CN110965533A - Interlayer dislocation zone anti-seepage treatment structure and construction method - Google Patents
Interlayer dislocation zone anti-seepage treatment structure and construction method Download PDFInfo
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- CN110965533A CN110965533A CN201911386967.7A CN201911386967A CN110965533A CN 110965533 A CN110965533 A CN 110965533A CN 201911386967 A CN201911386967 A CN 201911386967A CN 110965533 A CN110965533 A CN 110965533A
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- 239000011229 interlayer Substances 0.000 title claims abstract description 31
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 239000010410 layer Substances 0.000 claims abstract description 18
- 239000004567 concrete Substances 0.000 claims abstract description 14
- 238000009412 basement excavation Methods 0.000 claims abstract description 6
- 238000010079 rubber tapping Methods 0.000 claims description 24
- 239000011440 grout Substances 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 238000007596 consolidation process Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims 14
- 230000004888 barrier function Effects 0.000 claims 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002411 adverse Effects 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000030400 head development Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
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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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The invention discloses an interlayer dislocation zone seepage-proofing treatment structure and a construction method, wherein the structure comprises a seepage-proofing body, the seepage-proofing body comprises a seepage-stopping hole, seepage-proofing grouting curtains and lap-joint grouting curtains, the seepage-stopping hole is arranged along the interlayer dislocation zone in an excavation mode, the seepage-proofing grouting curtains and the lap-joint grouting curtains are respectively arranged above and below the interlayer dislocation zone, and two ends of the lap-joint grouting curtains are connected with the seepage-proofing grouting curtains and the seepage-stopping hole. The construction method comprises the following steps: excavating a seepage intercepting hole and pouring a first-stage lining layer in time; carrying out lap joint grouting curtain grouting; pouring secondary backfill concrete in the seepage intercepting hole for plugging; and excavating a grouting gallery, and performing anti-seepage grouting curtain grouting through the grouting gallery and connecting with the lap joint grouting curtain. The invention realizes complete sealing, safety and reliability of the anti-seepage body which completely avoids the interlaminar dislocation zone, can improve the anti-seepage capability and the seepage stability of the interlaminar dislocation zone, prevents the formation of a centralized seepage channel and reduces the adverse effect of underground water on the underground cavern.
Description
Technical Field
The invention belongs to the technical field of water conservancy and hydropower engineering, and particularly relates to an interlayer dislocation belt anti-seepage treatment structure and a construction method.
Background
Most of conventional hydropower station underground powerhouses adopt a head development mode, underground powerhouse cavern groups are located in mountains below normal water storage level of reservoir areas, and the problem of rock mass and underground water seepage cannot be ignored.
The interlaminar dislocation belt is used as a particle material mixed with soft substances of rock fragments remained after dislocation, generally has the characteristics of loose structure, soft property, easy softening when meeting water and the like, has strong ductility, can usually run through the whole seepage-proofing line, has strong water permeability, reduces the allowable permeability, is a main seepage passage of an underground cavern group, and is vital to the safety of a seepage-proofing system and the normal operation of an underground factory building.
The seepage problem of the interlaminar dislocation zone in the engineering is generally treated in the following two ways: the first method is that an anti-seepage curtain is adopted to penetrate through the interlaminar dislocation belt, and the interlaminar dislocation belt is prevented from seepage by curtain grouting; the second method is to arrange a cut-off hole to partially replace the interlaminar dislocation band and then use a short curtain to be lapped with a main curtain. Because the composition of particles of the interlaminar dislocation zone is complex and is influenced by internal fillers, the diffusion capacity of grouting slurry is limited, internal pores of the dislocation zone cannot be filled with conventional grouting materials, the first treatment mode is difficult to enable the dislocation zone part to be completely condensed into a whole, a leakage channel cannot be blocked, and the seepage-proofing effect is possibly poor; the seepage interception hole can block a communicated seepage channel at the position of the interbedded dislocation band, but a short curtain connected with the main curtain is still positioned on the interbedded dislocation band and is a weak part of the seepage-proof body, and if the grouting effect at the position is not good, a seepage channel can still be generated at the connecting position of the curtain behind the seepage interception hole.
Disclosure of Invention
The invention aims to overcome the problems in the prior art, and provides an interlayer dislocation seepage-proofing treatment structure and a corresponding construction method, wherein the interlayer dislocation seepage-proofing treatment structure is completely closed, safe and reliable, can improve the seepage-proofing capability and the seepage stability of an interlayer dislocation zone, prevent a concentrated seepage channel from being formed, and reduce the adverse effect of underground water on an underground cavern.
In order to achieve the purpose, the invention adopts the following technical scheme:
the interlayer dislocation zone seepage-proofing treatment structure comprises a seepage-proofing body, wherein the seepage-proofing body comprises seepage-stopping holes, seepage-proofing grouting curtains and lapping grouting curtains, the seepage-stopping holes are arranged along the excavation of the interlayer dislocation zone, the seepage-proofing grouting curtains and the lapping grouting curtains are respectively arranged above and below the interlayer dislocation zone, and two ends of the lapping grouting curtains are connected with the seepage-proofing grouting curtains and the seepage-stopping holes.
Preferably, the intercepting hole is disposed at an upstream side of the impervious grouting curtain.
Preferably, the anti-seepage grouting curtain comprises an upper anti-seepage grouting curtain and a lower anti-seepage grouting curtain, the upper anti-seepage grouting curtain is positioned above the interlaminar dislocation band, the lower anti-seepage grouting curtain is positioned below the interlaminar dislocation band, and the lower end of the upper anti-seepage grouting curtain and the upper end of the lower anti-seepage grouting curtain are respectively lapped and lapped with the grouting curtains.
Preferably, the minimum distance between the seepage-proofing grouting curtain and the seepage-proofing hole is more than 5 m.
Preferably, the seepage intercepting hole comprises a first-stage lining layer and second-stage backfilled concrete, the first-stage lining layer covers the inner wall of the seepage intercepting hole, and the second-stage backfilled concrete fills the inner space of the seepage intercepting hole.
Preferably, the lap joint grouting curtain comprises a first lap joint grouting curtain hole, a second lap joint grouting curtain hole, a third lap joint grouting curtain hole and a fourth lap joint grouting curtain hole, the first lap joint grouting curtain hole and the second lap joint grouting curtain hole are positioned above the interlaminar dislocation band, and the third lap joint grouting curtain hole and the fourth lap joint grouting curtain hole are positioned below the interlaminar dislocation band; one end of each of the first, second, third and fourth lap joint grouting curtain holes is provided with a hole on a first lining layer at one side of the seepage-cut hole close to the seepage-proof grouting curtain, and the other end of each of the first, second, third and fourth lap joint grouting curtain holes is lapped with the seepage-proof grouting curtain.
Preferably, the tapping position of the first lap grouting curtain hole is located at the arch line of the cut-off hole, the tapping position of the second lap grouting curtain hole is located a distance D2 below the tapping position of the first lap grouting curtain hole, the tapping of the fourth lap grouting curtain hole is located at the bottom corner of the sidewall of the cut-off hole, the tapping position of the third lap grouting curtain hole is located a distance D2 above the tapping position of the fourth lap grouting curtain hole, the tapping position of the second lap grouting curtain hole is located a distance D1 above the interbedded dislocation band, the tapping positions of the third lap grouting curtain holes are respectively located a distance D1 below the interbedded dislocation band 1, the distance D2 is 1m, and the distance D1 is greater than or equal to 1 m.
Preferably, the distance from the overlapped position of the second overlapped grouting curtain hole and the impervious grouting curtain to the interlaminar dislocation zone along the extending direction of the impervious grouting curtain is D4; the distance from the lap joint position of the first lap joint grouting curtain hole and the seepage-proofing grouting curtain to the interlayer dislocation belt along the extension direction of the seepage-proofing grouting curtain is D4+ D3; the distance from the lap joint position of the third lap joint grouting curtain hole and the impervious grouting curtain to the interlaminar dislocation belt along the extension direction of the impervious grouting curtain is D4; the distance from the lap joint position of the fourth lap joint grouting curtain hole and the impervious grouting curtain to the interlaminar dislocation belt along the extension direction of the impervious grouting curtain is D4+ D3; the D3 is 2m, and the D4 is greater than or equal to 2 m.
The invention also provides a construction method of the interlayer dislocation zone anti-seepage treatment structure, which comprises the following steps:
and 4, respectively excavating a grouting gallery above and below the interlaminar dislocation zone, and performing anti-seepage grouting curtain grouting through the grouting gallery and connecting with the lap grouting curtain to form a complete and closed anti-seepage body completely avoiding the interlaminar dislocation zone.
The invention has the beneficial effects that: the seepage-stopping hole and the lapping curtain are arranged on the upstream side of the conventional seepage-proofing grouting curtain along the interbedded dislocation band, the grouting curtain completely avoids the interbedded dislocation band, the distance between the grouting curtain and the interbedded dislocation band is not less than 1m, the grouting curtain, the interbedded dislocation band and the lapping curtain are combined to form a complete closed, safe and reliable seepage-proofing body which completely avoids the interbedded dislocation band, the seepage-proofing capability and the seepage stability of the interbedded dislocation band can be improved, a centralized seepage channel is prevented from being formed, and the adverse effect of underground water on an.
Drawings
Fig. 1 is a schematic cross-sectional view of an interlayer dislocation belt anti-seepage processing structure in a use state.
FIG. 2 is a schematic view of a cut-off hole of an anti-seepage processing structure of an interlayer dislocation zone.
In the figure:
1. an interlaminar dislocation zone; 2. grouting a gallery; 3. intercepting a seepage hole; 301. a first lining layer; 302. backfilling concrete in the second stage; 4. an impermeable grouting curtain; 401. an upper impervious grouting curtain; 402. a lower impermeable grouting curtain; 5. lapping a grouting curtain; 501. a first lap grouting curtain hole; 502. a second lap grouting curtain hole; 503. a third lap joint grouting curtain hole; 504. and fourth lapping grouting curtain holes.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1 and 2, the anti-seepage treatment structure for the interbedded split zone comprises an anti-seepage body, wherein the anti-seepage body comprises an interception hole 3, an anti-seepage grouting curtain 4 and a lap grouting curtain 5, the interception hole 3 is arranged along the excavation of the interbedded split zone 1, the anti-seepage grouting curtain 4 and the lap grouting curtain 5 are respectively arranged above and below the interbedded split zone 1, and two ends of the lap grouting curtain 5 are connected with the anti-seepage grouting curtain 4 and the interception hole 3. The intercepting hole 3 is arranged at the upstream side of the impervious grouting curtain 4.
The seepage-proofing grouting curtain 4 comprises an upper seepage-proofing grouting curtain 401 and a lower seepage-proofing grouting curtain 402, wherein the upper seepage-proofing grouting curtain 401 is positioned above the interlaminar dislocation band 1, the lower seepage-proofing grouting curtain 402 is positioned below the interlaminar dislocation band 1, and the lower end of the upper seepage-proofing grouting curtain 401 and the upper end of the lower seepage-proofing grouting curtain 402 are respectively lapped and lapped with a grouting curtain 5.
The minimum distance between the seepage-proofing grouting curtain 4 and the seepage-proofing hole 3 is more than 5 m.
Cut and ooze hole 3 and include first stage lining layer 301 and second stage backfill concrete 302, first stage lining layer 301 covers and cuts and ooze 3 inner walls in hole, second stage backfill concrete 302 fills and cuts and ooze 3 inner spaces in hole.
The lap joint grouting curtain 5 comprises a first lap joint grouting curtain hole 501, a second lap joint grouting curtain hole 502, a third lap joint grouting curtain hole 503 and a fourth lap joint grouting curtain hole 504, the first lap joint grouting curtain hole 501 and the second lap joint grouting curtain hole 502 are positioned above the interlaminar dislocation band 1, and the third lap joint grouting curtain hole 503 and the fourth lap joint grouting curtain hole 504 are positioned below the interlaminar dislocation band 1; one end of each of the first, second, third and fourth lap grout curtain holes 501, 502, 503 and 504 is perforated on the first lining layer 301 of the seepage-cut hole 3 near one side of the impervious grout curtain 4, and the other end is lapped with the impervious grout curtain 4.
The tapping position of the first lap-joint grouting curtain hole 501 is located at the arch line of the cut-off hole 3, the tapping position of the second lap-joint grouting curtain hole 502 is located at a distance D2 below the tapping position of the first lap-joint grouting curtain hole 501, the tapping of the fourth lap-joint grouting curtain hole 504 is located at the bottom corner of the sidewall of the cut-off hole 3, the tapping position of the third lap-joint grouting curtain hole 503 is located at a distance D2 above the tapping position of the fourth lap-joint grouting curtain hole 504, the tapping position of the second lap-joint grouting curtain hole 502 is located at a distance D1 above the interbedding slip band 1, the tapping position of the third lap-joint grouting curtain hole 503 is located at a distance D1 below the interbedding slip band 1, the distance D2 is 1m, and the distance D1 is greater than or equal to 1 m.
The distance from the lap joint position of the second lap joint grouting curtain hole 502 and the impervious grouting curtain 4 to the interlaminar dislocation belt 1 along the extension direction of the impervious grouting curtain 4 is D4; the distance from the lapping position of the first lapping grouting curtain hole 501 and the impervious grouting curtain 4 to the interlaminar dislocation belt 1 along the extending direction of the impervious grouting curtain 4 is D4+ D3; the distance from the lap joint position of the third lap joint grouting curtain hole 503 and the impervious grouting curtain 4 to the interlaminar dislocation zone 1 along the extension direction of the impervious grouting curtain 4 is D4; the distance from the lapping position of the fourth lapping grouting curtain hole 504 and the impervious grouting curtain 4 to the interlaminar dislocation band 1 along the extending direction of the impervious grouting curtain 4 is D4+ D3; the D3 is 2m, and the D4 is greater than or equal to 2 m.
The first-stage lining layer 301 of the narrow and high seepage-stopping hole 3 is lined by reinforced concrete, and the thickness is not less than 50 cm. The hole periphery consolidation grouting and lap joint grouting curtain 5 is blocked in concrete, and the second-stage backfilled concrete 302 is blocked by micro-expansion concrete. The pitch and depth of holes of the anti-seepage grouting curtain 4 are constructed according to the conventional engineering technology, but the grouting pressure is increased and the grouting time is prolonged in the hole section in the influence range of the lapping grouting curtain 5.
The invention also provides a construction method of the interlayer dislocation zone anti-seepage treatment structure, which comprises the following steps:
and 4, respectively excavating a grouting gallery 2 above and below the interlaminar dislocation belt 1, grouting an anti-seepage grouting curtain 4 through the grouting gallery 2 and connecting the anti-seepage grouting curtain 4 with a lap grouting curtain 5 to form a complete and closed anti-seepage body 6 which completely avoids the interlaminar dislocation belt 1.
According to the invention, the seepage intercepting hole and the lapping curtain are arranged along the interlayer dislocation zone at the upstream side of the conventional seepage-proofing grouting curtain, the grouting curtain completely avoids the interlayer dislocation zone, the distance between the grouting curtain and the interlayer dislocation zone is not less than 1m, and the grouting curtain, the interlayer dislocation zone and the lapping curtain are combined to form a complete closed, safe and reliable seepage-proofing body which completely avoids the interlayer dislocation zone, so that the seepage-proofing capability and the seepage stability of the interlayer dislocation zone can be improved, a centralized seepage channel is prevented from being formed, and the adverse effect of underground water on an underground cavern is reduced.
Claims (9)
1. The utility model provides an interlaminar dislocation area prevention of seepage handles structure, characterized by, includes the prevention of seepage body, the prevention of seepage body is including cutting seepage hole (3), prevention of seepage grout curtain (4) and overlap joint grout curtain (5), cut seepage hole (3) and arrange along interlaminar dislocation area (1) excavation, arrange prevention of seepage grout curtain (4) and overlap joint grout curtain (5) respectively in interlaminar dislocation area (1) top and below, and prevention of seepage grout curtain (4) and cut seepage hole (3) are connected at overlap joint grout curtain (5) both ends.
2. An interlaminar dislocation band barrier treatment structure as claimed in claim 1, characterized in that said intercepting cavities (3) are arranged on the upstream side of the curtain of barrier grouting (4).
3. An interlaminar dislocation band seepage prevention treatment structure as claimed in claim 1, wherein said seepage prevention grouting curtain (4) comprises an upper seepage prevention grouting curtain (401) and a lower seepage prevention grouting curtain (402), said upper seepage prevention grouting curtain (401) is located above the interlaminar dislocation band (1), said lower seepage prevention grouting curtain (402) is located below the interlaminar dislocation band (1), and the lower end of the upper seepage prevention grouting curtain (401) and the upper end of the lower seepage prevention grouting curtain (402) are respectively lap-lapped and lapped with the grouting curtain (5).
4. An interlaminar dislocation band barrier treatment structure as claimed in claim 1, characterized in that the minimum distance between said barrier grouting curtain (4) and the intercepting hole (3) is greater than 5 m.
5. An interlaminar dislocation belt seepage-proofing treatment structure according to claim 1, characterized in that the seepage-stopping hole (3) comprises a first-stage lining layer (301) and second-stage backfilling concrete (302), wherein the first-stage lining layer (301) covers the inner wall of the seepage-stopping hole (3), and the second-stage backfilling concrete (302) fills the inner space of the seepage-stopping hole (3).
6. The interlaminar dislocation band seepage-proofing treatment structure according to claim 1, wherein the lap-joint grouting curtain (5) comprises a first lap-joint grouting curtain hole (501), a second lap-joint grouting curtain hole (502), a third lap-joint grouting curtain hole (503) and a fourth lap-joint grouting curtain hole (504), the first lap-joint grouting curtain hole (501) and the second lap-joint grouting curtain hole (502) are positioned above the interlaminar dislocation band (1), and the third lap-joint grouting curtain hole (503) and the fourth lap-joint grouting curtain hole (504) are positioned below the interlaminar dislocation band (1); one end of each of the first lap joint grouting curtain hole (501), the second lap joint grouting curtain hole (502), the third lap joint grouting curtain hole (503) and the fourth lap joint grouting curtain hole (504) is provided with a hole on a first-stage lining layer (301) at one side of the seepage-stopping hole (3) close to the seepage-proof grouting curtain (4), and the other end of each of the first lap joint grouting curtain holes, the second lap joint grouting curtain hole (502), the third lap joint grouting curtain hole (503) and the fourth lap joint grouting curtain hole (504) is provided with.
7. An interlaminar dislocation tape anti-seepage processing structure as claimed in claim 1, wherein the tapping position of the first lap-grouting curtain hole (501) is located at the arch line of the intercepting hole (3), the tapping position of the second lap-grouting curtain hole (502) is located at a distance D2 below the tapping position of the first lap-grouting curtain hole (501), the tapping of the fourth lap-grouting curtain hole (504) is located at the bottom corner of the sidewall of the intercepting hole (3), the tapping position of the third lap-grouting curtain hole (503) is located at a distance D2 above the tapping position of the fourth lap-grouting curtain hole (504), the tapping position of the second lap-grouting curtain hole (502) is located at a distance D1 above the interlaminar dislocation tape (1), the tapping position of the third lap-grouting curtain hole (503) is respectively located at a distance D1 below the interlaminar dislocation tape (1), and the distance D2 is 1m, the distance D1 is greater than or equal to 1 m.
8. An interlaminar dislocation tape impermeable handling structure as claimed in claim 1, characterized in that the lapping position of said second lapping grouting curtain hole (502) and impermeable grouting curtain (4) is D4 from the extending direction of the impermeable grouting curtain (4) to the interlaminar dislocation tape (1); the distance from the lap joint position of the first lap joint grouting curtain hole (501) and the seepage-proof grouting curtain (4) to the interlayer dislocation belt (1) along the extension direction of the seepage-proof grouting curtain (4) is D4+ D3; the distance from the lap joint position of the third lap joint grouting curtain hole (503) and the impervious grouting curtain (4) to the interlaminar dislocation belt (1) along the extension direction of the impervious grouting curtain (4) is D4; the distance from the lap joint position of the fourth lap joint grouting curtain hole (504) and the seepage-proofing grouting curtain (4) to the interlaminar dislocation belt (1) along the extension direction of the seepage-proofing grouting curtain (4) is D4+ D3; the D3 is 2m, and the D4 is greater than or equal to 2 m.
9. A construction method of an interlayer dislocation band anti-seepage treatment structure is characterized by comprising the following steps:
step 1, excavating a seepage interception hole (3) along an interlayer dislocation zone (1) at the upstream side of a preset seepage-proofing grouting curtain (4) of the interlayer dislocation zone (1), pouring a first-stage lining layer (301) in time after the excavation and support are finished, and pouring the first-stage lining layer (301) to finish circumferential consolidation grouting construction of the seepage interception hole (3);
step 2, lapping grouting curtain (5) grouting is carried out from the seepage intercepting hole (3) to the direction of the preset seepage-proofing grouting curtain (4);
step 3, after the lapping grouting curtain (5) is completely grouted and checked to be qualified, constructing second-stage backfill concrete (302) in the seepage intercepting hole (3) for plugging;
and 4, respectively excavating a grouting gallery (2) above and below the interlaminar dislocation band (1), grouting an anti-seepage grouting curtain (4) through the grouting gallery (2) and connecting the anti-seepage grouting curtain (4) with the lapping grouting curtain (5) to form a complete and closed anti-seepage body (6) which completely avoids the interlaminar dislocation band (1).
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| CN201911386967.7A CN110965533A (en) | 2019-12-29 | 2019-12-29 | Interlayer dislocation zone anti-seepage treatment structure and construction method |
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| CN201911386967.7A CN110965533A (en) | 2019-12-29 | 2019-12-29 | Interlayer dislocation zone anti-seepage treatment structure and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934480A (en) * | 2022-07-04 | 2022-08-23 | 中国电建集团昆明勘测设计研究院有限公司 | Joint type between rigid and flexible seepage-proofing bodies in weir plug body seepage-proofing reinforcement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205314056U (en) * | 2015-12-31 | 2016-06-15 | 长江勘测规划设计研究有限责任公司 | It seals prevention of seepage reinforced structure to grout masonry dam or concrete dam |
| US20160169435A1 (en) * | 2015-02-09 | 2016-06-16 | SAFEKEY Engineering Technology(Zhengzhou), Ltd. | Polymer composite grouting method for blocking leaking and sand inrush of underground pipelines |
| CN205894027U (en) * | 2016-05-31 | 2017-01-18 | 中国电建集团华东勘测设计研究院有限公司 | Structure is oozed in cutting of power station underground factory building |
| 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 |
| CN208965598U (en) * | 2018-08-17 | 2019-06-11 | 中国电建集团华东勘测设计研究院有限公司 | The Anti-seeping technology structure of grout curtain and underground chamber intersection area |
| CN212427014U (en) * | 2019-12-29 | 2021-01-29 | 中国电建集团华东勘测设计研究院有限公司 | Interlaminar dislocation area prevention of seepage processing structure |
-
2019
- 2019-12-29 CN CN201911386967.7A patent/CN110965533A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160169435A1 (en) * | 2015-02-09 | 2016-06-16 | SAFEKEY Engineering Technology(Zhengzhou), Ltd. | Polymer composite grouting method for blocking leaking and sand inrush of underground pipelines |
| CN205314056U (en) * | 2015-12-31 | 2016-06-15 | 长江勘测规划设计研究有限责任公司 | It seals prevention of seepage reinforced structure to grout masonry dam or concrete dam |
| CN205894027U (en) * | 2016-05-31 | 2017-01-18 | 中国电建集团华东勘测设计研究院有限公司 | Structure is oozed in cutting of power station underground factory building |
| 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 |
| CN208965598U (en) * | 2018-08-17 | 2019-06-11 | 中国电建集团华东勘测设计研究院有限公司 | The Anti-seeping technology structure of grout curtain and underground chamber intersection area |
| CN212427014U (en) * | 2019-12-29 | 2021-01-29 | 中国电建集团华东勘测设计研究院有限公司 | Interlaminar dislocation area prevention of seepage processing structure |
Non-Patent Citations (1)
| Title |
|---|
| 姬建闯;: "瓜峪水库搭接帷幕灌浆设计", 吉林水利, no. 10, pages 14 - 16 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934480A (en) * | 2022-07-04 | 2022-08-23 | 中国电建集团昆明勘测设计研究院有限公司 | Joint type between rigid and flexible seepage-proofing bodies in weir plug body seepage-proofing reinforcement |
| CN114934480B (en) * | 2022-07-04 | 2024-03-01 | 中国电建集团昆明勘测设计研究院有限公司 | Joint pattern between rigid and flexible impermeable bodies in barrier body impermeable reinforcement |
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