CN115144132A - Storage yard anti-seepage film damage detection device and method - Google Patents
Storage yard anti-seepage film damage detection device and method Download PDFInfo
- Publication number
- CN115144132A CN115144132A CN202210252095.0A CN202210252095A CN115144132A CN 115144132 A CN115144132 A CN 115144132A CN 202210252095 A CN202210252095 A CN 202210252095A CN 115144132 A CN115144132 A CN 115144132A
- Authority
- CN
- China
- Prior art keywords
- detection
- electrode
- electric field
- probe
- storage yard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a device and a method for detecting damage of an anti-seepage film of a storage yard, which comprises a motor, an electrode, a probe, a detection host and an analysis platform, wherein the motor is used for supplying power to an electric field, the electrode is divided into a transmitting electrode and a receiving electrode, the motor for supplying power to the electric field is respectively connected with the transmitting electrode and the receiving electrode through cables, the probe is divided into a positive probe and a negative probe, the positive probe and the negative probe are placed in a detection area between the electrodes to detect voltage or current between any two points, the detection host is connected with the probe through the cables, and data can be transmitted between the detection host and the analysis platform in a wireless or wired mode. Above-mentioned technical scheme is based on bipolar electrode detection seepage principle, sets up transmitting electrode and receiving electrode in the soil outside barrier layer and detection zone respectively, applys voltage between transmitting electrode and receiving electrode, utilizes electric field distribution law to realize the judgement of leakage point, realizes the ability to the damaged accurate detection of storage yard barrier film on a large scale, protects dangerous waste landfill site all ring edge borders.
Description
Technical Field
The invention relates to the technical field of impermeable membrane damage detection, in particular to a storage yard impermeable membrane damage detection device and method.
Background
In order to prevent groundwater from being polluted, such as a landfill, an impermeable lining system is an indispensable facility for the construction of the landfill and has the functions of isolating the inside and the outside of the landfill and controlling leachate to enter clay and groundwater, and an impermeable barrier for the leachate is constructed at the bottom and the periphery of the landfill in an impermeable system project, wherein the construction quality of a geomembrane is related to the success or failure of the whole impermeable project, once the geomembrane has defects, the leachate leaks to cause groundwater pollution, and the consequences are very serious. In terms of a leakage detection method, electrical detection has become a mainstream method for leakage detection during landfill construction and operation, but the reliability and accuracy of the method still need to be improved.
Aiming at the urgent need of the tailing yard, the smelting slag yard, the refuse landfill and the corrosive raw material yard for the detection of the damage of the impermeable membrane, the key technologies such as an alternating current/direct current transmitter, a variable frequency receiver, a geophysical data processing technology, a high-speed embedded real-time processing method and the like based on the double-electrode leakage detection principle need to be researched. For water storage structures such as a wastewater collection pool, an anti-seepage pool and the like, accurate data of a repair scheme can be provided through anti-seepage membrane detection, and the effect of water impermeability of the structures is achieved.
Chinese patent document CN113376700A discloses an "industrial solid waste storage yard leakage area detection observation system". The natural potential measurement is carried out by adopting various observation modes, different electrodes can be used as power supply electrodes, and the measurement modes such as an electric dipole method, a grid electrode method and the like are carried out by utilizing electrodes on and under the film. However, the system cannot record data, the detection device analyzes and compares the measurement results, certain errors still exist, and more accurate prompts cannot be provided for repair personnel to carry out next repair work.
Disclosure of Invention
The invention mainly solves the technical problems of weak accurate detection capability and large positioning point error of the original technical scheme, and provides a storage yard impermeable membrane damage detection device and a storage yard impermeable membrane damage detection method.
The technical problem of the invention is mainly solved by the following technical scheme:
a kind of storage yard seepage-proofing membrane breakage detection device, including:
a motor for applying an inter-electrode voltage;
the transmitting electrode and the receiving electrode are used for constructing an electric field and are respectively connected with the motor;
the probe is used for detecting the electric field change between the electrodes and is connected with the detection host;
the detection host is used for receiving and displaying the probe detection signal and is connected with the analysis platform;
and the analysis platform is used for recording the data and the position of the electric field mutation point so as to assist in repairing the electric field mutation point.
The electrodes are arranged in the soil outside the upper part of the impermeable layer and the detection area, the distance between the electrodes is inversely proportional to the voltage drop under the condition that the impermeable membrane is not damaged, the voltage is reduced to zero volt under the condition that the impermeable membrane is damaged, and the damaged point can be quickly positioned by utilizing the electric field distribution rule; the detection host machine is used for detecting the change of the voltage or the current; and the analysis platform is connected with the detection host in a wireless or wired mode and stores the data mutation quantity of the voltage or the current.
Preferably, an impermeable layer and a detection area are sequentially arranged on the outer side of the storage yard, the transmitting electrode is arranged at the impermeable layer, and the receiving electrode is arranged on the outer side of the detection area. The receiving electrode is an anode and is embedded into clay or slag on the upper layer of the impermeable membrane, the transmitting electrode is a cathode and is placed into solid or liquid below the impermeable membrane through the exhaust hole or the known damaged part, and the sudden change position of voltage or current change is searched in the detection area through the detection host, wherein the sudden change position is a damaged point.
Preferably, the motor comprises an ac or dc inverter motor, and the detection path of the detection host machine is distributed along the electric field formed by the transmitting electrode and the receiving electrode. The anti-seepage film is used as an insulator, no voltage or current is generated under a normal state, so that an electric field is disconnected, and the electric field is conducted under the condition that leakage occurs, and the judgment of a leakage point can be realized by utilizing an electric field distribution rule.
A working method of a storage yard impermeable membrane breakage detection device comprises the following steps:
s1, selecting a motor and testing detection sensitivity;
s2, planning a detection area;
s3, setting a detection path according to a detection area planning result;
s4, the detection host acquires detection data along a detection path;
and S5, recording the detection data by the analysis platform, generating a plan view and sending out a maintenance signal of the electric field catastrophe point.
Preferably, in the step S1, according to different storage yards and different conductivities of the impermeable layer base layer, when starting detection, an alternating current or direct current motor is selected, and power supply voltage is adjusted to perform current adaptation adjustment, so as to test the sensitivity of the detection host. Because the conductivity of different storage yards and impermeable layer base layers is different, when the detection is started, an alternating current or direct current motor is properly selected, and the power supply voltage is adjusted so as to obtain proper current and test the sensitivity of the detection host machine.
Preferably, the step S2 specifically includes:
s2.1, firstly, determining a detection area according to the terrain and the electric field range;
s2.2, testing the conduction condition of the detection area;
and S2.3, dividing the detection area into a plurality of monitoring units according to the internal topography and the conductive condition of the detection area.
Due to different detection objects, before the detection is started, the size of the area detected each time should be reasonably planned so as to reduce the precision loss caused by factors such as terrain, area and the like.
Preferably, in step S2.1, the transmitting electrode and the receiving electrode are respectively taken as a circle center a and a circle center B, the distance between the transmitting electrode and the receiving electrode is taken as a radius r, the transmitting electrode is taken as a circle center a, the receiving electrode is taken as a circle center B, and the radius r is taken as a circle, the overlapped part of the two circles is taken as an electric field action range, the terrain which cannot be detected in the electric field action range is removed, and the rest part is taken as a detection area. And after removing undetectable terrains such as rocks existing in the action range of the electric field, dividing remaining areas so as to plan a detection path.
Preferably, in the step S2.2, when the conduction test is performed, if the conduction test effect is not ideal, water is added to the detection area. Water is added to increase the conductivity so as to simulate the conduction condition in a leakage state, and the conduction condition test of the detection area is ensured to be accurate.
Preferably, in the step S4, the probe is placed in the determined detection area, the detection data is sequentially obtained along the detection path, and the detection current and the detection voltage are adjusted in the detection process, or the verification detection is performed in two modes of current and voltage, so as to ensure that the damage point is truly and accurately reflected.
The invention has the beneficial effects that: the application to different scenes can be realized by selectively applying alternating voltage or direct voltage between the electrodes; the detection host has high sensitivity, so that the detection precision is high; the system has continuous self-checking test, can monitor the working state of the equipment in real time, and can transmit the state of each facility in the system to a pipeline monitoring workstation for monitoring; the mode of the mobile detection host is adopted, so that the flexibility and efficiency of detection are greatly improved, and the whole system is advanced in performance, convenient to operate and stable in operation.
Drawings
Fig. 1 is a block diagram showing the configuration of a breakage detection device according to the present invention.
FIG. 2 is a diagram of a detection device arrangement of the present invention.
Fig. 3 is a flow chart of the present invention.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
The embodiment is as follows: the device for detecting damage of the impermeable membrane of the storage yard of the embodiment comprises a motor for electric field power supply, an electrode, a probe, a detection host and an analysis platform, wherein the electrode is divided into a transmitting electrode and a receiving electrode, the electric field power supply motor is respectively connected with the transmitting electrode and the receiving electrode through cables, the probe is divided into a positive probe and a negative probe and is placed in a detection area between the electrodes to detect voltage or current between any two points, the detection host is connected with the probe through the cables, and data can be transmitted between the detection host and the analysis platform in a wireless or wired mode. The motor is used to apply an inter-electrode voltage. The transmitting electrode and the receiving electrode are used to build up an electric field. The probe is used for detecting the electric field change between the electrodes. The detection host is used for receiving the probe detection signal and displaying the probe detection signal. The analysis platform is used for recording the data and the position of the electric field catastrophe point so as to assist in repair.
As shown in fig. 2, an impermeable layer and a detection region are sequentially arranged outside the storage yard, the transmitting electrode is arranged at the impermeable layer, and the receiving electrode is arranged outside the detection region. The receiving electrode is an anode and is embedded into clay or slag on the upper layer of the impermeable membrane, the transmitting electrode is a cathode and is placed into solid or liquid below the impermeable membrane through the exhaust hole or the known damaged part, and the sudden change position of voltage or current change is searched in the detection area through the detection host, wherein the sudden change position is a damaged point. The motor comprises an alternating current or direct current inverter motor, and the detection path of the detection host machine is distributed along an electric field formed by the transmitting electrode and the receiving electrode. The anti-seepage film is used as an insulator, no voltage or current is generated under a normal state, so that an electric field is disconnected, and under the condition that seepage occurs, the electric field is conducted, and the judgment of a seepage point can be realized by utilizing the electric field distribution rule.
A working method of a storage yard impermeable membrane breakage detection device comprises the following steps:
s1, selecting a motor and testing detection sensitivity. According to different conductivity of different storage yards and impermeable layer base layers, when the detection is started, an alternating current or direct current motor is selected, the power voltage is adjusted to carry out current adaptive adjustment, and the sensitivity of the detection host machine is tested. Because the conductivity of different storage yards and impermeable layer base layers is different, when the detection is started, an alternating current or direct current motor is properly selected, and the power supply voltage is adjusted so as to obtain proper current and test the sensitivity of the detection host machine.
And S2, planning a detection area, wherein the size of the area detected each time is reasonably planned before the detection is started due to different detection objects so as to reduce the precision loss caused by factors such as terrain, area and the like. The method specifically comprises the following steps:
s2.1 first determines the detection zone based on the terrain and electric field range. The method comprises the steps of taking a transmitting electrode and a receiving electrode as a circle center A and a circle center B respectively, taking the distance between the transmitting electrode and the receiving electrode as a radius r, taking the transmitting electrode as the circle center A, taking the receiving electrode as the circle center B and taking the radius r as a circle respectively, taking the overlapped part of the two circles as an electric field action range, removing the terrain which cannot be detected in the electric field action range, and taking the rest part as a detection area. And after removing undetectable terrains such as rocks existing in the action range of the electric field, dividing the remaining area so as to plan a detection path.
S2.2, testing the conduction condition of the detection area. When conducting the electric conduction test, if the electric conduction test effect is not ideal then add water to the detection area. Water is added to increase the conductivity so as to simulate the conduction condition in a leakage state, and the conduction condition test of the detection area is ensured to be accurate.
And S2.3, dividing the detection area into a plurality of monitoring units according to the internal topography and the conductive condition of the detection area.
S3, setting a detection path according to a detection area planning result;
and S4, the detection host acquires detection data along the detection path. The probe is placed in a determined detection area, detection data are acquired along a detection path in sequence, detection current and detection voltage are adjusted in the detection process, or the verification detection is carried out in a current mode and a voltage mode so as to ensure that the damaged point is truly and accurately reflected.
And S5, recording the detection data by the analysis platform, generating a plan view and sending out a maintenance signal of the electric field catastrophe point. And continuous self-test tests can be set to monitor the working state of the equipment and transmit the state of each facility in the system to a pipeline monitoring workstation for display and monitoring. The device has a current/voltage sudden change priority prompting and recording function, and records information to a computer system when the existence of damage is found. And the analysis platform records the data and the positions of the current and voltage catastrophe points and provides the data and the positions for repair personnel to carry out the next working procedure.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms electrode, detection host, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to the spirit of the present invention.
Claims (9)
1. The utility model provides a damaged detection device of heap prevention of seepage membrane which characterized in that includes:
a motor for applying an inter-electrode voltage;
the transmitting electrode and the receiving electrode are used for constructing an electric field and are respectively connected with the motor;
the probe is used for detecting the change of the electric field between the electrodes and is connected with the detection host;
the detection host is used for receiving and displaying the probe detection signal and is connected with the analysis platform;
and the analysis platform is used for recording the data and the position of the electric field mutation point so as to assist in repair.
2. The storage yard impermeable membrane breakage detection device according to claim 1, wherein an impermeable layer and a detection zone are sequentially arranged on the outer side of the storage yard, the transmitting electrode is arranged at the impermeable layer, and the receiving electrode is arranged on the outer side of the detection zone.
3. The yard impermeable membrane breakage detection device according to claim 1 or 2, wherein the motor comprises an ac or dc inverter motor, and the detection path of the detection host machine is distributed along the electric field formed by the transmitting electrode and the receiving electrode.
4. The working method of the storage yard impermeable membrane breakage detection device is characterized by comprising the following steps of:
s1, selecting a motor and testing detection sensitivity;
s2, planning a detection area;
s3, setting a detection path according to a detection area planning result;
s4, the detection host acquires detection data along a detection path;
and S5, recording the detection data by the analysis platform, generating a plan view and sending out a maintenance signal of the electric field catastrophe point.
5. The working method of the storage yard impermeable membrane breakage detection device according to claim 4, wherein in the step S1, according to the difference of the conductivity of different storage yards and impermeable layer base layers, when the detection is started, an alternating current or direct current motor is selected, the power supply voltage is adjusted to perform current adaptation adjustment, and the sensitivity of the detection host machine is tested.
6. The working method of the device for detecting the breakage of the impermeable membrane of the storage yard according to claim 4, wherein the step S2 specifically includes:
s2.1, firstly, determining a detection area according to the terrain and the electric field range;
s2.2, testing the conduction condition of the detection area;
and S2.3, dividing the detection area into a plurality of monitoring units according to the internal topography and the conductive condition of the detection area.
7. The operating method of the storage yard impermeable membrane damage detection device according to claim 4, wherein in step S2.1, the transmitting electrode and the receiving electrode are respectively used as a circle center a and a circle center B, the distance between the transmitting electrode and the receiving electrode is used as a radius r, the transmitting electrode is used as the circle center a, the receiving electrode is used as the circle center B, and the radius r is used as a circle, the overlapped part of the two circles is an electric field action range, so that the terrain which cannot be detected in the electric field action range is removed, and the rest part is a detection area.
8. The operating method of the storage yard impermeable membrane breakage detecting device according to claim 6, wherein in the step S2.2, when conducting the conduction test, if the conduction test effect is not ideal, water is added to the detection area.
9. The working method of the storage yard impermeable membrane breakage detection device according to claim 6, wherein step S4 is to place the probe in the determined detection area, sequentially acquire detection data along the detection path, and adjust the detection current and the detection voltage during the detection process, or perform verification detection in both current and voltage modes, so as to ensure that the breakage point is truly and accurately reflected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210252095.0A CN115144132A (en) | 2022-03-15 | 2022-03-15 | Storage yard anti-seepage film damage detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210252095.0A CN115144132A (en) | 2022-03-15 | 2022-03-15 | Storage yard anti-seepage film damage detection device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115144132A true CN115144132A (en) | 2022-10-04 |
Family
ID=83405479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210252095.0A Pending CN115144132A (en) | 2022-03-15 | 2022-03-15 | Storage yard anti-seepage film damage detection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115144132A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116499661A (en) * | 2023-04-23 | 2023-07-28 | 华北有色工程勘察院有限公司 | Device and method for detecting leakage points of vertically paved high-resistance impermeable film |
| CN117721859A (en) * | 2024-02-18 | 2024-03-19 | 水利部交通运输部国家能源局南京水利科学研究院 | System and method for detecting seepage-proofing structure defects and depth in layered soil foundation |
-
2022
- 2022-03-15 CN CN202210252095.0A patent/CN115144132A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116499661A (en) * | 2023-04-23 | 2023-07-28 | 华北有色工程勘察院有限公司 | Device and method for detecting leakage points of vertically paved high-resistance impermeable film |
| CN116499661B (en) * | 2023-04-23 | 2024-01-26 | 华北有色工程勘察院有限公司 | Device and method for detecting leakage points of vertically paved high-resistance impermeable film |
| CN117721859A (en) * | 2024-02-18 | 2024-03-19 | 水利部交通运输部国家能源局南京水利科学研究院 | System and method for detecting seepage-proofing structure defects and depth in layered soil foundation |
| CN117721859B (en) * | 2024-02-18 | 2024-04-30 | 水利部交通运输部国家能源局南京水利科学研究院 | System and method for detecting seepage-proofing structure defects and depth in layered soil foundation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115144132A (en) | Storage yard anti-seepage film damage detection device and method | |
| US4947470A (en) | System for locating leaks in a geomembrane-lined impoundment or landfill filled with material | |
| CN102889967B (en) | Refuse landfill geomembrane seepage rapid detection system and detection method | |
| CN101241092B (en) | Garbage landfill seepage area quick detection device | |
| CN105675237B (en) | Refuse landfill seepage control layer leakage location and detection method | |
| CN101446566A (en) | Method for detecting leaked and damaged position of leakproof geomembrane and device thereof | |
| White et al. | Electrical leak detection system for landfill liners: a case history | |
| US5184083A (en) | Apparatus and method for the location of leaks by arrayed potentials and derived vectors | |
| CN108414159B (en) | Method and device for positioning HDPE (high-density polyethylene) film leakage position by using stress wave | |
| JPH0933382A (en) | Method for detecting leakage position | |
| KR100319646B1 (en) | Device and method for inspection of status of insulating layer or water-preventing layer | |
| KR20090015431A (en) | A section-divided leakage detection method in sanitary landfill using fence type arrangement of electrodes | |
| CN214784229U (en) | Automatic detection system for leakage of anti-seepage system at bottom of refuse landfill | |
| CN116499661B (en) | Device and method for detecting leakage points of vertically paved high-resistance impermeable film | |
| Rollin et al. | A guide to detect leaks on installed geomembranes | |
| CN201051086Y (en) | A quick detection device for leakage detection block of rubbish burying site | |
| KR100285017B1 (en) | Damage Sheet Detection System of Landfill at Landfill | |
| Cadwallader et al. | Post Installation Leak testing of Geomembranes | |
| Calendine et al. | Electric leak detection and leak location on geosynthetic liners in the mining industry | |
| Ng et al. | Electrically conductive geomembrane enhances construction quality assurance at post installation | |
| Lai et al. | Research on Location Method of Vertical HDPE Membrane Leak Point | |
| Zheng et al. | Leak location liner system in environmental containments-China experience | |
| JP2003344210A (en) | Detector and method for detecting water leakage position | |
| CN116482764A (en) | Geophysical prospecting device and landfill permeability detection method | |
| JP3048309B2 (en) | Apparatus and method for detecting breakage of impermeable sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |