Foundation bottom plate protection system and method in strong corrosion geological environment

Abstract

A kind of foundation bottom plate protection system and method in strong corrosion geological environment, system includes foundation bottom plate, deep well cylinder, main pipeline, branch pipeline, pumping device, the foundation bottom plate is fixed on foundation by anti-floating anchor rod, the main pipeline is arranged in the foundation, the main pipeline both sides are evenly distributed with several branch pipelines, the branch pipeline top end is evenly distributed with water-permeable hole, one end of the main pipeline is closed, the other end is connected with deep well cylinder, the deep well cylinder is embedded in the soil of the structure to be built side, the top end of deep well cylinder is exposed to ground, the pumping device is connected with deep well cylinder, the deep well cylinder is equipped with the treatment mechanism for corrosive groundwater;Method includes forward treatment mode and reverse treatment mode.The application can improve the corrosion and waterproof effect by improving the foundation bottom plate structure, fundamentally avoid the erosion of building structure by high chloride salt and sulfate in geology.

Description

Technical Field

[0001] This invention relates to the field of corrosion and waterproofing technology in building engineering, specifically to a foundation slab protection system and method under highly corrosive geological environments. Background Technology

[0002] In highly corrosive geological environments, the foundation slab, when exposed to groundwater, can suffer damage such as concrete cracking and spalling, and steel reinforcement corrosion, directly impacting the overall structural safety. Research indicates that the main chemical components causing corrosion of the foundation slab are chlorides and sulfates. Existing anti-corrosion methods primarily focus on increasing the density of the concrete to prevent crack formation, applying anti-corrosion treatment to the steel reinforcement, and enhancing waterproofing. However, these methods cannot fundamentally solve the problem of foundation slab corrosion in building structures. Summary of the Invention

[0003] This invention provides a foundation slab protection system and method for highly corrosive geological environments, aiming to fundamentally and gradually solve the problem of corrosion of the foundation slab of building structures.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] A foundation slab protection system for highly corrosive geological environments includes a foundation slab, a deep well casing, a main pipeline, branch pipelines, and a pumping device. The foundation slab is fixed to the ground by anti-buoyancy anchors. The main pipeline is installed within the ground, and several branch pipelines are evenly distributed on both sides of the main pipeline. Water-permeable holes are evenly distributed at the top of the branch pipelines. One end of the main pipeline is closed, and the other end is connected to the deep well casing. The deep well casing is pre-buried in the soil on one side of the structure to be built, with its top exposed above the ground. The pumping device is connected to the deep well casing, and the deep well casing is equipped with a treatment mechanism for corrosive groundwater.

[0006] Preferably, the branch pipes are evenly distributed in the soil of the foundation below the foundation slab and are used to collect groundwater in the soil below the foundation slab.

[0007] Preferably, a first filter screen is provided at the water permeable hole, and a second filter screen is provided at the connection between the main pipe and the deep well body.

[0008] Preferably, the deep well body is provided with a well cover, and a vertical shaft runs through the well cover. The two ends of the vertical shaft are rotatably connected to the bottom of the deep well body and the well cover, respectively. A drive motor is fixedly provided at the top of the well cover, and the output shaft of the drive motor is fixedly connected to the top of the vertical shaft. The vertical shaft is provided with stirring blades on the outer wall of the deep well body.

[0009] Preferably, the pumping device includes an inlet pipe, a first self-priming pump, and a collection container. One end of the inlet pipe is connected to the lower part of the deep well body, and the other end is connected to the input end of the first self-priming pump. The output end of the first self-priming pump is connected to the collection container, which is used to store the treated groundwater.

[0010] Preferably, the foundation slab includes a reinforced concrete layer, an anti-corrosion layer located below the reinforced concrete layer, and a waterproof layer located below the anti-corrosion layer.

[0011] Preferably, the treatment mechanism includes a treatment agent delivery pipe penetrating the well cover, a water quality detector located at the bottom of the inner wall of the deep well cylinder, a first liquid level sensor located on the inner wall of the deep well cylinder, and a control mechanism located above the ground surface. The water quality detector and the first liquid level sensor are respectively connected to the control mechanism via wires, and the control mechanism is electrically connected to the first self-priming pump via wires.

[0012] Preferably, it also includes a second self-priming pump, the input end of which is connected to the collection container, and the output end of which is connected to the end of the main pipeline through a connecting pipe. A first solenoid valve is provided on the main pipeline near the deep well body through the connecting pipe, and a second solenoid valve is provided on the connecting pipe. A second liquid level sensor is provided in the middle of the inner wall of the main pipeline. The second liquid level sensor is connected to the control mechanism via a wire. The control mechanism is electrically connected to the second self-priming pump, the first solenoid valve, and the second solenoid valve via a wire. Several drip irrigation pipes are evenly distributed at the bottom of the branch pipeline.

[0013] A method for corrosion protection of a foundation slab in a highly corrosive geological environment includes a forward treatment mode and a reverse treatment mode. The forward treatment mode includes the following steps:

[0014] (1A) During the rainy season or when groundwater is abundant, the first solenoid valve is opened, and groundwater enters the branch pipe through the permeable hole and converges into the deep well body through the main pipe; the control mechanism obtains the concentration of chloride and sulfate in the groundwater in the deep well body according to the water quality tester, and adds alkaline solution through the chemical delivery pipe to reduce the corrosivity of the groundwater to the qualified standard.

[0015] (2A) When the liquid level in the deep well reaches the detection height of the first liquid level sensor, the first self-priming pump is turned on to pump the groundwater in the deep well into the collection container. The concentration of chloride and sulfate in the groundwater in the collection container determines whether to further treat it with alkaline solution and ensures that the groundwater in the collection container meets the qualified standards.

[0016] The reverse governance model includes the following steps:

[0017] (1B) In the dry season or when groundwater is insufficient, close the first solenoid valve and open the second solenoid valve. Use the second self-priming pump to pump the treated groundwater in the collection container into the main pipeline. Use several drip irrigation pipes at the bottom of the branch pipeline to drip irrigate the foundation soil. Use drip irrigation to dissolve chloride and sulfate in the soil and transport them to deeper underground layers.

[0018] (2B) When the second liquid level sensor detects water level information, stop the second self-priming pump or reduce the pumping speed of the second self-priming pump; when the water level in the main pipeline continuously exceeds the detection height of the second liquid level sensor for a set time, open the first solenoid valve and start the positive treatment mode.

[0019] The beneficial effects of the foundation slab protection system and method in a highly corrosive geological environment of the present invention are as follows:

[0020] This invention improves the corrosion and waterproofing effect by modifying the foundation slab structure. Through both positive and negative remediation modes, it mitigates the highly corrosive environment of the foundation slab, and long-term use improves the foundation soil, thus fundamentally preventing the building structure from being eroded by excessive chloride and sulfate levels in the geology. Furthermore, based on the state of groundwater, this invention flexibly applies both positive and negative remediation modes, saving energy and improving environmental protection. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure of the present invention in use;

[0022] Figure 2 A top view showing the structural relationship between the main pipeline and branch pipelines of this invention;

[0023] 1. Foundation; 2. Foundation slab; 2-1. Reinforced concrete layer; 2-2. Anti-corrosion layer; 2-3. Waterproof layer; 3. Deep well shell; 4. Main pipeline; 5. Branch pipeline; 6. Agitator blades; 7. First liquid level sensor; 8. Inlet pipe; 9. First self-priming pump; 10. Treatment agent delivery pipe; 11. Drive motor; 12. Second filter screen; 13. Water permeable hole; 14. Collection container; 15. Second self-priming pump; 16. Second solenoid valve; 17. First solenoid valve; 18. Drip irrigation pipe; 19. Water quality tester. Detailed Implementation

[0024] The following description provides a detailed explanation of the embodiments of the present invention in a step-by-step manner. This description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0025] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limiting this invention.

[0026] Example 1:

[0027] A foundation slab protection system for highly corrosive geological environments, such as Figure 1 , 2 As shown, the structure includes a foundation slab 2, a deep well cylinder 3, a main pipeline 4, branch pipelines 5, and a pumping device. The foundation slab 2 is fixed to the foundation 1 by anti-buoyancy anchors. The main pipeline 4 is installed in the foundation 1. Several branch pipelines 5 are evenly distributed on both sides of the main pipeline 4. Water permeable holes 13 are evenly distributed at the top of the branch pipelines 5. One end of the main pipeline 4 is closed, and the other end is connected to the deep well cylinder 3. The deep well cylinder 3 is pre-buried in the soil on one side of the structure to be built, and the top of the deep well cylinder 3 is exposed above the ground. The pumping device is connected to the deep well cylinder 3. The deep well cylinder 3 is equipped with a treatment mechanism for corrosive groundwater.

[0028] like Figure 1 , 2 As shown, the branch pipes 5 are evenly distributed in the soil of the foundation 1 below the foundation slab 2, and are used to collect groundwater in the soil below the foundation slab 2.

[0029] like Figure 1 , 2 As shown, a first filter screen (not shown in the figure) is provided at the water permeable hole, and a second filter screen 12 is provided at the connection between the main pipe 4 and the deep well cylinder 3.

[0030] like Figure 1 , 2 As shown, the deep well cylinder 3 is provided with a well cover, and a vertical shaft runs through the well cover. The two ends of the vertical shaft are rotatably connected to the bottom of the deep well cylinder and the well cover, respectively. A drive motor 11 is fixedly provided at the top of the well cover. The output shaft of the drive motor 11 is fixedly connected to the top of the vertical shaft. The vertical shaft is provided with stirring blades 6 on the outer wall of the deep well cylinder.

[0031] like Figure 1 , 2As shown, the pumping device includes an inlet pipe 8, a first self-priming pump 9, and a collection container 14. One end of the inlet pipe 8 is connected to the lower part of the deep well body 3, and the other end is connected to the input end of the first self-priming pump 9. The output end of the first self-priming pump 9 is connected to the collection container 14, which is used to store the treated groundwater.

[0032] like Figure 1 As shown, the foundation slab 2 includes a reinforced concrete layer 2-1, an anti-corrosion layer 2-2 located below the reinforced concrete layer, and a waterproof layer 2-3 located below the anti-corrosion layer.

[0033] like Figure 1 As shown, the treatment mechanism includes a treatment agent delivery pipe 10 that penetrates the well cover, a water quality detector 19 located at the bottom of the inner wall of the deep well body 3, a first liquid level sensor 7 located on the wall of the deep well body, and a control mechanism located above the ground surface (not shown in the figure). The water quality detector 19 and the first liquid level sensor 7 are respectively connected to the control mechanism via wires, and the control mechanism is electrically connected to the first self-priming pump 9 via wires.

[0034] Example 2:

[0035] This embodiment further discloses, based on embodiment 1, the following:

[0036] like Figure 1 , 2 As shown, it also includes a second self-priming pump 15. The input end of the second self-priming pump 15 is connected to the collection container 14, and the output end is connected to the end of the main pipe 4 through a connecting pipe. A first solenoid valve 17 is provided on the main pipe 4 near the side of the deep well cylinder 3, and a second solenoid valve 16 is provided on the connecting pipe. A second liquid level sensor (not shown in the figure, used to detect the amount of groundwater in the main pipe) is provided in the middle of the inner wall of the main pipe 4. The second liquid level sensor is connected to the control mechanism via a wire. The control mechanism is electrically connected to the second self-priming pump, the first solenoid valve, and the second solenoid valve via a wire. Several drip irrigation pipes 18 are evenly distributed at the bottom of the branch pipe.

[0037] Example 3:

[0038] This embodiment further discloses, based on embodiment 2, the following:

[0039] A method for corrosion protection of foundation slabs in highly corrosive geological environments, such as... Figure 1 , 2 As shown, this includes a positive governance model and a negative governance model. The positive governance model includes the following steps:

[0040] (1A) During the rainy season or when groundwater is abundant, the first solenoid valve 17 is opened, and groundwater enters the branch pipe 5 through the permeable hole and converges into the deep well body 3 through the main pipe 4; the control mechanism obtains the concentration of chloride and sulfate in the groundwater in the deep well body according to the water quality detector 19, and adds alkaline solution (sodium hydroxide) through the agent delivery pipe 10 to reduce the corrosivity of the groundwater to the qualified standard.

[0041] (2A) When the liquid level in the deep well cylinder 3 reaches the detection height of the first liquid level sensor 7, the first self-priming pump 9 is turned on to pump the groundwater in the deep well cylinder 3 into the collection container 14. The concentration of chloride and sulfate in the groundwater in the collection container 14 determines whether to further treat it with alkaline solution and ensures that the groundwater in the collection container meets the qualified standards.

[0042] The reverse governance model includes the following steps:

[0043] (1B) In the dry season or when groundwater is insufficient, close the first solenoid valve and open the second solenoid valve. The treated groundwater in the collection container is pumped to the main pipeline 4 by the second self-priming pump 15. The groundwater is dripped into the soil of the foundation 1 through several drip irrigation pipes 18 at the bottom of the branch pipeline 5. The chloride and sulfate in the soil are dissolved by drip irrigation and transported to deeper underground layers.

[0044] (2B) When the second liquid level sensor detects water level information, the second self-priming pump 15 is stopped or the pumping speed of the second self-priming pump 15 is reduced; when the water level in the main pipeline continues to exceed the detection height of the second liquid level sensor for a set time, the first solenoid valve is opened to start the positive treatment mode.

Claims

1. A foundation slab protection system in a highly corrosive geological environment, characterized by: The utility model relates to a kind of corrosion control method of foundation bottom plate protection system in strong corrosion geologic environment, including foundation bottom plate, deep well cylinder, main pipeline, branch pipeline, pumping device, control mechanism, the foundation bottom plate is fixed on foundation by anti-floating anchor, the main pipeline is arranged in the foundation, the main pipeline both sides are evenly distributed with several branch pipelines, the branch pipeline top is evenly distributed with water-permeable hole, the branch pipeline bottom is evenly distributed with several drip irrigation pipes;The one end of the main pipeline is closed, the other end is connected with deep well cylinder, the deep well cylinder is embedded in the soil of structure side to be built, the top of deep well cylinder is exposed ground, the pumping device is connected with deep well cylinder, the deep well cylinder is equipped with the treatment mechanism for corrosive groundwater; The pumping device includes a water inlet pipe, a first self-priming pump, and a collection container. One end of the water inlet pipe is in communication with the lower part of the deep well cylinder, and the other end is connected with the input end of the first self-priming pump. The output end of the first self-priming pump is connected with the collection container. The collection container is used to store the treated groundwater. The treatment mechanism includes a treatment agent delivery pipe that penetrates the well cover, a water quality detector arranged on the inner wall of the deep well cylinder, a first liquid level sensor arranged on the cylinder wall of the deep well cylinder, and a control mechanism arranged above the ground. The water quality detector and the first liquid level sensor are respectively connected with the control mechanism by wires. The control mechanism is electrically connected with the first self-priming pump by wires. It also includes a second self-priming pump. The input end of the second self-priming pump is connected with the collection container. The output end is connected with the end of the main pipeline through a connecting pipe. The first electromagnetic valve is arranged on the main pipeline near the deep well cylinder side of the connecting pipe. The second electromagnetic valve is arranged on the connecting pipe. The second liquid level sensor is arranged on the inner side wall of the main pipeline. The second liquid level sensor is connected with the control mechanism by wires. The control mechanism is electrically connected with the second self-priming pump, the first electromagnetic valve, and the second electromagnetic valve by wires.

2. A foundation slab protection system in a highly corrosive geological environment according to claim 1, characterized in that: The branch pipelines are evenly distributed in the soil of the foundation below the foundation bottom plate and are used to collect the groundwater in the soil below the foundation bottom plate.

3. A foundation slab protection system in a highly corrosive geological environment according to claim 2, characterized in that: The water-permeable hole is provided with a first filter screen. The connection between the main pipeline and the deep well cylinder is provided with a second filter screen.

4. A foundation slab protection system in a highly corrosive geological environment according to claim 3, characterized in that: The deep well cylinder is provided with a well cover. A vertical shaft penetrates the well cover. The two ends of the vertical shaft are respectively rotatably connected with the bottom of the deep well cylinder and the cylinder cover. A driving motor is fixedly arranged on the top end of the well cover. The output shaft of the driving motor is fixedly connected with the top end of the vertical shaft. The vertical shaft is provided with stirring blades on the outer wall in the deep well cylinder.

5. A foundation slab protection system in a highly corrosive geological environment according to claim 4, characterized in that: The foundation bottom plate includes a reinforced concrete layer, a corrosion prevention layer below the reinforced concrete layer, and a waterproof layer below the corrosion prevention layer.

6. The corrosion control method of the foundation bottom plate protection system in strong corrosion geologic environment according to claim 5, comprising a forward treatment mode and a reverse treatment mode, wherein the forward treatment mode comprises the following steps: (1A) In the rainy season or the period of abundant groundwater, open the first electromagnetic valve, groundwater enters the branch pipe through the permeable hole, and converges in the deep well cylinder through the main pipe; the control mechanism obtains the concentration of chloride and sulfate in the groundwater in the deep well cylinder according to the water quality detector, and adds alkali through the reagent delivery pipe, so that the corrosion of the groundwater is reduced to the qualified standard; (2A) When the liquid level in the deep well cylinder reaches the detection height of the first liquid level sensor, open the first self-priming pump to pump the groundwater in the deep well cylinder into the collection container, and decide whether to further treat by alkali according to the concentration of chloride and sulfate in the groundwater in the collection container, and ensure that the groundwater in the collection container reaches the qualified standard; The reverse treatment mode comprises the following steps: (1B) In the dry season or when the groundwater is insufficient, close the first electromagnetic valve and open the second electromagnetic valve, pump the treated groundwater in the collection container into the main pipe through the second self-priming pump, drip irrigation into the foundation soil through the branch pipe bottom of a plurality of drip irrigation pipes, dissolve the chloride and sulfate in the soil, and transport to the deeper underground; (2B) When the second liquid level sensor detects the water level information, stop the second self-priming pump or reduce the pumping speed of the second self-priming pump; when the water level in the main pipe continuously exceeds the detection height of the second liquid level sensor for a set time, open the first electromagnetic valve and start the forward treatment mode.

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