Reservoir dam integrated safety studying and judging system

Abstract

The utility model provides a reservoir and dam integrated safety research and judgment system, which relates to the technical field of dam safety research and judgment and is arranged on a dam body between a reservoir area and the downstream of the dam body. The safety studying and judging system comprises a plurality of safety monitoring devices, an osmotic pressure monitoring device used for measuring pore water pressure, a dam foundation seepage monitoring device used for monitoring dam foundation seepage and a Beidou displacement monitoring device used for monitoring dam body displacement, and the safety monitoring devices are arranged at the top end of a dam body. The safety monitoring device has rainfall monitoring and water level monitoring functions, the seepage pressure monitoring device is vertically buried in a dam body, the dam foundation seepage monitoring device is arranged at the junction of the downstream of the dam body and the dam body, and the Beidou displacement monitoring device is arranged at the top end of the dam body. The satellite data of the BD / GPS / GLONASS is acquired through a GNSS (Global Navigation Satellite System) antenna; the GNSS receiver is connected with the network antenna through a radio frequency cable, and the network antenna carries out the data receiving and transmitting of the whole Netcom frequency band.

Description

Technical Field

[0001] The utility model relates to the technical field of dam safety assessment, in particular to an integrated reservoir dam safety assessment system. Background Art

[0002] Reservoir and dam safety monitoring involves measuring and observing the main structure, foundation, bank slopes, related facilities, and surrounding environment of water conservancy and hydropower projects through instrumented observation and inspection. Dam displacement monitoring is a mandatory daily task mandated by regulations and primarily involves monitoring dam deformation, seepage, and environmental parameters. Currently, automated safety monitoring for earth-rockfill dams lags behind that for concrete dams. Furthermore, safety monitoring methods for most small and medium-sized reservoirs and dams remain outdated, with aging monitoring equipment and low accuracy. Many small reservoirs even lack dam monitoring methods. Major floods pose a serious threat to the safety of people and property at the dam and downstream. Therefore, there is an urgent need to develop a highly automated and advanced dam monitoring system to improve flood prevention and disaster reduction capabilities and protect people's lives and property.

[0003] For example, a Chinese patent discloses a "dam and reservoir safety monitoring system" (patent number: CN202210119659.3). The patent includes a data perception unit: including N attitude sensors, N>10; the attitude sensors are evenly distributed and fixed on the dam surface of the dam and reservoir; the edge computing end: obtains data from the data acquisition unit and performs data analysis; the control terminal: deployed on the server or cloud of the safety monitoring center, used for data management, early warning reception and data visualization; it can effectively save monitoring costs and improve monitoring efficiency.

[0004] However, the aforementioned dam and reservoir safety assessment system is unable to monitor dam displacement, dam seepage, or dam foundation leakage. This is why this case arose. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies of the existing technology, the present invention provides an integrated safety assessment system for reservoirs and dams, which solves the problems raised in the above-mentioned background technology.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an integrated safety analysis system for a reservoir dam, the safety analysis system is arranged on the dam body between the reservoir area and the downstream of the dam body, the safety analysis system includes several safety monitoring devices, a seepage pressure monitoring device for measuring pore water pressure, a dam foundation seepage monitoring device for monitoring dam foundation seepage, and a Beidou displacement monitoring device for monitoring dam body displacement. The safety monitoring device is arranged at the top of the dam body, and the safety monitoring device has rainfall monitoring and water level monitoring functions. The seepage pressure monitoring device is vertically buried in the dam body, the dam foundation seepage monitoring device is arranged at the junction of the downstream dam body and the dam body, and the Beidou displacement monitoring device is arranged at the top of the dam body.

[0009] Preferably, the Beidou displacement monitoring device includes a column, a solar panel, a GNSS receiver, and a GNSS antenna. The GNSS receiver is arranged inside the column, the GNSS antenna is arranged at the top of the column and electrically connected to the GNSS receiver, the solar panel is arranged on the side of the column, and the top of the column is also provided with a rain shielding mechanism for wrapping the top of the column.

[0010] Preferably, the rainproof mechanism includes a support plate, several U-shaped frames, a rainproof cloth, a ring rail and a winding assembly. The support plate is arranged on the top of the column, the ring rail is arranged on both sides of the support plate, the first U-shaped frame is fixed on the support plate, and the remaining U-shaped frames are slidably adapted in the ring rail. The rainproof cloth covers the outside of the several U-shaped frames and is connected to them, and the winding assembly is used to open and close the U-shaped frames.

[0011] Preferably, the winding assembly includes a winding disk, a pull rope, and a motor. The winding disk is rotatably arranged at the bottom of the support plate. A sliding sleeve is provided on each U-shaped frame. One end of the pull rope is wound on the winding disk, and the other end passes through the sliding sleeve in turn and is fixed on the last sliding sleeve. A spring is provided on the pull rope outer sleeve between two adjacent sliding sleeves.

[0012] Preferably, an electromagnet is provided on the support plate, and a magnetic block corresponding to the electromagnet is provided on the last U-shaped frame. When the electromagnet is energized, the magnetic pole of one side thereof is opposite to that of the magnetic block.

[0013] (3) Beneficial effects

[0014] The utility model provides an integrated safety assessment system for reservoirs and dams. It has the following beneficial effects:

[0015] This integrated reservoir and dam safety assessment system acquires BD / GPS / GLONASS satellite data via a GNSS antenna. The GNSS receiver is connected to the network antenna via a radio frequency cable, allowing data transmission and reception across all network frequency bands. The GNSS receiver samples RTCM data from the GNSS navigation module at intervals of 1, 5, 15, and 30 seconds, and uploads it in real time to the GNSS management platform's cloud server via the network communication module. The cloud server then performs comprehensive differential analysis, achieving displacement monitoring accuracy of less than 5mm.

[0016] 2. The integrated reservoir and dam safety assessment system uses a rain shield to provide physical protection for the GNSS antenna and GNSS receiver, effectively protecting the entire column from rain, insects, and corrosion. It also protects the electromagnetic wave transmission of the GNSS antenna and network antenna, and supports the effective transmission of electromagnetic waves in multiple frequency bands such as 4G full network access and BD / GPS / GLONASS. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall axonometric structure of the present invention;

[0018] Figure 2 This is an axonometric diagram of the Beidou displacement monitoring device of the present utility model;

[0019] Figure 3 This is a schematic structural diagram of the rain shielding mechanism of the present utility model;

[0020] Figure 4 This is a diagram of the tarpaulin of the present invention in a folded state.

[0021] In the figure: 1 reservoir area, 2 dam body, 3 downstream of the dam body, 4 safety monitoring device, 5 seepage pressure monitoring device, 6 dam foundation seepage monitoring device, 7 cable, 8 Beidou displacement monitoring device, 11 column, 12 support plate, 13 U-shaped frame, 14 tarpaulin, 15 solar panel, 16 ring track, 17 GNSS receiver, 18 GNSS antenna, 81 reel, 82 pull rope, 83 sleeve, 84 spring, 85 motor, 86 electromagnet, 87 magnetic block. DETAILED DESCRIPTION

[0022] The present invention provides an integrated safety assessment system for reservoirs and dams. Figure 1-4 As shown, the safety analysis and judgment system is set on the dam body 2 between the reservoir area 1 and the downstream 3 of the dam body. The safety analysis and judgment system includes several safety monitoring devices 4, a seepage pressure monitoring device 5 for measuring pore water pressure, a dam foundation seepage monitoring device 6 for monitoring dam foundation seepage, and a Beidou displacement monitoring device 8 for monitoring the displacement of the dam body 2.

[0023] Safety monitoring device 4 is installed at the top of dam body 2. Several safety monitoring devices 4 are spaced apart along the length of dam body 2. Safety monitoring device 4 has functions such as rainfall monitoring, water level monitoring, video AI monitoring, voice broadcast reminders, solar power generation, lightning rod, and LED lighting. Safety monitoring device 4 is existing technology.

[0024] A seepage pressure monitoring device 5 is vertically embedded in the dam body 2 and includes a piezometer and a pressure gauge. The piezometer is embedded vertically within the dam body 2 and the pressure gauge is located at the bottom of the piezometer. A cable 7 connects the seepage pressure monitoring device 5 to the MCU collection box of the safety monitoring device 4.

[0025] The dam foundation seepage monitoring device 6 is located at the junction of the downstream dam body 3 and the dam body 2. It uses an integrated IoT-enabled intelligent radar water level gauge, installed at the weir at the bottom of the dam body 2. This integrated IoT-enabled intelligent radar water level gauge uses a short-range radar water level sensor to measure the water level at the weir. Its built-in seepage calculation and analysis function calculates the reservoir dam's seepage rate in real time, and regularly transmits this real-time data via LoRa to the integrated reservoir monitoring terminal.

[0026] The Beidou displacement monitoring device 8 is arranged at the top of the dam body 2. The Beidou displacement monitoring device 8 can adopt the Beidou GNSS displacement monitoring system with model TH-WY1.

[0027] like Figure 2 As shown, the Beidou displacement monitoring device 8 includes a column 11, a solar panel 15, a GNSS receiver 17, and a GNSS antenna 18. The GNSS receiver 17 is arranged inside the column 11, and the GNSS antenna 18 is arranged on the top of the column 11 and is electrically connected to the GNSS receiver 17.

[0028] The GNSS receiver 17 is connected to the GNSS antenna 18 via a radio frequency cable, and BD / GPS / GLONASS satellite data is obtained through the GNSS antenna 18. The GNSS receiver 17 is connected to the network antenna via a radio frequency cable, and data is transmitted and received in the full network frequency band through the network antenna. The GNSS receiver can sample RTCM data of the GNSS navigation module at intervals of 1 second, 5 seconds, 15 seconds, and 30 seconds, and upload it to the cloud server of the GNSS management platform in real time through the network communication module, so that the cloud server can perform comprehensive differential analysis and obtain a displacement monitoring accuracy of less than 5mm. The power consumption of the GNSS receiver 17 is less than 5W, and it can meet the requirements of 7 days of operation in continuous rainy weather when powered by a 100W solar panel 15 system.

[0029] A solar panel 15 is provided on the side of the column 11. The solar panel 15 is used to power the device. A battery for storing electricity is provided in the column 11. A rain shielding mechanism for wrapping the top of the column 11 is also provided on the top of the column 11.

[0030] The rainproof mechanism includes a support plate 12, several U-shaped frames 13, a rainproof cloth 14, a ring rail 16 and a winding assembly. The support plate 12 is arranged on the top of the column 11. The structure of the ring rail 16 is a circular base. A sliding groove is opened in a circumferential direction on the circular base for the end of the U-shaped frame 13 to slide. The ring rail 16 is arranged on both sides of the support plate 12. The first U-shaped frame 13 is fixed on the support plate 12, and the remaining U-shaped frames 13 are slidably adapted in the ring rail 16. When the several U-shaped frames 13 are fully unfolded, the rainproof cloth 14 covers the outside of the several U-shaped frames 13 and is connected to them. The winding assembly is used to open and close the U-shaped frames 13.

[0031] The rain shielding mechanism is used to provide physical protection for the GNSS antenna 18 and the GNSS receiver 17, and to achieve effective rain, insect and corrosion protection for the entire column 11; it also provides protection for the electromagnetic wave transmission of the GNSS antenna 18 and the network antenna 17, and supports the effective transmission of electromagnetic waves in multiple frequency bands such as 4G full network access and BD / GPS / GLONASS.

[0032] like Figure 3 As shown, the winding assembly includes a winding drum 81, a pull rope 82, and a motor 85. The winding drum 81 is rotatably set at the bottom of the support plate 12. A sliding sleeve 83 is set on each U-shaped frame 13. One end of the pull rope 82 is wound on the winding drum 81, and the other end passes through the sliding sleeves 83 in turn and is fixed on the last sliding sleeve 83. A spring 84 is provided on the outer sleeve of the pull rope 82 between two adjacent sliding sleeves 83.

[0033] A rain sensor and a humidity sensor are provided on the side of the column 11 to monitor whether it is raining. When it is not raining, the rain shielding mechanism is folded up, and when it is raining, the rain shielding mechanism is unfolded.

[0034] When the rain shield mechanism needs to be unfolded, the motor 85 drives the reel 81 to release the pull rope 82, and the U-shaped frames 13 are gradually unfolded to the position as shown in FIG. Figure 2 When the rain shield mechanism needs to be folded, the motor 85 drives the reel 81 to reel in the rope 82, and the U-shaped frames 13 compress the springs 84 and gradually retract to the state shown. Figure 4 The status shown.

[0035] An electromagnet 86 is mounted on the support plate 12, and a magnetic block 87 corresponding to the electromagnet 86 is mounted on the last U-shaped frame 13. When electromagnet 86 is energized, its magnetic pole is opposite to that of the magnetic block 87. A controller controls the motor 85, electromagnet 86, rain sensor, and humidity sensor. When it rains, electromagnet 86 and motor 85 operate synchronously. When the U-shaped frames 13 are fully extended, the electromagnet 86 attracts the last U-shaped frame 13, preventing it from being blown away by the wind.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated safety assessment system for a reservoir dam, the safety assessment system being arranged on a dam body (2) between a reservoir area (1) and a downstream portion of the dam body (3), and characterized by: The safety assessment system comprises a plurality of safety monitoring devices (4), a seepage pressure monitoring device (5) for measuring pore water pressure, a dam foundation seepage monitoring device (6) for monitoring dam foundation seepage, and a Beidou displacement monitoring device (8) for monitoring the displacement of the dam body (2). The safety monitoring device (4) is arranged at the top of the dam body (2). The safety monitoring device (4) has rainfall monitoring and water level monitoring functions. The seepage pressure monitoring device (5) is vertically buried in the dam body (2). The dam foundation seepage monitoring device (6) is arranged at the junction of the dam body downstream (3) and the dam body (2). The Beidou displacement monitoring device (8) is arranged at the top of the dam body (2).

2. The integrated reservoir and dam safety assessment system according to claim 1 is characterized by: The Beidou displacement monitoring device (8) comprises a column (11), a solar panel (15), a GNSS receiver (17), and a GNSS antenna (18). The GNSS receiver (17) is arranged in the column (11), the GNSS antenna (18) is arranged on the top of the column (11) and is electrically connected to the GNSS receiver (17), the solar panel (15) is arranged on the side of the column (11), and the top of the column (11) is also provided with a rain shielding mechanism for wrapping the top of the column (11).

3. The integrated reservoir and dam safety assessment system according to claim 2 is characterized by: The rainproof mechanism comprises a support plate (12), a plurality of U-shaped frames (13), a rainproof cloth (14), a ring rail (16) and a reeling assembly, wherein the support plate (12) is arranged on the top of the column (11), the ring rail (16) is arranged on both sides of the support plate (12), the first U-shaped frame (13) is fixed on the support plate (12), and the remaining U-shaped frames (13) are all slidably fitted in the ring rail (16), the rainproof cloth (14) covers the outside of the plurality of U-shaped frames (13) and is connected thereto, and the reeling assembly is used for opening and closing the U-shaped frames (13).

4. The integrated reservoir and dam safety assessment system according to claim 3 is characterized by: The winding assembly includes a winding disk (81), a pull rope (82), and a motor (85). The winding disk (81) is rotatably arranged at the bottom of the support plate (12). A sliding sleeve (83) is provided on each U-shaped frame (13). One end of the pull rope (82) is wound on the winding disk (81), and the other end passes through the sliding sleeves (83) in sequence and is fixed on the last sliding sleeve (83). A spring (84) is provided on the outer sleeve of the pull rope (82) between two adjacent sliding sleeves (83).

5. The integrated reservoir and dam safety assessment system according to claim 4 is characterized by: The support plate (12) is provided with an electromagnet (86), and a magnetic block (87) corresponding to the electromagnet (86) is provided on the last U-shaped frame (13). When the electromagnet (86) is energized, the magnetic pole of the side corresponding to the magnetic block (87) is opposite.

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