CN107687155A - A kind of storehouse basin antiseepage is anti-to lift structure and method for arranging - Google Patents
A kind of storehouse basin antiseepage is anti-to lift structure and method for arranging Download PDFInfo
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- CN107687155A CN107687155A CN201710891569.5A CN201710891569A CN107687155A CN 107687155 A CN107687155 A CN 107687155A CN 201710891569 A CN201710891569 A CN 201710891569A CN 107687155 A CN107687155 A CN 107687155A
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- geomembrane
- storehouse
- cobble
- boulder
- coarse sand
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- 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
Abstract
Resist the invention discloses a kind of storehouse basin antiseepage and lift structure and method for arranging, the lower surface of the storehouse dike (1.3) of cleaning regulation warehouse (1) is until the clear baseline (2) of design in advance, lower floor's geomembrane (3) is equipped with above described clear baseline (2), boulder and cobble excavated material (5) is backfilled with upwards in the top of described lower floor's geomembrane (3), upper strata geomembrane (4) is equipped with above described boulder and cobble excavated material (5), some non-return valves (6) are installed on described upper strata geomembrane (4)；The both ends of described lower floor's geomembrane (3) are postponed upwards is linked to be the entirety of a closing with described upper strata geomembrane (4) to formation extension (3.3) at the top of storehouse dike (1.3), described extension (3.3)；It overcomes is difficult to solve the shortcomings that storehouse basin stability against floating in the prior art using single drainage measure, has the dependence reduced to non-return valve drainage effect, ensures the advantages of regulation warehouse is safely and effectively run.
Description
Technical field
The present invention relates to the Hydraulic and Hydro-Power Engineering technical field in civil engineering, is more particularly that a kind of storehouse basin is prevented
Ooze to resist and lift structure and method for arranging.
Background technology
Gansu folder rockery reservoir laying geomembrane anti-seepage, the m of antiseepage area 57.93 ten thousand2, geomembrane maximum pressure-bearing depth of water 30m,
Anti-seepage effect is good, is first using the plastic film antiseepage new technology under large area, high water head effect, new work in domestic reservoir construction
Skill.
Tai'an Pumped Storage Power Station upper storage reservoir bottom storehouse uses HDPE geomembrane horizontal leakage preventings, and there is adaptation bottom storehouse to fill out on a large scale
The characteristics of slag area deformability is strong, good seepage-proof property.The m of geomembrane anti-seepage area 160,0002, maximum functional head about 37m on film, day
Maximum functional head luffing 24m is Chinese large-sized hydroelectric project first using geomembrane as permanent works anti-seepage scheme.
Middle Line Project For Transferring Water From South To North general main canal channel uses impermeable composite geomembrane, and phreatic high canal section is flow automatically using non-return valve
Interior row, water pump pump drainage change to fill out and carry out lowering of watertable with reference to drainage.The wherein part of the water chestnut Hebei Section of general main canal Yellow River North one
A large amount of cobbles are distributed with canal base in canal section, and water penetration is stronger, are difficult to reach effect using single drainage measure.Design is used and changed
Fill out method and solve this problem with the measure that drainage is combined.By setting cohesive soil to change packing course in canal base, change canal base seepage flow
Characteristic, reduce uplift pressure under liner plate, it is ensured that liner plate stability against floating, while the closed drainage pipe that catchments is set in the case where changing packing course
Net, outer water is discharged into channel, changes seepage pressure under packing course to reduce, solve the problems, such as to change packing course stability against floating.But this oozes prosecutor
Case is difficult to carry out in the area for lacking cohesive soil.
The content of the invention
The first object of the present invention is to overcome the weak point of above-mentioned background technology and propose a kind of anti-lift of storehouse basin antiseepage
Dynamic structure.
The technical scheme is that implemented by following measure：A kind of storehouse basin antiseepage is anti-to lift structure, clear in advance
Manage regulation warehouse storehouse dike lower surface until design clear baseline, be equipped with lower floor's geomembrane above described clear baseline,
Boulder and cobble excavated material is backfilled with upwards in the top of described lower floor's geomembrane, in described boulder and cobble excavated material
Top is equipped with upper strata geomembrane, and some non-return valves are provided with described upper strata geomembrane；
The both ends of described lower floor's geomembrane postpone upwards to storehouse levee crown portion formed extension, described extension with it is described
Upper strata geomembrane be linked to be one closing entirety.
