CN203639953U - Impervious structure for water storing facility in karst region - Google Patents
Impervious structure for water storing facility in karst region Download PDFInfo
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- CN203639953U CN203639953U CN201320712498.5U CN201320712498U CN203639953U CN 203639953 U CN203639953 U CN 203639953U CN 201320712498 U CN201320712498 U CN 201320712498U CN 203639953 U CN203639953 U CN 203639953U
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- curtain grouting
- impervious wall
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Abstract
The utility model provides an impervious structure for a water storing facility in a karst region. An underground part of the karst region comprises a covering layer at the upper part and a bedrock layer at the lower part, wherein a soil rock boundary layer is arranged between the covering layer and the bedrock layer; the underground part is divided into an upstream side and a downstream side by the impervious structure; an impervious wall is arranged on the covering layer; a plurality of grout pipes are arranged in the impervious wall; a curtain grout area is arranged on the bedrock layer; the impervious wall is connected with the curtain grout area; the bottom of impervious wall enters the bedrock layer for at least 1m. According to the impervious structure disclosed by the utility model, the covering layer of the karst region adopts the concrete impervious wall and the bedrock layer is of a curtain grout structure; in addition, aiming at different construction modes, the soil rock boundary layer between the covering layer and the bedrock layer adopts different structures, so that no seepage of water reservoirs or other water storing facilities in the karst region is ensured.
Description
Technical field
The utility model relates to a kind of leakage preventing structure, relates in particular to the karst leakage preventing structure of a kind of reservoir for karst area or other storing facilities of waters.
Background technology
Reservoir or other storing facilities of water are because condition restriction is built in karst area a bit.On the Reservoir Bank of karst area or the dyke of storing facilities of water periphery, the top of its under ground portion is the covering layer of loose water permeability, bottom is horizon d, it between covering layer and horizon d, is native rock boundary layer, and the geological structure of karst area is grown along level, karst is grown and is mainly existed with lapies, fluid bowl, solution crack pattern, and is mainly distributed near native rock boundary layer.Native rock boundary layer is neighbouring due to corrosion simultaneously, and rock surface is irregular zigzag, uneven.Because above-mentioned special geology and geomorphology causes there will be Karst Leakage at the reservoir of karst area or other storing facilities of waters, so in order to prevent reservoir leakage and to prevent seepage failure, need to carry out antiseepage processing to upper cover layer and bottom horizon d, especially near native rock boundary layer, to handle well especially, therefore need a kind of leakage preventing structure that is applicable to karst area storing facilities of water.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of leakage preventing structure that prevents the storing facilities of water seepages such as karst area, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of leakage preventing structure for karst area storing facilities of water, described karst area under ground portion comprises the covering layer on top and the horizon d of bottom, it between described covering layer and horizon d, is native rock boundary layer, under ground portion is divided into upstream side and downstream by described leakage preventing structure, described covering layer is provided with impervious wall, in impervious wall, be provided with multiple grout pipes, described horizon d is provided with curtain grouting district, described impervious wall is connected with curtain grouting district, described impervious wall bottom enters at least 1m of horizon d.
Preferably, be provided with the curtain grouting hole equal with grout pipe quantity in described curtain grouting district, described grout pipe is connected with curtain grouting hole.
Further, the axis in the axis of described grout pipe and curtain grouting hole is on same straight line.
Preferably, be also provided with reinforcement curtain grouting district between described impervious wall and curtain grouting district, the distance between the bottom in described reinforcement curtain grouting district and impervious wall bottom is greater than 2m.
Further, be provided with the multiple sleeve pipes that pass into horizon d in described covering layer, described curtain grouting district is provided with the curtain grouting hole equal with sleeve pipe quantity, and described sleeve pipe is connected with curtain grouting hole.
Further, described curtain grouting hole is in the downstream of grout pipe, and vertical distance between described curtain grouting axially bored line and grout pipe axis is not more than 0.5m.
As mentioned above, the utility model, for the leakage preventing structure of karst area storing facilities of water, has following beneficial effect:
The utility model adopts concrete cut at the covering layer of karst area, horizon d adopts curtain grouting structure, and for different forms of construction work, native rock boundary layer between covering layer and horizon d is adopted to different structures, guarantee that reservoir or other storing facilities of waters built in karst area can seepages.
Accompanying drawing explanation
Fig. 1 is the structural representation in curtain grouting district of constructing after the first Construction Anti-seepage wall of the utility model.
Fig. 2 is first the construct structural representation of Construction Anti-seepage wall behind curtain grouting district of the utility model.
In figure: the native rock boundary layer of 1 covering layer 2
3 horizon d 4 reinforcement curtain grouting districts
11 impervious wall 21 curtain grouting districts
22 sleeve pipe 111 grout pipes
211 curtain grouting holes
The specific embodiment
Structure that Figure of description illustrates, ratio, size etc., all contents in order to coordinate manual to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop in the scope that technology contents that the utility model discloses can contain.Simultaneously, in this manual, quote as " on ", the term such as D score, 'fornt', 'back', " centre ", also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, changing under technology contents, when being also considered as the enforceable category of the utility model without essence.
This leakage preventing structure has two kinds of embodiments in karst area, be respectively the rear Construction Anti-seepage wall 11 in the rear construction curtain grouting of first Construction Anti-seepage wall 11 district 21 and the curtain grouting district 21 that first constructs.Also there are some difference according to the different leakage preventing structures of embodiment.Described impervious wall 11 is concrete material.
Be illustrated in figure 1 the leakage preventing structure schematic diagram in the rear construction curtain grouting of first Construction Anti-seepage wall 11 district 21, described karst area under ground portion comprises the covering layer 1 on top and the horizon d 3 of bottom, it between covering layer 1 and horizon d 3, is native rock boundary layer 2, under ground portion is divided into upstream side and downstream by described leakage preventing structure, described covering layer 1 is provided with impervious wall 11, in impervious wall 11, be provided with multiple grout pipes 111, described horizon d 3 is provided with curtain grouting district 21, described impervious wall 11 is connected with curtain grouting district 21, in order to guarantee anti-seepage effect, described impervious wall 11 bottoms enter at least 1m of horizon d 3.Above-mentioned grout pipe 111 all extend into the position that impervious wall 11 is connected with curtain grouting district 21.
Because be the rear construction curtain grouting of first Construction Anti-seepage wall 11 district 21, so in the present embodiment, described curtain grouting district 21 is provided with the curtain grouting hole 211 equal with grout pipe 111 quantity in the present embodiment, and described grout pipe 111 is connected with curtain grouting hole 211.Further, the axis in the axis of described grout pipe 111 and curtain grouting hole 211 is on same straight line.After impervious wall 11 has been constructed, by grout pipe 111, be in the milk in curtain grouting district 21, grouting is divided into two steps, and the first step is native rock boundary layer 2 parts of perfusion, and this part will adopt segment, underflow, low pressure that lapies, fluid bowl and the indented pits of native rock boundary layer 2 parts etc. are filled with to real; Second step is to be in the milk in curtain grouting district 21, the slurries of perfusion enter into curtain grouting hole 211 from grout pipe 111, when this part is in the milk, the pressure of grouting will raise gradually, utilize the method for aperture sealing, the part of having filled with is above repeated to perfusion, further reach the object of antiseepage.
Be illustrated in figure 2 the leakage preventing structure schematic diagram of the rear Construction Anti-seepage wall 11 in curtain grouting district 21 of first constructing, described karst area under ground portion comprises the covering layer 1 on top and the horizon d 3 of bottom, it between covering layer 1 and horizon d 3, is native rock boundary layer 2, under ground portion is divided into upstream side and downstream by described leakage preventing structure, described covering layer 1 is provided with impervious wall 11, in impervious wall 11, be provided with multiple grout pipes 111, described horizon d 3 is provided with curtain grouting district 21, described impervious wall 11 is connected with curtain grouting district 21, and described impervious wall 11 bottoms enter at least 1m of horizon d 3.Above-mentioned grout pipe 111 all extend into the position that impervious wall 11 is connected with curtain grouting district 21.
Because be first to construct curtain grouting district 21 at Construction Anti-seepage wall 11 in the present embodiment, so be also provided with reinforcement curtain grouting district 4 between impervious wall 11 and curtain grouting district 21.
In the present embodiment, be provided with the multiple sleeve pipes 22 that pass into horizon d 3 in described covering layer 1, described curtain grouting district 21 is provided with the curtain grouting hole 211 equal with sleeve pipe 22 quantity, and described sleeve pipe 22 is connected with curtain grouting hole 211.When grouting, directly slurries are filled into from sleeve pipe 22 to curtain grouting district 21, after curtain grouting district 21 completes, then impervious wall 11 are constructed.In impervious wall 11, there is grout pipe 111, described curtain grouting hole 211 is in the downstream of grout pipe 111, according to impervious wall 11 thickness differences, vertical distance between curtain grouting hole 211 and grout pipe 111 is also different, but vertical distance is not more than 0.5m all the time between curtain grouting hole 211 and grout pipe 111, between impervious wall 11 and curtain grouting district 21, can well overlap guaranteeing.Impervious wall 11 constructed and reach desired strength after the lapies to native rock boundary layer 2, fluid bowl and indented pits are carried out consolidation by grouting again, realize the connection between impervious wall 11 and curtain grouting district 21 by the grouting to native rock boundary layer 2, grouting part is above-mentioned reinforcement curtain grouting district 4, distance between bottom and impervious wall 11 bottoms in described reinforcement curtain grouting district 4 is greater than 2m, could form complete closed area in reinforcement curtain grouting district 4 like this, prevent seepage.The object that reinforcement curtain grouting district 4 is set is: while first constructing curtain grouting district 21, horizon d 3 tops are not supported reliably, and the sleeve pipe 22 of grouting use will be deep at least 1m of horizon d 3, so the more difficult filling of native rock boundary layer 2 part is real, and in when grouting because so pressure is can not the too high top grouting effect to horizon d 3 poor, so only use from the grout pipe 111 of impervious wall 11, native rock boundary layer 2 is in the milk and could be effectively prevented seepage.
In sum, the utility model, for the leakage preventing structure of karst area storing facilities of water, can effectively solve the problem of karst area storing facilities of water seepage.So, have very high value and use meaning thereby the utility model has effectively overcome practical problems more of the prior art.
Above-mentioned embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.The utility model also has many aspects under the prerequisite without prejudice to overall thought, to improve, and all can, under spirit of the present utility model and category, can above-described embodiment be modified or be changed for person skilled in the art scholar.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (6)
1. the leakage preventing structure for karst area storing facilities of water, described karst area under ground portion comprises the covering layer (1) on top and the horizon d (3) of bottom, between described covering layer (1) and horizon d (3), it is native rock boundary layer (2), under ground portion is divided into upstream side and downstream by described leakage preventing structure, it is characterized in that: described covering layer (1) is provided with impervious wall (11), in impervious wall (11), be provided with multiple grout pipes (111), described horizon d (3) is provided with curtain grouting district (21), described impervious wall (11) is connected with curtain grouting district (21), described impervious wall (11) bottom enters at least 1m of horizon d (3).
2. the leakage preventing structure for karst area storing facilities of water according to claim 1, it is characterized in that: in described curtain grouting district (21), be provided with the curtain grouting hole (211) equal with grout pipe (111) quantity, described grout pipe (111) is connected with curtain grouting hole (211).
3. the leakage preventing structure for karst area storing facilities of water according to claim 2, is characterized in that: the axis of the axis of described grout pipe (111) and curtain grouting hole (211) is on same straight line.
4. the leakage preventing structure for karst area storing facilities of water according to claim 1, it is characterized in that: between described impervious wall (11) and curtain grouting district (21), be also provided with reinforcement curtain grouting district (4), the distance between the bottom in described reinforcement curtain grouting district (4) and impervious wall (11) bottom is greater than 2m.
5. the leakage preventing structure for karst area storing facilities of water according to claim 4, it is characterized in that: in described covering layer (1), be provided with the multiple sleeve pipes (22) that pass into horizon d (3), described curtain grouting district (21) is provided with the curtain grouting hole (211) equal with sleeve pipe (22) quantity, and described sleeve pipe (22) is connected with curtain grouting hole (211).
6. the leakage preventing structure for karst area storing facilities of water according to claim 5, it is characterized in that: described curtain grouting hole (211) is in the downstream of grout pipe (111), and vertical distance between described curtain grouting hole (211) axis and grout pipe (111) axis is not more than 0.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320712498.5U CN203639953U (en) | 2013-11-12 | 2013-11-12 | Impervious structure for water storing facility in karst region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320712498.5U CN203639953U (en) | 2013-11-12 | 2013-11-12 | Impervious structure for water storing facility in karst region |
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| Publication Number | Publication Date |
|---|---|
| CN203639953U true CN203639953U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320712498.5U Withdrawn - After Issue CN203639953U (en) | 2013-11-12 | 2013-11-12 | Impervious structure for water storing facility in karst region |
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| CN (1) | CN203639953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951711A (en) * | 2018-09-12 | 2018-12-07 | 中节能大地环境修复有限公司 | A kind of hazardous waste pollution joint vertical divider structure and its construction method for Bed Rock Region |
-
2013
- 2013-11-12 CN CN201320712498.5U patent/CN203639953U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951711A (en) * | 2018-09-12 | 2018-12-07 | 中节能大地环境修复有限公司 | A kind of hazardous waste pollution joint vertical divider structure and its construction method for Bed Rock Region |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20220406 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20220406 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |