CN204370373U - Seepage proof curtain structure closed by a kind of reservoir - Google Patents
Seepage proof curtain structure closed by a kind of reservoir Download PDFInfo
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- CN204370373U CN204370373U CN201420676321.9U CN201420676321U CN204370373U CN 204370373 U CN204370373 U CN 204370373U CN 201420676321 U CN201420676321 U CN 201420676321U CN 204370373 U CN204370373 U CN 204370373U
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- gunite
- sheet
- pile
- mud jacking
- splitting
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- 239000011378 shotcrete Substances 0.000 claims abstract description 64
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000005516 engineering process Methods 0.000 claims abstract description 11
- 238000010276 construction Methods 0.000 abstract description 10
- 230000003449 preventive effect Effects 0.000 abstract description 2
- 230000002146 bilateral effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 239000011230 binding agent Substances 0.000 description 8
- 239000004568 cement Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000011218 segmentation Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000004567 concrete Substances 0.000 description 5
- 230000002265 prevention Effects 0.000 description 4
- 238000007596 consolidation process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Abstract
The utility model relates to a kind of reservoir and closes seepage proof curtain structure, belongs to preventive works technical field.This structure comprises dykes and dams and the dam foundation, dam foundation part is divided into pervious layer from top to bottom, aquitard and impervious layer, also comprise splitting mud jacking mud wall, gunite sheet-pile, gunite sheet-pile hole and splitting mud jacking hole, that dykes and dams all full symmetrics axis is the longest is dam body axis A, dam body axis A bilateral symmetry arranges splitting mud jacking hole, dam body axis A is also provided with gunite sheet-pile hole, gunite sheet-pile is formed by adopting high pressure jet grouting technique to form the stake of continuous print churning semicircle in gunite sheet-pile hole, gunite sheet-pile penetrates dam foundation highly permeable layer in dykes and dams inside, embed aquitard or impervious layer, splitting mud jacking hole forms splitting mud jacking mud wall by adopting splitting mud jacking technology, the height of splitting mud jacking mud wall is the height of dykes and dams.This structure construction is easy and simple to handle, applicability strong, cost is lower.
Description
Technical field
The utility model relates to a kind of reservoir and closes seepage proof curtain structure, belongs to preventive works technical field.
Background technology
50 ~ seventies of 20th century, China has built large quantities of reservoir engineering, the earth and rockfill dam wherein greatly for utilizing local filling material to fill.In view of the restriction of human-subject test and construction ability at that time, special seepage control method or seepage control method deficiency are not had to the dam foundation or dam body, cause the more serious dam foundation or dam body leakage problems, there is very large potential safety hazard, become sick dam, greatly constrain safety and the profit point of reservoir.Sick dam antiseepage weak part is positioned at the dam foundation mostly, and for extensive use in earth and rockfill dam dam foundation impervious consolidation method is grouting and concrete cut method.But conventional grout method applies little pressure will cause dam body to ftracture, to the grouting of dam foundation stratum, general concrete castability is poor under a certain pressure, and once can fill with, slurries spread again comparatively far away, are difficult to control.If adopt concrete cut to reinforce, the pore-creating of impervious wall fluting can cause foundation stress " release " and rigid concrete wall and the loose contact of consolidation mud skin, and it is poor to be out of shape adaptive capacity, and grooving is also more difficult, and cost is higher.
Summary of the invention
For above-mentioned prior art Problems existing and deficiency, the utility model provides a kind of reservoir to close seepage proof curtain structure.In this structure, splitting mud jacking mud wall and gunite sheet-pile can connect into closed seepage proof curtain, dam can not only be made to solve seepage stability problem within a short period of time, guarantee the safety of dam, and constructing operation is easy, applicability strong, cost is lower, the utility model is achieved through the following technical solutions.
