondly, the material of the inner friction ring tube 4 is high carbon steel, and the material of the inner wall connecting shell 14 of the inner friction ring tube 4 is polyimide. Polyimide has good high temperature resistance, high friction coefficient, wear resistance and low wear on the wear parts. The main reason for choosing this solution is that the frictional heat is generated between the polymer, namely polyimide and the inner friction ring tube 4. It can instantly conduct heat to the inner friction ring tube 4 and diffuse it out, avoiding the "seizing" phenomenon that may occur between metals. It runs smoothly and has low noise.

[0026] During the movement of the outer friction shell 11, it will inevitably come into contact with the soil in the foundation and will cover the surface of the outer friction shell 11. Since the main component of the soil is SiO2, its hardness is much higher than that of metal. In order to avoid failure due to frictional heat, see [reference needed]. Figure 9As can be seen, a dust scraper 28 for scraping mud and sand is fixedly installed on the outer end face of the inner friction ring tube 4, and a set of sealing rings 29 are also installed on the inner side of the dust scraper 28. The sealing rings 29 will contact the surface of the outer friction shell 11, thus preventing the entry of moisture. In order to adapt to the environment of the device, the dust scraper 28 is made of PTFE material, preferably a composite material that can be filled with glass fiber or molybdenum dioxide. This material has good self-lubricating properties, will not jam moving parts, can effectively scrape hard particles, and is wear-resistant. The sealing rings 29 are made of hydrogenated nitrile rubber. The main characteristics of this material are high temperature resistance and high wear resistance, which can adapt to the friction of the outer friction shell 11 and can adapt to high temperature environments.

[0027] Based on the above, in order to ensure that the outer friction shell 11 contacts the foundation when it is pulled and moved, and to prevent water and mud from directly entering the connecting shell 14, please refer to the following for details. Figure 9 As can be seen, the gap between the outer friction shell 11 and the connecting shell 14 is respectively equipped with a metal protective mesh 12 that can block larger sand particles and a waterproof and breathable membrane 13 that blocks water and allows water vapor to enter. Because openings are made on the surface of the outer friction shell 11, it is easy for moisture to be sucked out by the vacuum device. In order to further improve the rapid extraction of water vapor, grooves are made in a ring array on the surface of the outer shell 1, and openings A are made at equal intervals in the grooves. Protective components are installed to increase the number of openings. This increases the position of water vapor entry and the channel for entering the outer shell 1, thereby increasing the rapid extraction by the vacuum device.

[0028] Since the outer friction shell 11 generates high temperatures in the surrounding area due to friction, the preferred material for the metal protective mesh 12 is stainless steel wire mesh, with 316 / 316L stainless steel being the first choice. Because it contains molybdenum, its resistance to pitting and crevice corrosion is far superior to that of 304 stainless steel. It also has the characteristics of high temperature resistance and wear resistance, making it very suitable for complex underground environments. The material for the waterproof and breathable diaphragm 13 is ePTFE (expanded polytetrafluoroethylene), which has good high temperature resistance and does not directly contact the frictional heat, thus it can adapt well to high temperature environments. Secondly, the surface of the metal protective net 12 has protrusions that can be located within the openings on the surface of the outer friction shell 11 and extend to the surface of the outer friction shell 11. The curvature of the protrusions is consistent with the corresponding arc surface. This prevents soil from accumulating in the openings of the outer friction shell 11 and causing blockage, thus affecting the entry of water vapor. There is also a small space between the protrusions and the waterproof and breathable membrane 13, which facilitates the entry of water vapor. Furthermore, the metal protective net 12 is made of wear-resistant and high-temperature resistant material, so it will not affect the service life of the metal protective net 12. When the outer friction shell 11 is reciprocated by the driving device, it will be inserted into the foundation, forming a space around it. Due to the nature of the soft soil foundation, this space will not collapse immediately, allowing sufficient moisture in the foundation to seep into the space. Each time the outer friction shell 11 comes into contact with the foundation surface in this space, the moisture will evaporate, which will help generate water vapor and allow it to be sucked out by the vacuum device.

[0029] Secondly, according to the attached diagram Figure 3 , Figure 6 It is evident that the adjacent friction structures are arranged in an alternating manner. In particular, the crankshaft 8 plays a crucial role. When the crankshaft 8 rotates, it drives the friction structures to move, which inevitably causes the outer shell 1 to vibrate. Based on the properties of the soft soil foundation, when the outer shell 1 shakes or vibrates, it will detach from the surface that was originally in contact with the foundation. This facilitates the generation of water vapor and also allows water vapor to escape. Furthermore, it helps the remaining moisture in the foundation to seep into the gap created during the shaking and then evaporate upon contact with the surface of the outer shell 1 again, forming a closed loop.

[0030] As described above, the friction structure is mainly connected to the driving structure through a connecting mechanism. For details regarding the connecting mechanism, please refer to [link to relevant documentation]. Figure 9 As can be seen, the connecting mechanism includes a mounting post 15, a connecting shaft 16, a bearing 17, and a connecting rod 18; Mounting posts 15 are symmetrically installed on the inner side of the connecting shell 14; Connecting shaft 16 connects between the inner sides of two sets of mounting posts 15; Bearing 2 17 is mounted on the surface of connecting shaft 1 16; The connecting rod 18 is fixedly installed on the outer surface of the bearing 17, and the connecting rod 18 is connected to the drive structure, so that the connecting shell 14 can be driven to reciprocate along the inner side of the inner friction ring tube 4 through the above-mentioned components.

[0031] This protective component is identical to the metal protective mesh 12 and the waterproof and breathable diaphragm 13 installed between the connecting shell 14 and the outer friction shell 11, and their purpose and function are also the same. For details, please refer to [link / reference needed]. Figure 1and Figure 3 As can be seen, the protective component consists of a metal protective mesh 12 and a waterproof and breathable diaphragm 13 forming a long protective structure from the outside to the inside, and covers the opening A on the groove surface.

[0032] In order to absorb the heat generated by friction in the internal friction ring tube 4, please refer to the following for details. Figure 6 , Figure 9 , Figure 10 As can be seen, the heat-absorbing structure comprises a heat-receiving shell 9 with a cavity. The heat-receiving shell 9 is installed on the inner wall of the outer shell 1. The cavity is filled with heat-conducting oil and is connected to the internal cavity of the inner friction ring tube 4. The inner friction ring tube 4 has a cavity inside, so the heat-conducting oil in the cavity can quickly absorb the heat generated by friction and begin to transfer it into the heat-receiving shell 9. This allows the heat-conducting oil in the heat-receiving shell 9 to quickly absorb heat and transfer it to the outer shell 1. Thus, the entire outer shell 1 becomes a heat source, eliminating the need for heating through electric heating elements such as electric heating rods. It achieves heat generation entirely through mechanical energy, thereby significantly reducing energy consumption and preventing risks caused by aging of electrical components.

[0033] Although the heated shell 9 can evenly transfer heat to the outer shell 1, and secondly, in order not to affect the air permeability of the opening A located in the groove on the surface of the outer shell 1, please refer to [the relevant documentation]. Figure 7 As can be seen, the surface of the heated shell 9 has openings C arranged in a ring array, and an inner connecting pipe 22 is installed in the cavity at the opening C. The inner connecting pipe 22 corresponds to the opening A. This facilitates the entry of water vapor and prevents the water vapor from being unable to enter due to the heated shell 9 covering the opening A. At the same time, it can accelerate the discharge of water vapor.

[0034] Any structure and material will expand when heated. When heat-conducting oil is heated, it will inevitably expand. To prevent the heat-conducting shell 9 from deforming or cracking due to expansion, please refer to [the relevant documentation]. Figure 8 As can be seen, airbags 19 are installed at the upper and lower ends of the heating shell 9, which can adapt to the changes in the expansion of the heat transfer oil caused by temperature, and prevent the heating shell 9 from deforming or cracking.

[0035] For details on the drive structure, please refer to [link / reference]. Figure 2 , Figure 5 , Figure 6 , Figure 10 , Figure 11 As can be seen, the drive structure includes a motor mounting plate 5, a vacuum motor 7, a crankshaft 8, a connecting piece, and a bearing seat 21; The motor mounting plate 5 is installed on the inner side of the heated shell 9 and connected to the inner wall of the outer shell 1 by bolts. Vacuum motor 7 is mounted on the upper surface of motor mounting plate 5; Crankshaft 8 is connected to the output end of vacuum motor 7; The bearing housing 21 is installed on the upper end face of the lower end cover 20, and its inner ring is connected to the crankshaft 8; A connector, mounted on the surface of crankshaft 8, is used to connect with a connecting mechanism.

[0036] Secondly, the connecting components include bearing 10, connecting shaft 23, bearing 324, connecting sleeve 25, mounting plate 26, and connecting column 27; Connecting shaft 23 is mounted on crankshaft 8; Bearing 3 24 is fixedly installed on the surface of connecting shaft 2 23; Connecting sleeve 25 is fixedly installed on the surface of bearing 24; Mounting plate 26 is fixedly mounted on the surface of connecting sleeve 25 and symmetrically arranged along the transverse longitudinal section of connecting sleeve 25; The connecting post 27 is vertically connected between the two sets of connecting sleeves 25; Bearing 10 is fixedly installed on the surface of connecting column 27, and its outer surface is connected to connecting rod 18.

[0037] When the drive structure is working, the vacuum motor 7 drives the crankshaft 8 to rotate, and then transmits the motion to the connecting mechanism through the connecting parts (especially the cooperation between the connecting rod 18 and the connecting column 27), which ultimately drives the outer friction shell 11 to reciprocate. The function of each set of bearings is to facilitate the self-adjustment between the connecting rods 18.

[0038] Secondly, the output end of the vacuum motor 7 and the crankshaft 8 are connected by a plug-in connection. That is, the output end of the vacuum motor 7 is a square column, and the end face of the crankshaft 8 has a groove of the same size as the square column. The output end can be directly inserted into the groove. In order to facilitate the rotation of the crankshaft 8, the lower end is connected to the inner ring of the bearing seat 21 installed on the surface of the lower end cover 20.

[0039] According to the above, a method for treating a foundation includes the following steps: S1. First, drill a deep hole in the soft soil foundation that is the same length as the shell, and then insert the entire device into the deep hole; S2. Start the drive structure. The drive structure drives the friction structure to perform a rapid pulling motion in the inner friction ring tube 4 through the connecting parts. This causes the inner friction ring tube 4 to generate heat due to friction. As a result, the temperature of the inner friction ring tube 4 and the heat transfer oil inside the heated shell 9 rises evenly due to the heat, and the heat can be evenly transferred to the shell 1 to heat the surrounding soft soil. S3. The temperature of the shell surface begins to rise due to the heating of the heat transfer oil, causing the moisture in the surrounding soft soil foundation to begin to evaporate; S4. Start the vacuum device to extract the water vapor along the opening A and the opening on the surface of the outer friction shell 11; S5. Continue processing for the predetermined time to complete the heating, solidification, and densification of the foundation; S6. After a certain period of use, perform appropriate maintenance and upkeep on the device.

[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A foundation treatment device, characterized in that, include: The shell consists of an outer shell (1), an upper end cover (2), and a lower end cover (20), which together form a sealed space. The drive structure is installed inside the housing (1); A friction structure extends through the outer shell (1) and is connected to the drive structure; A heat-absorbing structure is installed on the inner wall of the outer shell (1) and transfers heat to the interior of the outer shell (1); The vacuum line includes a connecting pipe (6) installed on the inner side of the housing (1), the end of which is connected to the vacuum pumping device; The friction structure consists of an inner friction ring tube (4), an outer friction shell (11), and a connecting shell (14); The inner friction ring tube (4) penetrates the outer shell (1) and the heat absorption structure. It has a cavity inside and an opening B on its surface that communicates with the heat absorption structure. The outer friction shell (11) is slidably assembled inside the inner friction ring tube (4). The outer friction shell (11) is fixedly connected to the connecting shell (14), and a gap space is formed between them. A connecting mechanism is installed on the inner side of the connecting shell (14). The connecting mechanism is connected to the driving structure. Under the driving action, the outer friction shell (11) is driven to reciprocate along the inner side of the inner friction ring tube (4).

2. The foundation treatment device according to claim 1, characterized in that: The gap between the outer friction shell (11) and the connecting shell (14) is respectively equipped with a metal protective mesh (12) and a waterproof and breathable diaphragm (13) from the outside to the inside. The outer shell (1) has grooves arranged in a ring array on its surface. Openings A are equidistantly arranged in the grooves, and protective components are installed thereon.

3. The foundation treatment device according to claim 1, characterized in that: The connecting mechanism includes a mounting column (15), a connecting shaft one (16), a bearing two (17), and a connecting rod (18). Mounting posts (15) are symmetrically installed on the inner side of the connecting shell (14); Connecting shaft 1 (16) is connected between the inner sides of the two sets of mounting posts (15); Bearing 2 (17) is mounted on the surface of connecting shaft 1 (16); The connecting rod (18) is fixedly installed on the outer surface of bearing two (17).

4. The foundation treatment device according to claim 1, characterized in that: The protective component consists of a metal protective mesh (12) and a waterproof and breathable membrane (13) forming a long protective structure from the outside to the inside, and covers the opening A on the groove surface.

5. The foundation treatment device according to claim 1, characterized in that: The heat absorption structure comprises a heat-receiving shell (9) with a cavity. The heat-receiving shell (9) is installed on the inner wall of the outer shell (1). The cavity is filled with heat-conducting oil and is connected to the internal cavity of the inner friction ring tube (4).

6. A foundation treatment device according to claim 5, characterized in that: The surface of the heated shell (9) has openings C arranged in a ring array, and an inner connecting pipe (22) is installed in the cavity at the opening C, with the inner connecting pipe (22) corresponding to the opening A.

7. A foundation treatment device according to claim 5, characterized in that: Airbags (19) are installed at the upper and lower ends of the heated shell (9).

8. The foundation treatment device according to claim 1, characterized in that: The drive structure includes a motor mounting plate (5), a vacuum motor (7), a crankshaft (8), a connector, and a bearing seat (21). The motor mounting plate (5) is installed on the inner side of the heated shell (9) and connected to the heated shell (9) by bolts on the inner wall of the outer shell (1); A vacuum motor (7) is mounted on the upper surface of a motor mounting plate (5); Crankshaft (8) is connected to the output end of vacuum motor (7); The bearing housing (21) is installed on the upper end face of the lower end cover (20), and its inner ring is connected to the crankshaft (8); A connector is mounted on the surface of the crankshaft (8) for connection with the connecting mechanism.

9. A foundation treatment device according to claim 8, characterized in that: The connecting components include bearing one (10), connecting shaft two (23), bearing three (24), connecting sleeve (25), mounting plate (26), and connecting column (27); Connecting shaft two (23) is installed on crankshaft (8); Bearing 3 (24) is fixedly installed on the surface of connecting shaft 2 (23); Connecting sleeve (25) is fixedly installed on the surface of bearing three (24); Mounting plate (26) is fixedly mounted on the surface of connecting sleeve (25) and symmetrically arranged along the transverse longitudinal section of connecting sleeve (25); The connecting column (27) is vertically connected between the two sets of connecting sleeves (25); Bearing 1 (10) is fixedly installed on the surface of the connecting column (27), and its outer surface is connected to the connecting rod (18).

10. A foundation treatment method based on the foundation treatment device according to any one of claims 1-9, characterized in that, Includes the following steps: S1. First, drill a deep hole in the soft soil foundation that is the same length as the shell, and then insert the entire device into the deep hole; S2. Start the drive structure. The drive structure drives the friction structure to perform a rapid pulling motion in the inner friction ring tube (4) through the connecting parts. This causes the inner friction ring tube (4) to generate heat due to friction. This causes the heat transfer oil inside the inner friction ring tube (4) and the heated shell (9) to rise in temperature evenly due to the heat. The heat can be evenly transferred to the shell to heat the surrounding soft soil. S3. The temperature of the shell surface begins to rise due to the heating of the heat transfer oil, causing the moisture in the surrounding soft soil foundation to begin to evaporate; S4. Start the vacuum device to extract the water vapor along the opening A; S5. Continue processing for the predetermined time to complete the heating, solidification, and densification of the foundation; S6. After a certain period of use, perform appropriate maintenance and upkeep on the device.

Images