In the above-mentioned technical solutions：The coarse sand between described upper strata geomembrane lower surface and described boulder and cobble excavated material
Underlayer, bed course and loose stone on coarse sand are equipped with successively in described upper strata geomembrane upper surface.
In the above-mentioned technical solutions：Boulder and cobble excavated material is provided with the outside of the extension of described lower floor's geomembrane to fill
Area, the outer slope Shun Po in described boulder and cobble excavated material reclamation district are provided with galvanized wire gabion.
In the above-mentioned technical solutions：On the inside of the extension of described lower floor's geomembrane with described boulder and cobble excavated material it
Between, and coarse sand protective layer is vertically arranged between boulder and cobble excavated material reclamation district on the outside of described extension, it is described
Coarse sand protective layer flush laying with described boulder and cobble excavated material and boulder and cobble excavated material reclamation district.
In the above-mentioned technical solutions：Described lower floor's geomembrane is 2-4 rice apart from the upper surface depth of loose stone.
In the above-mentioned technical solutions：It is thick that between described clear baseline first is equipped with below described lower floor's geomembrane
Sand bedding course, the second coarse sand bed course is equipped between described boulder and cobble excavated material above described lower floor's geomembrane.
The second object of the present invention is to propose a kind of method for arranging：A kind of anti-arrangement side for lifting structure of storehouse basin antiseepage
Method, it comprises the following steps；
1., the storehouse dike arranged along the river to regulation warehouse first carries out clear base and excavates until the clear baseline elevation location of design；
2., described Ku Di bottoms successively 15 the first coarse sand of cm thick bed courses of horizontal laying, lower floor's geomembrane, 15 centimetres
Thick second coarse sand bed course；
3., described storehouse dike is filled using described boulder and cobble excavated material, while described lower floor's geomembrane is prolonged upwards
Stretch and form extension, lay 0.5 meter thick of coarse sand protective layer in described extension both sides, and described coarse sand protective layer with
Described boulder and cobble excavated material fills synchronous progress；
4., while construction described storehouse dike, excavate storehouse basin in the middle part of described regulation warehouse to bottom storehouse excavation line elevation
Position；
5., along step 4. in bottom storehouse excavation line on lay 15 cm thick the first coarse sand bed courses, it is then thick in described first
The second described coarse sand bed course of lower floor's geomembrane and 15 cm thicks is laid on sand bedding course successively；
6., step 5. in the second coarse sand bed course top described in boulder and cobble excavated material until upper strata geomembrane coarse sand
The bottom surface elevation of underlayer；
7., step 6. described in boulder and cobble excavated material top lay 15 cm thicks described coarse sand underlayer, then
Upper strata geomembrane is up laid in described coarse sand underlayer, if then having poured dry concrete base in described upper strata geomembrane
Seat, described upper strata geomembrane is extend into concrete pedestal, and the pre-buried PVC drain pipe in described concrete pedestal；
8., up lay on described upper strata geomembrane top bed course and 30 cm thicks on the coarse sand of 15 cm thicks successively
Loose stone, non-return valve finally is installed in step PVC drain pipe 7.；
9., described upper strata geomembrane and lower floor's geomembrane both sides are connected as a single entity and pour storage levee crown portion concrete knot
Enclosed construction is formed in structure.
In the above-mentioned technical solutions：Described boulder and cobble excavated material is provided with the outside of described lower floor's geomembrane to fill
Area, the outer slope Shun Po in described boulder and cobble excavated material reclamation district are provided with galvanized wire gabion.
In the above-mentioned technical solutions：Depth of the described lower floor's geomembrane apart from loose stone upper surface is 2-4 rice.
The invention has the advantages that：1st, cut-pff wall quantities is greatly reduced, about 37,000,000 RMB of reducing investment outlay (tool
Body refers to table 1 in specific implementation).2nd, pipe network drainage system, operational management facility are cancelled.3rd, reduce to non-return valve drainage effect
Dependence, ensure that regulation warehouse is safely and effectively run.
Brief description of the drawings
Fig. 1 is the structure arrangement schematic diagram of the present invention.
Fig. 2 is the structure arrangement schematic diagram of upper strata geomembrane and non-return valve.
In figure：Regulation warehouse 1, bottom storehouse excavation line 1.1, storehouse basin 1.2, storehouse dike 1.3, clear baseline 2, lower floor's geomembrane 3, boulder and cobble
Excavated material reclamation district 3.1, galvanized wire gabion 3.2, extension 3.3, upper strata geomembrane 4, boulder and cobble excavated material 5, coarse sand protective layer
5.1st, under the first coarse sand bed course 5.2, the second coarse sand bed course 5.3, non-return valve 6, concrete pedestal 7, PVC drain pipe 7.1, coarse sand
Bed course 9, loose stone 10 on bed course 8, coarse sand.
Embodiment
The performance that the invention will now be described in detail with reference to the accompanying drawings, but they do not form limitation of the invention, only
It is for example；Advantages of the present invention will become clearer and be readily appreciated that by explanation simultaneously.
Shown in reference picture 1-2：A kind of anti-following table for lifting structure, clearing up the storehouse dike 1.3 of regulation warehouse 1 in advance of storehouse basin antiseepage
Face is equipped with lower floor's geomembrane 3 until the clear baseline 2 of design in the top of described clear baseline 2,
Boulder and cobble excavated material 5 is backfilled with upwards in the top of described lower floor's geomembrane 3, in described boulder and cobble excavated material
5 top is equipped with upper strata geomembrane 4, and some non-return valves 6 are provided with described upper strata geomembrane 4；
The both ends of described lower floor's geomembrane 3 are postponed to the top of storehouse dike 1.3 and form extension 3.3 upwards, and described prolongs
Extending portion 3.3 is linked to be the entirety of a closing with described upper strata geomembrane 4.
The coarse sand underlayer 8 between the described lower surface of upper strata geomembrane 4 and described boulder and cobble excavated material 5, described
The upper surface of upper strata geomembrane 4 be equipped with bed course 9 and loose stone 10 on coarse sand successively.
Between the inner side of extension 3.3 of described lower floor's geomembrane 3 and described boulder and cobble excavated material 5, and outside
Be vertically arranged with coarse sand protective layer 5.1 between boulder and cobble excavated material reclamation district 3.1, described coarse sand protective layer 5.1 with
Described boulder and cobble excavated material 5 and boulder and cobble excavated material reclamation district 3.1 flushes laying.
The outside of the extension 3.3 of described lower floor's geomembrane 3 is provided with boulder and cobble excavated material reclamation district 3.1, in institute
The outer slope Shun Po for the boulder and cobble excavated material reclamation district 3.1 stated is provided with galvanized wire gabion 3.2.
Depth of the described lower floor's geomembrane 3 apart from the upper surface of loose stone 10 is 2-4 rice.
The first coarse sand bed course is equipped between described bottom storehouse excavation line 1.1 below described lower floor's geomembrane 3
5.2。
Present invention additionally comprises a kind of method for arranging：A kind of anti-method for arranging for lifting structure of storehouse basin antiseepage, it includes as follows
Step；
1., clear base is carried out to the storehouse dike 1.3 of regulation warehouse 1 first and is excavated until the elevation location of clear baseline 2 of design；
2., in the described bottom of storehouse dike 1.3 successively the first coarse sand bed course 5.2 of 15 cm thicks of horizontal laying, lower floor geotechnique
The second described coarse sand bed course 5.3 of film 3,15 cm thicks；
3., described storehouse dike 1.3 is filled using boulder and cobble excavated material 5, while by 3 liang described of lower floor's geomembrane on the side
Extend and form extension 3.3,0.5 meter thick of coarse sand protective layer 5.1 is laid in the described both sides of extension 3.3, and it is described
Coarse sand protective layer 5.1 fills synchronous progress with described boulder and cobble excavated material 5；
4., while construction described storehouse dike 1.3, storehouse basin 1.2 to the bottom storehouse for excavating the described middle part of regulation warehouse 1 is excavated
The elevation location of line 1.1；
5., along step 4. in bottom storehouse excavation line 1.1 on lay 15 the first coarse sand of cm thick bed courses 5.2, then described
The second described coarse sand bed course 5.3 of the cm thick of lower floor's geomembrane 3 and 15 is laid on first coarse sand bed course 5.2 successively；
6., step 5. in the top of the second coarse sand bed course 5.3 boulder and cobble excavated material 5 until upper strata geomembrane 4 it is thick
The bottom surface elevation of sand underlayer 8；
7., step 6. described in the thick described coarse sand underlayers 8 of the top of boulder and cobble excavated material 5 laying 15cm, then
Upper strata geomembrane 4 is up laid in described coarse sand underlayer 8, has then poured some coagulations in described upper strata geomembrane 4
Soil matrix seat 7, described upper strata geomembrane 4 is extend into concrete pedestal 7, and it is pre-buried in described concrete pedestal 7
PVC drain pipe 7.1；
8., on the described top of upper strata geomembrane 4 up lay the cm thick of bed course 9 and 30 on the coarse sand of 15 cm thicks successively
Loose stone 10, non-return valve 6 is finally installed in step PVC drain pipe 7.1 7.；
9., described upper strata geomembrane 4 and the both sides of lower floor's geomembrane 5 are connected as a single entity and pour the mixed of storage dike 1.3 top
Enclosed construction is formed in Xtah Crude Clay structure.
Table 1
Above-mentioned unspecified part is prior art.
Claims (9)
1. a kind of storehouse basin antiseepage is anti-to lift structure, it is characterised in that：The lower surface of the storehouse dike (1.3) of cleaning regulation warehouse (1) in advance
Until the clear baseline (2) of design, lower floor's geomembrane (3) is equipped with above described clear baseline (2),
Boulder and cobble excavated material (5) is backfilled with upwards in the top of described lower floor's geomembrane (3), in described boulder and cobble excavated material
(5) upper strata geomembrane (4) is equipped with above, some non-return valves (6) are installed on described upper strata geomembrane (4)；
The both ends of described lower floor's geomembrane (3) are postponed to formation extension (3.3) at the top of storehouse dike (1.3) upwards, and described prolongs
Extending portion (3.3) is linked to be the entirety of a closing with described upper strata geomembrane (4).
2. a kind of storehouse basin antiseepage according to claim 1 is anti-to lift structure, it is characterised in that：In described upper strata geomembrane
(4) coarse sand underlayer (8) between lower surface and described boulder and cobble excavated material (5), in described upper strata geomembrane (4) upper surface
Bed course on coarse sand (9) and loose stone (10) are equipped with successively.
3. a kind of storehouse basin antiseepage according to claim 1 or 2 is anti-to lift structure, it is characterised in that：In described subsoil
Boulder and cobble excavated material reclamation district (3.1) is provided with the outside of the extension (3.3) of work film (3), is filled out in described boulder and cobble excavated material
The outer slope Shun Po for building area (3.1) is provided with galvanized wire gabion (3.2).
4. a kind of storehouse basin antiseepage according to claim 3 is anti-to lift structure, it is characterised in that：In described lower floor's geomembrane
(3) on the inside of extension (3.3) between described boulder and cobble excavated material (5), and described extension (3.3) outside and ovum
Coarse sand protective layer (5.1), described coarse sand protective layer (5.1) are vertically arranged between gravel excavated material reclamation district (3.1)
Laying is flushed with described boulder and cobble excavated material (5) and boulder and cobble excavated material reclamation district (3.1).
5. a kind of storehouse basin antiseepage according to claim 4 is anti-to lift structure, it is characterised in that：Described lower floor's geomembrane
(3) the upper surface depth apart from loose stone (10) is 2-4 rice.
6. a kind of storehouse basin antiseepage according to claim 4 or 5, which resists, lifts structure, it is characterised in that：In described subsoil
The first coarse sand bed course (5.2) is equipped between described clear baseline (2) below work film (3), in described lower floor's geomembrane (3)
The second coarse sand bed course (5.3) is equipped between top and described boulder and cobble excavated material (5).
7. a kind of anti-method for lifting structure of storehouse basin antiseepage in arrangement claim 1-6 described in any right, it is characterised in that：
It comprises the following steps；
1., the storehouse dike (1.3) arranged along the river to regulation warehouse (1) first carries out clear base and excavates until the clear baseline (2) of design is high
Journey position；
2., in described storehouse dike (1.3) bottom successively 15 cm thick the first coarse sand bed courses (5.2) of horizontal laying, lower floor's geomembrane
(3), 15 cm thick the second coarse sand bed course (5.3)；
3., fill described storehouse dike (1.3) using described boulder and cobble excavated material (5), while by described lower floor's geomembrane (3)
Upwardly extend and form extension (3.3), 0.5 meter thick of coarse sand protective layer is laid in described extension (3.3) both sides
(5.1), and described coarse sand protective layer (5.1) fills synchronous progress with described boulder and cobble excavated material (5)；
4., while construction described storehouse dike (1.3), excavate storehouse basin (1.2) to the bottom storehouse in the middle part of described regulation warehouse (1) and open
Dig line (1.1) elevation location；
5., along step 4. in bottom storehouse excavation line (1.1) on lay 15 cm thick the first coarse sand bed courses (5.2), then described
The second described coarse sand bed course (5.3) of lower floor's geomembrane (3) and 15 cm thicks is laid on first coarse sand bed course (5.2) successively；
6., step 5. in second coarse sand bed course (5.3) top described in boulder and cobble excavated material (5) until upper strata geomembrane
(4) the bottom surface elevation of coarse sand underlayer (8)；
7., step 6. described in boulder and cobble excavated material (5) top lay 15 cm thicks described coarse sand underlayer (8),
Upper strata geomembrane (4) is up laid in described coarse sand underlayer (8) again, has then been poured in described upper strata geomembrane (4)
Some concrete pedestals (7), described upper strata geomembrane (4) is extend into concrete pedestal (7), and in described concrete
Pre-buried PVC drain pipe (7.1) in pedestal (7)；
8., on described upper strata geomembrane (4) top up lay bed course (9) and 30 cm thicks on the coarse sand of 15 cm thicks successively
Loose stone (10), non-return valve (6) finally is installed in step PVC drain pipe (7.1) 7.；
9., described upper strata geomembrane (4) and lower floor's geomembrane (3) both sides are connected as a single entity and poured at the top of storage dike (1.3)
Enclosed construction is formed in concrete structure.
A kind of 8. anti-method for arranging for lifting structure of storehouse basin antiseepage according to claim 7, it is characterised in that：Described
Described boulder and cobble excavated material reclamation district (3.1) is provided with the outside of lower floor's geomembrane (3), is filled out in described boulder and cobble excavated material
The outer slope Shun Po for building area (3.1) is provided with galvanized wire gabion (3.2).
A kind of 9. anti-method for arranging for lifting structure of storehouse basin antiseepage according to claim 8, it is characterised in that：Under described
Depth of the layer geomembrane (3) apart from loose stone (10) upper surface is 2-4 rice.
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| CN201710891569.5A CN107687155B (en) | 2017-09-27 | 2017-09-27 | Anti-seepage and anti-lifting structure of basin and arrangement method |
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| CN201710891569.5A CN107687155B (en) | 2017-09-27 | 2017-09-27 | Anti-seepage and anti-lifting structure of basin and arrangement method |
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| CN108547260A (en) * | 2018-06-05 | 2018-09-18 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of full library basin Anti-seeping technology structure of karst area and construction method |
| CN109555084A (en) * | 2019-01-17 | 2019-04-02 | 中国电建集团华东勘测设计研究院有限公司 | Bottom storehouse geomembrane anti-seepage bedding gas collection exhaust structure and its construction method |
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| CN207727514U (en) * | 2017-09-27 | 2018-08-14 | 长江勘测规划设计研究有限责任公司 | A kind of library basin antiseepage is anti-to lift structure |
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| CN101429757A (en) * | 2008-12-10 | 2009-05-13 | 河南国网宝泉抽水蓄能有限公司 | Construction method for asphalt concrete and clay soil anti-seepage connector and full anti-seepage dam basin |
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| CN109555084A (en) * | 2019-01-17 | 2019-04-02 | 中国电建集团华东勘测设计研究院有限公司 | Bottom storehouse geomembrane anti-seepage bedding gas collection exhaust structure and its construction method |
| CN109555084B (en) * | 2019-01-17 | 2023-09-12 | 中国电建集团华东勘测设计研究院有限公司 | Reservoir bottom geomembrane impermeable-laid gas collection and exhaust structure and construction method thereof |
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| CN107687155B (en) | 2023-04-25 |
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