CN205314056U - It seals prevention of seepage reinforced structure to grout masonry dam or concrete dam - Google Patents
It seals prevention of seepage reinforced structure to grout masonry dam or concrete dam Download PDFInfo
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- CN205314056U CN205314056U CN201521134461.4U CN201521134461U CN205314056U CN 205314056 U CN205314056 U CN 205314056U CN 201521134461 U CN201521134461 U CN 201521134461U CN 205314056 U CN205314056 U CN 205314056U
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Abstract
The utility model discloses an it seals prevention of seepage reinforced structure to grout masonry dam or concrete dam, including setting up at the new concrete prevention of seepage panel of dam body upper reaches dam facing and the main grouted curtain who obtains by former grouted curtain consolidation by grouting again, new concrete watertight faceplate bottom is provided with concerte cover plate, is provided with supplementary grouted curtain between main grouted curtain and the concerte cover plate, and supplementary grouted curtain is the cross arrangement state with main grouted curtain, new concrete prevention of seepage panel, supplementary grouted curtain and main grouted curtain form and seal anti -seepage system. The utility model provides a weak problem of the prevention of seepage at position has strengthened the impervious ability in this position between prior art middle and upper reaches dam facing prevention of seepage panel and the former grouted curtain of the dam foundation, guarantees to grout masonry dam or concrete dam's prevention of seepage reliability, makes it possess good prevention of seepage effect.
Description
Technical field
The utility model relates to hydro project technical field, specifically refers to that a kind of stone masonry dam or concrete dam close anti-seepage reinforcing structure.
Background technology
Watertight grouting curtain generally it is provided with under the basic gallery of stone masonry dam or concrete dam, when dam body upstream, former concrete anti-seepage panel seepage is serious, when dam foundation watertight grouting curtain has also easily occurred that serious infiltration stripping destroys, corresponding anti-seepage reinforcing measure need to be taked to process. At present, in stone masonry dam or concrete dam anti-seepage reinforcing prior art, general employing upstream reconstruct impervious body, the dam foundation adopts curtain grouting reinforcing anti-seepage, but dam foundation grouting curtain does not take special measures and upstream reconstruct impervious body to be connected, between grouting curtain and impervious body, the impervious ability in position is weaker, and under the high water head effect of upstream, seepage failure problem easily occurs in this position.
Summary of the invention
The purpose of this utility model is to provide a kind of stone masonry dam or concrete dam to close anti-seepage reinforcing structure, it arranges auxiliary grouting curtain between novel concrete face slab for water retaining and main grouting curtain, and auxiliary grouting curtain and main grouting curtain cross coupled, make the novel concrete face slab for water retaining of dam body upstream, auxiliary grouting curtain and main grouting curtain form the seepage control system of complete closure.
For achieving the above object, the utility model is by the following technical solutions: the utility model concrete dam or stone masonry dam close anti-seepage reinforcing structure, the main grouting curtain comprising the novel concrete face slab for water retaining being arranged on dam body upstream dam facing and obtaining by former grouting curtain again consolidation by grouting; Being provided with concrete cover bottom described novel concrete face slab for water retaining, be provided with auxiliary grouting curtain between described main grouting curtain and concrete cover, described auxiliary grouting curtain and main grouting curtain are in intersecting arrangement states; Described novel concrete face slab for water retaining, auxiliary grouting curtain and main grouting curtain form closed seepage control system.
Preferably, the angle of described auxiliary grouting curtain and horizontal plane is 60 °, and the length of described auxiliary grouting curtain is 10m.
Further, described main grouting curtain stretches into 5m below basement rock velatively waterproof layer bottom dam body.
The beneficial effects of the utility model are:
The utility model utilizes and strengthens the former grouting curtain of the dam foundation, form main grouting curtain, the auxiliary grouting curtain of inclined downstream is set up in the novel concrete face slab for water retaining bottom of upstream dam facing, and auxiliary grouting curtain intersects with main grouting curtain, the novel concrete face slab for water retaining of dam body is connected with the main grouting curtain of the dam foundation, formed and close seepage control system, solve the weak problem of antiseepage at position between prior art middle and upper reaches dam face seepage panel and the former grouting curtain of the dam foundation, enhance the impervious ability in this position, guarantee the antiseepage reliability of stone masonry dam or concrete dam, it is made to possess good anti-seepage effect.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of stone masonry dam or concrete dam close anti-seepage reinforcing structure.
Wherein: basement rock velatively waterproof layer 1.1, in figure: dam body 1 (gallery 1.2); Novel concrete face slab for water retaining 2 (wherein: concrete cover 2.1); Main grouting curtain 3; Auxiliary grouting curtain 4; Copper water stop 5.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but this embodiment should not be construed restriction of the present utility model.
As shown in Figure 1, the utility model provides a kind of stone masonry dam or concrete dam to close anti-seepage reinforcing structure, comprises the novel concrete face slab for water retaining 2 being arranged on dam body 1 upstream dam facing and the main grouting curtain 3 obtained by former grouting curtain again consolidation by grouting. Wherein, in the gallery 1.2 of dam body 1, the former grouting curtain of upstream side is drilled with single grout hole until stretching into basement rock velatively waterproof layer less than 1.1 5m bottom dam body 1, distance between adjacent grout hole is 1.5～2.0m, segmentation from top to bottom, three sequence grouting way is adopted to be in the milk by grout hole respectively, grouting slurries adopt cement mark to be not less than the cement of 42.5 grades, will form main grouting curtain 3 after former grouting curtain again consolidation by grouting, main grouting curtain 3 grouting pressure is not less than 0.6MPa.
Concrete cover 2.1 it is provided with bottom novel concrete face slab for water retaining 2, parting design between novel concrete face slab for water retaining 2 and concrete cover 2.1 has copper water stop 5, auxiliary grouting curtain 4 it is provided with between main grouting curtain 3 and concrete cover 2.1, assist grouting curtain 4 with main grouting curtain 3 in intersecting arrangement states so that novel concrete face slab for water retaining 2, auxiliary grouting curtain 4 and main grouting curtain 3 are formed closes seepage control system. Wherein, tilt to be drilled with single grout hole from concrete cover 2.1 to dam foundation downstream side, the angle of grout hole and horizontal plane is 60 °, pitch-row is 1.5～2.0m, adopting segmentation from top to bottom, three sequence grouting way to be in the milk by grout hole respectively, grouting slurries adopt cement mark to be not less than the cement of 42.5 grades, and grouting length is 10m, forming auxiliary grouting curtain 4, auxiliary grouting curtain 4 grouting pressure is not less than 0.4MPa.
The content not being described in detail in this specification sheets, belongs to the known prior art of those skilled in the art.
Claims (3)
1. a stone masonry dam or concrete dam close anti-seepage reinforcing structure, it is characterised in that: comprise the novel concrete face slab for water retaining (2) being arranged on dam body (1) upstream dam facing and the main grouting curtain (3) obtained by former grouting curtain again consolidation by grouting; Described novel concrete face slab for water retaining (2) bottom is provided with concrete cover (2.1), being provided with auxiliary grouting curtain (4) between described main grouting curtain (3) and concrete cover (2.1), described auxiliary grouting curtain (4) and main grouting curtain (3) are in intersecting arrangement states;Described novel concrete face slab for water retaining (2), auxiliary grouting curtain (4) and main grouting curtain (3) are formed closes seepage control system.
2. stone masonry dam according to claim 1 or concrete dam close anti-seepage reinforcing structure, it is characterised in that: described auxiliary grouting curtain (4) is 60 ° with the angle of horizontal plane, and the length of described auxiliary grouting curtain (4) is 10m.
3. stone masonry dam according to claim 1 or concrete dam close anti-seepage reinforcing structure, it is characterised in that: described main grouting curtain (3) stretches into dam body (1) bottom basement rock velatively waterproof layer (1.1) following 5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521134461.4U CN205314056U (en) | 2015-12-31 | 2015-12-31 | It seals prevention of seepage reinforced structure to grout masonry dam or concrete dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521134461.4U CN205314056U (en) | 2015-12-31 | 2015-12-31 | It seals prevention of seepage reinforced structure to grout masonry dam or concrete dam |
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| Publication Number | Publication Date |
|---|---|
| CN205314056U true CN205314056U (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521134461.4U Active CN205314056U (en) | 2015-12-31 | 2015-12-31 | It seals prevention of seepage reinforced structure to grout masonry dam or concrete dam |
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| CN (1) | CN205314056U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484204A (en) * | 2015-12-31 | 2016-04-13 | 长江勘测规划设计研究有限责任公司 | Stone masonry dam or concrete dam sealing anti-seepage reinforcement structure and construction method thereof |
| CN110965533A (en) * | 2019-12-29 | 2020-04-07 | 中国电建集团华东勘测设计研究院有限公司 | Interlayer dislocation zone anti-seepage treatment structure and construction method |
-
2015
- 2015-12-31 CN CN201521134461.4U patent/CN205314056U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484204A (en) * | 2015-12-31 | 2016-04-13 | 长江勘测规划设计研究有限责任公司 | Stone masonry dam or concrete dam sealing anti-seepage reinforcement structure and construction method thereof |
| CN110965533A (en) * | 2019-12-29 | 2020-04-07 | 中国电建集团华东勘测设计研究院有限公司 | Interlayer dislocation zone anti-seepage treatment structure and construction method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |