CN205999912U - Deep covering layer foundation anti-seepage wall construction - Google Patents
Deep covering layer foundation anti-seepage wall construction Download PDFInfo
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- CN205999912U CN205999912U CN201621037861.8U CN201621037861U CN205999912U CN 205999912 U CN205999912 U CN 205999912U CN 201621037861 U CN201621037861 U CN 201621037861U CN 205999912 U CN205999912 U CN 205999912U
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- wall
- vertical gap
- covering layer
- cut
- piecemeal
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Abstract
The utility model discloses a kind of deep covering layer foundation anti-seepage wall construction, belong to hydroelectric project design field, a kind of deep covering layer foundation anti-seepage wall construction for avoiding concrete cut from producing crack problem is provided, including the concrete cut being arranged in deep covering layer, the concrete cut includes polylith piecemeal body of wall；A vertical gap is left between the vertical side of two pieces of adjacent piecemeal bodies of wall, plastic filler is filled with the vertical gap, and at least side of the vertical gap is provided with attached wall, the attached wall is completely covered in vertical gap, and attached wall is while the overlap joint being close to the part of vertical gap both sides piecemeal body of wall is coordinated.The utility model has been broken in traditional approach by cut-pff wall by the way of integrative-structure, by concrete cut piecemeal is arranged, and the vertical gap of reserved relative movement deformation or sliding deformation, can so reduce body of wall internal stress size, and then the situation that cut-pff wall produces crack can be reduced.
Description
Technical field
The utility model is related to hydroelectric project design field, more particularly to a kind of deep covering layer foundation anti-seepage wall knot
Structure.
Background technology
Deep covering layer is a kind of geological structure that China's hydroelectric project exploitation in recent years is commonly encountered, and it has structure pine
Scattered, ulking thickness is big, can be usually reached hundred meters, or even hundreds of rice；While feature, its composition such as variation of lithological is big, water penetration is strong
To float based on boulder and cobble, block rubble, Extra-fine sand etc., particle composition is partially thick, and it is main body by coarse grain that grading curve is in all
Steep type structure lacks median diameter under normal circumstances to the acinose texture of high order smooth pattern；Therefore, in such address structure usually
It is susceptible to the situation of underground piping.
Checkdam is built on this deep covering layer, its seepage deformation problem is more projected, and therefore prosecutor is oozed for the dam foundation
The selection of case is directly connected to operation safety and the economic benefit of engineering, is a key technology for building dam on deep covering layer.
At present, cut-pff wall vertical seepage control is first-selected, most reliable measure.Divide by cut-off wall material, concrete for hydraulic structure antiseepage
Wall mainly have normal concrete cut-pff wall, armored concrete cut-pff wall, Clay-concrete cut-pff wall, plastic concrete cut-off wall and
Mortar cut-pff wall；Task is undertaken by cut-pff wall to divide, have antiseepage, load-bearing, anti-shearing functions.Cut-pff wall as underwater casting structure, by force
Degree is its important indicator；As cut-pff wall is in construction and runtime, its stressing conditions is complicated, thus easily produces crack, especially
Dash cut-pff wall is headed on as very with high dam, large area.Due to cut-pff wall, which needs to realize antiseepage purpose, therefore existing cut-pff wall
Whole installation is typically adopted, i.e., whole cut-pff wall is one moulding by casting, avoids split from pouring into a mould and naturally occurring seam with this
There is the situation of seepage at gap.In the above cases, for preventing crack from producing, it is common practice to anti-using armored concrete
Wall is oozed, to resist, by strengthening its intensity, the pulling force which is subject to；Or using plastic concrete cut-off wall and mortar cut-pff wall,
To prevent crack from producing by providing certain deflection.However, the shortcoming of armored concrete cut-pff wall is steel reinforcement cage processing
It is limited in scope, constructs complex and relatively costly；And the strength of wall body of plastic concrete cut-off wall or mortar cut-pff wall is low,
Its opposing percolation ability is poor.
Utility model content
The technical problem that the utility model is solved is to provide a kind of depth for avoiding concrete cut from producing crack problem
Thick-covering foundation anti-seepage wall construction, which can ensure the strength of wall body of cut-pff wall, while easy construction, cost are relatively low.
The utility model solves the technical scheme adopted by its technical problem：Deep covering layer foundation anti-seepage wall construction,
Including the concrete cut being arranged in deep covering layer, the concrete cut includes polylith piecemeal body of wall, and polylith divides
Block body of wall forms overall concrete cut after mutually splicing by its vertical side；In the perpendicular of two pieces of adjacent piecemeal bodies of wall
To a vertical gap is left between side, be filled with plastic filler in the vertical gap, and in the vertical gap
At least side is provided with attached wall, and the attached wall is completely covered in vertical gap, and attached wall is while divide with vertical gap both sides
The overlap joint that the part of block body of wall is close to coordinates.
