CN204608729U - Earth dam water-supply-pipe leakage preventing structure - Google Patents
Earth dam water-supply-pipe leakage preventing structure Download PDFInfo
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- CN204608729U CN204608729U CN201520146110.9U CN201520146110U CN204608729U CN 204608729 U CN204608729 U CN 204608729U CN 201520146110 U CN201520146110 U CN 201520146110U CN 204608729 U CN204608729 U CN 204608729U
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- pipe
- preventing structure
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Abstract
The utility model provides a kind of earth dam water-supply-pipe leakage preventing structure, comprise dam body and water-supply-pipe, described water-supply-pipe runs through and is arranged in dam body, upstream and downstream is communicated with, described water-supply-pipe comprises water inlet, body and delivery port, described body comprises perforation watertight grouting section, and described perforation watertight grouting section is the described water inlet water delivery pipeline section that extremely described dam body dam crest adverse grade point is corresponding, and all the other pipeline sections of described body are not perforated watertight grouting section.The utility model can effectively antiseepage, and avoids phreatic line in earth dam body to raise, simple and practical, with low cost, safe and convenient to use.
Description
Technical field
The utility model belongs to hydraulic engineering field, is specifically related to be applicable to a kind of earth dam water-supply-pipe leakage preventing structure, and the interior caliber being particularly useful for burying underground in Hydraulic and Hydro-Power Engineering earth dam is greater than water-supply-pipe, the conveyance tunnel of 100cm.
Background technology
The water-supply-pipe buried underground in earth dam, conveyance tunnel are the important conveyance structures that reservoir plays in particular cases emptying reservoir in the comprehensive utilization benefits such as generating, water supply, irrigation and management operating, be one of crucial building of earth and rockfill dam, its quality is related to the safety of earth and rockfill dam.But, due to dam foundation differential settlement, water-supply-pipe (hole) structure or tectonic sieving does not meet the demands, construction quality is poor, bear the reasons such as super design conditions load and engineering aging, the water-supply-pipe (hole) of some reservoirs ruptures, seepage or the problem such as to leak in a large number, what concentrative seepage can take away dam body fills earth material, the safety of serious threat earth dam.Perforation consolidation by grouting is a kind of effective seepage control measure, but, although existing leakage preventing structure can solve the leakage problems of pipeline section itself, the phreatic line in earth dam body can be raised, be unfavorable for the stable of earth dam.Therefore, in the urgent need to seeking a kind of simple, effective, safe economically viable leakage preventing structure again.
Utility model content
The purpose of this utility model is the technical problem for solving above, provides that a kind of structure is simple, good seepage-proof property, earth dam water-supply-pipe leakage preventing structure that phreatic line in earth dam body can be avoided to raise.
To achieve these goals, the utility model provides following technical scheme:
A kind of earth dam water-supply-pipe leakage preventing structure, comprise dam body and water-supply-pipe, described water-supply-pipe runs through and is arranged in dam body, upstream and downstream is communicated with, it is characterized in that, described water-supply-pipe comprises water inlet, body and delivery port, and described body comprises perforation watertight grouting section, described perforation watertight grouting section is the described water inlet water delivery pipeline section that extremely described dam body dam crest adverse grade point is corresponding, and all the other pipeline sections of described body are not perforated watertight grouting section.
According to the earth dam water-supply-pipe leakage preventing structure that the utility model provides, the horizontal level of described water inlet is higher than the horizontal level of described delivery port.
According to the earth dam water-supply-pipe leakage preventing structure that the utility model provides, described perforation watertight grouting section comprises at least five perforation grout compartments.
According to the earth dam water-supply-pipe leakage preventing structure that the utility model provides, described perforation grout compartment comprises at least 12 grout holes.
According to the earth dam water-supply-pipe leakage preventing structure that the utility model provides, described grout hole is 12.
According to the earth dam water-supply-pipe leakage preventing structure that the utility model provides, described grout hole is uniformly distributed along body periphery, and penetrates tube wall.
According to the earth dam water-supply-pipe leakage preventing structure that the utility model provides, the aperture of described grout hole is 4 ~ 6cm, and pitch of holes is 30 °.
According to the earth dam water-supply-pipe leakage preventing structure that the utility model provides, in described grout hole, inserts is housed.
" water-supply-pipe " described in the utility model refers to aqueduct structure, also comprises conveyance tunnel.
Compared with existing earth dam water-supply-pipe leakage preventing structure, earth dam water-supply-pipe leakage preventing structure of the present utility model improves traditional earth dam water-supply-pipe leakage preventing structure, utilize the principle of " front stifled rear thin ", arranging water delivery pipeline section in water-supply-pipe water inlet to dam corresponding to earth dam dam crest adverse grade end points is perforation watertight grouting section, all the other pipeline sections are not perforated watertight grouting section, only can carry out partial structurtes reinforcing.Like this, both can solve water-supply-pipe contact leakage problem, and a small amount of infiltration can have been allowed again to move toward downstream is defeated fast, effectively avoid phreatic line in earth dam body to raise.This leakage preventing structure is simple and practical, with low cost, safe and convenient to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of earth dam water-supply-pipe leakage preventing structure of the present utility model.
Fig. 2 is the sectional drawing of perforation grout compartment.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to following examples.It should be noted that in the utility model, perforation grouting is known technology.
As depicted in figs. 1 and 2, the earth dam water-supply-pipe leakage preventing structure that the utility model provides comprises dam body 1 and water-supply-pipe 2, wherein, water-supply-pipe 2 runs through and is arranged in dam body 1, upstream and downstream is communicated with, wherein, water-supply-pipe 2 comprises water inlet 21, body 22 and delivery port 23, body 22 comprises perforation watertight grouting section 3, and this perforation watertight grouting section 3 is the water delivery pipeline section that water inlet 21 to dam body 1 dam crest adverse grade point is corresponding, and all the other pipeline sections of body 22 are not perforated watertight grouting section 4.
For not perforated watertight grouting section 4, be preferably partial structurtes and reinforce, thus a small amount of infiltration can be made to move toward downstream is defeated fast, effectively avoid phreatic line in earth dam body to raise.
Preferably, water-supply-pipe 2 from swim over to the downward-sloping setting in downstream, the horizontal level of the water inlet 21 be communicated with upstream higher than the horizontal level of the delivery port 23 with communicating downstream, thus plays water delivery effect.
In order to reach good anti-seepage effect, perforation watertight grouting section 3 comprises at least five perforation grout compartments 5.These perforation grout compartments 5 are provided with grout hole 51 on tube wall.Preferably, perforation grout compartment 5 comprises at least 12 grout holes 51, and the quantity of grout hole 51 most preferably is 12.
Go out as shown in Figure 2, for having the perforation grout compartment 5 of 12 grout holes 51, these 12 grout holes are uniformly distributed along body periphery, and penetrate tube wall, inserts for preventing moisture from infiltrating being housed in grout hole 51, including but not limited to cement, cement mortar, clay, cement clay and high-molecular organic material etc.
In a preferred embodiment, the aperture of described grout hole is 4 ~ 6cm, and pitch of holes is 30 °, thus reaches better anti-seepage effect.
Compared with existing earth dam water-supply-pipe leakage preventing structure, earth dam water-supply-pipe leakage preventing structure of the present utility model improves traditional earth dam water-supply-pipe leakage preventing structure, utilize the principle of " front stifled rear thin ", arranging water delivery pipeline section in water-supply-pipe water inlet to dam corresponding to earth dam dam crest adverse grade end points is perforation watertight grouting section, all the other pipeline sections are not perforated watertight grouting section, only can carry out partial structurtes reinforcing.Like this, both can solve water-supply-pipe contact leakage problem, and a small amount of infiltration can have been allowed again to move toward downstream is defeated fast, effectively avoid phreatic line in earth dam body to raise.This leakage preventing structure is simple and practical, with low cost, safe and convenient to use, and the interior caliber being particularly useful for burying underground in Hydraulic and Hydro-Power Engineering earth dam is greater than water-supply-pipe, the conveyance tunnel of 100cm.
Claims (8)
1. an earth dam water-supply-pipe leakage preventing structure, comprise dam body and water-supply-pipe, described water-supply-pipe runs through and is arranged in dam body, upstream and downstream is communicated with, it is characterized in that, described water-supply-pipe comprises water inlet, body and delivery port, and described body comprises perforation watertight grouting section, described perforation watertight grouting section is the described water inlet water delivery pipeline section that extremely described dam body dam crest adverse grade point is corresponding, and all the other pipeline sections of described body are not perforated watertight grouting section.
2. earth dam water-supply-pipe leakage preventing structure according to claim 1, is characterized in that, the horizontal level of described water inlet is higher than the horizontal level of described delivery port.
3. earth dam water-supply-pipe leakage preventing structure according to claim 1, is characterized in that, described perforation watertight grouting section comprises at least five perforation grout compartments.
4. earth dam water-supply-pipe leakage preventing structure according to claim 3, is characterized in that, described perforation grout compartment comprises at least 12 grout holes.
5. earth dam water-supply-pipe leakage preventing structure according to claim 4, is characterized in that, described grout hole is 12.
6. earth dam water-supply-pipe leakage preventing structure according to claim 4, it is characterized in that, described grout hole is uniformly distributed along body periphery, and penetrates tube wall.
7. earth dam water-supply-pipe leakage preventing structure according to claim 6, is characterized in that, the aperture of described grout hole is 4 ~ 6cm, and pitch of holes is 30 °.
8. the earth dam water-supply-pipe leakage preventing structure according to any one of claim 4 to 7, is characterized in that, in described grout hole, inserts is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146110.9U CN204608729U (en) | 2015-03-13 | 2015-03-13 | Earth dam water-supply-pipe leakage preventing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146110.9U CN204608729U (en) | 2015-03-13 | 2015-03-13 | Earth dam water-supply-pipe leakage preventing structure |
Publications (1)
| Publication Number | Publication Date |
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| CN204608729U true CN204608729U (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520146110.9U Expired - Fee Related CN204608729U (en) | 2015-03-13 | 2015-03-13 | Earth dam water-supply-pipe leakage preventing structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020147237A1 (en) * | 2019-01-16 | 2020-07-23 | 济南城建集团有限公司 | Method for construction of underground space structure across stratum in vadose zone |
| CN114855705A (en) * | 2021-06-21 | 2022-08-05 | 韩元元 | Method for treating leakage of water engineering |
-
2015
- 2015-03-13 CN CN201520146110.9U patent/CN204608729U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020147237A1 (en) * | 2019-01-16 | 2020-07-23 | 济南城建集团有限公司 | Method for construction of underground space structure across stratum in vadose zone |
| CN114855705A (en) * | 2021-06-21 | 2022-08-05 | 韩元元 | Method for treating leakage of water engineering |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20200313 |