CN205894027U - Structure is oozed in cutting of power station underground factory building - Google Patents
Structure is oozed in cutting of power station underground factory building Download PDFInfo
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- CN205894027U CN205894027U CN201620523460.7U CN201620523460U CN205894027U CN 205894027 U CN205894027 U CN 205894027U CN 201620523460 U CN201620523460 U CN 201620523460U CN 205894027 U CN205894027 U CN 205894027U
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Abstract
The utility model provides a structure is oozed in cutting of power station underground factory building, including arranging the multilayer irrigation gallery at power station underground factory building upstream side, cut and to ooze the structure and still include and ooze the hole along cutting of disturbed belt excavation between weak intercalated layer or layer, irrigation gallery below set up to cut the curtain grouting hole of oozing hole direction slope, curtain grouting is downthehole to form main impervious curtain through grout, cut ooze the hole this one side of the main impervious curtain of orientation be equipped with with the lapped linking curtain of main impervious curtain. The utility model discloses a setting of factory building upstream side cuts and to ooze the hole, link up the curtain and form whole prevention of seepage system with main impervious curtain underground, improves the whole prevention of seepage effect of factory building upstream side, through setting up the lining cutting and backfill microdilatancy plain concrete in oozing the hole cutting, improves impervious, the shear behavior of disturbed belt position between weak intermediate layer or layer simultaneously, improves the integrality of rock mass, guarantees the operation of factory building safety and stability.
Description
Technical field
This utility model is related to the underground space engineering such as water power, water conservancy, is particularly well-suited to the needs of weak intercalated layer containing highly permeable
Carry out the underground power house of special Anti-seeping technology.
Background technology
, as clean energy resource, cost of electricity-generating is low for water power, promotes hydroelectric development to be the important composition optimizing China's energy resource structure
Part.Western Hydroelectricity Developing is limited by conditions such as landform, landforms, as the installation hydraulic turbine, electromotor and various auxiliary equipment
Building, adopts underground structure pattern powerhouse of hydropower station more.Below underground power house waterline located underground, subsoil water seepage is not
Can avoid, and underground power house Surrounding Rock Strength and stability are closely related with country rock moisture content, the electromechanics such as the hydraulic turbine, electromotor simultaneously
Equipment requires higher, in order to improve underground power house in the barrier performance after reservoir filling it is ensured that in underground power house to running environment
Electromechanical equipment safety and steady run, grouting, the collector drain of which floor differing heights are generally set in underground power house surrounding, utilize
Irrigation gallery grouting forms continuous seepage proof curtain around underground power house；If it is stronger to there is water penetration in the range of underground power house
Weak intercalated layer or inter-laminar dislocation band, due to grout curtain poor, antiseepage in weak intercalated layer or inter-laminar dislocation band position grouting effect
Curtain easily forms local weak position in such position, once reservoir filling, seepage proof curtain easy quilt under high water head effect
Puncture and formed concentration penetrating passage, greatly reduce the anti-seepage effect of seepage proof curtain, also affect the normal of underground power house simultaneously
Run.
Prior art is oozed process and is exactly typically to containing cutting of the stronger weak intercalated layer of water penetration or inter-laminar dislocation band in batholith
By improving seepage preventing curtain grouting pressure, the change ratio of mud reaches anti-seepage effect as far as possible, but when weak intercalated layer or interlayer are wrong
Dynamic band band is roomy, expanded range is long, particularly when weak intercalated layer or the inter-laminar dislocation band gradient are relatively steep, permeability is relatively strong, contain argillization
When implant, processed using said method, based on anisotropy feature in terms of infiltration for the crack it is impossible to completely cut off
Leakage passage, grouting effect hardly results in guarantee, and it is larger to carry out Anti-seeping technology difficulty after later stage water-retention under the conditions of high water head again,
Construction investment increase is also compared many.
Content of the invention
Technical problem to be solved in the utility model is to provide a kind of cutting of underground workshop to ooze structure, by cutting
Ooze hole, main seepage proof curtain and linking curtain form overall seepage prevention system, can reduce each working procedure interfere it is ensured that cut ooze
Effect, improves underground power house barrier performance.
This utility model solves cutting of the technical scheme is that underground workshop of technical problem and oozes structure, bag
Include the multilamellar irrigation gallery being arranged in underground workshop upstream side, described section oozes structure and also include along weak intercalated layer or interlayer
Hole is oozed in cutting that disturbed belt excavates, and opens up and ooze, to described section, the grout curtain hole that hole direction tilts below described irrigation gallery, described
Grout curtain in the hole is passed through grouting and is formed main seepage proof curtain, and described section oozes hole and be provided with and institute towards this side of main seepage proof curtain
State the linking curtain of main seepage proof curtain overlap joint.
While using technique scheme, this utility model can also adopt or combination is using further below
Technical scheme:
Described irrigation gallery is arranged in base and covers line and Factory Building grout curtain according to construction passage arrangement and curtain drilling depth
On different elevations between bottom line.
Described section oozes hole along penetrating passage arrangement, and arrangement scope is matched with the main seepage proof curtain of irrigation gallery.
Described linking being connected it is ensured that curtain forms entirety with described main seepage proof curtain of curtain.
Described section oozes Dong Dongzhou and is provided with lining cutting, and its internal backfill expands plain concrete.
The beneficial effects of the utility model are: this utility model passes through the setting section in underground power house upstream side and oozes hole, linking
Curtain and main seepage proof curtain form overall seepage prevention system, improve the overall anti-seepage effect of Factory Building upstream side, pass through to ooze cutting simultaneously
Lining cutting is set in hole and backfills microdilatancy plain concrete, improve impervious, the shear behavior of weak interlayer or inter-laminar dislocation band position, carry
The integrity of high rock mass is it is ensured that Factory Building safe and stable operation.
Brief description
Fig. 1 is the spread figure along Factory Building irrigation gallery of the present utility model.
Fig. 2 is of the present utility model section oozes the profile in hole.
Fig. 3 is of the present utility model section oozes the typical section figure in hole.
Specific embodiment
Referring to the drawings.
Of the present utility model section oozes the multilamellar irrigation gallery 2-1 that structure includes being arranged in underground workshop upstream side,
Described irrigation gallery 2-1 is arranged in base according to construction passage arrangement and curtain drilling depth and carries out line 1 and Factory Building grout curtain bottom line
On different elevations between 11.
Described section oozes structure and also includes oozing hole 2-2 along weak intercalated layer or cutting of inter-laminar dislocation band excavation, cuts and oozes hole 2-2 for city
Door hole type, opens up the grout curtain hole tilting to the described section of direction oozing hole 2-2, described curtain below described irrigation gallery 2-1
Grouting in the hole pass through grouting formed main seepage proof curtain 8, described section ooze hole 2-2 towards this side of main seepage proof curtain 8 be provided with
The linking curtain 5 of described main seepage proof curtain 1 overlap joint.
Described section oozes hole 2-2 and arises from factory dam grout curtain demarcation line 9, and terminate in the minimum irrigation gallery 2-1 of elevation, accompanying drawing
Label 10 is irrigation gallery terminated line, and in Fig. 1, drawing reference numeral 4 is Factory Building contour line, and the typical section figure of Fig. 3 is with Factory Building profile
Line 4 is border.
The length of described linking curtain 5 is less than described main seepage proof curtain 8, and linking curtain 5 is formed with main seepage proof curtain 8 overlap joint
Overall leakage preventing structure.
Described section oozes and hole 2-2 hole week is provided with lining cutting 6, its internal backfill microdilatancy plain concrete 7.
Concrete application situation of the present utility model is: there is the steeper weak intercalated layer of the gradient or layer in the range of underground power house
Between disturbed belt 3 when, according to construction passage arrangement and curtain drilling depth arranged which floor different elevation in underground power house upstream side
Irrigation gallery 2-1, excavates gateway opening type along weak intercalated layer or inter-laminar dislocation band 3 at irrigation gallery 2-1 upstream side 10 ~ 20m
Cut ooze hole 2-2 it is ensured that weak intercalated layer or inter-laminar dislocation band 3 be exposed in cut ooze in the middle part of the cavern of hole 2-2, subsequently to cut ooze hole 2-2
Carry out lining cutting, and carry out consolidation grouting (rockfill grouting) in the range of the Zhou Yiding of hole it is ensured that cutting the density oozing hole region country rock,
Ooze in the 2-2 of hole along each setting of weak intercalated layer or the more complete rock mass of the upper and lower disk of inter-laminar dislocation band 3 two rows' linking curtains cutting afterwards
5, finally utilize irrigation gallery 2-1 that main seepage proof curtain 8 is set, main seepage proof curtain 8 is according to the difference in height between each layer irrigation gallery slightly
(cut and ooze this side of hole 2-2) to the upstream side and tilt 6 ~ 10 degree, main seepage proof curtain 8 is formed with cutting curtain 5 overlap joint that is connected oozing hole 2-2
Integrated seepage-proofing structure.Grouting works is checked and accepted and is oozed the cavity in the 2-2 of hole and carry out back to cutting using microdilatancy plain concrete 7 after terminating
Fill out.
The thickness cutting the lining cutting 6 oozing hole 2-2 is 0.5 ~ 1m, using c30 concrete, internal backfill microdilatancy plain concrete 7.
Cut and ooze hole 2-2 and should ensure that weak intercalated layer or inter-laminar dislocation band 3 exposure in the middle part of cavern, away from cutting the base plate oozing hole 2-2
Not less than 1m, it is not less than 1.5m away from cutting the hole crown oozing hole 2-2.
Cut ooze hole 2-2 along weak intercalated layer or inter-laminar dislocation band 3 upper lower burrs setting overlap joint curtain 5 should pass through main seepage proof curtain
8 at least 2 ~ 3m are to ensure to overlap effect.
In the present embodiment, five layers of irrigation gallery 2-1 are arranged and in weak intercalated layer or intercalated dislocation in underground power house scope
On band 3, arrangement two is cut and is oozed hole 2-2, for convenience of later stage lining cutting and grouting construction, cuts and oozes hole width 4m, high 4.5m, will cut and ooze in hole
Weak intercalated layer or inter-laminar dislocation band excavate after-pouring lining cutting.
As shown in Fig. 2 dig out to cut along weak intercalated layer or inter-laminar dislocation band 3 oozing lining cutting 6 of first constructing after the 2-2 of hole, lining cutting 6 reaches
The construction linking curtain 5 to after design strength, backfills slightly expanded concrete 7 after the completion for the treatment of main seepage proof curtain 8.
As shown in figure 3, using the main grout curtain hole of each layer irrigation gallery 2-1 construction, by shape of being in the milk in grout curtain hole
Become main seepage proof curtain 8, linking curtain 5, it is ensured that exceeding main seepage proof curtain 2 ~ 3m, subsequently oozes backfill microdilatancy element in the 2-2 of hole cutting
Concrete seven, thus form the short curtain of seepage proof curtain+linking+section ooze in high water-permeability weak intercalated layer or inter-laminar dislocation band 3 upper lower burrs
The overall seepage prevention system of the short curtain+seepage proof curtain of hole+overlap joint.
Claims (5)
1. underground workshop cut ooze structure it is characterised in that: include be arranged in the many of underground workshop upstream side
Layer irrigation gallery, described section oozes structure and also includes oozing hole along weak intercalated layer or cutting of inter-laminar dislocation band excavation, described irrigation gallery
Lower section opens up oozes, to described section, the grout curtain hole that hole direction tilts, and described grout curtain in the hole is passed through grouting and formed main antiseepage curtain
Curtain, described section oozes hole and is connected curtain with described main seepage proof curtain overlaps being provided with towards this side of main seepage proof curtain.
2. underground workshop as claimed in claim 1 cut ooze structure it is characterised in that: described irrigation gallery is according to applying
Work passage arrangement and curtain drilling depth are arranged on the different elevations that base covers between line and Factory Building grout curtain bottom line.
3. underground workshop as claimed in claim 1 cut ooze structure it is characterised in that: described section to ooze hole logical along infiltration
Road is arranged, arrangement scope is matched with the main seepage proof curtain of irrigation gallery.
4. underground workshop as claimed in claim 1 cut ooze structure it is characterised in that: described linking curtain with described
Main seepage proof curtain is connected it is ensured that curtain forms entirety.
5. underground workshop as claimed in claim 1 cut ooze structure it is characterised in that: described section oozes and hole week is provided with lining
Build, its internal backfill microdilatancy plain concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523460.7U CN205894027U (en) | 2016-05-31 | 2016-05-31 | Structure is oozed in cutting of power station underground factory building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523460.7U CN205894027U (en) | 2016-05-31 | 2016-05-31 | Structure is oozed in cutting of power station underground factory building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205894027U true CN205894027U (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620523460.7U Active CN205894027U (en) | 2016-05-31 | 2016-05-31 | Structure is oozed in cutting of power station underground factory building |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165658A (en) * | 2017-07-13 | 2017-09-15 | 中国电建集团华东勘测设计研究院有限公司 | Pass through the inter-laminar dislocation band impermeable management structure and construction method of underground chamber |
| CN109914459A (en) * | 2019-04-17 | 2019-06-21 | 黄河勘测规划设计研究院有限公司 | A kind of ultra-deep dam foundation grout curtain structure |
| CN110965533A (en) * | 2019-12-29 | 2020-04-07 | 中国电建集团华东勘测设计研究院有限公司 | Interlayer dislocation zone anti-seepage treatment structure and construction method |
| CN112982371A (en) * | 2021-02-08 | 2021-06-18 | 中国电建集团北京勘测设计研究院有限公司 | Seepage-proofing method for large underground cavern by adopting advanced grouting sealing |
-
2016
- 2016-05-31 CN CN201620523460.7U patent/CN205894027U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165658A (en) * | 2017-07-13 | 2017-09-15 | 中国电建集团华东勘测设计研究院有限公司 | Pass through the inter-laminar dislocation band impermeable management structure and construction method of underground chamber |
| CN109914459A (en) * | 2019-04-17 | 2019-06-21 | 黄河勘测规划设计研究院有限公司 | A kind of ultra-deep dam foundation grout curtain structure |
| CN109914459B (en) * | 2019-04-17 | 2024-03-12 | 黄河勘测规划设计研究院有限公司 | Ultra-deep dam foundation grouting curtain structure |
| CN110965533A (en) * | 2019-12-29 | 2020-04-07 | 中国电建集团华东勘测设计研究院有限公司 | Interlayer dislocation zone anti-seepage treatment structure and construction method |
| CN112982371A (en) * | 2021-02-08 | 2021-06-18 | 中国电建集团北京勘测设计研究院有限公司 | Seepage-proofing method for large underground cavern by adopting advanced grouting sealing |
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