It is further：The thickness of the piecemeal body of wall is A, and the width of the vertical gap is D, the width of the attached wall
For L；And have 0.5A≤D≤5A；2D≤L≤10D.
It is further：The thickness of the attached wall is B, and has 0.5A≤B≤A.
It is further：The plastic filler is clay, loess or sandy soil.
It is further：Attached wall is respectively arranged with the both sides of the vertical gap.
It is further：Along infiltration direction, the upstream side of the vertical gap is provided with attached wall.
The beneficial effects of the utility model are：Break in traditional approach by cut-pff wall by the way of integrative-structure, led to
Cross and concrete cut piecemeal is arranged, while corresponding vertical gap is reserved, and corresponding plasticity is filled in gap fill out
Material, can so allow adjacent piecemeal body of wall that relative movement deformation or sliding deformation occur, can achieve to reduce in body of wall
Stress intensity, and finally reduce the situation that cut-pff wall produces crack.In addition concrete anti-seepage of the present utility model within the walls may be used
Arrange steel reinforcement cage, or for steel reinforcement cage setting can based on other purposes rather than in order to prevent concrete cut produce split
Seam.In addition, with respect to using plastic concrete cut-off wall or mortar cut-pff wall, concrete cut described in the utility model,
Its strength of wall body is higher, resists itself percolation ability higher；And concrete cut described in the utility model its constructed
Journey is simple, advantage of lower cost.
Description of the drawings
Fig. 1 is the planar structure schematic diagram of deep covering layer foundation anti-seepage wall construction described in the utility model；
Fig. 2 is the dimension mark schematic diagram of each structure in Fig. 1；
In figure is labeled as：Deep covering layer 1, piecemeal body of wall 2, vertical gap 3, attached wall 4, the thickness A of piecemeal body of wall, attached wall
Thickness B, the width D of vertical gap, the width L of attached wall.
Specific embodiment
With reference to the accompanying drawings and detailed description the utility model is further illustrated.
As shown in Figures 1 and 2, deep covering layer foundation anti-seepage wall construction described in the utility model, including being arranged on
Concrete cut in deep covering layer 1, the concrete cut include polylith piecemeal body of wall 2, and polylith piecemeal body of wall 2 leads to
Cross after its vertical side mutually splices and form overall concrete cut；Vertical side in two pieces of adjacent piecemeal bodies of wall 2
Between leave a vertical gap 3, be filled with plastic filler in the vertical gap 3, and in the vertical gap 3 at least
Side is provided with attached wall 4, and the attached wall 4 is completely covered in vertical gap 3, and attached wall 4 is while divide with 3 both sides of vertical gap
The overlap joint that the part of block body of wall 2 is close to coordinates.
Wherein, so-called plastic filler, refers to the filler that certain deflection can occur after stress, between filling it into vertically
After in gap 3, on the one hand which on the other hand can be allowed to occur in stress to playing certain anti-seepage effect at vertical gap 3
Certain deformation, allows for adjacent piecemeal body of wall 2 and relative movement deformation or sliding deformation occurs.Fill out as specific plasticity
Material, using relatively inexpensive, and can be easy to clay, loess or the sandy soil that job site directly obtains.
Wherein, concrete cut using normal concrete cut-pff wall or can adopt armored concrete cut-pff wall；This reality
In new, that concrete cut constitutes after mutually being spliced by polylith piecemeal body of wall 2 rather than be integrally formed, its connecting method
It is that polylith piecemeal body of wall 2 is mutually spliced by its vertical side, specifically can refer to shown in accompanying drawing.Due at adjacent two pieces points
A vertical gap 3 is left between the vertical side of block body of wall 2, while being filled with plastic filler in vertical gap 3, therefore can be permitted
There is a certain amount of relative movement or the changing of the relative positions in perhaps adjacent two pieces of piecemeal bodies of wall 2, thus can avoid using the mixed of integrative-structure
The situation in crack is susceptible in the case of solidifying soil cut-pff wall.
In addition, in the utility model, by the piecemeal body of wall 2 for being overlapped on 3 both sides of vertical gap for being close to attached wall 4
On, sealing is realized by snug fit of the attached wall 4 with piecemeal body of wall 2, the anti-seepage effect to vertical gap 3 is strengthened with this；Typically
, attached wall 4 may be configured as being overlapped on the piecemeal body of wall 2 of both sides symmetrically.Under normal circumstances in the vertical gap 3 extremely
Few side is provided with attached wall 4；It is furthermore preferred that along infiltration direction, attached wall 4 can be arranged in the upstream side of piecemeal body of wall 2；Wherein
The upstream side of so-called piecemeal body of wall 2, refers to the higher side of hydraulic pressure, that is, seep water be from upstream side towards downstream.
So, by attached wall 4 being arranged in the upstream side of piecemeal body of wall 2, apply certain pressure using hydraulic pressure to attached wall 4, to strengthen
Snug fit relation between attached wall 4 and piecemeal body of wall 2, and then strengthen anti-seepage effect.Certainly, it is furthermore preferred that can also be described
The both sides of vertical gap 3 are respectively arranged with attached wall 4, i.e., be respectively provided with attached wall 4 in the upstream side of piecemeal body of wall 2 and downstream.
More generally, the utility model can be using following concrete arrange parameter, to guarantee the antiseepage effect at the vertical gap 3
Really：The thickness of the piecemeal body of wall 2 is A, and the width of the vertical gap 3 is D, and the width of the attached wall 4 is L；And have 0.5A
≤ D≤5A also can be determined by the practical distortion amount of 3 both sides of vertical gap；2D≤L≤10D.In addition, for attached wall 4
Thickness, can be further according to following setting：The thickness of the attached wall 4 is B, and has 0.5A≤B≤A.For example, for concrete feelings
Condition, may be configured as：D=2A, L=3D=6A, B=0.7A.
General, in the utility model concrete cut, its 2 general in the vertical direction of monolithic piecemeal body of wall is one
Body structure, and monolithic piecemeal body of wall 2 can by cast be integrally formed；And under normal circumstances can be by the bottom of concrete cut
Portion part is deep in the basement rock of 1 lower section of deep covering layer.And attached wall 4 is usually arranged as the height phase with concrete cut
With；And the upper and lower ends of attached wall 4 are alignd with concrete cut respectively.
Claims (6)
1. deep covering layer foundation anti-seepage wall construction, including the concrete cut being arranged in deep covering layer (1), its feature
It is：The concrete cut includes polylith piecemeal body of wall (2), and polylith piecemeal body of wall (2) is mutually spelled by its vertical side
Overall concrete cut is formed after connecing；Between leaving one between the vertical side of two pieces of adjacent piecemeal bodies of wall (2) vertically
Gap (3), is filled with plastic filler in the vertical gap (3), and is provided with least side of the vertical gap (3)
Attached wall (4), attached wall (4) are completely covered in vertical gap (3), and attached wall (4) is while divide with vertical gap (3) both sides
The overlap joint that the part of block body of wall (2) is close to coordinates.
2. deep covering layer foundation anti-seepage wall construction as claimed in claim 1, it is characterised in that：Piecemeal body of wall (2)
Thickness is A, and the width of vertical gap (3) is D, and the width of attached wall (4) is L；And have 0.5A≤D≤5A；2D≤L≤
10D.
3. deep covering layer foundation anti-seepage wall construction as claimed in claim 2, it is characterised in that：The thickness of attached wall (4)
For B, and there is 0.5A≤B≤A.
4. deep covering layer foundation anti-seepage wall construction as claimed in claim 1, it is characterised in that：The plastic filler is viscous
Soil, loess or sandy soil.
5. the deep covering layer foundation anti-seepage wall construction as any one of Claims 1-4, it is characterised in that：Described
The both sides of vertical gap (3) are respectively arranged with attached wall (4).
6. the deep covering layer foundation anti-seepage wall construction as any one of Claims 1-4, it is characterised in that：Along infiltration
Direction, is provided with attached wall (4) in the upstream side of the vertical gap (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621037861.8U CN205999912U (en) | 2016-09-05 | 2016-09-05 | Deep covering layer foundation anti-seepage wall construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621037861.8U CN205999912U (en) | 2016-09-05 | 2016-09-05 | Deep covering layer foundation anti-seepage wall construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205999912U true CN205999912U (en) | 2017-03-08 |
Family
ID=58194003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621037861.8U Withdrawn - After Issue CN205999912U (en) | 2016-09-05 | 2016-09-05 | Deep covering layer foundation anti-seepage wall construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205999912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223352A (en) * | 2016-09-05 | 2016-12-14 | 中国电建集团成都勘测设计研究院有限公司 | Deep covering layer foundation anti-seepage wall construction |
-
2016
- 2016-09-05 CN CN201621037861.8U patent/CN205999912U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223352A (en) * | 2016-09-05 | 2016-12-14 | 中国电建集团成都勘测设计研究院有限公司 | Deep covering layer foundation anti-seepage wall construction |
| CN106223352B (en) * | 2016-09-05 | 2018-06-15 | 中国电建集团成都勘测设计研究院有限公司 | Deep covering layer foundation anti-seepage wall construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170308 Effective date of abandoning: 20180615 |
|
| AV01 | Patent right actively abandoned |