Seepage proof curtain structure closed by a kind of reservoir, comprise dykes and dams 1 and the dam foundation, dam foundation part is divided into pervious layer 4 from top to bottom, aquitard 5 and impervious layer, also comprise splitting mud jacking mud wall 2, gunite sheet-pile 3, gunite sheet-pile hole and splitting mud jacking hole, that dykes and dams 1 all full symmetrics axis is the longest is dam body axis A, dam body axis A both sides 0.5 ~ 2.0m is symmetrical arranged splitting mud jacking hole, dam body axis A is also provided with gunite sheet-pile hole, gunite sheet-pile 3 is formed by adopting high pressure jet grouting technique to form the stake of continuous print churning semicircle in gunite sheet-pile hole, gunite sheet-pile 3 penetrates dam foundation highly permeable layer 4 in dykes and dams 1 inside, embed aquitard 5 or impervious layer, splitting mud jacking hole forms splitting mud jacking mud wall 2 by adopting splitting mud jacking technology, the height of splitting mud jacking mud wall 2 is the height of dykes and dams 1.
Described gunite sheet-pile 3 should exceed the dam foundation and dykes and dams 1 boundary line 1 ~ 2m, and passes through highly permeable layer 4, embeds aquitard 5 or impervious layer 2 ~ 3m; Gunite sheet-pile pitch of holes is 1 ~ 2m.
Described gunite sheet-pile 3 is made up of the stake of continuous print churning semicircle, and adjacent semicircle stake lap length is not less than 150mm, and can take segmentation point sequence construction or sequential production, injecting paste material selects cement paste, and water/binder ratio is 1:1 ~ 1.5:1.
Described gunite sheet-pile 3 is positioned on the upside of dam body axis A or downside.The position that gunite sheet-pile 3 is positioned at dam body axis A is determined by actual leakage prevention structure.
Described splitting mud jacking pitch of holes is 3 ~ 5m, carries out longitudinal mud jacking from dykes and dams 1 dam crest to the dam foundation; For being conducive to the adjustment of dam body internal stress, strengthen splitting mud jacking pressure, increase mud jacking number of times, every hole is no less than 5 times as far as possible; Injecting paste material selects cement paste, and water/binder ratio is 1:1 ~ 1.5:1; According to the principle of " pile bottom grouting, few filling is how multiple ", segmentation point sequence construction or sequential production can be taked; Splitting mud jacking no meter parameter should meet " earth and rockfill dam dam body grouting technique specification " SD266-88 related request.
This structure is equally applicable to the Anti-seeping technology of river course, power station dykes and dams.
This structure can effectively fill dam body water leakage inside passage and hole by splitting mud jacking mud wall 2, eliminates dam body infiltration path, increases dam embankment densify degree; Form gunite sheet-pile 3 by high pressure jet grouting technique, can effectively solve leakage of dam foundation problem; Splitting mud jacking mud wall 2 and gunite sheet-pile 3 can connect into closed seepage proof curtain, make dam solve seepage stability problem within a short period of time, guarantee safety and the profit point of dam
The beneficial effects of the utility model are: (1) utilizes splitting mud jacking technology in dam body altitude range, form twice splitting mud jacking mud wall, mud fully can fill leak paths and the hole of dam body inside, eliminate infiltration hidden danger, effectively can not only solve the leakage problems of dam body, dam embankment densify degree can also be improved, increase the stability of reservoir dam.In addition, splitting mud jacking technology has the advantages such as investment is little, instant effect, equipment and technology are simple, easy to operate in earth dam reinforcement.
(2) utilize high pressure jet grouting technique to form high pressure board wall in dam foundation position, effectively can solve the leakage problems of the dam foundation, constructing operation is easy.
(3) board wall that formed of the mud wall that formed of splitting mud jacking and high pressure jet grouting, can connect into closed curtain, have ignored the defect adding concrete floor under impervious body and dam, the seepage stability of dam is guaranteed when making up reservoir dam design.
Accompanying drawing explanation
Fig. 1 is the utility model structural profile schematic diagram;
Fig. 2 is the utility model floor map A;
Fig. 3 is the utility model floor map B.
