CN109371919A - 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
- Publication number
- CN109371919A CN109371919A CN201811456009.8A CN201811456009A CN109371919A CN 109371919 A CN109371919 A CN 109371919A CN 201811456009 A CN201811456009 A CN 201811456009A CN 109371919 A CN109371919 A CN 109371919A
- Authority
- CN
- China
- Prior art keywords
- wall
- water
- core
- retaining structure
- tgxg
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/06—Earth-fill dams; Rock-fill dams
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
Abstract
The present invention 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 present invention 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 present invention 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 present invention relates to a kind of native stone water-retaining structures of seepage prevention of core wall, belong to the core-wall water-retaining structure in water power hydraulic engineering
Technical field.
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.
Summary of the invention
The first technical problem to be solved by the present invention is: providing easy for construction, the small seepage prevention of core wall of one kind
Native stone water-retaining structure.
The technical solution adopted by the present invention to solve the technical problems is: the native stone water-retaining structure of seepage prevention of core wall, including sets
In supratectal impervious wall construction platform, impervious wall construction platform is provided with water blocking body in core-wall two sides, in impervious wall construction
Layered arrangement has TGXG in water blocking body on 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.
The beneficial effects of the present invention are: it is layered the package loose filling body of water-retaining structure by using the above TGXG, point
The structural integrity that layer construction is formed is good, and bearing capacity is larger, easy construction.The slope of the free face of water-retaining structure is than can be by conventional
1:1.5 or 1:2 increase to 1:0.75~1:1.By high 40m, top width 10m temporary water dash structure for, the slope ratio of free face from
1:1.5 is decreased to 1:0.75, does not consider default riding track, then structure bottom width is decreased to 70m by 130m, and cross-sectional area is subtracted by 2800 ㎡
As low as 1600 ㎡, the native stone amount of filling reduce 42.8%；Water retaining structure bottom width reduces about 60m, construction time discharge structure (water conservancy diversion
Hole and diversion canal) upstream end will shorten about 60m, this will greatly reduce discharge structure people excavate, system combined bolting and shotcrete and
The project amounts such as reinforced concrete lining layer, greatly reduce construction investment；If the upstream temporary water dash building of the engineering, permanent gear
Water buildings and downstream temporary water dash building are all made of this structure, then will be more considerable to the reduction of construction investment.For
Permanent water retaining structure structure, the reduction of structural style will directly reduce stock ground expropriation of land range, stock ground excavated volume, supporting amount and heap
The freight volume of building stones saves construction investment.Due to enhancing the globality of water-retaining structure free face, its bearing capacity is increased,
The mechanical index requirement that material is then filled inside water-retaining structure can be reduced suitably, also be decreased to the Particle size requirements of filling material.
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 reduce the amount of filling
The solution of quality requirement reduces engineering construction difficulty；For permanent water retaining structure, if the mechanical index for filling material is wanted
Reduction is asked, then without finding material source to farther position, traffic route Facilities Construction investment can be reduced, material transport etc. is filled in reduction
Multinomial auxiliary expenses；In addition, filling the reduction that material requires, stock ground exploitation and overburden amount will due to the reduction of water-retaining structure figure
It can reduce, more engineering wastes can be also utilized, and this not only reduces stock ground expropriation of land ranges, reduced engineering construction and permanently used
Ground range reduces waste place range, and is beneficial to energy conservation consumption reduction, is conducive to environmental protection and water and soil conservation.
Detailed description of the invention
Fig. 1 is whole sectional view of the invention.
Fig. 2 is water-retaining structure partial enlarged view of the invention.
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
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
As depicted in figs. 1 and 2, the present invention includes the impervious wall construction platform 3 on coating 1, and impervious wall construction is flat
Platform 3 is provided with water blocking body in core-wall two sides, and layered arrangement has TGXG 4 in the water blocking body on impervious wall construction platform 3, soil
The permeable material that fills is provided between work grid 4 to form water blocking body.Loose filling body, which is wrapped up, by TGXG 4 forms whole knot
Structure can not only increase vertically to bearing capacity, but also can greatly increase horizontal direction bearing capacity, to increase water blocking building
The overall stability of object free face, easy construction, and it is significantly reduced structural style.The slope stability of the soil stone class water-retaining structure
Limit equilibrium method can be used to 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, combines the barrier performance of water-retaining structure, the core-wall in the present invention in 3 or more impervious wall construction platform, in geotechnique
Grid 4 influences elevation position below and uses geomembrane seepage prevention of core wall structure 12, and 12 lower end of geomembrane seepage prevention of core wall structure passes through
Nut cap concrete 13 is connect with core-wall below.It influences to can be used in this limited range of elevation or more in TGXG 4 existing
Pouring 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 |
|---|---|---|---|
| CN201811456009.8A CN109371919A (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 |
|---|---|---|---|
| CN201811456009.8A CN109371919A (en) | 2018-11-30 | 2018-11-30 | The native stone water-retaining structure of seepage prevention of core wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109371919A true CN109371919A (en) | 2019-02-22 |
Family
ID=65376324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811456009.8A Pending CN109371919A (en) | 2018-11-30 | 2018-11-30 | The native stone water-retaining structure of seepage prevention of core wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109371919A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227381A (en) * | 2020-10-17 | 2021-01-15 | 中电建十一局工程有限公司 | Construction method of asphalt concrete core wall of narrow foundation pit |
| CN113279374A (en) * | 2021-05-20 | 2021-08-20 | 中国电建集团贵阳勘测设计研究院有限公司 | Rockfill dam top earthquake-resistant wave-resistant structure and construction method |
| TWI756152B (en) * | 2021-05-06 | 2022-02-21 | 國立高雄科技大學 | Flood control bank with spillway type permeable weir embankment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000034587A1 (en) * | 1998-12-10 | 2000-06-15 | Carpi Tech Italia S.R.L. | Embankment dam and waterproofing method |
| CN102261053A (en) * | 2011-05-12 | 2011-11-30 | 河海大学 | Aseismatic measure of high earth-rock dam and construction method thereof |
| JP2015021286A (en) * | 2013-07-19 | 2015-02-02 | 東京インキ株式会社 | Connection structure of retaining wall |
| CN105133548A (en) * | 2015-10-10 | 2015-12-09 | 中国电建集团成都勘测设计研究院有限公司 | Earthquake-resistant structure for dam crest of high earth-rock dam and construction method of earthquake-resistant structure |
| CN205000297U (en) * | 2015-09-24 | 2016-01-27 | 中国电建集团成都勘测设计研究院有限公司 | A earthquake -resistant structure for meizoseismal area high earth -rock dam |
| CN206157755U (en) * | 2016-11-08 | 2017-05-10 | 中国电建集团成都勘测设计研究院有限公司 | Carry on anti - seepage prevention of dam foundation system of straining structure of double -deck level in deep overburden high dam |
| KR101739699B1 (en) * | 2016-07-20 | 2017-05-26 | 한국수자원공사 | Construction Method Of Geomembrane Core Rockfill Dam |
| CN209429056U (en) * | 2018-11-30 | 2019-09-24 | 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 |
-
2018
- 2018-11-30 CN CN201811456009.8A patent/CN109371919A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000034587A1 (en) * | 1998-12-10 | 2000-06-15 | Carpi Tech Italia S.R.L. | Embankment dam and waterproofing method |
| CN102261053A (en) * | 2011-05-12 | 2011-11-30 | 河海大学 | Aseismatic measure of high earth-rock dam and construction method thereof |
| JP2015021286A (en) * | 2013-07-19 | 2015-02-02 | 東京インキ株式会社 | Connection structure of retaining wall |
| CN205000297U (en) * | 2015-09-24 | 2016-01-27 | 中国电建集团成都勘测设计研究院有限公司 | A earthquake -resistant structure for meizoseismal area high earth -rock dam |
| CN105133548A (en) * | 2015-10-10 | 2015-12-09 | 中国电建集团成都勘测设计研究院有限公司 | Earthquake-resistant structure for dam crest of high earth-rock dam and construction method of earthquake-resistant structure |
| KR101739699B1 (en) * | 2016-07-20 | 2017-05-26 | 한국수자원공사 | Construction Method Of Geomembrane Core Rockfill Dam |
| CN206157755U (en) * | 2016-11-08 | 2017-05-10 | 中国电建集团成都勘测设计研究院有限公司 | Carry on anti - seepage prevention of dam foundation system of straining structure of double -deck level in deep overburden high dam |
| CN209429056U (en) * | 2018-11-30 | 2019-09-24 | 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 |
Non-Patent Citations (1)
| Title |
|---|
| 姚安华;葛云鹏;杨茂杰;: "景洪水电站二期围堰设计及施工", 水力发电, no. 04, pages 46 - 49 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227381A (en) * | 2020-10-17 | 2021-01-15 | 中电建十一局工程有限公司 | Construction method of asphalt concrete core wall of narrow foundation pit |
| CN112227381B (en) * | 2020-10-17 | 2022-03-11 | 中电建十一局工程有限公司 | Construction method of asphalt concrete core wall of narrow foundation pit |
| TWI756152B (en) * | 2021-05-06 | 2022-02-21 | 國立高雄科技大學 | Flood control bank with spillway type permeable weir embankment |
| CN113279374A (en) * | 2021-05-20 | 2021-08-20 | 中国电建集团贵阳勘测设计研究院有限公司 | Rockfill dam top earthquake-resistant wave-resistant structure and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202718138U (en) | Self-locking type ecological retaining wall structure | |
| CN103953008B (en) | A kind of modified mixed dam being applicable to Tailings Dam | |
| CN105201001B (en) | Composite seepage preventing structure for large karst cave in karst region and construction method thereof | |
| CN105840210A (en) | Box type tunnel-bottom composite arched tunnel lining structure with water drain function | |
| CN101634143A (en) | Method for treating spiral oil-extruding filling pile composite foundation in stratum containing soft clay | |
| CN105178327A (en) | Composite retaining structure of foundation pit project and construction method thereof | |
| CN101598028A (en) | Lining structure for super large section water-rich loess tunnel of high-speed railroad | |
| CN109371919A (en) | The native stone water-retaining structure of seepage prevention of core wall | |
| CN103806453A (en) | Reinforced soil structure and slide-resistant pile combined composite retaining structure | |
| CN109577365A (en) | A kind of pile formula drainage anchor rod barrier wall structure and its construction method | |
| Wang et al. | A study on the environmental geology of the Middle Route Project of the South–North water transfer | |
| CN209429056U (en) | The native stone water-retaining structure of seepage prevention of core wall | |
| CN204940298U (en) | A kind of Composite Enclosure Structure of base pit engineering | |
| CN207537975U (en) | Deep covering layer top panel Rockfill Dam based moisture barrier structure | |
| CN107761668B (en) | Coastal shore reservoir land-building type revetment structure and construction method thereof | |
| CN107881987A (en) | Deep covering layer top panel Rockfill Dam based moisture barrier structure | |
| CN206016823U (en) | π shapes plate and inverted arch combined type tunnel bottom lining structure | |
| CN207672344U (en) | Railway bed karez location pin-connected panel foundation stabilization construction | |
| Emiroglu | Influences on selection of the type of dam | |
| CN113737722A (en) | Have concurrently stone concrete barricade shore protection of view nature suitable for city river course | |
| CN107975378A (en) | The U-shaped wall base with architecture separates bearing type liner structure with bottom plate sound | |
| CN113123301A (en) | Partition structure of gravel soil core wall dam | |
| CN104631425B (en) | A kind of flyash of accelerating arranges the method oozing consolidation | |
| CN209482321U (en) | A kind of slope retaining structure | |
| CN109403356B (en) | Side slope supporting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |