Wall forming device and wall forming method for underground continuous wall of soil ground

Abstract

The invention relates to the technical field of foundation wall building, and discloses a wall forming device and method for a continuous wall under a soil foundation, the wall forming device comprises a plurality of electrode plates and a controller used for control and data processing, and the outer sides of the electrode plates are sleeved with boot shells used for being inserted into foundation soil and protecting the electrode plates; the boot shell is provided with a temperature monitoring device used for monitoring the temperature of foundation soil, and the controller is electrically connected with the temperature monitoring device and the electrode plates. A traditional excavation operation mode can be replaced, the strength of foundation soil is directly improved, a continuous target wall is formed, and resource investment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation wall construction, and specifically to a wall-forming device and a wall-forming method for a soil foundation diaphragm wall. Background Art

[0002] The development of construction work is inseparable from the treatment of the foundation of structures. As one of the foundation treatment methods, the diaphragm wall has been widely used. The traditional diaphragm wall construction method is as follows: on the ground, a grooving machine is used to excavate a long and narrow deep groove along the peripheral axis of the deep excavation project under the condition of slurry support. After the groove is cleaned, a steel reinforcement cage is hoisted into the groove, and then underwater concrete is poured by the conduit method to form a unit groove section. In this way, section by section, a continuous reinforced concrete wall is built underground as a water cutoff, anti-seepage, load-bearing, and water retaining structure. The traditional diaphragm wall construction method does not utilize the site soil, and at the same time consumes cement, steel bars, and a large amount of human resources. In the current production background of cost reduction and efficiency increase, it is the general trend to optimize the diaphragm wall construction method and reduce resource consumption.

[0003] In the diaphragm wall construction method, technicians have proposed the construction method of jet grouting piles. Cement slurry is pressed into the foundation soil to disturb the original soil and mix it with the cement slurry to improve the strength of the foundation soil. The jet grouting piles are constructed cyclically, and finally a continuous wall is formed. However, this method also disturbs the original foundation soil and consumes cement. Summary of the Invention

[0004] The purpose of the present invention is to provide a wall-forming device and a wall-forming method for a soil foundation diaphragm wall that can replace the traditional excavation operation method, directly improve the strength of the foundation soil, form a continuous target wall, and reduce resource investment.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A wall-forming device and a wall-forming method for a soil foundation diaphragm wall of the present invention include a plurality of electrode plates and a controller for control and data processing. A boot shell for inserting into the foundation soil and protecting the electrode plates is sleeved outside the electrode plates. A temperature monitoring device for monitoring the temperature of the foundation soil is arranged on the boot shell. The controller is electrically connected to the temperature monitoring device and the plurality of electrode plates respectively.

[0007] Furthermore, the plurality of electrode plates are arranged vertically side by side. The distance between adjacent two electrode plates is greater than the breakdown distance of the electromagnetic field, and the electrodes of adjacent two electrode plates are opposite.

[0008] Further, the boot shell is a hollow shell with one end open, a pile sinking cushion block is connected to the open end of the boot shell, the cross-section of the boot shell at the end far from the open end is triangular, and a limiting component for limiting the electrode plate is fixedly connected inside the boot shell.

[0009] Further, the limiting component includes a plurality of limiting plate groups arranged at equal intervals, each limiting plate group includes two limiting plates arranged side by side, the two limiting plates are arranged opposite to each other, and the electrode plate is placed between the two limiting plates.

[0010] Further, a plurality of vertical ventilation holes are formed in the limiting plate, a heat dissipation fan is arranged at the open end of the boot shell, a ventilation hole for communicating the inner cavity of the boot shell with the external environment is formed on one side of the pile sinking cushion block, the heat dissipation fan is installed on one side of the pile sinking cushion block, the pile sinking cushion block isolates the heat dissipation fan from the ventilation hole of the pile sinking cushion block, and the heat dissipation fan is communicated with the inner cavity of the boot shell.

[0011] Further, the temperature monitoring device includes a plurality of temperature sensors, and the plurality of temperature sensors are arranged at equal intervals.

[0012] A method for forming a diaphragm wall in a soil foundation, characterized by including uniformly arranging a boot shell with an electrode plate in a foundation area to be treated;

[0013] Controlling the high-frequency transformation of the charge polarity on the electrode plate through a controller, so that a high-frequency transformed electromagnetic field is generated between two adjacent electrode plates, and the high-frequency transformed electromagnetic field heats the foundation soil to realize the heat treatment of the foundation soil between the electrode plates;

[0014] Monitoring the soil temperature of the foundation soil through a temperature monitoring device;

[0015] After the soil temperature of the foundation soil reaches the target temperature, maintaining for a period of time, and the electrode plate stops working;

[0016] Taking out the electrode plate and the boot shell from the foundation soil, and backfilling cement into the position where the boot shell is arranged in the foundation soil to fill the working hole formed by the boot shell, so as to form a diaphragm wall directly using the foundation soil, that is, forming a target wall.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The present invention can replace the traditional excavation operation method, directly improve the strength of the foundation soil, form a continuous target wall, and reduce resource investment. Description of the Drawings

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0020] Figure 1 is the usage sectional view of the present invention;

[0021] Figure 2 is the usage top view of the present invention;

[0022] Figure 3 is the schematic diagram of the overall structure of the device of the present invention;

[0023] Figure 4 is the wall-forming effect diagram of the present invention.

[0024] Reference numerals: electrode plate 1; controller 2; foundation soil 3; shoe shell 4; pile sinking cushion block 5; limit plate 6; ventilation hole 7; heat dissipation fan 8; temperature sensor 9. Specific embodiments

[0025] The following illustrates the embodiments of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0026] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the layers related to the present invention are shown in the diagrams, rather than being drawn according to the number, shape, and size of the layers in actual implementation. The type, quantity, and ratio of each layer in actual implementation can be arbitrarily changed, and the layer layout type may also be more complex.

[0027] In the following description, a large number of details are explored to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details.

[0028] Please refer to Figures 1 to 4, A wall-forming device for a soil foundation diaphragm wall, comprising a plurality of electrode plates 1 and a controller 2 for control and data processing. A boot shell 4 for inserting into the foundation soil 3 and protecting the electrode plates 1 is sleeved outside the electrode plates 1. A temperature monitoring device for monitoring the temperature of the foundation soil 3 is arranged on the boot shell 4. The controller 2 is electrically connected to the temperature monitoring device and the plurality of electrode plates 1 respectively.

[0029] Please refer to Figure 1 , The plurality of electrode plates 1 are arranged vertically side by side. The distance between two adjacent electrode plates 1 is greater than the breakdown distance of the electromagnetic field, and the electrodes of two adjacent electrode plates 1 are opposite.

[0030] Please refer to Figure 3 , The boot shell 4 is a hollow shell with one end open. A pile sinking cushion block 5 is connected to the open end of the boot shell 4. The cross section of the boot shell 4 at the end far from the open end is triangular. A limiting component for limiting the electrode plates 1 is fixedly connected inside the boot shell 4.

[0031] Please refer to Figure 3 , The limiting component includes a plurality of limiting plate groups arranged at equal intervals. Each limiting plate group includes two limiting plates 6 arranged side by side. The two limiting plates 6 are arranged opposite to each other, and the electrode plate 1 is placed between the two limiting plates 6.

[0032] Please refer to Figure 3 , A plurality of vertical ventilation holes 7 are opened on the limiting plate 6. A cooling fan 8 is arranged at the open end of the boot shell 4. A ventilation hole 7 for communicating the inner cavity of the boot shell 4 with the external environment is opened on one side of the pile sinking cushion block 5. The cooling fan 8 is installed on one side of the pile sinking cushion block 5. The pile sinking cushion block 5 isolates the cooling fan 8 from the ventilation hole 7 of the pile sinking cushion block 5, and the cooling fan 8 is communicated with the inner cavity of the boot shell 4.

[0033] Please refer to Figure 1 and Figure 3 , The temperature monitoring device includes a plurality of temperature sensors 9, and the plurality of temperature sensors 9 are arranged at equal intervals.

[0034] The electrode plate 1 is made of a metal material capable of storing electric charges, such as copper, iron, aluminum, etc. The boot shell 4 has a certain strength but does not affect the transmission of the electric field, and is made of ceramic or cement materials. The boot shell 4 is inserted into the position of the foundation to be treated at a certain distance, and the electrode plate 1 is placed inside the boot shell 4. The electrode plate 1 is suitable in size to the boot shell 4, and isolates the upper space of the boot shell 4 through the electrode plate 1, while the lower space is connected. The pile sinking cushion block 5 at the top of the boot shell 4 protects the boot shell 4 from being damaged and keeps the inside of the boot shell 4 clean, preventing muck from falling in. And the electrode plate 1 is limited in the boot shell 4 through the limiting plate 6. A heat dissipation fan 8 is installed on the top of the boot shell 4 through the pile sinking cushion block 5. A "U"-shaped air flow channel communicating with the external environment is formed through the vertical ventilation holes 7 on the limiting plate 6, the lower space of the boot shell 4, and the ventilation holes 7 on the pile sinking cushion block 5. Each electrode plate 1 is connected to the controller 2 to control the charge polarity of each electrode plate 1. By changing the charge polarity of the electrode plate 1 at a high frequency through the controller 2, a high-frequency alternating electromagnetic field is generated between the electrode plates 1 to realize the heating of the foundation soil 3. During the operation of the electrode plate 1, the heat of the foundation soil 3 is conducted into the boot shell 4. The high-temperature gas will reduce the working performance of the electrode plate 1. The heat dissipation fan 8 sucks the low-temperature air in the external environment into the boot shell 4 through the "U"-shaped air flow channel, takes away the hot gas affecting the electrode plate 1, and discharges it to the external environment, accelerating the air flow in the boot shell 4 and dissipating the heat in the boot shell 4 to ensure the normal working ability of the electrode plate 1. The temperature monitoring device arranged in the boot shell 4 of the electrode plate 1 monitors the temperature of the foundation soil 3 from multiple positions through the temperature sensor 9 to realize the temperature monitoring of multiple positions of the soil body, judge the state of the soil body, and determine the heating time.

[0035] Please refer to Figures 1 to 4 , a method for forming a diaphragm wall of a soil foundation, including uniformly arranging the boot shell 4 with the electrode plate 1 placed therein in the foundation area to be treated;

[0036] Controlling the high-frequency alternation of the charge polarity on the electrode plate 1 through the controller 2, so that a high-frequency alternating electromagnetic field is generated between two adjacent electrode plates 1, and the high-frequency alternating electromagnetic field heats the foundation soil 3 to realize the heat treatment of the foundation soil 3 between the electrode plates 1;

[0037] Monitoring the soil temperature of the foundation soil 3 through the temperature monitoring device;

[0038] After the soil temperature of the foundation soil 3 reaches the target temperature, maintain for a period of time, and the electrode plate 1 stops working;

[0039] Taking out the electrode plate 1 and the boot shell 4 from the foundation soil 3 body, and backfilling cement into the position where the boot shell 4 is arranged in the foundation soil 3 body to fill the working hole formed by the boot shell 4 to form a diaphragm wall directly using the foundation soil 3, that is, forming the target wall.

[0040] The principle of the present invention is as follows: Loess and silt soil bodies contain polar molecules such as water, chloride ions, and potassium ions. The polar molecules are arranged randomly in the electromagnetic field and then aligned with the direction of the electromagnetic field. With the high-frequency conversion of the electromagnetic field direction, the polar molecules in the soil body will also change with the high-frequency variation of the magnetic field. After the electrode plate 1 is powered on, the charges of adjacent electrode plates 1 are different, forming an electromagnetic field between the electrode plates 1. By high-frequency changing the charge polarity of the electrode plate 1, an electromagnetic field with high-frequency variation is obtained. Some polar molecules in the soil body move back and forth at high frequency in the electromagnetic field, generating "internal frictional heat" to increase the temperature of the soil body, realizing the change of the physical properties of loess and silt and the improvement of strength.

[0041] The present invention can replace the traditional excavation operation mode. By directly increasing the strength of the foundation soil 3, a continuous target wall is formed, reducing resource investment.

[0042] In the above embodiments, although the present invention has been described in combination with specific embodiments of the present invention, many substitutions, modifications, and variations of these embodiments will be obvious to those of ordinary skill in the art based on the previous description. The embodiments of the present invention are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims.

[0043] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A device for forming a continuous wall underground in a soil foundation, characterized in that: The invention comprises a plurality of electrode plates (1) and a controller (2) for control and data processing, wherein a boot shell (4) for inserting into foundation soil (3) and protecting the electrode plates (1) is sleeved on the outer side of the electrode plates (1), and a temperature monitoring device for monitoring the temperature of the foundation soil (3) is arranged on the boot shell (4), and the controller (2) is electrically connected to the temperature monitoring device and the plurality of electrode plates (1) respectively.

2. The device for forming a continuous wall underground in a soil foundation according to claim 1, characterized in that: The plurality of electrode plates (1) are arranged vertically in parallel, the distance between two adjacent electrode plates (1) is greater than the breakdown distance of the electromagnetic field, and the electrodes of the two adjacent electrode plates (1) are opposite.

3. The device for forming a continuous wall underground in a soil foundation according to claim 1, characterized in that: The boot shell (4) is a hollow shell with an open end. The open end of the boot shell (4) is connected to a pile sinking pad (5). The cross-section of the boot shell (4) away from the open end is triangular. A limiting component for limiting the position of the electrode plate (1) is fixedly connected inside the boot shell (4).

4. The device for forming a continuous wall underground in a soil foundation according to claim 3, characterized in that: The limiting assembly comprises a plurality of limiting plate groups arranged at even intervals, the limiting plate group comprises two limiting plates (6) arranged in parallel, the two limiting plates (6) are arranged opposite to each other, and the electrode plate (1) is placed between the two limiting plates (6).

5. The device for forming a continuous wall underground in a soil foundation according to claim 4, characterized in that: The limiting plate (6) is provided with a plurality of vertical ventilation holes (7); a cooling fan (8) is provided at one end of the opening of the boot shell (4); a ventilation hole (7) for connecting the inner cavity of the boot shell (4) with the external environment is provided on one side of the pile sinking pad (5); the cooling fan (8) is installed on one side of the pile sinking pad (5); the pile sinking pad (5) isolates the cooling fan (8) from the ventilation hole (7) of the pile sinking pad (5), and the cooling fan (8) is connected to the inner cavity of the boot shell (4).

6. The device for forming a continuous wall underground in a soil foundation according to claim 5, characterized in that: The temperature monitoring device comprises a plurality of temperature sensors (9), and the plurality of temperature sensors (9) are evenly spaced.

7. A method for forming a continuous wall underground in a soil foundation, characterized in that: The method comprises evenly placing a shoe shell (4) on which an electrode plate (1) is placed in a foundation area that needs to be treated; The controller (2) controls the high-frequency conversion of the polarity of the charges on the electrode plates (1), so that a high-frequency converted electromagnetic field is generated between two adjacent electrode plates (1), and the high-frequency converted electromagnetic field heats the foundation soil (3), thereby achieving heat treatment of the foundation soil (3) between the electrode plates (1); Monitoring the soil temperature of the foundation soil (3) by means of a temperature monitoring device; When the temperature of the foundation soil (3) reaches the target temperature and remains at that temperature for a period of time, the electrode plate (1) stops working; The electrode plate (1) and the shoe shell (4) are taken out from the foundation soil (3), and cement is backfilled into the position where the shoe shell (4) is set in the foundation soil (3) to fill the working hole formed by the shoe shell (4), so as to form an underground continuous wall that directly utilizes the foundation soil (3), that is, to form a target wall.

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