CN209603075U - A kind of impervious body leak stopping ruggedized construction - Google Patents
A kind of impervious body leak stopping ruggedized construction Download PDFInfo
- Publication number
- CN209603075U CN209603075U CN201822118631.XU CN201822118631U CN209603075U CN 209603075 U CN209603075 U CN 209603075U CN 201822118631 U CN201822118631 U CN 201822118631U CN 209603075 U CN209603075 U CN 209603075U
- Authority
- CN
- China
- Prior art keywords
- sequence
- adhesive bond
- grouting
- natural diffuseness
- grout hole
- 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.)
- Active
Links
Abstract
The utility model provides a kind of impervious body leak stopping ruggedized construction, the dam crest including earth and rockfill dam；I sequence grout hole and II sequence grout hole are drilled in the dam crest, I sequence grout hole and II sequence grout hole are along the extending direction setting of damaged geomembrane；In dam crest, there is I sequence grouting natural diffuseness adhesive bond in the water blocking side of Po Sun geomembrane, I sequence grouting natural diffuseness adhesive bond and I sequence grout hole are coaxial, have II sequence grouting natural diffuseness adhesive bond in the land side of damaged geomembrane, II sequence grouting natural diffuseness adhesive bond and II sequence grout hole are coaxial；I sequence grouting natural diffuseness adhesive bond and II sequence are in the milk the cementing body length of natural diffuseness quite and I sequence grouting natural diffuseness adhesive bond and II sequence are in the milk, and hole length is all larger than the length of damaged geomembrane.The utility model targetedly can carry out quick blocking reinforcing to concentrative seepage point, save engineering cost, shorten the blocking construction duration.
Description
Technical field
The utility model relates to a kind of impervious body leak stopping ruggedized constructions, belong to the reinforcement of earth rockfill dam of hydraulic and hydroelectric engineering
Technical field.
Background technique
In recent years, in Medium & Small Earth Rock Dam and the earth rock cofferdam construction of the engineerings such as water conservancy, water power, geomembrane seepage prevention of core wall
Structure application is gradually extensive, when geomembrane seam quality problem or other reasons, which lead to geomembrane damage, to fail in construction and
Shi Faxian remedies, dam water blocking when discovery leakage serious situation happen occasionally, need to be remedied using leak stopping reinforcement measure.It is existing
There is technology usually to pass through and add one of concrete cut or jet grouted barrier wall substitution, increases engineering cost and construction work
Phase.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of impervious body leak stopping ruggedized construction, the impervious body is stifled
Leaking ruggedized construction targetedly can carry out quick blocking reinforcing to concentrative seepage point, save engineering cost, shorten leak stopping and apply
The work duration.
The utility model is achieved by the following technical programs.
A kind of impervious body leak stopping ruggedized construction provided by the utility model, the dam crest including earth and rockfill dam；It is bored in the dam crest
There are I sequence grout hole and II sequence grout hole, I sequence grout hole and II sequence grout hole are along the extending direction setting of damaged geomembrane；
In dam crest, there are I sequence grouting natural diffuseness adhesive bond, I sequence grouting natural diffuseness adhesive bond in the water blocking side of Po Sun geomembrane
It is coaxial with I sequence grout hole, there is II sequence grouting natural diffuseness adhesive bond in the land side of damaged geomembrane, II sequence grouting nature expands
It dissipates adhesive bond and II sequence grout hole is coaxial；I sequence grouting natural diffuseness adhesive bond and the II sequence grouting cementing body length phase of natural diffuseness
When and I sequence grouting natural diffuseness adhesive bond and II sequence grouting hole length be all larger than the length of damaged geomembrane；It is in the milk certainly in I sequence
So there is I sequence grouting seepage flow diffusion adhesive bond by damaged geomembrane between diffusion adhesive bond and II sequence grouting natural diffuseness adhesive bond
Package.
Between the distance between the I sequence grout hole and the geomembrane of breakage, II sequence grout hole and the geomembrane of breakage
Distance is 0.4m.
I sequence grouting natural diffuseness adhesive bond and II sequence grouting natural diffuseness adhesive bond by controlling be in the milk at
Type.
Length difference is 2m or more between the I sequence grouting natural diffuseness adhesive bond and I sequence grouting seepage flow diffusion adhesive bond.
The radius of the I sequence grouting natural diffuseness adhesive bond is the distance between I sequence grout hole and damaged geomembrane
1.2 times or more.
The radius of the II sequence grouting natural diffuseness adhesive bond is the distance between II sequence grout hole and damaged geomembrane
1.2 times or more.
The grouting slurry infiltration coefficient of the I sequence grouting natural diffuseness adhesive bond and II sequence grouting natural diffuseness adhesive bond is not
Greater than 10-6cm/s。
The I sequence grouting natural diffuseness adhesive bond, I sequence grouting seepage flow diffusion adhesive bond, II sequence grouting natural diffuseness are cementing
Body spreads adhesive bond, I sequence grouting natural diffuseness adhesive bond, II sequence grouting natural diffuseness glue at the time of molding, according to I sequence grouting seepage flow
The successively slurry molding of the sequence of knot body, wherein I sequence grouting natural diffuseness adhesive bond and I sequence grouting seepage flow diffusion adhesive bond are by I
Sequence grout hole completes grouting, and II sequence is in the milk natural diffuseness adhesive bond by the completion grouting of II sequence grout hole.
The utility model has the beneficial effects that: quick blocking reinforcing targetedly can be carried out to concentrative seepage point,
Engineering cost is saved, the blocking construction duration is shortened.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the utility model.
In figure: the geomembrane of 1- breakage, 2- intact geomembrane, 3- dam crest, 4- loaded filter, 5-I sequence grout hole, 6-I sequence
Be in the milk natural diffuseness adhesive bond, and 7-I sequence grouting seepage flow spreads adhesive bond, 8-II sequence grout hole, 9-II sequence grouting natural diffuseness glue
Knot body, a- geomembrane plane projection region, the distance of b- grout hole to geomembrane plane projection zone boundary, h- grouting hole depth,
The geomembrane bottom depth of h1- breakage, h2- grouting hole section, r- grouting natural diffuseness radius.
Specific embodiment
Be described further below the technical solution of the utility model, but claimed range be not limited to it is described.
A kind of impervious body leak stopping ruggedized construction as shown in Figure 1, the dam crest 3 including earth and rockfill dam；I is drilled in the dam crest 3
The extending direction of sequence grout hole 5 and II sequence grout hole 8, I sequence grout hole 5 and II sequence grout hole 8 along damaged geomembrane 1 is set
It sets；In dam crest 3, there are I sequence grouting natural diffuseness adhesive bond 6, I sequence grouting natural diffuseness in the water blocking side of Po Sun geomembrane 1
Adhesive bond 6 and I sequence grout hole 5 is coaxial, has II sequence grouting natural diffuseness adhesive bond 9, II in the land side of damaged geomembrane 1
Sequence grouting natural diffuseness adhesive bond 9 and II sequence grout hole 8 is coaxial；I sequence grouting natural diffuseness adhesive bond 6 and II sequence grouting nature expand
It dissipates 9 length of adhesive bond quite and I sequence grouting natural diffuseness adhesive bond 6 and 8 length of II sequence grout hole is all larger than damaged geomembrane
1 length；Being in the milk between natural diffuseness adhesive bond 6 and II sequence grouting natural diffuseness adhesive bond 9 in I sequence has I sequence grouting seepage flow to expand
Adhesive bond 7 is dissipated to wrap up damaged geomembrane 1.
The geomembrane 1 of the distance between the I sequence grout hole 5 and damaged geomembrane 1, II sequence grout hole 8 and breakage it
Between distance be 0.4m.
I sequence grouting natural diffuseness adhesive bond 6 and II sequence grouting natural diffuseness adhesive bond 9 by controlling grouting at
Type.
Length difference is 2m or more between the I sequence grouting natural diffuseness adhesive bond 6 and I sequence grouting seepage flow diffusion adhesive bond 7.
The radius of the I sequence grouting natural diffuseness adhesive bond 6 is the distance between I sequence grout hole 5 and damaged geomembrane 1
1.2 times or more.
The radius of II sequence grouting natural diffuseness adhesive bond 9 be between II sequence grout hole 8 and the geomembrane 1 of breakage away from
From 1.2 times or more.
The grouting slurry infiltration coefficient of the I sequence grouting natural diffuseness adhesive bond 6 and II sequence grouting natural diffuseness adhesive bond 9
No more than 10-6cm/s。
The I sequence grouting natural diffuseness adhesive bond 6, I sequence grouting seepage flow diffusion adhesive bond 7, II sequence grouting natural diffuseness glue
Knot body 9 spreads adhesive bond 7, I sequence grouting natural diffuseness adhesive bond 6, II sequence grouting nature at the time of molding, according to I sequence grouting seepage flow
The sequence successively slurry molding of adhesive bond 9 is spread, wherein I sequence grouting natural diffuseness adhesive bond 6 and the grouting seepage flow diffusion of I sequence are cementing
Body 7 is completed to be in the milk by I sequence grout hole 5, and II sequence is in the milk natural diffuseness adhesive bond 9 by the completion grouting of II sequence grout hole 8.
In general:
I sequence grout hole 5 arrives the geomembrane plane projection region side a positioned at the water blocking side of geomembrane a from 3 aperture of earth and rockfill dam top
The safe distance b on boundary generally takes 0.4m, geomembrane 1 bottom boundaries depth h1+ the overlap distance d, overlap distance d of hole depth h=breakage
2m is generally taken, hole slope n≤hole depth h × safe distance b is allowed, controlled grouting, specific strengthening motoring are carried out to grouting hole section h2
It is determined according to filling body material by test.
I sequence is in the milk natural diffuseness adhesive bond 6 and is filled with the slurries being in the milk to I sequence grout hole 5 by natural diffuseness and native stone
Expect cementing formation, osmotic coefficient k≤10-6Cm/s, radius r >=safe distance b × 1.2.
I sequence grouting seepage flow diffusion adhesive bond 7, which is seeped water to take away with the slurries for being in the milk to I sequence grout hole 5, fills material with native stone
Cementing formation, osmotic coefficient k≤10-6cm/s。
II sequence grout hole 8 is implemented again when the grouting of I sequence grout hole 5 fails and blocks, and from 1 aperture of earth and rockfill dam top, is located at geotechnique
The land side of film a, the safe distance b to the geomembrane plane projection region boundary a generally take 0.4m, the geotechnique of hole depth h=breakage
Film 1 bottom boundaries depth h1+ overlap distance d, overlap distance d generally take 2m, allow hole slope n≤hole depth h × safe distance b, right
The hole section h2 that is in the milk carries out controlled grouting, and specific strengthening motoring is determined according to filling body material by test.
II sequence is in the milk seepage flow natural diffuseness adhesive bond 9 and passes through natural diffuseness and soil with the slurries being in the milk to II sequence grout hole 7
Stone fills the cementing formation of material, osmotic coefficient k≤10-6Cm/s, radius r >=safe distance b × 1.2.
When the practice of construction of the utility model, generally according to following steps:
1, breakthrough detects: being 1. respectively arranged 1 survey line along antiseepage axis and its upstream and downstream side in dam crest；2. using two
Kind and the above electromagnetic method instrument, carry out comprehensive survey；3. being analyzed according to detection result and determining concentrative seepage region.
2, controlled grouting blocks: 1. determining grouting range, generally expands 2m in blowby area range surrounding；2. determining grout hole
Arrangement, spacing are determined by test according to soil strength variation, are generally chosen as 1m, and the grout hole along antiseepage axis direction both ends answers cloth
It sets the grout hole in leakage region 2m, along vertical axis direction both ends and arranges 50cm other than geomembrane plane projection region, it is internal
By array pitch control；3. well cementing, other than the side geomembrane that meets water first row as grouting I sequence round, land side geomembrane with
Outer first row is as grouting II sequence round, grouting pressure 0.2~0.8MPa, I sequence the hole general 500~800kg/m of grout consumption, II
Sequence hole grout consumption general 500~600kg/m takes according to consumption slurry abnormal conditions in filling process plus sand plus accelerator, reduces
The treatment measures such as pressure；4. observing the plugging effect after the grouting of I sequence round, II sequence round is carried out if failing to block completely and is filled
Slurry determines whether to increase grout hole number of rows between I sequence and II sequence round further according to II sequence round grout sealing effect, increases row
Grout hole must be in the milk at the top of dam (cofferdam), recycled until blocking completely according to this.
Claims (8)
1. a kind of impervious body leak stopping ruggedized construction, the dam crest (3) including earth and rockfill dam, it is characterised in that: be drilled in the dam crest (3)
I sequence grout hole (5) and II sequence grout hole (8), I sequence grout hole (5) and II sequence grout hole (8) are along damaged geomembrane (1)
Extending direction setting；In dam crest (3), there is I sequence to be in the milk natural diffuseness adhesive bond (6) in the water blocking side of Po Sun geomembrane (1),
I sequence grouting natural diffuseness adhesive bond (6) and I sequence grout hole (5) coaxially, in the land side of damaged geomembrane (1) have the filling of II sequence
It starches natural diffuseness adhesive bond (9), II sequence is in the milk natural diffuseness adhesive bond (9) and II sequence grout hole (8) is coaxial；I sequence grouting nature
It spreads adhesive bond (6) and II sequence grouting natural diffuseness adhesive bond (9) length is suitable, I sequence grouting natural diffuseness adhesive bond (6) and II
Sequence grout hole (8) length is all larger than the length of damaged geomembrane (1)；It is filled in I sequence grouting natural diffuseness adhesive bond (6) and II sequence
It starches between natural diffuseness adhesive bond (9), damaged geomembrane (1) is wrapped up in I sequence grouting seepage flow diffusion adhesive bond (7).
2. impervious body leak stopping ruggedized construction as described in claim 1, it is characterised in that: the I sequence grout hole (5) and breakage
The distance between the distance between geomembrane (1), II sequence grout hole (8) and geomembrane (1) of breakage are 0.4m.
3. impervious body leak stopping ruggedized construction as described in claim 1, it is characterised in that: the I sequence grouting natural diffuseness is cementing
Body (6) and II sequence grouting natural diffuseness adhesive bond (9) pass through controlling slurry molding.
4. impervious body leak stopping ruggedized construction as described in claim 1, it is characterised in that: the I sequence grouting natural diffuseness is cementing
Length difference is 2m or more between body (6) and I sequence grouting seepage flow diffusion adhesive bond (7).
5. impervious body leak stopping ruggedized construction as described in claim 1, it is characterised in that: the I sequence grouting natural diffuseness is cementing
The radius of body (6) is 1.2 times or more of the distance between geomembrane (1) of I sequence grout hole (5) and breakage.
6. impervious body leak stopping ruggedized construction as described in claim 1, it is characterised in that: the II sequence grouting natural diffuseness is cementing
The radius of body (9) is 1.2 times or more of the distance between geomembrane (1) of II sequence grout hole (8) and breakage.
7. impervious body leak stopping ruggedized construction as described in claim 1, it is characterised in that: the I sequence grouting natural diffuseness is cementing
Body (6) and the grouting slurry infiltration coefficient of II sequence grouting natural diffuseness adhesive bond (9) are not more than 10-6cm/s。
8. impervious body leak stopping ruggedized construction as described in claim 1, it is characterised in that: the I sequence grouting natural diffuseness is cementing
Body (6), I sequence grouting seepage flow diffusion adhesive bond (7), II sequence grouting natural diffuseness adhesive bond (9) at the time of molding, are in the milk according to I sequence
Seepage flow spread adhesive bond (7), I sequence grouting natural diffuseness adhesive bond (6), II sequence grouting natural diffuseness adhesive bond (9) sequence according to
Secondary slurry molding, wherein I sequence grouting natural diffuseness adhesive bond (6) and I sequence grouting seepage flow diffusion adhesive bond (7) are in the milk by I sequence
Grouting is completed in hole (5), and II sequence is in the milk natural diffuseness adhesive bond (9) by II sequence grout hole (8) completion grouting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822118631.XU CN209603075U (en) | 2018-12-17 | 2018-12-17 | A kind of impervious body leak stopping ruggedized construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822118631.XU CN209603075U (en) | 2018-12-17 | 2018-12-17 | A kind of impervious body leak stopping ruggedized construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209603075U true CN209603075U (en) | 2019-11-08 |
Family
ID=68396208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822118631.XU Active CN209603075U (en) | 2018-12-17 | 2018-12-17 | A kind of impervious body leak stopping ruggedized construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209603075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680653A (en) * | 2018-12-17 | 2019-04-26 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of geomembrane seepage prevention of core wall body ruggedized construction |
-
2018
- 2018-12-17 CN CN201822118631.XU patent/CN209603075U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680653A (en) * | 2018-12-17 | 2019-04-26 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of geomembrane seepage prevention of core wall body ruggedized construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105442862B (en) | A kind of distress in concrete infiltration water collision reinforcement and repair method | |
| CN105298518B (en) | A kind of profound cavern bridging of hidden-type blocks the administering method of water burst | |
| CN109356162B (en) | OPT occlusion pile side grouting water stopping method and grouting pipe device | |
| CN105201448A (en) | Method for water-stopping grouting plugging in high-pressure high-flow water gush channel | |
| CN201883435U (en) | Preburied pipe pile grouting device | |
| CN112647524A (en) | Plugging method for dewatering well in foundation pit | |
| CN209603075U (en) | A kind of impervious body leak stopping ruggedized construction | |
| CN104404919B (en) | Dam foundation corridor and bank slope bedrock connecting structure | |
| CN205894027U (en) | Structure is oozed in cutting of power station underground factory building | |
| CN107700440A (en) | A kind of diversion tunnel concrete plug and its construction method | |
| CN104314089A (en) | Method for composite geo-membrane sloping core cofferdam | |
| CN209603074U (en) | A kind of ruggedized construction of geomembrane and concrete walls connecting portion | |
| CN104196041A (en) | Construction method for concrete diaphragm wall cofferdam heightening | |
| CN105220700B (en) | Foundation pit waterproof curtain reinforcement | |
| CN103174135B (en) | Repair method of unqualified post-grouting bored concrete pile | |
| CN105155472A (en) | Dam foundation anti-seepage structure of deep overlying layer earth-rock dam and construction method of dam foundation anti-seepage structure | |
| CN207537993U (en) | A kind of diversion tunnel concrete plug | |
| CN104328781B (en) | A kind of unfavorable geologic body controlling oozes profit chemical grouting method | |
| CN204266170U (en) | A kind of dam foundation gallery syndeton | |
| CN209482263U (en) | A kind of geomembrane core-wall and rigid cut-pff wall connection structure | |
| CN204982923U (en) | Foundation ditch stagnant water curtain reinforcement structure | |
| CN109680653A (en) | A kind of geomembrane seepage prevention of core wall body ruggedized construction | |
| CN208280189U (en) | Pier nose formula anti-float anchor rod waterproofing node | |
| CN114411640B (en) | Construction method for reinforcing and repairing rock-fill core wall dam | |
| CN110359424A (en) | A kind of dam blocking method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |