CN201598619U - Dam body water draining structure - Google Patents
Dam body water draining structure Download PDFInfo
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- CN201598619U CN201598619U CN2010201026881U CN201020102688U CN201598619U CN 201598619 U CN201598619 U CN 201598619U CN 2010201026881 U CN2010201026881 U CN 2010201026881U CN 201020102688 U CN201020102688 U CN 201020102688U CN 201598619 U CN201598619 U CN 201598619U
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- dam body
- dam
- water draining
- elevation
- rhone
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Abstract
The utility model relates to a dam body water draining structure, aiming at providing a dam body water draining structure with simple and perfect structure and good water draining effect so as to achieve the purposes of reducing the hydraulic gradient generated by a curtain body and reducing uplift pressure of a dam. The technical scheme for solving the problems is as follows: the dam body water draining structure is provided with a dam body and internally provided with a basic gallery, and top part of the dam body is communicated with the basic gallery by water draining pipes which are vertically distributed. The dam body water draining structure is characterized in that a group of water draining holes which are distributed in a sector manner are drilled at the downstream side in the basic gallery; and the lowest height of the water draining hole is higher than the elevation of the basic gallery. The dam body water draining structure is mainly used for various dams.
Description
Technical field
The utility model relates to a kind of dam body discharge structure, mainly is applicable in the various dams.
Background technology
Along with the dam increase of service time, inevitably various seepages can appear, influence the safety of dam, therefore, in order to prevent dam generation seepage, mostly adopt on the engineering at present and earlier block up the method for afterwards arranging, reduce the probability of dam generation seepage, promptly carry out curtain grouting, arrange in the downstream that then drainage system carries out draining at the dam upstream side.The dam body drain hole generally adopts dam crest to be drilled with or the formation of pre-buried vertical drain at present, and is nearer as distance dam body curtain, then the curtain body produced bigger waterpower tonsure, thereby quickens the destruction of curtain, shortens the life-span of curtain.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of perfect, dam body discharge structure that drainage effect is good simple in structure at the problem of above-mentioned existence, reduce waterpower tonsure that the curtain body produces and the purpose that reduces uplift pressure in the dam to reach.
The technical scheme that the utility model adopted is: the dam body discharge structure, has dam body, basic gallery is offered in its inside, the dam body top is communicated with basic gallery by the gutter of vertically arranging, it is characterized in that: be drilled with one group of drain hole that is fan-shaped distribution to the downstream in the described basic gallery, the lowest elevation of drain hole is higher than the elevation of basic gallery.
Described drain hole has 1-3 row, and the elevation angle is the 30-60 degree, and the distance between adjacent each drain hole of every row is 2-3m, and the diameter of drain hole is 110mm-150mm.
Described basic gallery below is drilled with the drainage channel that is communicated with the dam foundation and basic gallery, and the degree of depth that this drainage channel gos deep into the dam foundation is the 0.4-0.6 times of dam foundation curtain degree of depth.
Collector drain is offered in the inner close downstream of described dam body, and is drilled with one group of rhone that is fan-shaped distribution to upstream side in this collector drain, and the lowest elevation of rhone is higher than the elevation of collector drain.
Described rhone is established a row, the elevation angle 30 degree, and the distance between adjacent each rhone is 2.25m, aperture 130mm, and be that the several rows of water holes of 30 degree intersect and link to each other with the elevation angle.
The beneficial effects of the utility model are: the utility model is drilled with one group of drain hole that is fan-shaped distribution to the downstream in basic gallery, dam body percolating water is collected to basic gallery in the dam by fan-shaped drain hole, concentrate discharging, effectively reduce the dam body downstream seepage flow point height that goes out to escape, thereby reduced uplift pressure in the dam, especially at cold district, can effectively solve concrete freeze thawing, problem of frost heave that the dam body seepage causes.
Description of drawings
Fig. 1 is a profile of the present utility model.
The specific embodiment
As shown in Figure 1, present embodiment has dam body 1, basic gallery 2 is offered in its inside, dam body 1 top is communicated with basic gallery 2 by the gutter of vertically arranging 3, be drilled with one group of drain hole 4 that is fan-shaped distribution to the downstream in the described basic gallery 2, the lowest elevation of drain hole 4 is higher than the elevation of basic gallery 2.In this example, this group drain hole 4 has two rows, and wherein a row elevation angle is 30 degree, and another row elevation angle is 60 degree, and each distance of arranging between two adjacent drain holes 4 is 2.25m, and the diameter of drain hole 4 is 110mm.
Collector drain 5 is offered in described dam body 1 inner close downstream, and is drilled with one group of rhone 8 that is fan-shaped distribution to upstream side in this collector drain, and the lowest elevation of rhone 8 is higher than the elevation of collector drain 5.In this example, this group rhone 8 has a row, and its elevation angle is 30 degree, and the distance between adjacent each rhone 8 is 2.25m, and the diameter of rhone 8 is 130mm, and this group rhone 8 and the elevation angle also are 30 to spend and intersect with the several rows of water hole 4 of basic gallery 2 connections and link to each other.
The drainage channel 6 that a row is communicated with the dam foundation 7 and basic gallery 2 is established in described basic gallery 2 belows sidetracking downstream, in this example, the diameter of drainage channel 6 is 110mm, distance between adjacent each drainage channel 6 is 3m, the angle of this drainage channel and vertical direction is 30 degree and gos deep into the certain degree of depth of the dam foundation and (be generally the degree of depth of 0.4-0.6 times of dam foundation curtain, get the degree of depth of 0.5 times of dam foundation curtain in this example), make dam body, drain in dam foundation form complete drainage system.In actual use, need in basic gallery 2, arrange suction pump, in the water suction basis gallery 2 that infiltrates in the drainage channel 6, concentrate discharging.
During draining, most of percolating water is collected to basic gallery 2 by gutter 3, drain hole 4 and drainage channel 6 respectively, concentrates discharging, and fraction percolating water then is collected to collector drain 5 by rhone 8, concentrates discharging.
Claims (6)
1. dam body discharge structure, has dam body (1), basic gallery (2) is offered in its inside, dam body (1) top is communicated with basic gallery (2) by the gutter of vertically arranging (3), it is characterized in that: be drilled with one group of drain hole (4) that is fan-shaped distribution to the downstream in the described basic gallery (2), the lowest elevation of drain hole (4) is higher than the elevation of basic gallery (2).
2. dam body discharge structure according to claim 1 is characterized in that: described drain hole (4) has 1-3 row, and the elevation angle is the 30-60 degree, and the distance between adjacent each drain hole of every row (4) is 2-3m, and the diameter of drain hole (4) is 110mm-150mm.
3. dam body discharge structure according to claim 1 and 2, it is characterized in that: described basic gallery (2) below is drilled with the drainage channel (6) that is communicated with the dam foundation (7) and basic gallery (2), and the degree of depth that this drainage channel gos deep into the dam foundation is the 0.4-0.6 times of dam foundation curtain degree of depth.
4. dam body discharge structure according to claim 1 and 2, it is characterized in that: described dam body (1) is inner near offering collector drain (5) in the downstream, and in this collector drain, being drilled with one group of rhone (8) that is fan-shaped distribution to upstream side, the lowest elevation of rhone (8) is higher than the elevation of collector drain (5).
5. dam body discharge structure according to claim 3, it is characterized in that: described dam body (1) is inner near offering collector drain (5) in the downstream, and in this collector drain, being drilled with one group of rhone (8) that is fan-shaped distribution to upstream side, the lowest elevation of rhone (8) is higher than the elevation of collector drain (5).
6. dam body discharge structure according to claim 4, it is characterized in that: described rhone (8) is established a row, the elevation angle 30 degree, and the distance between adjacent each rhone (8) is 2.25m, aperture 130mm, and be that the several rows of water holes (4) of 30 degree intersect and link to each other with the elevation angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201026881U CN201598619U (en) | 2010-01-22 | 2010-01-22 | Dam body water draining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201026881U CN201598619U (en) | 2010-01-22 | 2010-01-22 | Dam body water draining structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201598619U true CN201598619U (en) | 2010-10-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201026881U Expired - Fee Related CN201598619U (en) | 2010-01-22 | 2010-01-22 | Dam body water draining structure |
Country Status (1)
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| CN (1) | CN201598619U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287003A (en) * | 2011-05-30 | 2011-12-21 | 中国葛洲坝集团股份有限公司 | Dam concrete cabin surface water accumulation hidden pipe discharge method |
| CN102776894A (en) * | 2012-08-28 | 2012-11-14 | 中国水电顾问集团中南勘测设计研究院 | Dam foundation uplift pressure regulation device |
| CN104790422A (en) * | 2015-05-05 | 2015-07-22 | 中国电建集团中南勘测设计研究院有限公司 | Control system for dam foundation stratum uplift deformation |
| CN109555087A (en) * | 2019-01-04 | 2019-04-02 | 长江勘测规划设计研究有限责任公司 | The two dam structures and its application method of runtime not pump drainage turn(a)round interim pump drainage |
-
2010
- 2010-01-22 CN CN2010201026881U patent/CN201598619U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287003A (en) * | 2011-05-30 | 2011-12-21 | 中国葛洲坝集团股份有限公司 | Dam concrete cabin surface water accumulation hidden pipe discharge method |
| CN102287003B (en) * | 2011-05-30 | 2013-06-26 | 中国葛洲坝集团股份有限公司 | Dam concrete cabin surface water accumulation hidden pipe discharge method |
| CN102776894A (en) * | 2012-08-28 | 2012-11-14 | 中国水电顾问集团中南勘测设计研究院 | Dam foundation uplift pressure regulation device |
| CN104790422A (en) * | 2015-05-05 | 2015-07-22 | 中国电建集团中南勘测设计研究院有限公司 | Control system for dam foundation stratum uplift deformation |
| CN104790422B (en) * | 2015-05-05 | 2017-05-10 | 中国电建集团中南勘测设计研究院有限公司 | Control system for dam foundation stratum uplift deformation |
| CN109555087A (en) * | 2019-01-04 | 2019-04-02 | 长江勘测规划设计研究有限责任公司 | The two dam structures and its application method of runtime not pump drainage turn(a)round interim pump drainage |
| CN109555087B (en) * | 2019-01-04 | 2024-04-12 | 长江勘测规划设计研究有限责任公司 | Two-way dam structure with temporary pumping and draining function in non-pumping and draining maintenance period in operation period and application method of two-way dam structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20190122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |