Intelligent anti-seepage plate and intelligent anti-seepage wall capable of long-term monitoring

Abstract

The present invention relates to the technical field of underground structural walls of water conservancy projects, and in particular to an intelligent anti-seepage plate and an intelligent anti-seepage wall that can be monitored over a long period of time. The intelligent anti-seepage plate includes a main body, which includes a plate-shaped main board and wing plates arranged on both sides of the main board, the wing plates are provided with connecting parts, and a plurality of sensors connected to a transceiver at the upper ends are distributed on the outer surface or inside of the main body, and the sensors include optical fibers, which extend downward along the length direction of the main body and are used to detect changes in the main body and its surrounding environment. The present invention implants optical fibers in the body of the anti-seepage plate, collects stress changes of the anti-seepage plate or thermal radiation effects and vibration fluctuations in the water around the anti-seepage plate through the optical fibers, determines whether the environment around the anti-seepage plate has changed, and infers whether there is a leakage point. The optical fiber is integrated into the anti-seepage plate to form a permanent anti-seepage monitoring facility with the anti-seepage plate, which can carry out long-term intelligent monitoring of hydraulic structures such as dams to ensure that potential leakage hazards are discovered and dealt with in a timely manner.

Description

Technical Field

[0001] The present invention relates to the technical field of underground structural walls of water conservancy projects, and in particular to an intelligent anti-seepage plate and an intelligent anti-seepage wall capable of long-term monitoring. Background Art

[0002] During frequent extreme weather events, continuous heavy rainfall and prolonged high water levels pose a serious threat to levees. Improving or improving existing anti-seepage systems on mainstream levees in key river basins is a pressing issue. This can address potential safety hazards caused by leakage in earthen levees operating at high water levels, minimize the risks of pipe bursts and dam failures caused by leakage, and ensure the stability of key levees and the safety of critical infrastructure.

[0003] To prevent seepage in dams, plastic-steel sheet piles are typically driven into the water side of the dam to isolate the river from the dam. Publication No. TW201329316A discloses a (metal) clamping device tailored to the shape of the plastic-steel sheet piles. This clamping device is then driven into the ground using a pile driver's hammer. The clamping device is then removed separately, leaving the plastic-steel sheet piles in the ground. This method provides permanent isolation, such as retaining walls, water retaining walls, and breakwaters, for newly constructed river channels and those with high water levels. However, its installation and construction on existing dams is more difficult, and it is difficult to prevent damage to the dams from prolonged high water levels.

[0004] Plastic-steel sheet pile revetments are also commonly combined with other revetment structures. For example, Chinese patent publication number CN118932929A, entitled "A combined ecological revetment structure of solidified soil grid stems and its construction method," discloses a combined revetment formed by using pine piles as the main support structure, the water-blocking function of plastic-steel sheet piles, and solidified soil grid stems.

[0005] Flood-control plastic-steel sheet piles typically enhance their anti-seepage properties by increasing their thickness and strength. For example, the flood-control ecological sheet piles disclosed in Chinese utility model patent CN217923505U feature a circular arc-shaped exposed surface and are equipped with first and second protrusions to enhance structural strength. Sealing strips are also added to the C-shaped and T-shaped locks for a better seal. While this flood-control sheet has a strong structure suitable for flood control, its overall thickness makes it difficult to drive into the ground, and its lack of long-term monitoring capabilities makes it difficult to monitor the embankment's status in real time.

[0006] Currently, directly driving plastic-steel sheet piles into the ground with a pile driver can easily damage the piles and make them difficult to adapt to complex and changing geological conditions. Over time, they can also shift, compromising their anti-seepage effectiveness. Furthermore, over 90% of plastic-steel sheet piles are used in concealed construction projects, leaving no way to objectively monitor their condition within them. Excavation inspections can severely damage existing projects, making monitoring and maintenance inconvenient. Summary of the Invention

[0007] In response to one or more problems existing in existing plastic-steel sheet piles and plastic-steel sheet pile walls, the present invention provides an intelligent anti-seepage plate that can be monitored over a long period of time. By setting detection points on the anti-seepage plate, the status of the anti-seepage plate can be detected, and the intelligent anti-seepage wall can monitor the water flow of the plastic-steel sheet piles and perform timely maintenance to reduce major dangerous situations such as pipe bursts and dam breaches caused by embankment leakage.

[0008] The purpose of the present invention is achieved through the following technical solutions:

[0009] The present invention provides an intelligent anti-seepage plate capable of long-term monitoring, comprising a main body, the main body comprising a plate-shaped main board and wing plates arranged on both sides of the main board, the wing plates being provided with connecting ends, comprising sensors, the sensors comprising optical fibers and a transceiver connected to the upper ends of the optical fibers, multiple bundles of optical fibers distributed on the outer surface and / or inside of the main body, the optical fibers extending downward along the length direction of the main body, and being used to detect changes in the main body and / or its surrounding environment.

[0010] Compared to existing technologies, this invention embeds optical fibers within the impermeable plate. These fibers collect information about stress changes in the plate, as well as thermal radiation and vibration fluctuations in the water surrounding the plate. This information can be used to determine environmental changes around the plate and infer the presence of leaks. The optical fibers are integrated into the plate, forming a permanent, intelligent monitoring system. This allows for long-term, intelligent monitoring of embankment structures, ensuring timely detection and resolution of potential leaks.

[0011] The transceiver is connected to the optical fiber and can send and receive signals, and then sends the sensor data to the monitoring center or computing center through a wired or wireless transmission module. The present invention does not limit or improve the data transmission of the transceiver, and allows the appropriate transmission method to be selected according to actual needs.

[0012] Preferably, the optical fiber is embedded in the body and formed integrally with the body. During the extrusion manufacturing process of the anti-seepage plate, the optical fiber is implanted to form an integral structure, and the optical fiber is tightly combined with the anti-seepage plate material to ensure that it is not damaged during long-term use.

[0013] Preferably, the outer layer of the optical fiber is covered with a heat-insulating layer, a reinforcement layer, and a protective layer. The protection of the aramid fiber, the Teflon tube heat-insulating layer, and the reinforcement layer ensures that the optical fiber is not damaged by factors such as temperature and stress when it is implanted.

[0014] Preferably, the optical fiber is bonded to the surface of the body with an adhesive. This adhesive allows for direct retrofitting of existing impermeable panels or plastic-steel sheet piles, as well as rapid intelligentization of newly manufactured impermeable panels, ensuring that the optical fiber is unaffected by temperature and stress. The adhesive should be made of a water-resistant and age-resistant material.

[0015] Preferably, a steel wire layer is used for protection, and a polymer material wrapping is added on the outer layer.

[0016] Preferably, an anchor rod extending along the length direction of the main board is provided on the surface of the main board, and the anchor rod includes a main rod and a connecting portion, and the connecting portion connects the main rod and the main board.

[0017] The anchor rods of the present invention can strengthen the main structural strength and enhance the stability of the anti-seepage plate, allowing the plate to be used independently without the support of H-shaped steel, wooden piles, etc., thereby reducing the cost of use and construction process. The anchor rods can penetrate deep into the soil or underground cement continuous wall, tightly bonding with the surrounding soil, effectively preventing the anti-seepage plate from shifting or deforming, and reducing the separation of the two interfaces when the stratum is disturbed, thereby enhancing the overall anti-seepage performance and stability.

[0018] Preferably, the cross-sectional width of the main rod is greater than the cross-sectional width of the connecting portion, or the diameter of the main rod is greater than twice the width of the connecting portion. The large cross-sectional area of ​​the main rod can form an effective anchoring effect, prevent the surrounding soil from being lost, improve the anti-seepage effect, and ensure that the anti-seepage plate is more stable under complex geological conditions.

[0019] Preferably, an optical fiber is installed between the main rod and the main plate, near the connection. If leakage occurs around the anti-seepage plate, it will cause obvious soil unevenness and concentrated water seepage on both sides of the anchor rod. The combination of the anchor rod and the optical fiber makes it easier for the optical fiber sensor to capture the soil and water changes around the anchor rod, forming an effective monitoring system for dam leakage.

[0020] Preferably, the connection portion includes at least one mounting groove for fixing the optical fiber, and the mounting groove is adapted to the size of the optical fiber. Anchor rods around the optical fiber connection can effectively protect the optical fiber.

[0021] Preferably, the anchor rods are staggered on either side of the main plate, with the distance between the top of the anchor rod and the main plate surface greater than the thickness of the main plate. This arrangement can at least triple the main plate's vertical bending resistance while reducing overall resistance, facilitating the insertion of the impermeable plate into the ground. Furthermore, the main plate should be kept moderately thick, ensuring a certain degree of lateral flexibility and deformation to adapt to complex geological environments. Furthermore, the fiber optic monitoring device must be tightly integrated with the soil layer to avoid gaps, thereby preventing misjudgments due to separation.

[0022] Preferably, the connecting end includes a first connecting plate and a second connecting plate, the first connecting plate includes a first end plate and a convex head, the second connecting plate includes a second end plate and a concave head, and an optical fiber is arranged on the first end plate or the second end plate, or an optical fiber is arranged on the convex head or the concave head.

[0023] Although the male and female connectors are designed to fit tightly together, we still need to be aware of the risk of unhooking and potential leak points. Therefore, placing optical fibers at these critical joints can ensure effective monitoring of vulnerable areas.

[0024] The present invention also provides an intelligent anti-seepage wall, including an intelligent anti-seepage plate that can be monitored for a long time, and a cement wall. The intelligent anti-seepage plates are sequentially connected and arranged inside the cement wall, and the sensor can monitor the pressure, impact or leakage changes on the cement wall.

[0025] The concrete wall formed on the dam facilitates the insertion of the anti-seepage plate without damaging the optical fiber. This combination makes intelligent anti-seepage monitoring of the dam a reality. The solid structure of the concrete wall not only enhances the stability of the anti-seepage plate, but also significantly strengthens the anti-seepage effect, ensuring its reliability and durability in long-term use.

[0026] Preferably, the cement wall is 300mm to 450mm thick, and the intelligent anti-seepage plate is 100mm to 150mm thick, with the intelligent anti-seepage plate positioned in the middle of the cement wall. The cement wall is 2-3 times thicker than the anti-seepage plate, achieving a moderate thickness that minimizes impaired anti-seepage effectiveness while preventing damage to the existing dam structure during construction.

[0027] Preferably, when the main board is arranged close to the anti-seepage side, the thickness of the cement wall is 350 mm; when the main board is alternately arranged on the anti-seepage side and away from the anti-seepage side, the thickness of the cement wall is 400 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the anti-seepage plate structure from a top view;

[0029] Figure 2 Schematic diagram of the main structure of the anti-seepage plate;

[0030] Figure 3 This is a schematic diagram of the narrow wall structure of the intelligent anti-seepage wall;

[0031] Figure 4 This is a schematic diagram of the wide wall structure of the intelligent anti-seepage wall;

[0032] Figure 5 This is a cross-sectional structural diagram of the intelligent anti-seepage wall on the dam;

[0033] Figure 6 This is a bird's-eye view of the structure of the intelligent anti-seepage wall on the dam.

[0034] In the figure: 1-main body, 2-main board, 3-wing board, 4-first connecting board, 41-first end board, 42-convex head, 5-second connecting board, 51-second end board, 52-concave head, 6-anchor rod, 61-main rod, 62-connecting part, 71-optical fiber, 72-transceiver, 10-cement wall, 20-river surface, 30-dam. DETAILED DESCRIPTION

[0035] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, features specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise explicitly specified.

[0038] In the present invention, unless otherwise specified or limited, terms such as "mounted," "connected," "connected," and "fixed" should be understood broadly to encompass fixed connections, detachable connections, and integral connections. These terms may refer to direct connections, indirect connections through an intermediary, or even internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances. Example

[0039] like Figure 1 - Figure 2 As shown, the present invention provides an intelligent anti-seepage plate capable of long-term monitoring, comprising a body 1, the body 1 comprising a plate-shaped main board 2 and wing plates 3 arranged on both sides of the main board 2. One end of the wing plate 3 is connected to the main board 2 and extends outwards, and a connecting end portion is provided at the other end of each wing plate 3, and the connecting end portion is respectively provided with a first connecting plate 4 and a second connecting plate 5. Figure 2 The height of the main structure of the anti-seepage plate is not fully shown. The height of the anti-seepage plate can reach 15m to 20m, and the height is determined according to project requirements.

[0040] The first connecting plate 4 includes a first end plate 41 and a convex head 42, and the second connecting plate 5 includes a second end plate 51 and a concave head 52. The convex head 42 and the concave head 52 engage with each other to achieve sequential connection and tight fixation of the anti-seepage plates.

[0041] An anchor rod 6 is provided on the main plate 2 and comprises a main rod 61 and a connecting portion 62. The main rod 61 is generally cylindrical and extends parallel to the length of the main plate 2. The connecting portion 62 connects the main rod 61 to the main plate 2 and is narrower than the diameter of the main rod 61, ensuring that the anchor rod 6 is securely embedded therein.

[0042] Sensors are provided inside the body 1 or on one side or both sides. The sensors are used to monitor the anti-seepage status in real time, transmit data to a central processing system, and analyze leakage risks.

[0043] The sensor is a monitoring optical fiber 71, which is linear. The optical fiber 71 is arranged on the surface of the main board 2 or / and the wing plate 3 through a preset path to ensure full coverage of the monitoring area. In some embodiments, the optical fiber 71 is embedded in the inside of the main body 1. The embedding method of the optical fiber 71 is flexible and diverse. It can be arranged along the preset groove inside the main board 2 or the wing plate 3, or it can be directly buried during the molding process of the main board 2 or the wing plate 3. This ensures the close combination of the optical fiber 71 and the main body 1, thereby improving the accuracy and stability of the monitoring. The monitoring optical fiber selected by the sensor is a micro-fixed-point dense distributed strain sensing optical cable. In this embodiment, by burying the optical fiber, that is, co-extruded and buried in the anti-seepage plate, the dense strain sensing optical fiber is buried, which can monitor the stress condition of the plate. Of course, the optical fiber can also be pasted on the outer surface of the anti-seepage plate. The optical fiber arrangement has high sensitivity and durability, ensuring long-term and stable data transmission.

[0044] The anchor rods 6 are evenly distributed on the surface of the main board 2 with uniform spacing to ensure overall force balance. The anchor rods 6 are arranged on the surfaces of both sides of the main board 2 at the same time, and the anchor rods 6 on both sides are staggered to form a cross-support structure to enhance the overall tensile strength. The connection between the anchor rods 6 and the main board 2 is achieved by one-piece extrusion molding and other one-piece molding technologies. This design effectively enhances the overall stability of the structure and significantly extends the durability of the anti-seepage system. With its precise monitoring capabilities and data analysis, the sensor enables the system to quickly identify and warn of potential leakage threats, ensuring long-term safe and stable operation. In addition, the wing panels 3 of the main body 1 are made of high-strength composite materials to enhance deformation resistance, while requiring a certain degree of deformation flexibility, so that the wing panels 3 can bend moderately when subjected to external forces.

[0045] like Figure 3 - Figure 4 As shown, the intelligent anti-seepage plate has a wall thickness of 9mm, an overall width of 650mm, a length of 15m (adjustable according to the requirements of the project), and a main board 2 of 402mm long. The width of the wing plate 3 projected onto the cross section perpendicular to the main board 2 is 120mm, and the length projected onto the surface of the main board 2 is 34mm. The wing plate 3 forms an angle A with the main board 2, tanA=120 / 34. The width of the connecting end is 90mm, parallel to the main board 2. The distance from the end of the anchor rod 6 to the side of the main board 2 is 11mm, the diameter of the main rod 61 is 9mm, and the width of the connecting part 62 is 4mm. The anchor rod 6 ensures that it can penetrate into the soil layer to form a firm support. The spacing between the anchor rods 6 is designed to be 80mm-90mm, which can be slightly adjusted to ensure that the soil is evenly stressed and tightly connected to the cement continuous wall.

[0046] The intelligent anti-seepage plate itself serves as a structural support, eliminating the need for additional H-shaped steel or foundation piles. The addition of anchor rods enhances structural strength and improves the bond between the plate and the soil, facilitating fiber-optic monitoring of environmental changes. The smaller design of the wing plates 3 reduces the overall thickness of the anti-seepage wall. The intelligent anti-seepage plate's overall design balances rigidity and flexibility, adapting to complex geological conditions and ensuring long-term stable operation.

[0047] The preparation process of the intelligent anti-seepage board is:

[0048] The raw materials are put into the pre-mixing bin according to the material ratio and mixed evenly, and then sent to the powder bin through the elevator. After the special glass fiber pellets and powder are mixed for the second time, the mixture is transported to the production line through the pipe chain system. The feeding speed is controlled by the die head to put the raw materials into the extruder.

[0049] The extruder raises the temperature to the production temperature before feeding. After the mixture enters the extruder, it is heated and softened in the extruder to fuse the reinforced glass fiber with the raw materials. The reinforced glass fiber has a dedicated channel and is located in the area with the greatest tensile and bending stress in the anti-seepage plate. It is formed in a concentrated area and fed into the extrusion die by the rotation of the screw.

[0050] The extrusion die creates a channel to co-extrude the embedded optical fiber into the sheet pile as the plastic-steel sheet is extruded. After forming, the sheet pile is fed into a shaping die where cold water dissipates heat, cooling the plastic-steel sheet and setting it. The outer layer of the optical fiber requires an insulation layer and reinforcement layer to protect the internal fiber bundle. The fiber is then co-extruded into the sheet pile through traction, forming a single piece. The outer layer of the optical fiber is wrapped with insulation and reinforcement layers, such as aramid fiber, Teflon, and a metal sleeve, to enhance strength and thermal insulation.

[0051] By orderly arranging the glass fibers and utilizing their excellent tensile properties in the longitudinal direction, the tensile capacity of the anti-seepage board is significantly improved; by increasing the proportion of glass fibers, the tensile strength can be increased by 200%.

[0052] Within the stratum, the vertical body of the anti-seepage plate is affected by forces such as soil pressure and water pressure. When the anti-seepage plate deforms due to the force, the internal optical fiber transmits the signal to the transceiver 72 at the upper end. The transceiver 72 is connected to the optical fiber and can send and receive signals. By analyzing these signals, a force distribution map can be constructed and the changes in water level can be monitored to display the force comparison. When the stress suddenly changes, the system can issue a warning report. For example, distributed optical fiber temperature sensing technology has been used to monitor the leakage of face rockfill dams. Through long-term monitoring and data analysis, the leakage point can be accurately located. Example

[0053] The second embodiment of the present invention discloses an intelligent anti-seepage plate capable of long-term monitoring, which differs from the first embodiment in that:

[0054] The sensor's optical fiber 71 is fixed to the surface of the mainboard 2. The optical fiber can be an actively heated, vibration-stabilized composite sensing optical cable. In this embodiment, the optical fiber is an actively heated, vibration-stabilized composite sensing optical cable. The primary installation method is to attach it to the impermeable plate to monitor processes requiring heat radiation and vibration transmission from one side to the other. Alternatively, the optical fiber can be pre-embedded in the plate.

[0055] The optical fiber 71 is fixed between the main boards 2 of the anchor rod 6. Specifically, the sensor is arranged near the connection portion 62 between the main rod 61 and the main board 2. Therefore, the sensor can be fixed on the main board 2 or the connection portion 62, or fixed between the main rod 61 and the connection portion 62, ensuring that the sensor is fully protected while being able to accurately monitor the connection status between the main board 2 and the anchor rod 6 and its surrounding environment, and provide real-time feedback data to improve the stability and reliability of the anti-seepage system. In some embodiments, the connection portion 62 includes at least one mounting groove for fixing the sensor, which is not shown and is adapted to the size of the sensor.

[0056] The intelligent anti-seepage board is designed to install surface monitoring optical fibers. The fibers are deployed across the entire board surface through methods such as anchor rods and secondary bonding. Carbon fiber cloth is soaked in ethyl cyanoacrylate, then covered and secured to the raised anchor rods on the anti-seepage board surface. Other polymer materials can also be used to wrap the optical fibers 71, with an outer layer of steel wire.

[0057] When the anti-seepage plate is embedded in the formation, an optical cable is powered from the upper equipment, generating heat and vibration. The heat radiation and vibration fluctuations in the water are detected, allowing calculation and analysis of possible leaks. While the anti-seepage plate is functioning within the formation, it isolates the soil and groundwater on either side. During the heat and vibration transfer process, the soil and groundwater on either side of the plate form a homogeneous medium. However, if a leak occurs, water flows through the channel in the plate, connecting both sides. The heat and vibration transfer through the water channel is significantly different from the previous state, allowing the leak location to be identified. Example

[0058] This embodiment is an intelligent anti-seepage wall, which includes the intelligent anti-seepage plate capable of long-term monitoring of the first embodiment and the second embodiment.

[0059] The intelligent anti-seepage wall also includes a cement wall 10, which can be an underground continuous wall / cement continuous wall, etc. The cement continuous wall is closely combined with the intelligent anti-seepage board to form a dual intelligent protection system.

[0060] Step 1: After accurately staking out the centerline of the cutoff wall according to the TRD method's equipment weight requirements, a series of reinforcement measures, including laying steel plates, were immediately implemented on the construction site to ensure the site could withstand the weight of the equipment and maintain stability during pile driving. An excavator excavated a working trench parallel to the centerline of the cutoff wall, approximately 0.6 meters wide and over 1.0 meters deep.

[0061] Step 2: Determine the cement content based on the geological survey report and pre-mix the cement slurry; during construction, adjust the cement content according to the distribution of soil layers in each work section.

[0062] Inject excavation fluid into the bottom of the cutting box to pre-cut the soil layer for a certain distance, then withdraw the excavation to the original position, start solidifying the fluid to force it to mix and stir with the in-situ soil to form an equal-thick cement soil underground continuous wall.

[0063] Step 3: Insert high-strength intelligent anti-seepage board.

[0064] After the construction reaches a certain working surface, the anti-seepage plate is inserted. The anti-seepage plate must be inserted vertically into the cement soil with a vertical deviation of no more than 1 / 300, and must be inserted within 3 hours after the mixing wall construction is completed.

[0065] The intelligent anti-seepage board has added multiple anchor rods on the surface. Compared with the smooth surface of existing boards, it is more conducive to combining with soil, concrete, cement soil and other media on both sides.

[0066] The intelligent anti-seepage wall technology forms a 350mm or 400mm thick cement continuous wall, which significantly reduces the wall thickness compared to the traditional cement continuous wall with a thickness of about 1m. Therefore, when it is set on the dam, the impact on the dam structure is more minor.

[0067] After a series of experiments and evaluations, it was found that the cement diaphragm wall with a thickness of 300mm to 450mm and the intelligent anti-seepage plate with a thickness of 90mm to 150mm can effectively achieve the anti-seepage function of the dam, while keeping the impact on the dam structure itself at a low level.

[0068] like Figure 3 , Figure 4As shown, the main board 2 is arranged close to the anti-seepage side, and the thickness of the cement wall 10 is 350 mm; or the main board 2 is alternately arranged close to or away from the anti-seepage side, and the thickness of the cement wall 10 is 400 mm.

[0069] like Figure 5 , Figure 6 As shown, in actual use, the intelligent anti-seepage wall is installed in the middle of the upper surface of the dam 30. The intelligent anti-seepage panel's main body 1, located in the middle of the cement wall 10, prevents leakage within the range of the river 20 water level. The dam itself serves as a stable support for the intelligent anti-seepage wall. In the absence of water seepage, it can maintain structural integrity and effectively prevent the risk of dam collapse.

[0070] Compared to existing technologies, this invention: 1. After the plastic-steel sheet pile forms a wall within the soil, internal stress is generated. Fiber optics within the sheet pile sense these compressive and tensile forces, which are detected by an upper receiver and transmitted to a decoder at the end for decoding and analysis, generating a picture of stress changes within the soil during the plastic-steel sheet pile operation. 2. Fiber optics on the outer surface of the plastic-steel sheet pile compare their position with those at the active end, analyzing stress and monitoring relative movement. 3. Fiber optic, sound, and temperature differential monitoring devices are installed on the outer surface of the plastic-steel sheet pile to analyze water seepage.

[0071] The present invention and its embodiments are described schematically above and are not intended to be limiting. The accompanying drawings illustrate only one embodiment of the present invention and are not intended to be limiting. Therefore, if a person skilled in the art is inspired by the present invention and, without departing from the spirit of the present invention, devises methods and embodiments similar to the present invention without inventive means, such methods and embodiments shall fall within the scope of protection of the present invention.

Claims

1. An intelligent anti-seepage plate capable of long-term monitoring, comprising a body (1), wherein the body (1) comprises a plate-shaped main board (2) and wing boards (3) arranged on both sides of the main board (2), wherein the wing boards (3) are provided with connecting ends, and wherein: The invention comprises a sensor, wherein the sensor comprises an optical fiber (71) and a transceiver (72) connected to the upper end of the optical fiber (71); a plurality of optical fibers (71) are distributed on the outer surface or / and inside of the body (1); the optical fibers (71) extend downward along the length direction of the body (1) and are used to detect changes in the body (1) or / and its surrounding environment; an anchor rod (6) extending along the length direction of the main board (2) is provided on the surface of the main board (2); the anchor rod (6) comprises a main rod (61) and a connecting portion (62); the connecting portion (62) connects the main rod (61) and the main board (2); the cross-sectional width of the main rod (61) is greater than the cross-sectional width of the connecting portion (62); and an optical fiber (71) is provided between the main rod (61) and the main board (2) and near the connecting portion (62).

2. The intelligent anti-seepage plate capable of long-term monitoring according to claim 1, characterized in that: The optical fiber (71) is embedded in the body (1) and is integrally formed with the body (1).

3. The intelligent anti-seepage plate capable of long-term monitoring according to claim 2, characterized in that: The outer layer of the optical fiber (71) is coated with a heat insulation layer, a reinforcement layer and a protective layer.

4. The intelligent anti-seepage plate capable of long-term monitoring according to claim 1, characterized in that: It includes an optical fiber (71) bonded to the surface of a body (1) by an adhesive.

5. The intelligent anti-seepage plate capable of long-term monitoring according to claim 4, characterized in that: The optical fiber (71) bonded to the surface of the body (1) is protected by a steel wire layer and is wrapped with a polymer material on the outer layer.

6. The intelligent anti-seepage plate capable of long-term monitoring according to claim 1, characterized in that: The diameter of the main rod (61) is greater than twice the width of the connecting portion (62).

7. The intelligent anti-seepage plate capable of long-term monitoring according to claim 6, characterized in that: The connecting portion (62) comprises at least one mounting groove for fixing the optical fiber (71), and the mounting groove is adapted to the size of the optical fiber (71).

8. The intelligent anti-seepage plate capable of long-term monitoring according to claim 1, characterized in that: The anchor rods (6) are staggeredly arranged on the two side surfaces of the main board (2), and the distance between the top ends of the anchor rods (6) and the surface of the main board (2) is greater than the thickness of the main board (2).

9. The intelligent anti-seepage plate capable of long-term monitoring according to claim 1, characterized in that: The connecting end portion comprises a first connecting plate (4) and a second connecting plate (5), wherein the first connecting plate (4) comprises a first end plate (41) and a male head (42), and the second connecting plate (5) comprises a second end plate (51) and a female head (52), and an optical fiber (71) is provided on the first end plate (41) or the second end plate (51), or the optical fiber (71) is provided on the male head (42) or the female head (52).

10. An intelligent anti-seepage wall, comprising the intelligent anti-seepage plate capable of long-term monitoring according to any one of claims 1 to 9, characterized in that: It also includes a cement wall (10), the intelligent anti-seepage plates are sequentially connected and arranged inside the cement wall (10), the anchor rods (6) are combined with the cement wall (10), and the sensor can monitor the leakage changes of the cement wall (10).

11. The intelligent anti-seepage wall according to claim 10, characterized in that: The thickness of the cement wall (10) is 300 mm to 450 mm, the thickness of the intelligent anti-seepage plate is 100 mm to 150 mm, and the intelligent anti-seepage plate is arranged in the middle part of the cement wall (10).

12. The intelligent anti-seepage wall according to claim 11, characterized in that: The main board (2) is arranged close to the anti-seepage side, and the thickness of the cement wall (10) is 350 mm; or the main board (2) is arranged alternately close to and away from the anti-seepage side, and the thickness of the cement wall (10) is 400 mm.

Images