In figure: 1-dykes and dams, 2-splitting mud jacking mud wall, 3-gunite sheet-pile, 4-highly permeable layer, 5-aquitard, A-dam body axis.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1
As illustrated in fig. 1 and 2, seepage proof curtain structure closed by this reservoir, comprise dykes and dams 1 and the dam foundation, dam foundation part is divided into pervious layer 4 from top to bottom, aquitard 5 and impervious layer, also comprise splitting mud jacking mud wall 2, gunite sheet-pile 3, gunite sheet-pile hole and splitting mud jacking hole, that dykes and dams 1 all full symmetrics axis is the longest is dam body axis A, dam body axis A both sides 0.5m is symmetrical arranged splitting mud jacking hole, dam body axis A is also provided with gunite sheet-pile hole, gunite sheet-pile 3 is formed by adopting high pressure jet grouting technique to form the stake of continuous print churning semicircle in gunite sheet-pile hole, gunite sheet-pile 3 penetrates dam foundation highly permeable layer 4 in dykes and dams 1 inside, embed aquitard 5 or impervious layer, splitting mud jacking hole forms splitting mud jacking mud wall 2 by adopting splitting mud jacking technology, the height of splitting mud jacking mud wall 2 is the height of dykes and dams 1.
Wherein gunite sheet-pile 3 should exceed the dam foundation and dykes and dams 1 boundary line 1m, and passes through highly permeable layer 4, embeds aquitard 5 or impervious layer 2m; Gunite sheet-pile pitch of holes is 1m; Gunite sheet-pile 3 is made up of the stake of continuous print churning semicircle, and adjacent semicircle stake lap length is not less than 150mm, and can take segmentation point sequence construction or sequential production, injecting paste material selects cement paste, and water/binder ratio is 1:1 ~ 1.5:1; Gunite sheet-pile 3 is positioned on the upside of dam body axis A.The position that gunite sheet-pile 3 is positioned at dam body axis A is determined by actual leakage prevention structure; Splitting mud jacking pitch of holes is 3m, carries out longitudinal mud jacking from dykes and dams 1 dam crest to the dam foundation; For being conducive to the adjustment of dam body internal stress, strengthen splitting mud jacking pressure, increase mud jacking number of times, every hole is no less than 5 times as far as possible; Injecting paste material selects cement paste, and water/binder ratio is 1:1 ~ 1.5:1; According to the principle of " pile bottom grouting, few filling is how multiple ", segmentation point sequence construction or sequential production can be taked; Splitting mud jacking no meter parameter should meet " earth and rockfill dam dam body grouting technique specification " SD266-88 related request.
Embodiment 2
As shown in figs. 1 and 3, seepage proof curtain structure closed by this reservoir, comprise dykes and dams 1 and the dam foundation, dam foundation part is divided into pervious layer 4 from top to bottom, aquitard 5 and impervious layer, also comprise splitting mud jacking mud wall 2, gunite sheet-pile 3, gunite sheet-pile hole and splitting mud jacking hole, that dykes and dams 1 all full symmetrics axis is the longest is dam body axis A, dam body axis A both sides 2.0m is symmetrical arranged splitting mud jacking hole, dam body axis A place is also provided with gunite sheet-pile hole, gunite sheet-pile 3 is formed by adopting high pressure jet grouting technique to form the stake of continuous print churning semicircle in gunite sheet-pile hole, gunite sheet-pile 3 penetrates dam foundation highly permeable layer 4 in dykes and dams 1 inside, embed aquitard 5 or impervious layer, splitting mud jacking hole forms splitting mud jacking mud wall 2 by adopting splitting mud jacking technology, the height of splitting mud jacking mud wall 2 is the height of dykes and dams 1.
Wherein gunite sheet-pile 3 should exceed the dam foundation and dykes and dams 1 boundary line 2m, and passes through highly permeable layer 4, embeds aquitard 5 or impervious layer 3m; Gunite sheet-pile pitch of holes is 2m; Gunite sheet-pile 3 is made up of the stake of continuous print churning semicircle, and adjacent semicircle stake lap length is not less than 150mm, and can take segmentation point sequence construction or sequential production, injecting paste material selects cement paste, and water/binder ratio is 1:1 ~ 1.5:1; Gunite sheet-pile 3 is positioned on the downside of dam body axis A, and the position that gunite sheet-pile 3 is positioned at dam body axis A is determined by actual leakage prevention structure; Described splitting mud jacking pitch of holes is 5m, carries out longitudinal mud jacking from dykes and dams 1 dam crest to the dam foundation; For being conducive to the adjustment of dam body internal stress, strengthen splitting mud jacking pressure, increase mud jacking number of times, every hole is no less than 5 times as far as possible; Injecting paste material selects cement paste, and water/binder ratio is 1:1 ~ 1.5:1; According to the principle of " pile bottom grouting, few filling is how multiple ", segmentation point sequence construction or sequential production can be taked; Splitting mud jacking no meter parameter should meet " earth and rockfill dam dam body grouting technique specification " SD266-88 related request.
Embodiment 3
As shown in Figure 1, seepage proof curtain structure closed by this reservoir, comprise dykes and dams 1 and the dam foundation, dam foundation part is divided into pervious layer 4 from top to bottom, aquitard 5 and impervious layer, also comprise splitting mud jacking mud wall 2, gunite sheet-pile 3, gunite sheet-pile hole and splitting mud jacking hole, that dykes and dams 1 all full symmetrics axis is the longest is dam body axis A, dam body axis A both sides 1.5m is symmetrical arranged splitting mud jacking hole, dam body axis A place is also provided with gunite sheet-pile hole, gunite sheet-pile 3 is formed by adopting high pressure jet grouting technique to form the stake of continuous print churning semicircle in gunite sheet-pile hole, gunite sheet-pile 3 penetrates dam foundation highly permeable layer 4 in dykes and dams 1 inside, embed aquitard 5 or impervious layer, splitting mud jacking hole forms splitting mud jacking mud wall 2 by adopting splitting mud jacking technology, the height of splitting mud jacking mud wall 2 is the height of dykes and dams 1.
Described gunite sheet-pile 3 should exceed the dam foundation and dykes and dams 1 boundary line 1.5m, and passes through highly permeable layer 4, embeds aquitard 5 or impervious layer 2.5m; Gunite sheet-pile pitch of holes is 1.5m; Gunite sheet-pile 3 is made up of the stake of continuous print churning semicircle, and adjacent semicircle stake lap length is not less than 150mm, and can take segmentation point sequence construction or sequential production, injecting paste material selects cement paste, and water/binder ratio is 1:1 ~ 1.5:1; Gunite sheet-pile 3 is positioned on the upside of dam body axis A or downside, and the position that gunite sheet-pile 3 is positioned at dam body axis A is determined by actual leakage prevention structure; Splitting mud jacking pitch of holes is 4m, carries out longitudinal mud jacking from dykes and dams 1 dam crest to the dam foundation; For being conducive to the adjustment of dam body internal stress, strengthen splitting mud jacking pressure, increase mud jacking number of times, every hole is no less than 5 times as far as possible; Injecting paste material selects cement paste, and water/binder ratio is 1:1 ~ 1.5:1; According to the principle of " pile bottom grouting, few filling is how multiple ", segmentation point sequence construction or sequential production can be taked; Splitting mud jacking no meter parameter should meet " earth and rockfill dam dam body grouting technique specification " SD266-88 related request.
By reference to the accompanying drawings detailed description of the invention of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (5)
1. seepage proof curtain structure closed by a reservoir, comprise dykes and dams (1) and the dam foundation, dam foundation part is divided into pervious layer (4) from top to bottom, aquitard (5) and impervious layer, it is characterized in that: also comprise splitting mud jacking mud wall (2), gunite sheet-pile (3), gunite sheet-pile hole and splitting mud jacking hole, that dykes and dams (1) all full symmetrics axis is the longest is dam body axis A, dam body axis A both sides 0.5 ~ 2.0m is symmetrical arranged splitting mud jacking hole, dam body axis A is also provided with gunite sheet-pile hole, gunite sheet-pile (3) is formed by adopting high pressure jet grouting technique to form the stake of continuous print churning semicircle in gunite sheet-pile hole, gunite sheet-pile (3) penetrates dam foundation highly permeable layer (4) in dykes and dams (1) inside, embed aquitard (5) or impervious layer, splitting mud jacking hole forms splitting mud jacking mud wall (2) by adopting splitting mud jacking technology, the height of splitting mud jacking mud wall (2) is the height of dykes and dams (1).
2. seepage proof curtain structure closed by reservoir according to claim 1, it is characterized in that: described gunite sheet-pile (3) should exceed the dam foundation and dykes and dams (1) boundary line 1 ~ 2m, and passes through highly permeable layer (4), embeds aquitard (5) or impervious layer 2 ~ 3m; Gunite sheet-pile pitch of holes is 1 ~ 2m.
3. seepage proof curtain structure closed by reservoir according to claim 2, it is characterized in that: described gunite sheet-pile (3) is made up of the stake of continuous print churning semicircle, and adjacent semicircle stake lap length is not less than 150mm.
4. seepage proof curtain structure closed by reservoir according to claim 3, it is characterized in that: described gunite sheet-pile (3) is positioned on the upside of dam body axis A or downside.
5. seepage proof curtain structure closed by reservoir according to claim 4, it is characterized in that: described splitting mud jacking pitch of holes is 3 ~ 5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676321.9U CN204370373U (en) | 2014-11-13 | 2014-11-13 | Seepage proof curtain structure closed by a kind of reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676321.9U CN204370373U (en) | 2014-11-13 | 2014-11-13 | Seepage proof curtain structure closed by a kind of reservoir |
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| Publication Number | Publication Date |
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| CN204370373U true CN204370373U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420676321.9U Expired - Fee Related CN204370373U (en) | 2014-11-13 | 2014-11-13 | Seepage proof curtain structure closed by a kind of reservoir |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971667A (en) * | 2016-07-20 | 2016-09-28 | 中铁二院昆明勘察设计研究院有限责任公司 | Preventing and treating structure for water-rich railway tunnel ballast bed mud pumping |
| CN106703752A (en) * | 2016-12-03 | 2017-05-24 | 吉林大学 | System closing method used for oil shale underground in-situ exploitation |
| CN110904915A (en) * | 2019-07-19 | 2020-03-24 | 王增平 | Reservoir engineering rock-soil body water permeation and seepage prevention design method |
| CN111622180A (en) * | 2020-05-28 | 2020-09-04 | 中国电建集团中南勘测设计研究院有限公司 | Salt pan dam foundation seepage-proof hydraulic balance structure system and control method thereof |
| CN111809562A (en) * | 2020-06-18 | 2020-10-23 | 上海河道建设有限公司 | Prevention of seepage hydraulic engineering dykes and dams |
| CN112962516A (en) * | 2021-02-23 | 2021-06-15 | 河海大学 | Design and construction method of danger-removing reinforcement measure for inhibiting dike foundation piping |
| CN113216091A (en) * | 2021-04-27 | 2021-08-06 | 湖南欣盛建设有限公司 | Multi-combined full-section seepage-proofing reinforcing construction method for main dam of reservoir |
-
2014
- 2014-11-13 CN CN201420676321.9U patent/CN204370373U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971667A (en) * | 2016-07-20 | 2016-09-28 | 中铁二院昆明勘察设计研究院有限责任公司 | Preventing and treating structure for water-rich railway tunnel ballast bed mud pumping |
| CN105971667B (en) * | 2016-07-20 | 2018-02-02 | 中铁二院昆明勘察设计研究院有限责任公司 | A kind of rich water railway tunnel railway roadbed is risen soil disease control structure and its application method |
| CN106703752A (en) * | 2016-12-03 | 2017-05-24 | 吉林大学 | System closing method used for oil shale underground in-situ exploitation |
| CN106703752B (en) * | 2016-12-03 | 2019-04-19 | 吉林大学 | A kind of system enclosure method for oil shale underground in situ exploitation |
| CN110904915A (en) * | 2019-07-19 | 2020-03-24 | 王增平 | Reservoir engineering rock-soil body water permeation and seepage prevention design method |
| CN111622180A (en) * | 2020-05-28 | 2020-09-04 | 中国电建集团中南勘测设计研究院有限公司 | Salt pan dam foundation seepage-proof hydraulic balance structure system and control method thereof |
| CN111809562A (en) * | 2020-06-18 | 2020-10-23 | 上海河道建设有限公司 | Prevention of seepage hydraulic engineering dykes and dams |
| CN112962516A (en) * | 2021-02-23 | 2021-06-15 | 河海大学 | Design and construction method of danger-removing reinforcement measure for inhibiting dike foundation piping |
| CN113216091A (en) * | 2021-04-27 | 2021-08-06 | 湖南欣盛建设有限公司 | Multi-combined full-section seepage-proofing reinforcing construction method for main dam of reservoir |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20161113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |