A smart electrolytic desaturation seepage-proof straight slab and its construction method

By designing an intelligent electrolysis desaturation and seepage prevention straight plate, the problems of small electrolysis range and poor stability were solved, realizing large-scale electrolysis and seepage blocking, enhancing the soil's resistance to liquefaction, reducing energy consumption, and improving the safety and stability of the device.

CN116695678BActive Publication Date: 2025-12-02HOHAI UNIV
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Patent Information

Application Number
CN202310790887.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-30
Publication Date
2025-12-02
Estimated Expiration
2043-06-30

AI Technical Summary

Technical Problem

Existing electrolytic desaturation methods for near-water tunnel construction suffer from problems such as small electrolysis range, poor stability, complex equipment, and susceptibility to soil disturbance, making it difficult to effectively enhance the soil's resistance to liquefaction and alleviate seepage.

Method used

A smart electrolytic desaturation seepage-proof straight plate was designed, including an outer shell, a flow channel, and an electrolysis device. The outer shell has flow channels on both sides and an electrolysis device inside. The electrolysis device consists of a protective frame, a conductor, a smart device, and an electrolysis layer. The flow channel guides water flow through holes, and the electrolysis layer consists of multiple layers of negative and positive electrolysis units. The smart device controls the electrolysis process, reduces heat generation, and enhances stability.

Benefits of technology

It achieves large-scale electrolysis, reduces soil disturbance, improves soil liquefaction resistance and seepage blocking effect, reduces energy consumption, and ensures the durability and safety of the device.

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Abstract

This invention discloses an intelligent electrolytic desaturation seepage-proof straight plate and its construction method, comprising a shell, drainage channels, and an electrolysis device. The drainage channels are located on both sides of the shell, and the electrolysis device is located inside the shell. The electrolysis device includes a protective frame, a conductor, an intelligent device, a seepage-proof layer, and an electrolysis layer. The electrolysis layer is fitted to the inner side of the shell, and the seepage-proof layer is filled inside the electrolysis layer. The protective frame is embedded in the seepage-proof layer, and the intelligent device and conductor are installed inside the protective frame. This invention minimizes disturbance to the surrounding soil, has a large electrolysis range, and good stability. It can achieve intelligent layered electrolysis based on seepage prevention and drainage, i.e., it can complete the parallel closed electrolysis circuit that arbitrarily controls the switch of any circuit. Furthermore, the drainage channels on both sides enhance the stability during desaturation, resisting disturbances within the soil. Simultaneously, the straight plate can also block seepage in the direction of the plate surface; the large area of ​​the straight plate and the drainage channels on both sides effectively hinder seepage in this direction.
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Description

Technical Field

[0001] This invention relates to a seepage-proof straight slab and its construction method, and more particularly to an intelligent electrolytic desaturation seepage-proof straight slab and its construction method. Background Technology

[0002] The construction of near-water tunnels often faces two common obstacles: soil liquefaction and ground seepage. Specifically, liquefaction is the phenomenon where highly saturated soil loses its original strength and becomes fluid when disturbed; while seepage generally refers to the process of water seeping and moving through the soil.

[0003] Soil liquefaction can damage the structure and stability of near-water tunnels, leading to collapse, tilting, or even uplift. Compared to buildings, near-water tunnels are more susceptible to soil liquefaction because they are typically built underground and surrounded by highly saturated soil, making them more vulnerable. Secondly, seepage also poses a significant threat to near-water tunnels. Seepage failures such as piping and soil erosion can lead to loosening, collapse, and settlement of the surrounding soil. These problems directly affect the safety and usability of the tunnel, and may even threaten the safety of nearby buildings and residents.

[0004] In recent years, new anti-liquefaction measures based on electrolytic desaturation have begun to be applied and invented. This involves electrolyzing the soil to generate gas, expelling water from the soil, reducing the saturation of the foundation, and thus improving its resistance to liquefaction. However, existing electrolytic desaturation methods have many shortcomings. For example, some methods use prefabricated devices, resulting in a relatively crude application that limits large-scale promotion and use. Furthermore, the electrolysis process within the soil generates heat, which can reduce equipment lifespan and cause unpredictable reactions within the soil, affecting the safety of the device. Finally, existing electrolysis devices are complex to use and difficult to construct, as seen in patent number CN201520267825.X. Although there are more intelligent prefabricated electrolytic desaturation piles, their electrolysis range is small and the electrolysis area is dispersed. Additionally, their stability within the soil and their resistance to disturbance are poor, as seen in patent number CN202110024390.6.

[0005] In conclusion, in response to the aforementioned water tunnel problems, there is an urgent need to develop an intelligent desaturation device that can both stabilize and enhance the soil's resistance to liquefaction and effectively alleviate seepage within the soil. Summary of the Invention

[0006] Purpose of the invention: The purpose of this invention is to provide an intelligent electrolytic desaturation seepage-proof straight plate and its construction method, which has minimal disturbance to the surrounding soil, a large electrolysis range, and good stability.

[0007] Technical solution: The present invention includes a shell, a drainage channel, and an electrolysis device. The drainage channel is located on both sides of the shell, and the electrolysis device is located inside the shell. The electrolysis device includes a protective frame, a conductor, an intelligent device, a seepage-proof layer, and an electrolysis layer. The electrolysis layer is attached to the inner side of the shell, the seepage-proof layer is filled inside the electrolysis layer, the protective frame is embedded in the seepage-proof layer, and the intelligent device and the conductor are installed inside the protective frame.

[0008] The drainage channel includes a perforated cylinder, which includes a bottom cylinder and a top cylinder. The bottom cylinder and the top cylinder are each perforated with a number of holes along the thickness direction. The holes on the bottom cylinder and the holes on the top cylinder are staggered to guide the seepage of water in the soil.

[0009] The protective frame includes a rigid frame and an insulated heat dissipation frame. The rigid frame contains an intelligent device, and the insulated heat dissipation frame contains a conductor.

[0010] The electrolytic layer comprises multiple electrolytic units, each of which includes a negative electrolytic unit and a positive electrolytic unit, and each negative electrolytic unit and the positive electrolytic unit are separated by an insulating material.

[0011] The intelligent device includes a humidity detector, a switch, and a connector. The connector includes an electrolytic layer connector and a conductor connector, which are symmetrically arranged on both sides of the switch along the radial direction of the switch.

[0012] The electrolytic layer connectors are embedded in the rigid frame and in contact with the electrolytic layer. One electrolytic layer connector is in contact with the negative electrolytic unit of the electrolytic layer, and the other electrolytic layer connector is in contact with the positive electrolytic unit of the electrolytic layer.

[0013] The conductor connector includes a fixed part and a rotating part. A reset device is connected to the rotating part. A wire is connected between the fixed part and the rotating part. When the switch is turned on, the switch rotates, causing the rotating part of the conductor connector to rotate together.

[0014] The rotating part is fixed to the outer side of the switch, and the fixing part is embedded in the insulating heat sink frame. The fixing parts on both sides of the switch are in contact with the positive and negative conductors of the external power supply.

[0015] In the conductor connector, one conductor connector on the side of the electrolysis layer connector that contacts the negative electrolysis unit is in contact with the negative electrode of the conductor, and the other conductor connector is in contact with the positive electrode of the conductor. During electrolysis of the electrolysis layer, a closed circuit is formed by connecting the electrolysis layer connector, the conductor connector, the conductor, and the external positive and negative electrodes.

[0016] The construction method for the intelligent electrolytic desaturation seepage-proof straight slab, as described above, includes the following steps:

[0017] (a) Pre-design the number and distribution of intelligent electrolytic desaturation and seepage prevention straight plates that need to be installed;

[0018] (b) Lift the straight plate and suspend it at the predetermined position, aligning the tip of the plate vertically with the preset position, insert it into the soil, and accurately control the position;

[0019] (c) Correction: Set a ruler on the side of the board before driving in;

[0020] (d) Static pressure construction, driving the straight plate into the soil to the designed height;

[0021] (e) After all the boards are installed, drainage channels shall be installed;

[0022] (f) Connect the wires inside the plate to the electrodes and start electrolysis.

[0023] Beneficial effects: This invention minimizes disturbance to the surrounding soil, has a large electrolysis range, and exhibits good stability. It enables intelligent layered electrolysis based on seepage prevention and drainage, allowing for the parallel closed electrolysis circuit with arbitrary control of any branch circuit switch. Furthermore, the drainage channels on both sides mitigate sudden changes in internal pore pressure, enhancing desaturation stability and effectively resisting disturbances within the soil. Simultaneously, the straight plate can block seepage in the direction of the plate surface, effectively hindering seepage in this direction through the large area of ​​the straight plate and the drainage channels on both sides. In addition, this invention reduces the heat generated during the electrolysis process, lowers energy consumption, and ensures the durability and safety of the device. Attached Figure Description

[0024] Figure 1 This is an exploded view of the present invention;

[0025] Figure 2 This is a front perspective view of the present invention;

[0026] Figure 3 This is a schematic diagram of the drainage channel of the present invention;

[0027] Figure 4 This is a schematic diagram of a perforated tube with staggered holes in the drainage channel of the present invention;

[0028] Figure 5 This is a schematic diagram of the electrolytic layer of the present invention;

[0029] Figure 6 This is a schematic diagram of the impermeable layer of the present invention;

[0030] Figure 7 This is a schematic diagram of the overall protective frame of the present invention;

[0031] Figure 8 This is a schematic diagram of the intelligent device of the present invention;

[0032] Figure 9 This is a schematic diagram illustrating the working principle of the intelligent device of the present invention;

[0033] Figure 10 This invention provides a detailed view of the internal structure of an electrolytic cell, showing its rear side.

[0034] Figure 11 This invention provides a detailed frontal view of the internal structure of an electrolytic cell.

[0035] Figure 12 This is a schematic diagram of the seepage prevention mechanism of the device of the present invention;

[0036] Figure 13 This is a flowchart illustrating the construction process of the device of the present invention. Detailed Implementation

[0037] The invention will now be further described with reference to the accompanying drawings.

[0038] like Figure 1 and Figure 2 As shown, the present invention includes a shell 6, a drainage channel 7, and an electrolysis device. The drainage channel 7 is located on both sides of the shell 6 to guide the seepage of water within the soil. The electrolysis device is located inside the shell 6. The shell 6 is made of a high-density material with porous surfaces to protect the internal device. During construction, static pressure is applied above it to drive the entire device into the foundation. The electrolysis device includes a protective frame 1, a conductor 2, an intelligent device 3, a seepage-proof layer 4, and an electrolysis layer 5. The electrolysis layer 5 is tightly wrapped around the inner side of the shell 6. The seepage-proof layer 4 is filled inside the electrolysis layer 5 and is made of a waterproof material, such as a polymer. The protective frame 1 is embedded in the seepage-proof layer 4 and contains the intelligent device 3 and the conductor 2.

[0039] like Figure 3 and Figure 4 As shown, the drainage channel 7 includes a perforated cylinder arranged along the depth direction of the soil. The perforated cylinder includes a bottom cylinder 701 and a top cylinder 702. Both the bottom cylinder 701 and the top cylinder 702 have several holes drilled through them along their thickness direction. The holes on the bottom cylinder 701 are staggered from those on the top cylinder 702. The bottom cylinder 701 is fixed to both sides of the outer shell 6. The channel below it is filled with permeable material, and holes corresponding to the holes on the bottom cylinder 701 are drilled within the permeable material. Non-woven fabric is laid inside the hole walls. The top cylinder 702 is movable and has a certain weight. The opening at the top of the channel above the top cylinder 702 is sealed by non-woven fabric, grid, or other materials to restrict the displacement of the top cylinder 702 and prevent external soil particles from entering and clogging the channel. The weight of the top cylinder 702 can be set according to the pressure acting on the bottom surface under still water and the desired stability, but it must not be lower than the pressure under still water. Generally, it can be 1.2 to 1.8 times the pressure acting on the bottom surface under still water.

[0040] The drainage channel 7 is used to guide the seepage of water within the soil, and whether or not drainage is controlled by the internal perforated cylinder. When the seepage is slow, the bottom cylinder 701 and the top cylinder 702 do not separate, and no drainage is performed at this time; during operation, the top cylinder 702 floats up, and the seepage flows out through the holes in the bottom cylinder 701 and the top cylinder 702. The drainage channels 7 on both sides enhance the stability of the desaturation layer and can better resist disturbances within the soil. At the same time, due to the presence of the drainage channel 7 and the internal impermeable layer 4, the large-area straight plate and the drainage channels on both sides can effectively block seepage in the direction of the plate surface.

[0041] like Figure 5 As shown, the electrolysis layer 5 comprises multiple layers of electrolytic elements arranged along the depth direction of the soil. Each layer of electrolytic elements includes a negative electrolysis unit 501 and a positive electrolysis unit 502, with a height ratio of 1:2 between the negative electrolysis unit 501 and the positive electrolysis unit 502. The negative electrolysis unit 501 and the positive electrolysis unit 502 are separated by an insulating material. Each layer of electrolytic elements is equipped with a corresponding intelligent device 3. The length of each electrolytic element along the depth direction can be set according to the soil layer distribution and requirements of the site conditions. For example, it is generally uniformly distributed by default. For complex conditions, the depth direction length of some electrolytic elements can be reduced to increase the density of the distribution and improve accuracy and stability. Alternatively, the depth direction length can be increased to increase the density of the distribution and treat soil layers with less impact.

[0042] like Figure 6 As shown, the impermeable layer 4 is made of impermeable material, such as polymer, and is used to fill the interior of the electrolysis layer 5. It also has a groove for embedding the protective frame 1. When the intelligent electrolysis desaturation impermeable straight plate is driven into the ground, the side without the protective frame 1 should be aligned with the seepage direction, that is, the side without the protective frame should be aligned with the high water head area. Figure 12 As shown, only at this point can a better seepage prevention effect be achieved.

[0043] like Figure 7 As shown, the protective frame 1 includes a rigid frame 101 and an insulating heat dissipation frame 102. The rigid frame 101 contains an intelligent device 3, and the insulating heat dissipation frame 102 contains a conductor 2.

[0044] like Figures 8-11 As shown, the intelligent device 3 includes a humidity detector 301, a switch 302, a connector, and a resetter 304. The connector includes two electrolytic layer connectors 305 and two conductor connectors 303, which are symmetrically arranged on both sides of the switch 302 along the radial direction. The electrolytic layer connectors 305 are embedded in the rigid frame 101 and contact the electrolytic layer 5. One electrolytic layer connector 305 contacts the negative electrolytic unit of the electrolytic layer, and the other electrolytic layer connector 305 contacts the positive electrolytic unit of the electrolytic layer.

[0045] The conductor connector 303 includes a fixed part and a rotating part. A resetter 304 is connected to the rotating part. A wire is connected between the fixed part and the rotating part. The rotating part is fixed to the outer side of the switch 302. The fixed part is embedded in the insulating heat sink frame 102. The fixed parts on both sides of the switch 302 are in contact with the positive and negative poles of the conductor 2, respectively. Among them, the conductor connector 303 on the side closer to the electrolysis layer connector 305 that is in contact with the negative electrolysis unit is in contact with the negative pole of the conductor 2, and the other conductor connector 303 is in contact with the positive pole of the conductor 2.

[0046] Humidity detector 301 controls a switch according to a preset threshold. When the switch is turned on, switch 302 rotates clockwise, causing the rotating part of conductor connector 303 to rotate as well. When the rotating part contacts the electrolytic layer connector 305, a branch circuit in the electrolytic main circuit is connected. Figure 9 As shown; when the switch is closed, the resetter 304 pulls the switch 302 to rotate in the opposite direction, causing the conductor connector 303 and the electrolytic layer connector 305 to separate, at which point the electrolytic branch circuit is disconnected. During electrolysis of the electrolytic layer, a closed circuit is formed by connecting the electrolytic layer connector 305, the conductor connector 304, and the conductor 2 to the external positive and negative electrodes. When multiple electrolytic elements are electrolyzed, they form a parallel circuit.

[0047] The construction method of the present invention, such as Figure 13 As shown, it includes the following steps:

[0048] (a) Pre-design the number and distribution of intelligent electrolytic desaturation and seepage prevention straight plates that need to be installed;

[0049] (b) The pile driver is positioned, the hoisting plate is suspended in the predetermined position, the tip of the plate is vertically aligned with the preset position, and it is slowly lowered into the soil, with precise control of the position.

[0050] (c) Correction: When inserting a straight plate, the verticality deviation shall not exceed 0.5%, and a ruler shall be set on the side of the plate before it is driven in so as to observe and record during construction;

[0051] (d) Select and install the appropriate pressure head style, start static pressure construction, drive the straight plate into the soil to the designed height, and at the same time ensure that the conductor is exposed on the ground surface;

[0052] (e) After the work of driving the straight plate into the soil is completed, any excess pits should be filled with sand and compacted in a timely manner;

[0053] (f) After all the boards are installed, a sand cushion layer is laid to set up drainage channels;

[0054] (g) Finally, connect the wires inside the plate to the electrodes, and then start electrolysis.

Claims

1. A smart electrolytic desaturation seepage-proof straight plate, characterized in that, The device includes a housing, a drainage channel, and an electrolysis device. The drainage channel is located on both sides of the housing, and the electrolysis device is located inside the housing. The electrolysis device includes a protective frame, a conductor, a smart device, a seepage-proof layer, and an electrolysis layer. The electrolysis layer is fitted to the inner side of the housing, and the seepage-proof layer is filled inside the electrolysis layer. The protective frame is embedded in the seepage-proof layer, and the smart device and the conductor are installed inside the protective frame. The smart device includes a humidity detector, a switch, and a connector. The connector includes an electrolysis layer connector and a conductor connector, which are symmetrically arranged on both sides of the switch along the radial direction of the switch.

2. The intelligent electrolytic desaturation seepage-proof straight plate according to claim 1, characterized in that, The drainage channel includes a perforated cylinder, which includes a bottom cylinder and a top cylinder. The bottom cylinder and the top cylinder are each perforated with a number of holes along the thickness direction, wherein the holes on the bottom cylinder and the holes on the top cylinder are staggered.

3. The intelligent electrolytic desaturation seepage-proof straight plate according to claim 1, characterized in that, The protective frame includes a rigid frame and an insulated heat dissipation frame. The rigid frame contains an intelligent device, and the insulated heat dissipation frame contains a conductor.

4. The intelligent electrolytic desaturation seepage-proof straight plate according to claim 1, characterized in that, The electrolytic layer comprises multiple electrolytic units, each of which includes a negative electrolytic unit and a positive electrolytic unit.

5. The intelligent electrolytic desaturation seepage-proof straight plate according to claim 1, characterized in that, The electrolytic layer connectors are embedded in the rigid frame and in contact with the electrolytic layer. One electrolytic layer connector is in contact with the negative electrolytic unit of the electrolytic layer, and the other electrolytic layer connector is in contact with the positive electrolytic unit of the electrolytic layer.

6. The intelligent electrolytic desaturation seepage-proof straight plate according to claim 1, characterized in that, The conductor connector includes a fixed part and a rotating part, a reset device is connected to the rotating part, and a wire is connected between the fixed part and the rotating part.

7. The intelligent electrolytic desaturation seepage-proof straight plate according to claim 6, characterized in that, The rotating part is fixed to the outer side of the switch, and the fixed part is embedded in the insulating heat sink frame. The fixed parts on both sides of the switch are in contact with the positive and negative poles of the conductor, respectively.

8. The intelligent electrolytic desaturation seepage-proof straight plate according to claim 6, characterized in that, In the conductor connector, one conductor connector on the side of the electrolysis layer connector that contacts the negative electrolysis unit is in contact with the negative conductor electrode, and the other conductor connector is in contact with the positive conductor electrode.

9. A construction method for an intelligent electrolytic desaturation seepage-proof straight slab as described in any one of claims 1 to 8, characterized in that, Includes the following steps: (a) Pre-design the number and distribution of intelligent electrolytic desaturation and seepage prevention straight plates that need to be installed; (b) Lift the straight plate and suspend it at the predetermined position, align the tip of the plate with the preset position, insert it into the soil, and control the position; (c) Correct and perform static pressure construction to drive the straight plate into the soil to the designed height; (d) After all the boards are installed, set up drainage channels; (e) Connect the wires inside the plate to the electrodes and begin electrolysis.

Citation Information

Patent Citations

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