CN209429056U - The native stone water-retaining structure of seepage prevention of core wall - Google Patents
The native stone water-retaining structure of seepage prevention of core wall Download PDFInfo
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- CN209429056U CN209429056U CN201822000433.3U CN201822000433U CN209429056U CN 209429056 U CN209429056 U CN 209429056U CN 201822000433 U CN201822000433 U CN 201822000433U CN 209429056 U CN209429056 U CN 209429056U
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Abstract
The utility model relates to a kind of native stone water-retaining structure of seepage prevention of core wall, belong to the core-wall water-retaining structure technical field in water power hydraulic engineering.The utility model includes being set to supratectal impervious wall construction platform, impervious wall construction platform is provided with water blocking body in core-wall two sides, layered arrangement has TGXG in the water blocking body on impervious wall construction platform, and the permeable material that fills is provided between TGXG to form water blocking body.The utility model wraps up loose filling body by TGXG and forms overall structure, it can not only increase vertically to bearing capacity, but also horizontal direction bearing capacity can be greatly increased, to increase the overall stability of water retaining structure free face, easy construction, and it is significantly reduced structural style.
Description
Technical field
The utility model relates to a kind of native stone water-retaining structures of seepage prevention of core wall, belong to the core-wall water blocking in water power hydraulic engineering
Technical field of structures.
Background technique
In water power hydraulic engineering, seepage prevention of core wall soil stone class water-retaining structure is a kind of very widely used structure type.
The design of permanent soil stone class water retaining structure is complicated, has very strict requirements from structural style, antiseepage mode to filling material,
The design requirement of interim soil stone class water retaining structure is relatively low.No matter permanent structure or temporary structure, native stone class water blocking builds
It is exactly that figure is huge that object, which is built, to the first impression of people.Since seepage prevention of core wall soil stone class water retaining structure is by loose sand gravel
Or block building stones are formed and filling and rolling, in order to guarantee the safety of construction time, water blocking phase and water-break phase, water retaining structure is met
The slope surface of the water surface and back side is relatively slow, and the upstream face slope ratio of permanent water-retaining structure (core wall rockfill dam) faces generally in 1:2 or more
When water-retaining structure (core-wall earth rock cofferdam) upstream face slope ratio generally in 1:1.5 or more, therefore, the bottom width of water-retaining structure just compared with
Greatly, discharge structure matched with permanently or temporarily water-retaining structure is also longer.Permanent soil stone class water-retaining structure is to filling material
It is required that it is generally higher, it needs by special geologic prospect, and the material source met the requirements is found by largely test.If
Material source near Project Areas is unqualified, just need to find and exploit farther material source, this not only increases attached traffic route facility newly,
And a large amount of freight need to be increased newly.Temporary water dash building in pre-construction phase can use the quality one for filling material
As it is poor, generally can only by reduce water retaining structure free face slope than with make up fill material quality deficiency, this can be into one
Step increases water-retaining structure figure, further increases discharge structure length.In addition, the temporary water dash in engineering early period is built
The material material source that fills of object construction period generally also can be insufficient, and reduction slope will become than the mode and material source deficiency of increase figure can not
The contradiction of reconciliation, engineering construction difficulty will be significantly greatly increased in this.Conventional clivia is more larger than the land occupation of native stone class water retaining structure, to filling out
Material requirements height is built, construction time discharge structure is longer, this will result directly in biggish engineering construction expropriation of land, increases material selection
Difficulty increases material source and exploits difficulty, increases material source and exploits waste amount, increase cinder field occupied area, increases material source Mining Transport road
Material freight is filled in road length, increase, this is unfavorable for the economic indicator for improving engineering construction.
Utility model content
First technical problem to be solved in the utility model is: it is anti-to provide a kind of easy for construction, small core-wall
The native stone water-retaining structure of infiltration.
The technical scheme adopted by the utility model to solve the technical problem is as follows: the native stone water-retaining structure of seepage prevention of core wall, packet
It includes and is set to supratectal impervious wall construction platform, impervious wall construction platform is provided with water blocking body in core-wall two sides, in cut-pff wall
Layered arrangement has TGXG in water blocking body on operation platform, and the permeable material that fills is provided between TGXG to form water blocking
Body.
Further, the permeable material that fills between TGXG is the stockpile that partial size is no more than 200mm.
Further, TGXG is arranged in water blocking body free face side；Space between TGXG and core-wall is logical
Stockpile is crossed to fill.
Further, stockpile of the space by partial size no more than 800mm between TGXG and core-wall fills
At, and the partial size of the stockpile is no more than the layering spacing of TGXG.
Further, laying reinforced steel in every layer of filling body between TGXG.
Further, water blocking body free face side is reserved with riding track in slope surface.
Further, riding track is arranged along slope surface every 6m~10m.
Further, core-wall influences elevation position use below more than impervious wall construction platform, in TGXG
Geomembrane seepage prevention of core wall structure, geomembrane seepage prevention of core wall structure lower end are connect by nut cap concrete with core-wall below.
Further, being sequentially arranged bedding material and Transition Materials between core-wall and water blocking body.
Further, water blocking body free face side is disposed with protection face board, the protection face of upstream face side in slope surface
Plate is cast-in-place or precast concrete facade panel, and the protection face board of back side side uses grass planting concrete.
It is loosely filled the beneficial effects of the utility model are: being layered package water-retaining structure by using the above TGXG
Body, the structural integrity that construction in layer is formed is good, and bearing capacity is larger, easy construction.The slope ratio of the free face of water-retaining structure can be by
Conventional 1:1.5 or 1:2 increases to 1:0.75~1:1.By high 40m, top width 10m temporary water dash structure for, free face
Slope ratio is decreased to 1:0.75 from 1:1.5, does not consider default riding track, then structure bottom width is decreased to 70m by 130m, cross-sectional area by
2800 ㎡ are decreased to 1600 ㎡, and the native stone amount of filling reduces 42.8%；Water retaining structure bottom width reduces about 60m, and construction time sluicing is built
About 60m will be shortened in upstream end by building object (diversion tunnel and diversion canal), this will be greatly reduced, and discharge structure people excavates, system is sprayed
The project amounts such as anchor supporting and reinforced concrete lining layer, greatly reduce construction investment；If the upstream temporary water dash of the engineering is built
Object, permanent water retaining structure and downstream temporary water dash building are all made of this structure, then will more to the reduction of construction investment
It is considerable.For permanent water retaining structure structure, the reduction of structural style will directly reduce stock ground expropriation of land range, stock ground excavated volume,
The freight volume of supporting amount and stockpile saves construction investment.Due to enhancing the globality of water-retaining structure free face, it is increased
Bearing capacity, then the mechanical index requirement that material is filled inside water-retaining structure can be reduced suitably, also to the Particle size requirements of filling material
It decreases.This will provide one kind for the temporary water dash building in pre-construction phase and had not only reduced the engineering amount of filling, but also can
The solution of the amount of filling quality requirement is reduced, engineering construction difficulty is reduced；For permanent water retaining structure, if filling material
Mechanical index requires to reduce, then without finding material source to farther position, can reduce traffic route Facilities Construction investment, reduction is filled out
Build the multinomial auxiliary expenses such as material transport；In addition, filling the reduction that material requires, stock ground exploitation due to the reduction of water-retaining structure figure
It will be reduced with overburden amount, more engineering wastes can be also utilized, and this not only reduces stock ground expropriation of land ranges, reduce engineering
Permanent land used range is built, reduces waste place range, and be beneficial to energy conservation consumption reduction, is conducive to environmental protection and water and soil is protected
It holds.
Detailed description of the invention
Fig. 1 is the whole sectional view of the utility model.
Fig. 2 is the water-retaining structure partial enlarged view of the utility model.
In the figure, it is marked as 1- coating, 2- basement rock, 3- impervious wall construction platform, 4- TGXG, 5- bedding material, 6- mistake
Cross material, 7- protection face board, 8- drainpipe, 9- ground line, 10- base covers boundary line, 11- concrete cut, and 12- geomembrane core-wall is anti-
Seep structure, 13- nut cap concrete, 14- grout curtain.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and embodiments.
As depicted in figs. 1 and 2, the utility model includes the impervious wall construction platform 3 on coating 1, and cut-pff wall is applied
Work platform 3 is provided with water blocking body in core-wall two sides, and layered arrangement has TGXG in the water blocking body on impervious wall construction platform 3
4, the permeable material that fills is provided between TGXG 4 to form water blocking body.By TGXG 4 wrap up loose filling body formed it is whole
Body structure can not only increase vertically to bearing capacity, but also can greatly increase horizontal direction bearing capacity, to increase water blocking
The overall stability of building free face, easy construction, and it is significantly reduced structural style.The slope surface of the soil stone class water-retaining structure
Stabilization can be used limit equilibrium method and be calculated.
To guarantee structural stability, the permeable material that fills between TGXG 4 is the stockpile that partial size is no more than 200mm.
In addition, to save integrated engineering investment, TGXG 4 can only be arranged in water blocking body free face side；TGXG 4
It is filled by stockpile in space between core-wall.Space to guarantee structural stability, between TGXG 4 and core-wall
Stockpile by partial size no more than 800mm fills, and the partial size of the stockpile is no more than between the layering of TGXG 4
Away from.The layering spacing of TGXG 4 is usually 50cm~100cm.
In order to increase the monolithic stability and bearing capacity of each layer, lays and add in every layer of filling body between TGXG 4
Gu reinforcing bar；In addition, also riding track can be reserved in slope surface in water blocking body free face side；Riding track is along slope surface every 6m~10m
Arrangement, riding track width are determined according to calculating.Riding track, which is arranged, can also increase the whole slope ratio of free face, and reduces next stage and fill
TGXG 4 and the bearing capacity of reinforced steel in body, so successively construction to form gear water column structure to facilitate.
If water-retaining structure height is lower, it is contemplated that entire leakage preventing structure is all made of cast-in-place concrete core-wall.To save work
Journey investment, combine the barrier performance of water-retaining structure, the core-wall in the utility model 3 or more impervious wall construction platform,
TGXG 4 influences elevation position below and uses geomembrane seepage prevention of core wall structure 12,12 lower end of geomembrane seepage prevention of core wall structure
It is connect by nut cap concrete 13 with core-wall below.It influences to adopt in this limited range of elevation or more in TGXG 4
With cast-in-place concrete seepage prevention of core wall.If being laid with reinforced steel in filling body, it is also possible to consider the influences of reinforced steel.
It has been sequentially arranged bedding material 5 and Transition Materials 6 between core-wall and water blocking body, on the one hand can protect leakage preventing structure, it is another
Aspect can prevent seepage failure.
Water blocking body free face side is disposed with protection face board 7 in slope surface.Water-retaining structure upstream face is by scour in order to prevent
It destroys, reinforces the monolithic stability of slope surface, cast-in-place or precast concrete facade panel can be used in the protection face board 7 of upstream face side.The gear
Water-bound back side side is contemplated that using grass planting concrete revetment, not only good water permeability, but also has afforestation effect, is conducive to change
Kind site operation image looks.Reinforced steel is anchored on protection face board 7 in addition, being also contemplated that, while being contemplated that setting row
Water pipe 8.
Claims (10)
1. the native stone water-retaining structure of seepage prevention of core wall, including the impervious wall construction platform (3) being set on coating (1), cut-pff wall is applied
Work platform (3) is provided with water blocking body in core-wall two sides, it is characterised in that: divides in the water blocking body on impervious wall construction platform (3)
Layer arrangement has TGXG (4), and the permeable material that fills is provided between TGXG (4) to form water blocking body.
2. the native stone water-retaining structure of seepage prevention of core wall as described in claim 1, it is characterised in that: saturating between TGXG (4)
It is the stockpile that partial size is no more than 200mm that water, which fills material,.
3. the native stone water-retaining structure of seepage prevention of core wall as described in claim 1, it is characterised in that: TGXG (4) is arranged in gear
Water body free face side；It is filled by stockpile in space between TGXG (4) and core-wall.
4. the native stone water-retaining structure of seepage prevention of core wall as claimed in claim 3, it is characterised in that: TGXG (4) and core-wall it
Between space filled by partial size no more than the stockpile of 800mm, and the partial size of the stockpile is no more than TGXG
(4) layering spacing.
5. the native stone water-retaining structure of seepage prevention of core wall as described in claim 1, it is characterised in that: every between TGXG (4)
Reinforced steel is laid in layer filling body.
6. the native stone water-retaining structure of seepage prevention of core wall as described in claim 1, it is characterised in that: water blocking body free face side is on slope
Riding track is reserved on face.
7. the native stone water-retaining structure of seepage prevention of core wall as claimed in claim 6, it is characterised in that: riding track along slope surface every 6m~
10m arrangement.
8. the native stone water-retaining structure of seepage prevention of core wall as claimed in any of claims 1 to 7 in one of claims, it is characterised in that: core-wall exists
Elevation position below is influenced using geomembrane seepage prevention of core wall structure more than impervious wall construction platform (3), in TGXG (4)
(12), geomembrane seepage prevention of core wall structure (12) lower end is connect by nut cap concrete (13) with core-wall below.
9. the native stone water-retaining structure of seepage prevention of core wall as claimed in any of claims 1 to 7 in one of claims, it is characterised in that: core-wall with
Bedding material (5) and Transition Materials (6) have been sequentially arranged between water blocking body.
10. the native stone water-retaining structure of seepage prevention of core wall as claimed in any of claims 1 to 7 in one of claims, it is characterised in that: water blocking body
Free face side is disposed with protection face board (7) in slope surface, and the protection face board (7) of upstream face side is cast-in-place or precast concrete
The protection face board (7) of panel, back side side uses grass planting concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822000433.3U CN209429056U (en) | 2018-11-30 | 2018-11-30 | The native stone water-retaining structure of seepage prevention of core wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822000433.3U CN209429056U (en) | 2018-11-30 | 2018-11-30 | The native stone water-retaining structure of seepage prevention of core wall |
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| CN209429056U true CN209429056U (en) | 2019-09-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371919A (en) * | 2018-11-30 | 2019-02-22 | 中国电建集团成都勘测设计研究院有限公司 | The native stone water-retaining structure of seepage prevention of core wall |
| CN111576340A (en) * | 2020-05-25 | 2020-08-25 | 浙江省城乡规划设计研究院 | Combined gabion anti-seepage isolation structure and construction method thereof |
-
2018
- 2018-11-30 CN CN201822000433.3U patent/CN209429056U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371919A (en) * | 2018-11-30 | 2019-02-22 | 中国电建集团成都勘测设计研究院有限公司 | The native stone water-retaining structure of seepage prevention of core wall |
| CN111576340A (en) * | 2020-05-25 | 2020-08-25 | 浙江省城乡规划设计研究院 | Combined gabion anti-seepage isolation structure and construction method thereof |
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