CN2374580Y - Discharge and pressure detecting dual-purpose tube of anti-percolation film under dam - Google Patents
Discharge and pressure detecting dual-purpose tube of anti-percolation film under dam Download PDFInfo
- Publication number
- CN2374580Y CN2374580Y CN 99212682 CN99212682U CN2374580Y CN 2374580 Y CN2374580 Y CN 2374580Y CN 99212682 CN99212682 CN 99212682 CN 99212682 U CN99212682 U CN 99212682U CN 2374580 Y CN2374580 Y CN 2374580Y
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- tube
- water
- pressure detecting
- dam
- water outlet
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Abstract
The utility model relates to a discharge and pressure detecting dual-purpose tube of an anti-percolation film under a dam, which is composed of a water collection tube, a water output pressure detecting tube and a water pump, wherein, the water output pressure detecting tube can be connected with the water collection tube through a connection tube; the water pump is arranged in the water output pressure detecting tube; the water pump is connected with a water output tube. Consequently, the utility model has the advantages of reasonable structural design, convenient use, convenient and reliable installation, effective prevention of bulge of the composite membrane, broad application, etc.
Description
The utility model relates to the dual-purpose pipe of a kind of draining pressure measurement, the dual-purpose pipe of draining pressure measurement under particularly a kind of seepage control of dam film, and it mainly is applicable to the occasion that prevents that reservoir level when landing antiseepage film is heaved by back-pressure to tear.
In recent years, composite geo-membrane is increasingly extensive as the application of dam dam face seepage material in hydraulic engineering, in October, 1998, Chinese Water Conservancy cloth promulgated by the ministries or commissions of the Central Government " Hydraulic and Hydro-Power Engineering Technical code for application of geosynthetics ", in order to prevent that reservoir level when landing antiseepage composite membrane is heaved by back-pressure, above-mentioned " standard " spelt out the necessity that the draining depressurized system is set under the film.But at present, for new construction, can pre-buried gutter in dam body, water is drained; But for the stabilization works of getting rid of the danger of building dam, owing to can't pass old dam body and bury underground, so often at the bottom of the dam, lay the header of gutter to dam abutment during design along axis of dam direction, structure as shown in Figure 1, this header 1 ' make by steel pipe, the surface have hole 2 ', the permeable geotextiles 3 of outsourcing ', seepage water can enter in the pipe from the tube wall of steel pipe drains again.And can only dig a water discharge tunnel respectively along massif portion at dam abutment, and the water in the header is entered in the tunnel, drain then; But because the tunnel construction duration is longer, expense is higher, and this just makes applying of antiseepage composite membrane dam facing technology be restricted.Some engineering even can the draining depressurized system be set because funds are too high, result cause antiseepage composite membrane pressurized to heave and tear, and have caused great loss for the country and people's lives and properties.
The purpose of this utility model is to overcome existing above-mentioned deficiency in the prior art, and provide a kind of reasonable in design, simple, cost is low, the dual-purpose pipe of draining pressure measurement under the service-strong seepage control of dam film.
The purpose that the utility model proposed can be achieved through the following technical solutions: the dual-purpose pipe of this draining pressure measurement comprises header, its architectural feature is also to be provided with water outlet piezometer tube and water pump, the water outlet piezometer tube can link to each other with header by taking over, water pump is arranged in the water outlet piezometer tube, and outlet pipe is installed on water pump.
The said water pump of the utility model is a micro pump, and it can be fixed in the water outlet piezometer tube, also can be placed in the water outlet piezometer tube, is determined as the case may be by the user.
The utility model compared with prior art has the following advantages and effect: 1, reasonable in design, can prevent effectively that composite membrane from heaving, and for country has reduced loss, and make the people's life obtain guarantee; 2, use, easy installation and reliable needs only at the scene and can use after the installation, and is applied widely simultaneously, can be widely used in the seepage control project of medium and small reservoir dam facing; 3, cost is low, makes simple, easy to utilize.
Description of drawings is as follows:
Fig. 1 is the structural representation of header in the prior art.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is a user mode schematic diagram of the present utility model.
Following the utility model will be described in further detail in conjunction with the accompanying drawings and by embodiment.
Referring to Fig. 2, the utility model mainly is made up of header 1, water outlet piezometer tube 4 and water pump 5, and water outlet piezometer tube 4 can link to each other with header 1 by taking over 7; Wherein header 1 can be made with steel pipe, and the surface is equipped with hole 2, and the permeable geotextiles 3 of outsourcing can enter in the header 1 percolating water by tube wall; Water outlet piezometer tube 4 then can be made of common steel tube, does not punch on tube wall; Water pump 5 is a micro pump, and it both can be fixedly mounted in the water outlet piezometer tube 4, also can be placed in the water outlet piezometer tube 4, with convenient maintenance; On water pump 5, also be connected with outlet pipe 6, so that draining.
Referring to Fig. 3, during use, the utility model can be installed at the scene, after header 1 passed dam abutment steel concrete teeth groove 8, link to each other with water outlet piezometer tube 4 by taking over 7, then along near massif dam facing or the dam abutment lay to dam crest with high, require to be convenient to water level in the measuring tube by certain gradient lay; The diameter of water outlet piezometer tube 4 is not less than 15 centimetres, can record hydrostatic level in the pipe with universal meter, and the average height of phreatic line under hence one can see that the road antiseepage composite membrane has also just been known the anti-seepage effect of antiseepage composite membrane.When reservoir level lands, be higher than reservoir level as water level in the pipe of measuring, then point out the antiseepage composite membrane to be subjected to back-pressure, need to open pump 5 this moment and draw water, to reduce back-pressure, prevent that effectively the antiseepage composite membrane from heaving.
In addition, the utility model take over 7 with water outlet piezometer tube 4 between can be connected one as required again and manage 9, to adapt to special circumstances; Certainly, also configurable automatic pipe water level of the utility model and reservoir level measurement system can draw water when meeting back-pressure automatically, have guaranteed that effectively the antiseepage composite membrane can not be subjected to big back-pressure.
Claims (2)
1, the dual-purpose pipe of draining pressure measurement under a kind of seepage control of dam film, comprise header, it is characterized in that: also be provided with water outlet piezometer tube (4) and water pump (5), water outlet piezometer tube (4) can link to each other with header (1) by taking over (7), water pump (5) is arranged in the water outlet piezometer tube (4), and on water pump (5) outlet pipe (6) is installed.
2, the dual-purpose pipe of draining pressure measurement as claimed in claim 1, it is characterized in that: described water pump (5) is a micro pump, and it can be fixed in the water outlet piezometer tube (4), also can be placed in the water outlet piezometer tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99212682 CN2374580Y (en) | 1999-05-28 | 1999-05-28 | Discharge and pressure detecting dual-purpose tube of anti-percolation film under dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99212682 CN2374580Y (en) | 1999-05-28 | 1999-05-28 | Discharge and pressure detecting dual-purpose tube of anti-percolation film under dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2374580Y true CN2374580Y (en) | 2000-04-19 |
Family
ID=34005307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99212682 Expired - Fee Related CN2374580Y (en) | 1999-05-28 | 1999-05-28 | Discharge and pressure detecting dual-purpose tube of anti-percolation film under dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2374580Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706354B (en) * | 2009-11-16 | 2011-04-20 | 河海大学 | Method for detecting anti-seepage effect of anti-seepage film |
| CN102535399A (en) * | 2012-03-20 | 2012-07-04 | 水利部交通运输部国家能源局南京水利科学研究院 | Decompression device of under-membrane reverse pressure of impermeable geo-membrane at reservoir bottom of plain reservoir |
| CN114894234A (en) * | 2022-03-30 | 2022-08-12 | 泰州学院 | Dam osmotic pressure seepage flow monitoring devices for hydraulic engineering |
-
1999
- 1999-05-28 CN CN 99212682 patent/CN2374580Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706354B (en) * | 2009-11-16 | 2011-04-20 | 河海大学 | Method for detecting anti-seepage effect of anti-seepage film |
| CN102535399A (en) * | 2012-03-20 | 2012-07-04 | 水利部交通运输部国家能源局南京水利科学研究院 | Decompression device of under-membrane reverse pressure of impermeable geo-membrane at reservoir bottom of plain reservoir |
| CN102535399B (en) * | 2012-03-20 | 2013-12-18 | 水利部交通运输部国家能源局南京水利科学研究院 | Decompression device of under-membrane reverse pressure of impermeable geo-membrane at reservoir bottom of plain reservoir |
| CN114894234A (en) * | 2022-03-30 | 2022-08-12 | 泰州学院 | Dam osmotic pressure seepage flow monitoring devices for hydraulic engineering |
| CN114894234B (en) * | 2022-03-30 | 2024-02-20 | 泰州学院 | Dam osmotic pressure seepage flow monitoring device for hydraulic engineering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |