CN211978740U - Protective film damage point accurate positioning system for refuse landfill - Google Patents
Protective film damage point accurate positioning system for refuse landfill Download PDFInfo
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- CN211978740U CN211978740U CN201922240658.0U CN201922240658U CN211978740U CN 211978740 U CN211978740 U CN 211978740U CN 201922240658 U CN201922240658 U CN 201922240658U CN 211978740 U CN211978740 U CN 211978740U
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- protective film
- electric rod
- refuse landfill
- landfill
- electric
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- 230000001681 protective effect Effects 0.000 title claims abstract description 53
- 230000006378 damage Effects 0.000 title claims abstract description 15
- 230000005684 electric field Effects 0.000 claims abstract description 13
- 239000002689 soil Substances 0.000 claims abstract description 8
- 238000005553 drilling Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 239000010813 municipal solid waste Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a protective film damage point accurate positioning system for refuse landfill relates to refuse landfill protective film, its characterized in that: the positioning system comprises a drill hole arranged in soil mass on the outer side of the protective film, a first electric rod arranged in the drill hole, a second electric rod arranged on the inner side of the protective film and a plurality of measuring sensors, wherein the first electric rod and the second electric rod are respectively connected with a measuring host, and a power supply is used for supplying power to the first electric rod and the second electric rod so as to establish an electric field. The utility model has the advantages of detection cycle is short, with low costs, full coverage, can the position of the damaged point of accurate positioning landfill protective film.
Description
Technical Field
The utility model relates to a refuse landfill keeps apart protective screen integrity detection area, concretely relates to protective film damage point accurate positioning system for refuse landfill.
Background
Along with the industrial development of China, urbanization is continuously promoted, and the generation amount of municipal domestic waste and industrial solid waste is increased year by year. The landfill method is a main method for treating garbage in China at present because of the characteristics of less investment, low operation cost, large daily treatment capacity and the like. However, leachate is generated in the landfill during the landfill process and after the landfill is closed, and once the leachate enters the underground environment, a large amount of harmful substances such as toxic and heavy metals are easy to pollute soil and underground water and harm human health. In order to solve the problems, the Ministry of construction issued technical Specification for sanitary landfill of municipal solid waste in 2001, and set the permeability coefficient and thickness index of the protective layer in the landfill, but the corresponding control index value is far lower than the developed national standard. When the protective film at the bottom of the landfill site is constructed, the protective film is damaged due to manual irregular operation, and the situations that pores exist at the seams among the protective films and the like occur occasionally; on the other hand, with the continuous operation of the landfill site, the damage of the protective film caused by uneven settlement of the foundation, chemical corrosion and the like is difficult to avoid. In order to prevent the garbage percolate from leaking and causing environmental pollution. For the landfill site in the initial building stage and operation, the integrity of the protective layer of the landfill site is urgently required to be detected, but a corresponding accurate, nondestructive and rapid detection method is lacked in China at present.
Disclosure of Invention
The utility model aims at providing a weak point positioning system for refuse landfill's protecting film damage according to above-mentioned prior art's weak point, through establishing the electric field in refuse landfill protecting film both sides to observe the inboard electric field distribution condition of protecting film, and then confirm the distribution position of refuse landfill protecting film damage.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the utility model provides a protective film damage point accurate positioning system for landfill, relates to landfill protective film, its characterized in that: the positioning system comprises a drill hole arranged in soil mass on the outer side of the protective film, a first electric rod arranged in the drill hole, a second electric rod arranged on the inner side of the protective film and a plurality of measuring sensors, wherein the first electric rod and the second electric rod are respectively connected with a measuring host, and a power supply is used for supplying power to the first electric rod and the second electric rod so as to establish an electric field.
The vertical distance between the drilling hole and the outer side boundary of the refuse landfill is 1-20 m.
The measuring sensor is arranged above the target positioning area.
The measuring sensors are arranged in an array mode, the transverse distance of each measuring sensor is 0.5-5 m, and the longitudinal distance of each measuring sensor is 0.5-5 m.
And the vertical distance between the measuring sensor and the structural boundary of the refuse landfill is 0-50 m.
The depth of the drilling hole is larger than the arrangement depth of the protective film at the bottom of the refuse landfill.
The utility model has the advantages that: the positioning system can not damage the refuse landfill, has short detection period, low cost and full coverage, and can accurately position the position of the damage point of the protective film of the refuse landfill.
Drawings
Fig. 1 is a schematic view illustrating positioning of a damaged point on a side wall of a protective film of a refuse landfill in an embodiment of the present invention;
fig. 2 is a schematic view of the embodiment of the present invention for positioning the damaged point of the side wall of the protective film in the landfill site.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example with reference to the accompanying drawings, for the understanding of those skilled in the art:
as shown in fig. 1-2, the labels 1-10 in the figures are: the device comprises a soil body 1, a protective film 2, a second electric rod 3, a first electric rod 4, a damage point 5, a drilling hole 6, a measuring sensor 7, a power supply 8, a measuring host 9 and a landfill 10.
The first embodiment is as follows: as shown in fig. 1, the present embodiment specifically relates to an accurate positioning system for a damage point 5 of a protective film 2 for a landfill site, and relates to a landfill site protective film 2, the positioning system includes a drill hole 6 arranged in a soil body 1 outside the protective film 2, first electric rods 4 placed in the drill hole 6 at different depths, second electric rods 3 and a measuring sensor 7 placed inside the protective film 2, a power supply 8 connected with the first electric rods 4 and the second electric rods 3, and a measuring host 9, wherein the vertical distance between the drill hole 6 and the outer boundary of the landfill site is 1-20 meters, and the power supply 8 supplies direct current to the first electric rods 4 and the second electric rods 3 to establish an electric field.
The measuring sensors 7 are arranged above the target positioning area in an array mode, the transverse distance between each measuring sensor 7 is 0.5-5 m, the longitudinal distance between each measuring sensor 7 is 0.5-5 m, and the vertical distance between each measuring sensor 7 and the structural boundary of the refuse landfill is 0-50 m. An electric field value is collected through the measuring sensor 7, if a measured value at a certain position is larger than measured values at other positions on the periphery, or if the measured value at the certain position is different from the measured values on the periphery, the bottom position right below the measured value is judged to be that the damaged point 5 exists at the bottom of the protective film 2, and the measured value is a potential or a potential gradient. The method for accurately positioning the damage point 5 of the protective film 2 of the refuse landfill by utilizing the positioning system comprises the following steps:
(1) arranging a drill hole 6 in the soil body 1 outside the refuse landfill protective film 2, and placing a first electric rod 4 in the drill hole 6;
(2) a second electric rod 3 and a measuring sensor 7 array are arranged on the inner side of the protective film 2 of the refuse landfill, the row distance of each measuring sensor 7 is 2m, the column distance is 1.5m, and the array-type closest distance between the second electric rod 3 and the measuring sensor 7 is 20 m;
(3) supplying direct current to the first electric rod 4 and the second electric rod 3 through a power supply 8, wherein the direct current voltage is 90V, and establishing an electric field;
(4) the first electric rod 4 is placed at different depths above the bottom of the protective film 2, for example, in the first embodiment, the maximum buried depth of the protective film 2 is 9m, the placement depth of the first electric rod 4 is at different depths such as 8m, 6m, 4m, 2m, etc., electric field value observation is performed at each depth, and data records are stored in the measurement host 9;
(5) collecting potential values and current values of different depths through an analysis measuring sensor 7, and vertically projecting the position to the side wall of the protective film 2 if the potential value and the current value at a certain position are larger than those at other positions on the periphery so as to obtain the position of a damaged point 5 on the side wall of the protective film 2;
(6) placing the first electric rod at a position 15m in the drill hole, and supplying 90V direct current to the first electric rod 4 and the second electric rod 3 to establish an electric field;
(7) arranging a measuring sensor 7 array right above a to-be-detected damaged point 5, collecting a potential value and a current value through the measuring sensor 7, and if the potential value and the current value at a certain position are larger than those at other positions on the periphery, judging the bottom of the protective film 2 right below the position as the damaged point 5;
(8) through the steps, the position of the damaged point 5 of the protective film 2 can be accurately determined in a full-coverage mode.
Example two: as shown in fig. 2, the difference between this embodiment and the first embodiment is that the detection parameters are different, and the specific steps are as follows:
(1) arranging a drill hole 6 in a soil body 1 outside the refuse landfill protective film 2, and placing a first electric rod 4 in the drill hole;
(2) a second electric rod 3 and a measuring sensor 7 array are arranged on the inner side of the garbage field, the row spacing of each measuring sensor 7 is 1.5m, the column spacing is 1.5m, and the array-type closest distance between the second electric rod 3 and the measuring sensor 7 is 30m;
(3) supplying direct current to the first electric rod 4 and the second electric rod 3 through a power supply 8, wherein the direct current voltage is 30V, and establishing an electric field;
(4) the first electric rod 4 is placed at different depths above the bottom of the protective film 2, for example, in the first embodiment, the maximum buried depth of the protective film 2 is 6m, the placement depth of the first electric rod 4 is at different depths such as 5m, 4m, 3m, 2m, etc., electric field value observation is performed at each depth, and data records are stored in the measurement host 9;
(5) collecting potential values and current values of different depths through an analysis measuring sensor 7, and vertically projecting the position to the side wall of the protective film 2 if the potential value and the current value at a certain position are larger than those at other positions on the periphery so as to obtain the position of a damaged point 5 on the side wall of the protective film 2;
(6) placing the first electric rod at a position of 11m in the drill hole, and supplying 30V direct current to the first electric rod 4 and the second electric rod 3 to establish an electric field;
(7) arranging a measuring sensor 7 array right above a to-be-detected damaged point 5, collecting a potential value and a current value through the measuring sensor, and if the potential value and the current value at a certain position are larger than those at other positions on the periphery, judging the bottom of the protective film 2 right below the position as the damaged point 5;
(8) through the above steps, the position of the damaged spot 5 on the protective film 2 can be accurately determined in full coverage.
Claims (6)
1. The utility model provides a protective film damage point accurate positioning system for landfill, relates to the protective film of landfill, its characterized in that: the positioning system comprises a drill hole arranged in soil mass on the outer side of the protective film, a first electric rod arranged in the drill hole, a second electric rod arranged on the inner side of the protective film and a plurality of measuring sensors, wherein the first electric rod and the second electric rod are respectively connected with a measuring host, and a power supply is used for supplying power to the first electric rod and the second electric rod so as to establish an electric field.
2. The system for accurately positioning the breakage point of the protective film for the refuse landfill according to the claim 1, wherein: the vertical distance between the drilling hole and the outer side boundary of the refuse landfill is 1-20 m.
3. The system for accurately positioning the breakage point of the protective film for the refuse landfill according to the claim 1, wherein: the measuring sensor is arranged above the target positioning area.
4. The system for accurately positioning the breakage point of the protective film for the refuse landfill according to the claim 1, wherein: the measuring sensors are arranged in an array mode, the transverse distance of each measuring sensor is 0.5-5 m, and the longitudinal distance of each measuring sensor is 0.5-5 m.
5. The system for accurately positioning the breakage point of the protective film for the refuse landfill according to the claim 1, wherein: and the vertical distance between the measuring sensor and the structural boundary of the refuse landfill is 0-50 m.
6. The system for accurately positioning the breakage point of the protective film for the refuse landfill according to the claim 1, wherein: the depth of the drilling hole is larger than the arrangement depth of the protective film at the bottom of the refuse landfill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922240658.0U CN211978740U (en) | 2019-12-14 | 2019-12-14 | Protective film damage point accurate positioning system for refuse landfill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922240658.0U CN211978740U (en) | 2019-12-14 | 2019-12-14 | Protective film damage point accurate positioning system for refuse landfill |
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| Publication Number | Publication Date |
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| CN211978740U true CN211978740U (en) | 2020-11-20 |
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| CN201922240658.0U Active CN211978740U (en) | 2019-12-14 | 2019-12-14 | Protective film damage point accurate positioning system for refuse landfill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113546953A (en) * | 2021-08-05 | 2021-10-26 | 山东中海新科环境技术有限公司 | Process for repairing sewage and soil of refuse landfill |
-
2019
- 2019-12-14 CN CN201922240658.0U patent/CN211978740U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113546953A (en) * | 2021-08-05 | 2021-10-26 | 山东中海新科环境技术有限公司 | Process for repairing sewage and soil of refuse landfill |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Address before: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee before: SGIDI ENGINEERING CONSULTING (Group) Co.,Ltd. |
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| CP03 | Change of name, title or address |