Pile foundation and pile foundation system

Abstract

The application relates to a pile foundation and a pile foundation system. The pile foundation comprises a hollow barrel body for being inserted into soil, a first opening is arranged at the bottom of the barrel body, a top cover is arranged at the top of the barrel body, an electric heating device is arranged on the inner side wall of the barrel body and is used for evaporating water in the soil on both sides of the barrel body, a glue injection hole is arranged on the top cover and is used for injecting glue into the inside of the barrel body to improve the hardness of the soil in the barrel body, and a curing device is arranged on the inner side wall of the barrel body and is used for curing the glue. The application can reduce the water content around the pile foundation by heating through the barrel body and the electric heating device, can enhance the bearing capacity, the anti-pulling capacity and the horizontal force of the pile foundation, and can improve the stability of the pile foundation. The soil hardness in the barrel body can be improved after the glue is injected and cured through the glue injection hole and the curing device, the bearing capacity, the anti-pulling capacity and the horizontal force of the pile foundation can be further enhanced, and the stability of the pile foundation can be further improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic bracket installation technology, specifically to a pile foundation and pile foundation system. Background Technology

[0002] With the rapid development of photovoltaic (PV) mounting systems, land utilization has gradually become a key challenge for the future development of PV. Different site conditions present numerous limitations, such as silty soil, liquefiable soil, collapsible loess, or seasonally frozen soil. These conditions increasingly demand higher requirements on the pile foundations of PV mounting systems. Especially under strong wind loads, the pile foundations of PV mounting systems face enormous challenges.

[0003] Therefore, in scenarios with high soil moisture content, such as silty soil (including liquefiable soil, collapsible loess, seasonally frozen soil, and marshland), a pile foundation suitable for silty soil is needed to meet the actual needs of complex scenarios. Utility Model Content

[0004] To address the aforementioned technical issues, this application provides a pile foundation that can meet the application requirements of photovoltaic support systems in silty soil environments.

[0005] The technical solution adopted in this application to solve the above-mentioned technical problems is a pile foundation, comprising: a hollow cylinder for insertion into the soil, a first opening at the bottom of the cylinder, and a top cover at the top of the cylinder; an electric heating device disposed on the inner wall of the cylinder for evaporating moisture in the soil on both the inner and outer sides of the cylinder; an injection hole opened in the top cover for injecting adhesive into the interior of the cylinder to increase the hardness of the soil inside the cylinder; and a curing device disposed on the inner wall of the cylinder for curing the adhesive.

[0006] In one embodiment of this application, the diameter of the first opening is larger than the diameter of the top of the cylinder.

[0007] In one embodiment of this application, the pile foundation further includes an isolation plate, which is movably disposed on the side wall of the cylinder to seal the first opening, thereby preventing moisture from the outside of the cylinder from entering the interior of the cylinder.

[0008] In one embodiment of this application, the pile foundation further includes: a push rod disposed on the side wall of the cylinder and connected to the isolation plate; and a guide rail disposed on the side wall and bottom of the cylinder, wherein the guide rail is configured such that when the push rod is driven by an external force to push the isolation plate to move, the isolation plate moves along the guide rail to the first opening and blocks the first opening.

[0009] In one embodiment of this application, the electric heating device includes a heat-conducting sheet and / or a resistance wire.

[0010] In one embodiment of this application, the cylinder includes a plurality of small holes that penetrate the side wall of the cylinder and are close to the top cover, for discharging gas and moisture from the inside of the cylinder to the outside of the cylinder.

[0011] In one embodiment of this application, the curing device includes an ultraviolet lamp, and the colloid includes an ultraviolet-curable adhesive.

[0012] In one embodiment of this application, the pile foundation further includes a controller disposed on the top cover, the controller being connected to the electric heating device to turn the electric heating device on or off; and / or, the controller being connected to the curing device to turn the curing device on or off; and / or, the controller being connected to the push rod to control the movement of the push rod.

[0013] In one embodiment of this application, the controller further includes a display for displaying the temperature of the soil inside the cylinder and / or the moisture content of the soil inside the cylinder.

[0014] This application also provides a pile foundation system, including: the pile foundation described above; and a glue applicator to allow the glue to enter the soil inside the cylinder.

[0015] This application improves the stability of the pile foundation by incorporating a cylindrical casing and an electric heating device to reduce the moisture content around the pile foundation through heating. By adding injection holes and a curing device, the soil hardness inside the casing is increased after the injection and curing process, further enhancing the pile foundation's bearing capacity, pull-out resistance, and horizontal force. Attached Figure Description

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0017] Figure 1 This is a schematic diagram of the structure of a pile foundation according to an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the intermediate state of the cylinder during the insertion of an embodiment of the present application into the soil;

[0019] Figure 3 This is a cross-sectional schematic diagram of a pile foundation according to another embodiment of this application;

[0020] Figure 4a This is a front view schematic diagram of a pile foundation including a partition plate according to an embodiment of this application;

[0021] Figure 4b yes Figure 4a A cross-sectional schematic diagram of the pile foundation in the illustrated embodiment;

[0022] Figure 4c yes Figure 4a A front view schematic diagram of the isolation plate sealing the first opening of the pile foundation in the embodiment shown;

[0023] Figure 4d yes Figure 4c A cross-sectional schematic diagram of the pile foundation in the illustrated embodiment;

[0024] Figure 5 This is a cross-sectional schematic diagram of the pile foundation after pile completion in this application;

[0025] Figure 6 This is a schematic diagram of the connection between the pile foundation and the photovoltaic support according to an embodiment of this application;

[0026] Figure 7a This is a schematic diagram of the pile foundation distribution according to an embodiment of this application;

[0027] Figure 7b yes Figure 7a Schematic diagram of the cross section along the DD direction;

[0028] Figure 8 This is a pile foundation system according to an embodiment of this application;

[0029] Figure 9 This is a schematic diagram of a pile foundation forming method according to an embodiment of this application. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein, and therefore the present invention is not limited to the specific embodiments disclosed below.

[0032] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not specifically singular and may include plural forms. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0033] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0034] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In addition, although the terminology used in this application is selected from commonly known and used terms, some terms mentioned in this application's specification may have been chosen by the applicant according to his or her judgment, and their detailed meanings are explained in the relevant sections of this description. Moreover, this application should be understood not only through the actual terms used, but also through the meaning implied by each term.

[0035] The embodiments of the present invention will now be described based on the accompanying drawings. However, the embodiments shown below are examples of pile foundations and pile foundation systems used to concretize the technical concept of the present invention, and the pile foundations and pile foundation systems of the present invention are not specifically defined as follows. Furthermore, in order to facilitate understanding of the scope of the claims, the components shown in the "Claims" and "Summary of the Utility Model" columns are assigned numbers corresponding to the components shown in the embodiments. However, this is by no means to specify the components shown in the claims as the components of the embodiments. In particular, the dimensions, materials, shapes, and relative arrangements of the constituent components described in the embodiments, unless specifically stated, are not intended to limit the scope of the present invention to these aspects, but are merely illustrative examples.

[0036] However, the dimensions or positional relationships of the components shown in the accompanying drawings are sometimes exaggerated for clarity. Therefore, in the following description, detailed descriptions of the same names and symbols representing the same or homogeneous components are appropriately omitted. Furthermore, the elements constituting this utility model can be multiple elements composed of the same components, thus allowing one component to function as multiple elements; conversely, multiple components can share the function of one component. Additionally, the content described in some embodiments and implementations can be applied to other embodiments and implementations. Furthermore, in this specification, "upper" is not limited to the case of being formed in contact with an upper surface, but also includes the case of being formed separately on top, and also includes the meaning of an interlayer between layers.

[0037] Currently, common methods for forming pile foundations include: isolated foundations, cast-in-place piles, and precast piles. In typical project sites with favorable conditions, columns inserted into the soil layer are generally used as pile foundations, i.e., isolated foundations. Column-based foundations do not require large pile foundation equipment, simplifying construction, saving time, and offering relatively high accuracy. However, this method is unsuitable for defective soil types such as silt or liquefiable soil. The main reason is that silt has a low lateral elasticity coefficient, and its lateral stiffness cannot meet requirements. Furthermore, among methods other than isolated foundations, cast-in-place piles and precast piles require heavy piling equipment. However, for defective soil types like silt or liquefiable soil, heavy piling equipment cannot be directly accessed, therefore, cast-in-place piles and precast piles are also unsuitable. If defective soil exists on the project site, in most cases, the site is abandoned, resulting in wasted space.

[0038] To address the aforementioned issues, this application proposes a pile foundation and a pile foundation system that enhances the bearing capacity of the pile foundation and makes it suitable for use in soils with high water content. The pile foundation and pile foundation system proposed in this application can be used not only as pile foundations for photovoltaic supports but also as pile foundations for other relatively lightweight products.

[0039] Figure 1 A schematic diagram of a pile foundation according to an embodiment of this application is shown. Figure 1 As shown, the present application provides a pile foundation 100, comprising: a hollow cylinder 110 for inserting into the soil, a first opening 111 at the bottom of the cylinder 110, and a top cover 112 at the top of the cylinder 110; an electric heating device (not shown) disposed on the inner wall 113 of the cylinder 110 for evaporating moisture in the soil on both sides of the cylinder 110; an injection hole 114 opened in the top cover 112 for injecting adhesive into the interior of the cylinder 110 to increase the hardness of the soil inside the cylinder 110; and a curing device (not shown) disposed on the inner wall 113 of the cylinder 110 for curing the adhesive.

[0040] This application, by incorporating a cylinder 110 and an electric heating device, uses the electric heating device to evaporate moisture in the soil on both the inner and outer sides of the cylinder 110, reducing the moisture content around the pile foundation 100 and enhancing the bearing capacity, pull-out resistance, and horizontal force of the pile foundation 100, thereby improving the stability of the pile foundation 100. By incorporating an injection hole 114 and a curing device, the soil inside the cylinder 110 can be injected with adhesive and cured, thereby increasing the soil hardness inside the cylinder 110, further enhancing the bearing capacity, pull-out resistance, and horizontal force of the pile foundation 100, and further improving the stability of the pile foundation 100.

[0041] like Figure 1 As shown, in some embodiments, the first opening 111 of the cylinder 110 and the top cover 112 of the cylinder 110 are circular in shape, and the diameter of the first opening 111 of the cylinder 110 is larger than the diameter of the top cover 112 of the cylinder 110. By setting the cylinder 110 so that the diameter of the first opening 111 is larger than the diameter of the top cover 112 of the cylinder 110, i.e., a structure that is larger at the bottom and smaller at the top, it is beneficial for the cylinder 110 to be smoothly inserted into the soil. When inserted into the soil, the soil in the cylinder 110 is pressed against each other and generates a compressive force toward the top cover 112, thereby enabling the cylinder 110 to be inserted into the soil more smoothly.

[0042] In some embodiments, the diameter of the top cover 112 of the cylinder 110 can be set to 0.3-0.4m to meet the mechanical performance requirements of prestressed high-strength concrete pipe piles. In some embodiments, the diameter of the first opening 111 can be set to 0.6m, and the height of the cylinder 110 can be set to 1m. In some embodiments, the height of the cylinder 110, the diameter of the first opening 111, and the diameter of the top cover 112 of the cylinder can be set according to actual engineering requirements.

[0043] like Figure 1 As shown, in some embodiments, the cylinder 110 includes a plurality of small holes 115, which penetrate the side wall of the cylinder 110 and are located near the top cover 112, for discharging gas and moisture from the inside of the cylinder 110 to the outside of the cylinder 110. It should be understood that the side wall of the cylinder 110 has a certain thickness, and the small holes 115 penetrate this side wall, thereby discharging gas and moisture from the inside of the cylinder 110 to the outside of the cylinder 110. By setting the diameter of the first opening 111 to be larger than the diameter of the top cover 112 of the cylinder, and by providing a plurality of small holes 115 on the side wall of the cylinder 110 near the top cover 112, it is beneficial to discharge gas and moisture from the soil.

[0044] Figure 2 This diagram illustrates an intermediate state of the cylinder during the insertion of an embodiment of the present application into the soil. Figure 2 As shown, because the cylinder 110 has a structure that is smaller at the top and larger at the bottom, during the downward pressing process, the soil particles below the ground level 210 will squeeze against each other, generating a compressive force in the F1 direction (i.e., towards the top cover 112), causing the pore water 220 between the soil particles to flow. However, due to the obstruction of the side wall of the cylinder 110, the pore water 220 can only flow upward towards the top cover 112. Afterward, the pore water 220 will flow out from the small hole 115 near the top cover 112 of the cylinder 110 to the outside of the cylinder 110.

[0045] In some embodiments, the electric heating device includes a heat-conducting plate and / or a resistance wire. Figure 3 A cross-sectional view of a pile foundation according to another embodiment of this application is shown. Figure 3As shown, the electric heating device includes a heat-conducting plate 121 and a resistance wire 122. In some embodiments, the heating device may also include one of the heat-conducting plate 121 and the resistance wire 122. Figure 3 As shown, in some embodiments, the electric heating device further includes a battery 123, which is electrically connected to the heat-conducting plate 121 and the resistance wire 122. When the battery 123 is energized, the heat-conducting plate 121 and the resistance wire 122 can work simultaneously to generate heat waves, forming a heat radiation range 124. The soil on both the inner and outer sides of the cylinder 110 is heated, and the moisture in the soil evaporates as water vapor. In some embodiments, the water vapor evaporated on the inner side of the cylinder 110 can be discharged through the small hole 115, further reducing the moisture content of the soil inside the cylinder 110.

[0046] like Figure 3 As shown, the inner wall 113 of the cylinder 110 also has a plurality of ultraviolet lamps 131. In some embodiments, the curing device includes ultraviolet lamps 131, and the adhesive includes ultraviolet curing adhesive. The ultraviolet curing adhesive can prevent water erosion. In some embodiments, the ultraviolet lamps 131 are embedded in the inner wall 113 of the cylinder 110. By providing ultraviolet lamps 131 and ultraviolet curing adhesive, the cylinder...

[0047] The soil within the 110 pile is solidified, increasing soil saturation, further reducing soil moisture content within the 110 pile, increasing soil hardness within the 110 pile, and further increasing the bearing capacity of the pile foundation 100.

[0048] In some embodiments, the pile formed after the electric heating device is turned on and the adhesive injection and curing are completed (i.e., the cylinder 110 and the soil inside the cylinder 110 that has been heated and cured by adhesive injection) is the pile foundation 100 after pile formation.

[0049] like Figure 2 and Figure 3 As shown, in some embodiments, the pile foundation 100 also includes an isolation plate 141, which is movably disposed on the side wall of the cylinder 110 to block the first opening 111, so as to prevent moisture from the outside of the cylinder 110 from entering the interior of the cylinder 110.

[0050] By setting up the isolation plate 141, moisture from the outside of the cylinder 110 is prevented from entering the inside of the cylinder 110, so that the moisture content inside the cylinder 110 is maintained at a low level.

[0051] In some embodiments, the partition plate 141 is a steel plate.

[0052] Figure 4a A front view schematic diagram of a pile foundation including a partition plate according to another embodiment of this application is shown. Figure 4b It shows Figure 4a A cross-sectional schematic diagram of the pile foundation in the embodiment shown. Figure 4c It shows Figure 4a The illustrated embodiment is a front view of the pile foundation of this application when the isolation plate blocks the first opening. Figure 4d It shows Figure 4c A cross-sectional schematic diagram of the pile foundation in the illustrated embodiment. Wherein, Figure 4a and Figure 4c The shadow represents isolation panel 141.

[0053] like Figures 4a to 4d As shown, in some embodiments, the pile foundation 100 further includes: a push rod 142, disposed on the side wall of the cylinder 110 and connected to the isolation plate 141; and a guide rail 143, disposed on the side wall and bottom of the cylinder 110. The guide rail 143 is configured such that when the push rod 142 is driven by an external force to push the isolation plate 141 to move, the isolation plate 141 moves along the guide rail 143 to the first opening 111 and seals the first opening 111. By setting the guide rail 143 and the push rod 142, the isolation plate 141 can be smoothly moved to the bottom and cover the bottom. Figure 4a and Figure 4b As shown, initially, the isolation plates 141 are only distributed on the side walls of the cylinder 110. (As...) Figure 4c and Figure 4d As shown, under the action of push rod 142, the lower ends of the two isolation plates 141 enter the guide rail 143 respectively. Along the bottom guide rail 143, the lower ends of the two isolation plates 141 move from two opposite directions F2 and F3 at the bottom of the cylinder 110. Finally, the isolation plates 141 on part of the side wall move to the bottom of the first opening 111 and seal the first opening 111.

[0054] In some embodiments, the isolation plate 141 comprises a steel plate. The number of isolation plates 141 can be set according to actual needs. In some embodiments, the thickness of the isolation plate 141 is 3-6 mm. It is understood that, since the shape of the isolation plate 141 on the side wall is not consistent with the shape of the first opening 111, in order to ensure that the first opening 111 can be completely sealed, the area of ​​the isolation plate 141 on the side wall is larger than the area of ​​the first opening 111, and the isolation plates 141 at the first opening 111 may partially overlap each other. In addition, the isolation plate 141 has a certain degree of flexibility, so that it can be bent when entering the guide rail 143.

[0055] In some embodiments, the push rod 142 includes a hydraulic push rod. In some embodiments, when it is necessary to adjust the position of the isolation plate 141 or remove the pile foundation, the isolation plate 141 can also be moved upward by pulling the push rod 142. In some embodiments, the total length of the guide rail 143 at the bottom of the cylinder 110 is the same as the diameter of the first opening 111, so that the isolation plate 141 can smoothly enter the first opening 111 and completely seal the first opening 111. In some embodiments, such as Figure 4b and Figure 4d As shown, the guide rail 143 at the bottom of the cylinder 110 includes a bent portion 143a, which is disposed at the intersection of the side wall and the bottom of the cylinder 110, so that the steel plate partition plate 141 can smoothly enter the first opening 111.

[0056] In some embodiments, the isolation plate 141, the guide rail 143, and the push rod 142 are all disposed on the outer side wall and the bottom of the cylinder 110. In some embodiments, the isolation plate 141, the guide rail, and the push rod 142 are all disposed on the inner side wall and the bottom of the cylinder 110.

[0057] In some embodiments, after the pile is formed, that is, after the glue injection is completed, the isolation plate 141 is pushed to the first opening 111 and the first opening 111 is sealed.

[0058] Figure 5 A cross-sectional schematic diagram of the pile foundation after pile driving is shown. For example... Figure 5 As shown, when the pile foundation 100 is finally formed, all the pile foundations 100 are located below the ground level 210, and the soil inside the cylinder 110 (shaded 150) is tightly bonded and the bottom is sealed.

[0059] like Figure 1 As shown, in some embodiments, the pile foundation 100 further includes a controller 116 disposed on the top cover 112, the controller 116 being connected to an electric heating device to turn the electric heating device on or off; and / or, the controller 116 being connected to a curing device to turn the curing device on or off; and / or, the controller being connected to a push rod 142 to control the movement of the push rod 142.

[0060] In some embodiments, the controller 116 further includes a display for displaying the temperature of the soil inside the cylinder 110 and / or the moisture content of the soil inside the cylinder 110. By setting the display to show the temperature and moisture content, users can intuitively see the current temperature and moisture content of the soil inside the cylinder 110. Furthermore, the real-time detected temperature and moisture content can be transmitted to the controller 116, which then controls the electric heating device to turn on or off in real time, thereby adjusting the temperature and moisture content of the soil inside the cylinder 110.

[0061] In some embodiments, the top of the cylinder 110 is also provided with a connection port for connecting to the photovoltaic bracket, so that the pile foundation 100 supports the photovoltaic bracket. Figure 6 A schematic diagram showing the connection between the pile foundation 100 and the photovoltaic support 400 according to an embodiment of this application is shown. Figure 6 As shown, in some embodiments, the pile foundation 100 is connected to the photovoltaic support 400 via the support column 300 to support the photovoltaic support 400.

[0062] Figure 7a A schematic diagram of the distribution of pile foundations according to an embodiment of this application is shown. Figure 7b It shows Figure 7a A schematic diagram of the cross-section along the DD direction. (See attached diagram.) Figure 7a and Figure 7b As shown, multiple pile foundations 100 of this application are arranged below the ground surface 210 and spaced apart from each other at a certain distance. When each pile foundation 100 bears an object, a stress diffusion zone 160 is formed around each pile foundation 100 to buffer the pressure on the object and strengthen the bearing capacity of the area where the pile foundation 100 is located. Two adjacent pile foundations 100 form a stress superposition zone 161, which further strengthens the bearing capacity of the area where the pile foundation 100 is located. When multiple pile foundations 100 bear objects (including photovoltaic supports, materials, etc.), multiple stress diffusion zones 160 and multiple stress superposition zones 161 form a stress diffusion zone 170 to distribute the stress brought by the object. By setting multiple adjacent pile foundations 100, the bearing capacity of the local silt soil is improved, and the silt soil can be used to support various products or stockpile materials.

[0063] This application also provides a pile foundation system. Figure 8 A pile foundation system according to an embodiment of this application is shown. For example... Figure 8 As shown, this application provides a pile foundation system 1000, including: the aforementioned pile foundation 100; and a glue applicator 500 to allow glue to enter the soil inside a cylinder 110. In some embodiments, the glue applicator 500 includes a glue injection rod 510, which extends into the cylinder 110 through a glue injection hole 114. The glue injection rod 510 has multiple openings 511 on its tube, allowing the glue to flow out from these openings 511 and reach the soil at different depths inside the cylinder 110. In some embodiments, the length of the glue injection rod 510 within the cylinder 110 is less than or equal to the height of the cylinder 110.

[0064] Figure 9 A schematic diagram of a pile foundation forming method according to an embodiment of this application is shown. Figure 9 As shown, the molding method includes:

[0065] Step S91: Insert the cylinder into the soil;

[0066] Step S92: Turn on the electric heating device;

[0067] Step S93: Inject glue into the cylinder and turn on the curing device;

[0068] Step S94: Push the isolation plate to seal the first opening of the cylinder.

[0069] In some embodiments, in step S91, initially, the cylinder 110 can be hung on a line using a crane or similar tool, and the cylinder 110 can be accurately positioned at the point on the column 300. After the crane releases the line suspending the cylinder 110, the cylinder 110 is inserted into the soil using its own weight or by applying a certain external force. During the insertion process, such as... Figure 2 As shown, the water inside the cylinder 110 is discharged to the outside of the cylinder 110 through the small hole 115.

[0070] In some embodiments, in step S92, such as Figure 3 As shown, the controller 116 turns on the battery 123, causing the heat-conducting plate 121 and the resistance wire 122 to heat up and evaporate the water near the cylinder 110. The heating time depends on the temperature and moisture content displayed on the screen, and heating stops when the temperature and moisture content meet the requirements.

[0071] Step S93 is performed after step S92. Reducing the moisture content in step S92 before performing step S93 results in better soil bonding.

[0072] In some embodiments, in step S93, such as Figure 8 As shown, the injection rod 510 is inserted into the soil through the injection hole 114, and then the glue applicator 500 is started to allow the glue to flow out from the injection rod 510. During the glue injection process, the ultraviolet lamp 131 is turned on via the controller 116 to help the glue cure. In some embodiments, the ultraviolet lamp 131 can also be turned on after the glue injection is completed. Once the glue has bonded the soil particles in the soil layer, the pile foundation 100 is formed.

[0073] In some embodiments, in step S94, such as Figures 4a-4d As shown, the controller 116 activates the switch of the push rod 142 to push the isolation plate 151 to seal the bottom of the pile foundation 100, so that the soil inside the pile foundation 100 is completely isolated from the external pore water 220, in order to prevent the soil inside the pile foundation 100 from being eroded by external water.

[0074] This application reduces the moisture content around the pile foundation by incorporating a cylinder 110 and an electric heating device. By incorporating an injection hole 114 and a curing device, the soil hardness inside the cylinder is increased after the injection and curing process, thereby enhancing the bearing capacity, pull-out resistance, and horizontal force of the pile foundation 100, further improving its stability. The application also incorporates an isolation plate 141 to prevent water from entering the interior of the pile foundation 100, ensuring its long-term use. Furthermore, the application includes a controller 116 and a display, which can monitor and adjust the soil moisture content inside the pile foundation 100 in real time, further ensuring the smooth pile formation process and long-term use of the pile foundation 100. In addition, the pile foundation 100 and pile foundation system 1000 proposed in this application are portable and lightweight, eliminating the need for heavy piling equipment and making initial construction feasible.

[0075] While the foregoing disclosure has discussed various examples of utility model embodiments that are currently considered useful, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments. Rather, the claims are intended to cover all modifications and equivalent combinations that conform to the spirit and scope of the present utility model embodiments. For example, although the system components described above can be implemented by hardware devices, they can also be implemented solely by software solutions, such as installing the described system on existing servers or mobile devices.

[0076] Similarly, it should be noted that, in order to simplify the description of this utility model and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of this utility model sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the object of this utility model requires more features than those mentioned in the claims. In fact, the embodiments have fewer features than all the features of the single embodiment disclosed above.

[0077] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed according to the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of range in some embodiments of this invention are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

Claims

1. A pile foundation, characterized in that, include: A hollow cylinder for inserting into soil, the bottom of the cylinder has a first opening, and the top of the cylinder has a top cover; An electric heating device is installed on the inner wall of the cylinder to evaporate the moisture in the soil on both the inner and outer sides of the cylinder. An injection hole is provided in the top cover to allow the adhesive to be injected into the interior of the cylinder, thereby increasing the hardness of the soil inside the cylinder. as well as A curing device is disposed on the inner side wall of the cylinder and is used to cure the colloid.

2. The pile foundation as described in claim 1, characterized in that, The diameter of the first opening is larger than the diameter of the top of the cylinder.

3. The pile foundation as described in claim 1, characterized in that, It also includes a baffle plate, which is movably disposed on the side wall of the cylinder to seal the first opening and prevent moisture from the outside of the cylinder from entering the interior of the cylinder.

4. The pile foundation as described in claim 3, characterized in that, Also includes: A push rod is disposed on the side wall of the cylinder and connected to the isolation plate; A guide rail is provided on the side wall and bottom of the cylinder. The guide rail is configured such that when the push rod is driven by an external force to move the isolation plate, the isolation plate moves along the guide rail to the first opening and blocks the first opening.

5. The pile foundation as described in claim 1, characterized in that, The electric heating device includes a heat-conducting plate and / or a resistance wire.

6. The pile foundation as described in claim 1 or 2, characterized in that, The cylindrical body includes: Multiple small holes are provided through the side wall of the cylinder and near the top cover to allow gas and moisture inside the cylinder to be discharged to the outside of the cylinder.

7. The pile foundation as described in claim 1, characterized in that, The curing device includes an ultraviolet lamp, and the colloid includes an ultraviolet-curable adhesive.

8. The pile foundation as described in claim 4, characterized in that, It also includes a controller disposed on the top cover, the controller being connected to the electric heating device to turn the electric heating device on or off; and / or, The controller is connected to the curing device to turn the curing device on or off. And / or, The controller is connected to the push rod to control the movement of the push rod.

9. The pile foundation as described in claim 8, characterized in that, The controller also includes a display for displaying the temperature of the soil inside the cylinder and / or the moisture content of the soil inside the cylinder.

10. A pile foundation system, characterized in that, include: The pile foundation as described in any one of claims 1-9; as well as A glue applicator is used to allow the glue to enter the soil inside the cylinder.

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