Intelligent anti-seepage plate capable of being monitored for long time and intelligent anti-seepage wall

Abstract

The invention relates to the technical field of underground structure walls of water conservancy projects, in particular to an intelligent anti-seepage plate capable of being monitored for a long time and an intelligent anti-seepage wall. The intelligent anti-seepage plate comprises a body, the body comprises a plate-shaped main plate and wing plates arranged on the two sides of the main plate, each wing plate is provided with a connecting part, a plurality of sensors with the upper ends connected with a transceiver are distributed on the outer surface or in the body, each sensor comprises an optical fiber, and the optical fibers extend downwards in the length direction of the body. The sensor is used for detecting changes of the body and surroundings. The optical fiber is implanted in the body of the anti-seepage plate, the stress change of the anti-seepage plate or the thermal radiation effect and vibration fluctuation change in water around the anti-seepage plate are collected through the optical fiber, whether the surrounding environment of the anti-seepage plate is changed or not is determined, and whether leakage points exist or not is deduced. The optical fiber is integrated on the anti-seepage plate and forms a permanent anti-seepage monitoring facility with the anti-seepage plate, long-term intelligent monitoring can be carried out on hydraulic structures such as a dam, and it is ensured that leakage hidden dangers are found and prevented and treated in time.

Description

Technical Field

[0001] The 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] When extreme weather events occur frequently, continuous heavy rainfall and long-term high water levels pose a serious threat to levees. How to upgrade or improve the original levee anti-seepage system in the mainstream levees of important river basins to solve the potential safety hazards caused by leakage when the earth levees are operating at high water levels, minimize the major risks such as pipe bursts and dam breaches caused by levee leakage, and ensure the stability of important levees and the safety of important infrastructure has become an urgent problem to be solved.

[0003] For dam anti-seepage, plastic steel sheet piles are usually driven into the water side of the dam to isolate the river and the dam. The document with the patent publication number of Taiwan Province of China TW201329316A discloses a (metal) clamping device suitable for the shape of plastic steel sheet piles, which clamps the plastic steel sheet piles and drives them into the ground through a pile driver hammer while clamping, and then pulls out the clamping device separately to leave the plastic steel sheet piles in the ground. This method has a permanent isolation effect such as retaining walls, water retaining walls, and breakwaters for newly built river channels and river channels with low water levels, but it is difficult to install and construct existing dams, and it is difficult to prevent long-term high water levels from harming the dams.

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

[0005] Flood-proof plastic steel sheet piles usually improve their anti-seepage performance by increasing their thickness and strength. For example, the flood-proof ecological sheet pile disclosed in Chinese utility model patent CN217923505U has an exposed surface designed as a circular arc surface, and is provided with a first protrusion and a second protrusion to enhance the structural strength. At the same time, sealing strips are added at the C-shaped lock part and the T-shaped lock to achieve a better sealing effect. This flood-proof board has a strong structure for flood control, but the overall thickness is large, it is difficult to drive it into the ground, and the long-term monitoring function is insufficient, making it difficult to grasp the status of the levee in real time.

[0006] At present, directly driving plastic steel sheet piles into the ground with a pile driver can easily cause damage to the pile body and is difficult to adapt to complex and changeable geological conditions. After long-term use, displacement may occur, thus affecting its anti-seepage effect. Moreover, when plastic steel sheet piles are used in projects, more than 90% involve concealed projects. There is no objective monitoring of the status of plastic steel sheet piles inside the project. Excavation testing causes serious damage to existing projects, and monitoring and maintenance are 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 state 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 timely maintain them, thereby reducing 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: The present invention provides an intelligent anti-seepage plate capable of long-term monitoring, comprising a main body, wherein the main body comprises a plate-shaped main board and wing plates arranged on both sides of the main board, the wing plates are provided with connecting plates, and comprise sensors, wherein the sensor comprises an optical fiber and a transceiver connected to the upper end of the optical fiber, and a plurality of optical fibers are distributed on the outer surface and / or inside of the main body, and the optical fibers extend downward along the length direction of the main body, and are used to detect changes in the main body and / or its surrounding environment.

[0009] Compared with the prior art, the present invention implants optical fibers in the body of the anti-seepage board, collects stress changes of the anti-seepage board or thermal radiation effects and vibration fluctuations in the water around the anti-seepage board through optical fibers, determines whether the environment around the anti-seepage board has changed, and infers whether there is a leakage point. The optical fiber is integrated into the anti-seepage board and forms a permanent anti-seepage monitoring facility with the anti-seepage board, which can be used for long-term intelligent monitoring of the dam setting to ensure timely prevention and treatment of leakage hazards.

[0010] 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.

[0011] 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.

[0012] Preferably, the outer layer of the optical fiber is coated with a heat insulation layer, a reinforcement layer and a protective layer. The protection of the aramid fiber, the Teflon tube heat insulation layer and the reinforcement layer ensures that the optical fiber is not damaged by factors such as temperature and stress when implanted.

[0013] Preferably, the optical fiber is bonded to the surface of the body by an adhesive. The adhesive can be used to directly transform the existing anti-seepage board or plastic steel sheet pile, and can also quickly intelligentize the newly manufactured anti-seepage board, ensuring that the optical fiber is not affected by temperature and stress. The adhesive can be made of water-resistant and anti-aging materials.

[0014] Preferably, a steel wire layer is used for protection, and a polymer material is wrapped on the outer layer.

[0015] Preferably, an anchor rod extending along the length direction of the main board is arranged on the surface of the main board, and the anchor rod comprises a main rod and a connecting part, and the connecting part connects the main rod and the main board.

[0016] On the one hand, the anchor rod of the present invention can strengthen the structural strength of the main board and enhance the stability of the anti-seepage plate, so that the anti-seepage plate can still be used alone without the support of H-shaped steel, wooden piles, etc., thereby reducing the use cost and construction process cost. The anchor rod can penetrate into the soil or underground cement continuous wall, tightly combine with the surrounding soil, effectively prevent the displacement or deformation of the anti-seepage plate, reduce the separation of the two interfaces when the formation is disturbed, and thus enhance the overall anti-seepage performance and stability.

[0017] 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, and achieve a better anti-seepage effect, and also ensure that the anti-seepage plate is more stable under complex geological conditions.

[0018] Preferably, an optical fiber is provided between the main rod and the main plate, near the connection portion. If leakage occurs around the anti-seepage plate, obvious soil unevenness and concentrated water seepage will be formed on both sides of the anchor rod. With the combination of the anchor rod and the optical fiber, the water and soil changes around the anchor rod are more easily captured by the optical fiber sensor, forming an effective monitoring of dam leakage.

[0019] Preferably, the connection portion comprises at least one mounting groove for fixing the optical fiber, and the mounting groove is adapted to the size of the optical fiber. Around the optical fiber connection, the anchor rod can effectively protect the optical fiber.

[0020] Preferably, the anchor rods are staggered on the two sides of the main board, and the distance between the top of the anchor rods and the surface of the main board is greater than the thickness of the main board. The setting of the anchor rods can increase the vertical bending resistance of the main board by at least two times, while reducing the overall resistance, so that the anti-seepage plate can be implanted underground. At the same time, the thickness of the main board cannot be too large, so that the anti-seepage plate has a certain flexibility in the horizontal direction and has the ability to deform to adapt to complex geological environments. At the same time, it is necessary to ensure that the optical fiber monitoring device is closely combined with the soil layer to avoid gaps, thereby preventing misjudgment caused by separation.

[0021] Preferably, the connecting plate 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 on the convex head or the concave head.

[0022] Although the male and female connectors are designed to fit tightly together, it is still necessary 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.

[0023] 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 or impact or leakage changes on the cement wall.

[0024] The cement wall formed on the dam facilitates the insertion of the anti-seepage plate without damaging the optical fiber. The combination of the two makes the intelligent anti-seepage monitoring of the dam a reality. The solid structure of the cement wall not only improves the stability of the anti-seepage plate, but also significantly enhances the anti-seepage effect, ensuring its reliability and durability in long-term applications.

[0025] Preferably, the thickness of the cement wall is 300mm to 450mm, the thickness of the intelligent anti-seepage board is 100mm to 150mm, and the intelligent anti-seepage board is arranged in the middle of the cement wall. The thickness of the cement wall is 2-3 times that of the anti-seepage board. The thickness of the cement wall is moderate, which does not affect the anti-seepage effect and can prevent the construction from damaging the main body of the existing dam structure.

[0026] 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

[0027] Figure 1 It is a schematic diagram of the structure of the anti-seepage plate from a top view; Figure 2 It is a schematic diagram of the main structure of the anti-seepage plate; Figure 3 This is a schematic diagram of the narrow wall structure of the intelligent anti-seepage wall; Figure 4 It is a schematic diagram of the wide wall structure of the intelligent anti-seepage wall; Figure 5 This is a cross-sectional structural diagram of the intelligent anti-seepage wall on the dam; Figure 6 This is a bird's-eye view of the structure of the smart anti-seepage wall on the dam.

[0028] 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

[0029] Embodiments of the present invention are described in detail below, 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 should not be construed as limiting the present invention.

[0030] 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.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more, unless otherwise clearly defined.

[0032] In the present invention, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense, covering fixed connection, detachable connection and integral connection; they can be directly connected, or indirectly connected through an intermediate medium, or even refer to the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Embodiment 1:

[0034] 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, wherein the body 1 comprises a plate-shaped main board 2 and wing boards 3 arranged on both sides of the main board 2. One end of the wing board 3 is connected to the main board 2 and extends outward, and connecting boards are respectively arranged at the other ends of the two wing boards 3, and the connecting boards are respectively provided with a first connecting board 4 and a second connecting board 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.

[0035] 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 are engaged with each other to achieve sequential connection and tight fixation of the anti-seepage plates.

[0036] The main board 2 is provided with an anchor rod 6, which includes a main rod 61 and a connecting portion 62. The main rod 61 is generally cylindrical and extends parallel to the length direction of the main board 2. The connecting portion 62 is responsible for connecting the main rod 61 with the main board 2, and its width is smaller than the diameter of the main rod 61, so as to ensure that the anchor rod 6 can be firmly embedded therein.

[0037] Sensors are arranged inside the body 1 or on one side or both sides, and the sensors are used to monitor the anti-seepage status in real time, transmit data to a central processing system, and analyze leakage risks.

[0038] 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 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 body 1, thereby improving the accuracy and stability of 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, and the stress condition of the plate can be monitored. 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 to ensure long-term stable data transmission.

[0039] The anchor rods 6 are evenly distributed on the surface of the main board 2 with uniform spacing to ensure overall balanced force. 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 service life of the anti-seepage system. With 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 plate 3 of the main body 1 is made of high-strength composite materials to enhance deformation resistance, while requiring a certain degree of deformation flexibility, so that the wing plate 3 can bend moderately when subjected to external force.

[0040] like Figure 3 - Figure 4As 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 to the cross section perpendicular to the main board 2 is 120mm, and the length projected to 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 connecting plate is 90mm wide and 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.

[0041] The intelligent anti-seepage board body is used as a structural support, and no additional H-shaped steel or foundation piles are required. The addition of anchor rods enhances the structural strength and improves the bonding between the anti-seepage board and the soil, which is convenient for optical fiber to monitor environmental changes. The wing plate 3 is designed to be smaller, which can reduce the overall thickness of the anti-seepage wall. At the same time, the overall design of the intelligent anti-seepage board takes into account both rigidity and flexibility, adapts to complex geological conditions, and ensures long-term stable operation.

[0042] The preparation process of the intelligent anti-seepage board is: The raw materials are put into the premixing bin according to the material ratio, mixed evenly, and then sent to the powder bin through the elevator. After the special glass fiber granules and powder are mixed for the second time, the mixture is transported to the production line through the pipe chain system, and the feeding speed is controlled by the die head to put the raw materials into the extruder.

[0043] The extruder raises the temperature to the production temperature before feeding. After the mixed material enters the extruder, it is heated and softened in the extruder to fuse the reinforced glass fiber with the raw material. The reinforced glass fiber has an exclusive 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 rotating the screw.

[0044] The extrusion die opens a channel to extrude the embedded optical fiber with the sheet pile to form a whole. After forming, it is sent to the shaping die to dissipate heat and cool down through cold water to cool the plastic steel plate. The outer layer of the optical fiber needs to be wrapped with a heat insulation layer and a reinforcement layer to protect the internal optical fiber bundle, and then it is pulled and co-extruded to form a whole with the sheet pile. The outer layer of the optical fiber is wrapped with a heat insulation layer and a reinforcement layer, such as aramid fiber, Teflon and a metal sleeve, to enhance strength and heat insulation.

[0045] 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%.

[0046] In the stratum, the vertical body of the anti-seepage plate will be affected by forces such as soil pressure and water pressure. When the anti-seepage plate is deformed due to force, the internal optical fiber will transmit the signal to the transceiver at the upper end, which 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 levels can be monitored to show the force comparison. When the stress changes suddenly, the system can issue a warning report. For example, distributed optical fiber temperature sensing technology has been used to monitor the leakage of panel rockfill dams. Through long-term monitoring and data analysis, the leakage point can be accurately located.

[0047] Embodiment 2:

[0048] Embodiment 2 of the present invention discloses an intelligent anti-seepage plate capable of long-term monitoring, which is different from Embodiment 1 in that: The optical fiber 71 of the sensor is fixed on the surface of the main board 2, and the optical fiber can be selected as an active heating type stable vibration composite sensing optical cable. In this embodiment, the optical fiber is an active heating type stable vibration composite sensing optical cable, and the main installation method is to stick it on the anti-seepage board, and the process monitoring that requires heat radiation and vibration to be transmitted from one side to the other side is required. Of course, it can also be pre-buried in the board.

[0049] 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 to provide real-time data feedback 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 the mounting groove is adapted to the size of the sensor.

[0050] The intelligent anti-seepage board is used to install the surface monitoring optical fiber, and the optical fiber is configured on the entire board surface through anchor rod secondary bonding and other methods. The carbon fiber cloth is soaked in ethyl cyanoacrylate, and then the optical fiber cable is covered and fixed on the anchor rod protrusion of the anti-seepage board surface. Other polymer materials can also be used to wrap the optical fiber 71, and a steel wire outer layer is added on the outer layer.

[0051] When the anti-seepage board is in the formation, the optical cable is powered on the upper equipment, the optical cable generates heat and vibrates, and the heat radiation effect and vibration fluctuation of heat and vibration in the water are detected, and the possible leakage points are calculated and analyzed. When the anti-seepage board plays a role in the formation, it isolates the soil and groundwater on both sides. In the process of heat and vibration conduction, the soil and groundwater on both sides of the anti-seepage board form a uniform medium; once leakage occurs, the water flow will pass through the channel of the anti-seepage board to penetrate both sides. When heat and vibration are conducted through the water channel, it is obviously different from the previous state, that is, the leakage location can be identified.

[0052] Embodiment three:

[0053] 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.

[0054] 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 double intelligent protection system.

[0055] Step 1: According to the equipment weight requirements of the TRD method, after completing the precise setting out of the center line of the anti-seepage wall, a series of reinforcement measures such as laying steel plates are immediately implemented on the construction site to ensure that the site can bear the weight of the mechanical equipment and ensure the stability of the pile driver during operation. The excavator excavates a working trench parallel to the center line of the anti-seepage wall, with a width of about 0.6 meters and a depth of more than 1.0 meters.

[0056] 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.

[0057] Inject excavation fluid at 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 liquid to force it to mix and stir with the original soil, and form an underground continuous cement soil wall of equal thickness.

[0058] Step 3: Insert high-strength intelligent anti-seepage board.

[0059] After the construction reaches a certain working surface, the anti-seepage plate is inserted. The anti-seepage plate needs to be inserted vertically into the cement soil, with a verticality deviation of no more than 1 / 300, and must be inserted within 3 hours after the mixing wall construction is completed.

[0060] The intelligent anti-seepage plate has added multiple anchor rods on the surface. Compared with the smooth surface of the existing plate, it is more conducive to combining with the soil, concrete, cement soil and other media on both sides.

[0061] 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 less.

[0062] After a series of experiments and evaluations, it was found that the cement continuous wall with a thickness of 300mm to 450mm and the smart anti-seepage board 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.

[0063] 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 arranged alternately close to or away from the anti-seepage side, and the thickness of the cement wall 10 is 400 mm.

[0064] like Figure 5 , Figure 6 As shown, in actual use, the intelligent anti-seepage wall is set in the middle of the upper surface of the dam 30 through construction, and the main body 1 of the intelligent anti-seepage board is in the middle of the cement wall 10, and the water level of the river surface 20 is within the range of the height change, and the main body 1 prevents leakage. The dam itself serves as a stable support for the intelligent anti-seepage wall. Under the condition of no water seepage, it can maintain the integrity of the structure and effectively prevent the risk of dam collapse.

[0065] Compared with the prior art, the present invention has the following features: 1. After the plastic-steel sheet pile forms a wall in the soil layer, stress is generated inside. The optical fiber inside the sheet pile senses compression and tension, which are received by the upper receiver and sent to the end decoder for decoding and analysis, forming the stress change inside the soil when the plastic-steel sheet pile is used. 2. The optical fiber on the outer surface of the plastic-steel sheet pile is compared with the position difference and stress analysis of the optical fiber at the active end to monitor relative movement analysis. 3. Optical fiber, sound and temperature difference monitoring equipment are set on the outer surface of the plastic-steel sheet pile to analyze water seepage.

[0066] The present invention and its embodiments are described schematically above, which is not restrictive. The drawings show only one embodiment of the method of the present invention, which is not limited thereto. Therefore, if a person skilled in the art is inspired by the invention and creatively designs methods and embodiments similar to the technical solution without departing from the purpose of the invention, they should all fall within the protection scope of the present invention.

Claims

1. 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 boards (3) arranged on both sides of the main board (2), the wing boards (3) being provided with connecting boards, characterized in that: 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 of the body (1) or / and inside 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.

2. According to claim 1, a smart anti-seepage plate capable of long-term monitoring is 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: The optical fiber (71) is bonded to the surface of the body (1) by means of an adhesive.

5. The intelligent anti-seepage plate capable of long-term monitoring according to claim 4, characterized in that: The optical fiber (71) is protected by a steel wire layer, and a polymer material is added to the outer layer for wrapping.

6. The intelligent anti-seepage plate capable of long-term monitoring according to any one of claims 1 to 5, characterized in that: An anchor rod (6) extending along the length direction of the main board (2) is arranged 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).

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

8. The intelligent anti-seepage plate capable of long-term monitoring according to claim 7, characterized in that: An optical fiber (71) is arranged between the main rod (61) and the main board (2) at a position close to the connecting portion (62).

9. The intelligent anti-seepage plate capable of long-term monitoring according to claim 8, 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).

10. The intelligent anti-seepage plate capable of long-term monitoring according to claim 6, characterized in that: The anchor rods (6) are arranged alternately on two side surfaces of the main board (2); 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).

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

12. An intelligent anti-seepage wall, comprising the intelligent anti-seepage plate capable of long-term monitoring according to any one of claims 1 to 11, characterized in that: It also comprises a cement wall (10), wherein the intelligent anti-seepage panels are sequentially connected and arranged inside the cement wall (10), and the sensor can monitor whether the cement wall (10) is subjected to pressure or impact or leakage changes.

13. The intelligent anti-seepage wall according to claim 12, 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).

14. The intelligent anti-seepage wall according to claim 13, 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.

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