CN202081412U - L-shaped drainage structure of ash yard - Google Patents
L-shaped drainage structure of ash yard Download PDFInfo
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- CN202081412U CN202081412U CN201120191613XU CN201120191613U CN202081412U CN 202081412 U CN202081412 U CN 202081412U CN 201120191613X U CN201120191613X U CN 201120191613XU CN 201120191613 U CN201120191613 U CN 201120191613U CN 202081412 U CN202081412 U CN 202081412U
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- dam
- slope
- drainage
- ash
- permeable formation
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Abstract
The utility model discloses an L-shaped drainage structure of an ash yard, which includes a drainage body laid from slope toe to slope top in an upstream dam slope, a dam bottom blind ditch and a drainage prism at a slope angle of a downstream dam slope, wherein the drainage body is connected with the drainage prism through the dam bottom blind ditch. The utility model has the advantages that, firstly, engineering workload is saved and cost is reduced; secondly, the drainage body of the upstream dam slope adopts surface discharge seepage, the discharge seepage speed is accelerated and the discharge seepage effect is excellent; thirdly, as the drainage body is laid from slope toe to slope top along the upstream dam slope, for the water in the reservoir area, the drainage body can timely receives and drains the water at any level or the water in the grey body adjacent to the dam body; fourthly, the drainage body is simple and easy to construct as the drainage body of the upstream dam slope is based on the upstream dam slope of a primary dam; and fifthly, as three-time inverse filtering effectively blocks ash, the seepage prevention effect is excellent.
Description
Technical field
The utility model relates to a kind of discharge structure, particularly relates to a kind of L type discharge structure that is used for ash disposal area.
Background technology
The steam power station is a fuel with the coal, produces lime-ash behind the coal combustion, and the lime-ash that is not fully utilized is generally concentrated and stacked, and the place of stacking lime-ash claims ash disposal area.Ash disposal area should be chosen in uncultivated mountain valley, builds initial dam at the mouth of a valley, forms the storage capacity of depositing lime-ash.In order to save investment, adopt piecemeal construction by stages, the later stage builds a dam based on heap ash before the initial dam dam, increases step by step.
Ash disposal area is when depositing lime-ash, and the flood that rainwater, mountain valley are compiled or the buck of hydraulic(-ash) sluicing also enter Hui Chang, leaves in the ash field, and drains by drainage system.When initial dam was permeable dike, the charge for remittance before the initial dam dam in the heap grey body can ooze by permeable dike.But be subjected to condition restriction such as local material sometimes, when initial dam was selected waterproof dam, the charge for remittance of heap in the grey body can not be drained before the initial dam dam, and ponding is more before the dam, be unfavorable for the dam before lime-ash fixed; Lime-ash is in full water state before the dam, and intensity is low, and structure is looser, becomes the hidden danger that sub-dam of later stage is increased.Therefore, the problem one that faces is how the water in the grey body before the dam in time to be drained, and when problem two should be guaranteed draining, lime-ash can not taken away.
At present, when the ash disposal area initial dam is selected waterproof dam, generally adopt the steel concrete drainage system.This system is made up of the draining shaft of steel concrete and the gutter of level, slots on vertical shaft or punches, and an ash interior water is by in groove or the hole inflow vertical shaft, and the gutter by level is discharged to ash outside the venue again.But there is following shortcoming in the steel concrete drainage system: 1, the rhone of steel concrete drainage system vertical shaft or hole can the shutoff with the rising of red dog, so vertical shaft can only the above water of ash discharge face; Again because take all factors into consideration various conditions, the position of first vertical shaft can only as close as possible initial dam before the dam, but and have a segment distance between the initial dam; The minimum rhone of vertical shaft or hole will be higher than nature ground 0.5m at least; Therefore the drainage effect of vertical shaft is restricted, and can not in time drain completely for the part water in the heap grey body before the dam.Drainage by shaft wells belongs to the point type draining, and drainage effect is restricted; 2, in the ash process that interior water is drained, directly flow in the vertical shaft by groove or hole, can not avoid buck to take away fine grain ash, buck pollutes environment.
The utility model content
The purpose of this utility model is to provide a kind of ash disposal area L type discharge structure.
The purpose of this utility model is implemented by following technical scheme, a kind of ash disposal area L type discharge structure, it includes the drainage prism that is laid on french drain and downstream dam slope slope angle at the bottom of the water discharging body of waterproof dam upstream dam slope from toe to slope top, the dam, and described water discharging body links to each other with described drainage prism by french drain at the bottom of the described dam.
French drain has included bottom permeable formation and top layer permeable formation at the bottom of described water discharging body and the described dam,
The bottom of described bottom permeable formation, side and top all are surrounded by geotextiles, and the described geotextiles upper strata at described bottom permeable formation top is equipped with described top layer permeable formation.
The main body of described drainage prism is an enrockment, and the upstream of described enrockment is domatic to be equipped with the two-layer permeable formation that is separated by described geotextiles.
Described bottom permeable formation, described top layer permeable formation or described permeable formation are made of sandy gravel.
The effect that is laid on the water discharging body of waterproof dam upstream dam slope from toe to the top, slope is a charge for remittance of taking in the reservoir area, french drain is the drainage channel of L type discharge structure at the bottom of the dam, be arranged at the bottom of the dam, the upstream links to each other with toe place water discharging body, the downstream links to each other with drainage prism, the architectural feature of french drain at the bottom of upstream dam slope water discharging body and the dam: inside is to be made of transmission coefficient higher material such as sandy gravel, the outsourcing geotextiles, cover sand cobble above the geotextiles, its principle be at the bottom of water discharging body and the dam french drain constituent material sandy gravel transmission coefficient greater than the transmission coefficient of lime-ash, for the charge for remittance of reservoir area, can in time take in, drain; The geotextiles transmission coefficient is higher, can play reverse filter effect in the time of permeable, blocks lime-ash; The sandy gravel that geotextiles covers above plays the effect of protection geotextiles.The drainage prism at dam slope slope angle place, downstream is the outlet of L type discharge structure; be positioned at downstream dam slope toe; its effect is draining and stable slope angle; its architectural feature: main body is to be made of enrockment; the upstream dam slope cover sand cobble of enrockment; shop, sandy gravel top geotextiles; cover sand cobble again above the geotextiles; its principle: drainage prism constituent material transmission coefficient is higher; can reach drainage requirement; water flows out from the stone of drainage prism, and good stability plays a protective role to the downstream toe on waterproof dam.
The geotextiles that french drain, drainage prism outer surface have all wrapped up reverse filter effect at the bottom of upstream dam slope water discharging body, the dam plays the effect that stops lime-ash.Wherein, water discharging body upper surface parcel geotextiles is filtered when entering water discharging body for the charge for remittance of reservoir area, plays the effect that stops lime-ash for the first time; The geotextiles that the water discharging body soffit is laid is filtered when entering french drain for the water in the water discharging body, plays the effect that stops lime-ash for the second time; Drainage prism upper surface parcel geotextiles is filtered when entering drainage prism for the water in the french drain, plays the effect that stops lime-ash for the third time; Triple anti-filters effectively stop lime-ash, good seepage-proof property.Overcome traditional row and ooze the full connected mode that connects of structure, a place is leaky, and row is oozed the weakness that the interception function of system promptly lost efficacy.
Advantage of the present utility model is, 1, save engineering quantity, reduce cost; 2, overcome vertical drain system point type and arrange, the weakness that local row is oozed, the upstream dam slope water discharging body oozes for face formula row, accelerates row's infiltration rate degree, and water seepage drainage effect is good; 3, water discharging body is provided with to the top, slope along upstream dam slope from toe, and for the charge for remittance of reservoir area, no matter be the charge for remittance that is positioned at different level, or near the water in the grey body of dam body, water discharging body can in time be taken in, drain; 4, the upstream dam slope water discharging body relies on the initial dam upstream dam slope, and it is simple to construct; 5, triple anti-filters effectively stop lime-ash, and good seepage-proof property overcomes traditional row and oozes the full connected mode that connects of structure, and a place is leaky, and row is oozed the weakness that the interception function of system promptly lost efficacy.
Description of drawings
Fig. 1 is a kind of ash disposal area L type discharge structure schematic diagram.
Fig. 2 is a french drain structural representation at the bottom of water discharging body in the ash disposal area L type discharge structure and the dam.
Fig. 3 is the drainage prism structural representation in the ash disposal area L type discharge structure.
Water discharging body 1, waterproof dam 2, drainage prism 3, french drain 4 at the bottom of the dam, water discharging body geotextiles 5, water discharging body top layer sand pebble layer 6, water discharging body bottom sand pebble layer 7, sand pebble layer 8, enrockment 9, drainage prism geotextiles 10, french drain geotextiles 11 at the bottom of the dam, french drain bottom sand pebble layer 12 at the bottom of the dam, french drain top layer sand pebble layer 13 at the bottom of the dam.
The specific embodiment
Embodiment 1: a kind of ash disposal area L type discharge structure, and it includes the drainage prism 3 that is laid on french drain 4 and downstream dam slope slope angle at the bottom of the water discharging body 1 of waterproof dam 2 upstream dam slopes from toe to slope top, the dam, and water discharging body 1 links to each other with drainage prism 3 by french drain 4 at the bottom of the dam.Water discharging body 1 includes water discharging body bottom sand pebble layer 7 and water discharging body top layer sand pebble layer 6, bottom, side and the top of water discharging body bottom sand pebble layer 7 all are surrounded by water discharging body geotextiles 5, and water discharging body geotextiles 5 upper stratas at water discharging body bottom sand pebble layer 7 tops are equipped with water discharging body top layer sand pebble layer 6.French drain 4 includes at the bottom of the dam french drain top layer sand pebble layer 13 at the bottom of the french drain bottom sand pebble layer 12 and dam at the bottom of the dam, bottom, side and the top of french drain bottom sand pebble layer 12 all are surrounded by french drain geotextiles 11 at the bottom of the dam at the bottom of the dam, at the bottom of the dam at the bottom of the dam at french drain bottom sand pebble layer 12 tops french drain geotextiles 11 upper stratas be equipped with french drain top layer sand pebble layer 13 at the bottom of the dam.The main body of drainage prism 3 is an enrockment 9, and the upstream of enrockment 9 is domatic to be equipped with the two-layer sand pebble layer 8 that is separated by drainage prism geotextiles 10.
Claims (4)
1. ash disposal area L type discharge structure, it is characterized in that, it includes the drainage prism that is laid on french drain and downstream dam slope slope angle at the bottom of the water discharging body of waterproof dam upstream dam slope from toe to slope top, the dam, and described water discharging body links to each other with described drainage prism by french drain at the bottom of the described dam.
2. a kind of ash disposal area L type discharge structure according to claim 1, it is characterized in that, french drain has included bottom permeable formation and top layer permeable formation at the bottom of described water discharging body and the described dam, the bottom of described bottom permeable formation, side and top all are surrounded by geotextiles, and the described geotextiles upper strata at described bottom permeable formation top is equipped with described top layer permeable formation.
3. a kind of ash disposal area L type discharge structure according to claim 1 is characterized in that the main body of described drainage prism is an enrockment, and the upstream of described enrockment is domatic to be equipped with the two-layer permeable formation that is separated by described geotextiles.
4. according to claim 2 or 3 described a kind of ash disposal area L type discharge structures, it is characterized in that described bottom permeable formation, described top layer permeable formation or described permeable formation are made of sandy gravel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120191613XU CN202081412U (en) | 2011-05-31 | 2011-05-31 | L-shaped drainage structure of ash yard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120191613XU CN202081412U (en) | 2011-05-31 | 2011-05-31 | L-shaped drainage structure of ash yard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202081412U true CN202081412U (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120191613XU Expired - Fee Related CN202081412U (en) | 2011-05-31 | 2011-05-31 | L-shaped drainage structure of ash yard |
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| Country | Link |
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| CN (1) | CN202081412U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758417A (en) * | 2012-07-30 | 2012-10-31 | 黄海宽 | Method for water control and farmland building for environmental protection through water and soil separation and water and soil separation structure |
| CN103590483A (en) * | 2013-11-23 | 2014-02-19 | 中国能源建设集团广东省电力设计研究院 | Coal water collecting system for hardening coal unloading yard ground of coal-fired power plant |
| CN108035318A (en) * | 2017-12-28 | 2018-05-15 | 中国葛洲坝集团第二工程有限公司 | The construction method of the dam body water draining structure of homogeneous earth dam |
-
2011
- 2011-05-31 CN CN201120191613XU patent/CN202081412U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758417A (en) * | 2012-07-30 | 2012-10-31 | 黄海宽 | Method for water control and farmland building for environmental protection through water and soil separation and water and soil separation structure |
| CN102758417B (en) * | 2012-07-30 | 2016-01-13 | 黄海宽 | A kind of water and soil is separated the method for environmental protection and the water and soil isolating construction thereof of building up fields of harnessing the river |
| CN103590483A (en) * | 2013-11-23 | 2014-02-19 | 中国能源建设集团广东省电力设计研究院 | Coal water collecting system for hardening coal unloading yard ground of coal-fired power plant |
| CN103590483B (en) * | 2013-11-23 | 2016-06-15 | 中国能源建设集团广东省电力设计研究院有限公司 | Coal-burning power plant's hardening is unloaded coal the coal water collection system of square ground |
| CN108035318A (en) * | 2017-12-28 | 2018-05-15 | 中国葛洲坝集团第二工程有限公司 | The construction method of the dam body water draining structure of homogeneous earth dam |
| CN108035318B (en) * | 2017-12-28 | 2019-12-13 | 中国葛洲坝集团第二工程有限公司 | Construction method of dam body drainage structure of homogeneous earth dam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: INNER MONGOLIA ELECTRIC POWER SURVEY DESIGN INSTIT Free format text: FORMER NAME: INNER MONGOLIA ELECTRICAL POWER INVESTIGATE AND DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 010020 the Inner Mongolia Autonomous Region Hohhot City Xilin Road No. 209 Patentee after: INNER MONGOLIA ELECTRIC POWER SURVEY & DESIGN INSTITUTE CO., LTD. Address before: 010020 the Inner Mongolia Autonomous Region Hohhot City Xilin Road No. 209 Patentee before: Inner Mongolia Electric Power Survey Design Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20200531 |