A dam pipe gushing leakage and phreatic line monitor

Abstract

This utility model provides a monitoring instrument for piping seepage and seepage lines in dams, belonging to the field of monitoring and early warning equipment. It includes an integrated probe rod, a data acquisition unit, and a power supply module. The power supply module is electrically connected to the integrated probe rod, and the integrated probe rod is electrically connected to the data acquisition unit. By integrating the probe rod body, vibrating wire piezometer, B electrode, N electrode, M electrode, and A electrode into an integrated probe rod, this utility model can simultaneously achieve "seepage location + dynamic quantification of seepage + water level measurement," providing real-time and accurate three-dimensional seepage channel coordinates, and offering more comprehensive early warning indicators for dam safety.

Description

Technical Field

[0001] This utility model relates to the field of monitoring and early warning equipment, and in particular to a monitoring instrument for piping, seepage and seepage lines in dams. Background Technology

[0002] Piping and seepage are among the major hidden dangers threatening the safety of earth-rock dams. Currently, there are relatively mature dam safety monitoring devices on the market, such as vibrating wire piezometers and high-density resistivity instruments. However, vibrating wire piezometers have limitations: they can only monitor water pressure at local points and are difficult to capture the spatial distribution of seepage channels. Traditional electrical resistivity tomography instruments also have limitations: they are susceptible to environmental interference (such as temperature and humidity), cannot quantify seepage velocity, and suffer from insufficient accuracy due to noise caused by system errors. Due to cost and technological constraints, current earth-rock dam safety monitoring often relies on a single sensor (such as a piezometer) to stably monitor seepage over a long period. However, because the monitoring range of a single sensor is small, data gaps are easily generated. Currently, earth-rock dams mainly rely on manual external electrical resistivity tomography to determine seepage channels in one go. Although this method provides a large detection profile area, it suffers from insufficient detection depth, high data noise, and excessive cost. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a monitoring instrument for piping, seepage, and seepage lines in dams, comprising:

[0004] Integrated probe, data acquisition unit, and power supply module;

[0005] The power supply module is electrically connected to the integrated probe, and the integrated probe is electrically connected to the data acquisition unit.

[0006] Preferred:

[0007] The integrated probe includes: probe body, vibrating wire piezometer, B electrode, N electrode, M electrode and A electrode;

[0008] The vibrating wire piezometer is connected to the lower end of the probe body;

[0009] The probe body is fitted with ring-shaped electrodes B, N, M and A in sequence from the lower end to the upper end;

[0010] Electrodes B and A are symmetrically arranged with respect to the center point of the probe body, as are electrodes N and M.

[0011] Preferred:

[0012] The outer layer of the probe body is made of corrosion-resistant PVC pipe;

[0013] The middle layer of the probe body is a copper foil shielding layer;

[0014] The inside of the probe body is a hollow cable routing channel.

[0015] Preferred:

[0016] The signal lines for electrodes B, N, M, and A are each set up independently within the wiring channel.

[0017] Preferred:

[0018] The data acquisition unit includes: a potential measurement system and a piezometer signal conversion system;

[0019] The vibrating wire piezometer is electrically connected to the piezometer signal conversion system;

[0020] The N and M electrodes are electrically connected to the potential measurement system.

[0021] Preferred:

[0022] The data acquisition unit has a built-in dual-channel ADC module for signal acquisition.

[0023] Preferred:

[0024] The power supply module is electrically connected to electrodes A and B.

[0025] Preferably, a host computer is also included;

[0026] The host computer is electrically connected to the data acquisition unit.

[0027] This utility model has the following beneficial effects:

[0028] By integrating the probe body, vibrating wire piezometer, B electrode, N electrode, M electrode, and A electrode into a single probe, it can simultaneously achieve "leakage location + dynamic quantification of seepage + water level measurement," providing real-time and accurate three-dimensional seepage channel coordinates and offering more comprehensive early warning indicators for dam safety. Attached Figure Description

[0029] Figure 1 A structural diagram of a dam piping, seepage, and seepage line monitoring instrument;

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0032] Reference Figure 1 This utility model provides a monitoring instrument for piping, seepage, and seepage lines in dams, comprising:

[0033] Integrated probe, data acquisition unit, and power supply module;

[0034] The power supply module is electrically connected to the integrated probe, and the integrated probe is electrically connected to the data acquisition unit.

[0035] As one example:

[0036] The integrated probe includes: probe body, vibrating wire piezometer, B electrode, N electrode, M electrode and A electrode;

[0037] The vibrating wire piezometer is connected to the lower end of the probe body;

[0038] The probe body is fitted with ring-shaped electrodes B, N, M and A in sequence from the lower end to the upper end;

[0039] Electrodes B and A are symmetrically arranged with respect to the center point of the probe body, as are electrodes N and M.

[0040] Specifically, the integrated probe structure combines a piezometer and an electrical resistivity tomography (ERT) instrument into a single device for monitoring piping and seepage in earth-rock dams, as well as a water level monitoring instrument. Physically, this integrates the two devices, breaking down the barriers between their independent operation. From top to bottom, the probe consists of the ERT electrode coil and the piezometer unit, with the electrode and piezometer signal lines routed through independent channels.

[0041] As one example:

[0042] The outer layer of the probe body is made of corrosion-resistant PVC pipe;

[0043] The middle layer of the probe body is a copper foil shielding layer;

[0044] The inside of the probe body is a hollow cable routing channel.

[0045] Specifically, the main body of the probe:

[0046] Material: The outer layer is made of corrosion-resistant PVC pipe (diameter 40mm, length 125cm, wall thickness 3mm).

[0047] Outer layer: Annular stainless steel electrodes (material to be determined, diameter 2mm, spacing 0.4m), which are in direct contact with the formation through openings in the outer wall.

[0048] Intermediate layer: Copper foil shielding layer (0.1mm thick), grounded to block external electromagnetic interference.

[0049] The lower part: The vibrating wire piezometer (model YZSY100) is fixed to the axial center line of the probe and is isolated from the electrode by a silicone filling layer.

[0050] As one example:

[0051] The signal lines for electrodes B, N, M, and A are each set up independently within the wiring channel.

[0052] Specifically, the internal wiring channels are as follows: the electrode wires and the piezometer signal lines are routed through independent channels symmetrically distributed inside the probe to avoid cross-interference.

[0053] As one example:

[0054] The data acquisition unit includes: a potential measurement system and a piezometer signal conversion system;

[0055] The vibrating wire piezometer is electrically connected to the piezometer signal conversion system;

[0056] The N and M electrodes are electrically connected to the potential measurement system.

[0057] Specifically, based on the aforementioned earth-rock dam piping and seepage channel and water level monitoring device, a system integrating the output signals of two sensors was developed. Its features include the use of an STM32 microcontroller and an ADC module, and the setting of a clock module to simultaneously receive and process the analog signal from the piezometer and the digital signal from the electrical resistivity instrument at a specific frequency, and then connect them to a computer for processing.

[0058] As one example:

[0059] The data acquisition unit has a built-in dual-channel ADC module for signal acquisition.

[0060] Specifically, the main control chip of the data acquisition unit is an STM32F407 microcontroller with a built-in dual-channel ADC module.

[0061] Synchronization logic:

[0062] The ERT high-voltage power supply module (output voltage 0-200V) and the piezometer power supply module operate in a time-sharing manner, with the timing controlled by MOSFET switches.

[0063] A GPS module (ublox NEO-M8N) was used to generate a unified timestamp for the data, with an error of <1ms.

[0064] Communication interface: Supports RS485 and LoRa wireless transmission, and is compatible with Modbus protocol.

[0065] As one example:

[0066] The power supply module is electrically connected to electrodes A and B.

[0067] Specifically, the power supply module uses a lithium-ion battery pack (12V / 20Ah) to provide isolated power to the ERT and piezometer via a DC-DC converter.

[0068] As one example,

[0069] It also includes the host computer;

[0070] The host computer is electrically connected to the data acquisition unit.

[0071] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0072] The sequence numbers of the above-described embodiments of this utility model are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. In the unit claims listing several devices, these devices may be embodied by the same hardware item. The use of the terms "first," "second," and "third," etc., does not indicate any order and can be interpreted as identifiers.

[0073] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dam piping and phreatic line monitor, characterized by, include: Integrated probe, data acquisition unit, and power supply module; The power supply module is electrically connected to the integrated probe, and the integrated probe is electrically connected to the data acquisition unit; The integrated probe includes: probe body, vibrating wire piezometer, B electrode, N electrode, M electrode and A electrode; The vibrating wire piezometer is connected to the lower end of the probe body; The probe body is fitted with ring-shaped electrodes B, N, M and A in sequence from the lower end to the upper end; Electrodes B and A are symmetrically arranged with respect to the center point of the probe body, as are electrodes N and M.

2. The monitoring instrument for piping, seepage, and seepage lines in dams according to claim 1, characterized in that: The outer layer of the probe body is made of corrosion-resistant PVC pipe; The middle layer of the probe body is a copper foil shielding layer; The inside of the probe body is a hollow cable routing channel.

3. The monitoring instrument for dam piping, seepage, and seepage lines according to claim 2, characterized in that: The signal lines for electrodes B, N, M, and A are each set up independently within the wiring channel.

4. The monitoring instrument for piping, seepage, and seepage lines in dams according to claim 1, characterized in that: The data acquisition unit includes: a potential measurement system and a piezometer signal conversion system; The vibrating wire piezometer is electrically connected to the piezometer signal conversion system; The N and M electrodes are electrically connected to the potential measurement system.

5. The monitoring instrument for piping, seepage, and seepage lines in dams according to claim 4, characterized in that: The data acquisition unit has a built-in dual-channel ADC module for signal acquisition.

6. The monitoring instrument for piping, seepage, and seepage lines in dams according to claim 1, characterized in that: The power supply module is electrically connected to electrodes A and B.

7. The embankment seepage and phreatic line monitor of claim 1, wherein, It also includes the host computer; The host computer is electrically connected to the data acquisition unit.

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