CN108547260A - A kind of full library basin Anti-seeping technology structure of karst area and construction method - Google Patents
A kind of full library basin Anti-seeping technology structure of karst area and construction method Download PDFInfo
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- CN108547260A CN108547260A CN201810568743.7A CN201810568743A CN108547260A CN 108547260 A CN108547260 A CN 108547260A CN 201810568743 A CN201810568743 A CN 201810568743A CN 108547260 A CN108547260 A CN 108547260A
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- 238000005516 engineering process Methods 0.000 title claims abstract description 24
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 239000004567 concrete Substances 0.000 claims abstract description 85
- 230000004888 barrier function Effects 0.000 claims abstract description 42
- 239000011241 protective layer Substances 0.000 claims abstract description 20
- 239000011378 shotcrete Substances 0.000 claims abstract description 13
- 239000004927 clay Substances 0.000 claims description 34
- 238000004873 anchoring Methods 0.000 claims description 22
- 230000008595 infiltration Effects 0.000 claims description 22
- 238000001764 infiltration Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 5
- 230000001788 irregular Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000011282 treatment Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000004746 geotextile Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 108091006146 Channels Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Revetment (AREA)
Abstract
The present invention provides a kind of construction methods of the full library basin Anti-seeping technology of karst area, according to the different and different leaky properties of reservoir area landform, the full library basin blocked using bottom storehouse impervious barrier bedding, library bank gunite concrete barrier sheet bedding, concrete is completely spread anti-seepage method and carries out antiseepage.The present invention takes full advantage of the protective layer of local material and excavated material as bottom storehouse region antiseepage film bedding, is a kind of simple and practicable, effective construction method, and achieve the benefit of preferable economy by selecting subregion seepage control measure；According to the different and different leaky properties of reservoir area landform, the joint anti-seepage method of antiseepage is blocked using bottom storehouse antiseepage film, library bank gunite concrete barrier sheet bedding, concrete, control leakage to the greatest extent, reaches the anti-seepage effect of the full bedding in full library, can be that similar engineering construction is used for reference.
Description
Technical field
The present invention relates to a kind of full library basin Anti-seeping technology structure of karst area and construction methods, belong to water conservancy and hydropower work
The complicated geologicals such as journey technical field more particularly to karst area's reservoir leakage processing technology field.
Background technology
With the development of water resources and hydropower construction cause, the dam that the country is built is more and more, the good dam site of geological conditions
Also fewer and fewer.Currently, many dams are built in the area of karsts developing area, build a dam herein, based process, reservoir periphery and library
The Anti-seeping technology of area's leakage passage is particularly important, while the construction technology handled is also more complicated.
Due to karst area, formation lithology is complicated, and under corrosion, karst area is frequently accompanied by depression, solution cavity, dark
River, sinkhole, the water spot that disappears, karst, coal hole and other Geological Defects and possible leakage passage, make karst area build
When reservoir, since Reservoir region leaks, reservoir can not normal water storage, do not simply fail to complete former design objective, and dam body has leakage
Aquaporin equally jeopardizes the safety of dam body.And solution cavity, the underground river etc. of karst area are difficult to find out, and all find out workload
Greatly, investment is big, and therefore, Karst Reservoir Area leakage problems become the principal element for restricting entire engineering.
There are solution cavity, underground river, karst and other Geological Defects for being difficult to find out and cost is high for karst area
With possible leakage passage, the seepage control method mainly used in engineering at present mainly has：Soft felt bedding antiseepage, concrete paving
Lid antiseepage, the antiseepage of cement bonded sand cemented rock ditch seam, solution cavity will be carried out cement grout and cement sand washing filling, concrete cutoff wall,
Concrete cutoff wall etc. Anti-seeping technology mode.These processing modes mostly be directed to it can be found that specific breakthrough taken
Seepage control measure based on " stifled " is stored as disclosed in the Chinese patent application No. is CN201320712498.5 for karst area
A kind of karst area pressurized tunnel disclosed in the leakage preventing structure of drainage facility, the Chinese patent application No. is CN201320324147.7
Bottom carries and is used for red mud dump in karst terrain disclosed in leakage preventing structure, the Chinese patent application No. is CN200610200048.2
Horizontal leakage preventing structure, red mud dump in karst terrain disclosed in the Chinese patent application No. is CN200610200047.8 draining
A kind of karst area large size is molten disclosed in method and its drainage arrangement and Chinese patent application No. is CN201520779752.2
The composite anti-penetrating structure in hole.
Solution cavity, underground river of karst area etc. are difficult to find out, and all find out heavy workload, and investment is big, therefore use above-mentioned anti-
Ooze treatment measures inevitably occur antiseepage be not thorough, be not comprehensive, uneconomic problem, or even there is the leakage after reservoir filling.And
And soft felt bedding anti-seepage method in above-mentioned seepage control measure, reservoir area shoulder can only be handled, exist for steeper area and be applicable in limitation
The problem of property.To reach the effect of the full library basin antiseepage in karst area, be just badly in need of one kind can in the gentle section antiseepage in reservoir area and
In the leakage preventing structure of reservoir area steep slope section antiseepage.
Invention content
In order to solve the above technical problems, the present invention provides a kind of full library basin Anti-seeping technology structure of karst area and applying
Work method, the full library basin Anti-seeping technology structure of the karst area and construction method are oozed according to the difference and difference of reservoir area landform
Feature is leaked, the full library basin blocked using bottom storehouse impervious barrier bedding, library bank gunite concrete barrier sheet bedding, concrete completely spreads antiseepage
Method carries out antiseepage.
The present invention is achieved by the following technical programs.
A kind of construction method of the full library basin Anti-seeping technology of karst area provided by the invention, includes the following steps：
1. according to normal pool level, reservoir level or less reservoir area coating is cleared up；
2. infiltration lane present in the coating of reservoir level or less reservoir area is verified in exploration, infiltration lane is cleared up；
3. clearing up library bank, Slope leveling is made to come over and pledge allegiance to, irregular groove and fluid bowl is avoided the occurrence of, to the recessed of appearance
Slot and fluid bowl are backfilled using C15 concrete；
4. step 2.~3. handled after, carry out bottom storehouse impervious barrier bedding；
5. setting gradually anti-skidding pier, concrete anti-seepage plate, concrete anchoring groove in the both sides of impervious barrier, construction is completed；
The anti-skidding pier is closely connect with impervious barrier, and impervious barrier is arranged in the position that bottom storehouse steepness is 20 °~30 °, mixes
Solidifying soil barrier sheet is arranged in the position that library bank slope degree is 60 °~75 °, and the setting of concrete anchoring groove is 60 °~75 ° in library bank slope degree
Local location；
The concrete anti-seepage plate carries out antiseepage using gunite concrete, and the part of antiseepage adds reinforcing bar；
The concrete anchoring groove is made of anchor pole and extension bar-mat reinforcement；
The infiltration lane includes disappear water spot, sinkhole, solution cavity, corroded breaking zone；
The impervious barrier includes clay liner, antiseepage film, clay protective layer, metalling；The clay liner, antiseepage film,
Compacting is laid with successively from top to bottom for clay protective layer, metalling.
2. the step is divided into following steps：
(2.1) by the way of concrete blocking, infiltration lane is backfilled with C15 concrete, in infiltration lane
Concrete cover is arranged in surface；
(2.2) it is cleared up in the maximum sized double-wide of infiltration lane plane, cleaning thickness is 25cm, has been cleared up
It is backfilled afterwards with C15 concrete；
(2.3) pass through the backfill and cleaning of step (2.1)~(2.2), C15 concrete and infiltration lane form reservoir area antiseepage
Body.
Based on a kind of full library basin Anti-seeping technology structure of karst area；Including impervious barrier, the impervious barrier includes clay
Bed course, antiseepage film, clay protective layer, metalling, the clay liner, antiseepage film, clay protective layer, metalling from top to bottom according to
Secondary compacting is laid with；The both sides of the impervious barrier successively be equipped with anti-skidding pier, concrete anti-seepage plate, concrete anchoring groove, anti-skidding pier with
Impervious barrier closely connects, and impervious barrier is arranged in the position that bottom storehouse steepness is 20 °~30 °, and concrete anti-seepage plate is arranged in library bank
The position that the gradient is 60 °~75 °, the local location that it is 60 °~75 ° in library bank slope degree that concrete anchoring groove, which is arranged,.
The concrete anti-seepage plate carries out antiseepage using gunite concrete, and the part of antiseepage adds reinforcing bar.
The concrete anchoring groove is made of anchor pole and extension bar-mat reinforcement.
The clay liner, clay protective layer thickness be 50cm, the thickness of metalling is 1m.
The steepness is the angle of inclination of library basin bottom part side slope.
The local location of concrete anchoring groove setting is：The position that library bank slope degree is 70 °~90 °.
The beneficial effects of the present invention are：
1. by selecting subregion seepage control measure, local material and excavated material are taken full advantage of as bottom storehouse region antiseepage film
The protective layer of bedding is a kind of simple and practicable, effective construction method, and achieves the benefit of preferable economy；
2. anti-using bottom storehouse antiseepage film, library bank gunite concrete according to the different and different leaky properties of reservoir area landform
Ooze plate bedding, concrete block antiseepage joint anti-seepage method, to the greatest extent control leakage, reach the antiseepage of the full bedding in full library
Effect can be that similar engineering construction is used for reference.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is concrete anchoring groove drawing of the present invention；
Fig. 3 is basin karst cave treatment plan view in library of the present invention；
Fig. 4 is basin karst cave treatment sectional view in library of the present invention；
In figure：1- clay liners, 2- antiseepage films, 3- clay protective layers, 4- metallings, the anti-skidding piers of 5-, 6- concrete anti-seepages
Plate, 7- concrete anchoring grooves, 8-C15 concrete, 9- infiltration lanes, the reservoir areas 10- impervious body.
Specific implementation mode
Be described further below technical scheme of the present invention, but claimed range be not limited to it is described.
As shown in figures 1-4, the construction method of the full library basin Anti-seeping technology of a kind of karst area, includes the following steps：
1. according to normal pool level, reservoir level or less reservoir area coating (i.e. bottom storehouse) is cleared up；
2. infiltration lane 9 present in the coating of reservoir level or less reservoir area is verified in exploration, infiltration lane 9 is cleared up；
It is specifically divided into following steps：
(2.1) by the way of concrete blocking, infiltration lane 9 is backfilled with C15 concrete eights, in infiltration lane 9
Surface be arranged concrete cover；
(2.2) it is cleared up in the maximum sized double-wide of 9 plane of infiltration lane, cleaning thickness is 25cm, cleaning
It is backfilled with C15 concrete eights after complete；
(2.3) pass through the backfill and cleaning of step (2.1)~(2.2), it is anti-that C15 concrete eights and infiltration lane 9 form reservoir area
Ooze body 10.
3. clearing up library bank, Slope leveling is made to come over and pledge allegiance to, irregular groove and fluid bowl is avoided the occurrence of, to the recessed of appearance
Slot and fluid bowl are backfilled using C15 concrete eights, in case 6 inside of concrete anti-seepage plate occurs making somebody a mere figurehead phenomenon；
4. step 2.~3. handled after, carry out bottom storehouse impervious barrier bedding；
5. setting gradually anti-skidding pier 5, concrete anti-seepage plate 6, concrete anchoring groove 7 in the both sides of impervious barrier, construction is completed,
It is finally reached the full library basin horizontal leakage preventing that bottom storehouse impervious barrier bedding, 6 bedding of library bank gunite concrete barrier sheet and concrete block.
The anti-skidding pier 5 is closely connect with impervious barrier, and impervious barrier is arranged in the position that bottom storehouse steepness is 20 °~30 °, mixes
Solidifying soil barrier sheet 6 is arranged in the position that library bank slope degree is 60 °~75 °, the setting of concrete anchoring groove 7 library bank slope degree be 60 °~
75 ° of local location makes concrete anti-seepage plate 6 be completely embedded with reservoir stability；
The concrete anti-seepage plate 6 carries out antiseepage using gunite concrete, and the part of antiseepage adds reinforcing bar；
The concrete anchoring groove 7 is made of anchor pole and extension bar-mat reinforcement；
The infiltration lane 9 includes disappear water spot, sinkhole, solution cavity, corroded breaking zone；
The impervious barrier includes clay liner 1, antiseepage film 2, clay protective layer 3, metalling 4；The clay liner 1 is prevented
Oozing film 2, clay protective layer 3, metalling 4, compacting is laid with successively from top to bottom.
Based on a kind of full library basin Anti-seeping technology structure of karst area；Including impervious barrier, the impervious barrier includes clay
Bed course 1, antiseepage film 2, clay protective layer 3, metalling 4, the clay liner 1, antiseepage film 2, clay protective layer 3, metalling 4 from
Under to it is upper successively compacting be laid with；The both sides of the impervious barrier are equipped with anti-skidding pier 5, concrete anti-seepage plate 6, concrete anchoring groove successively
7, anti-skidding pier 5 is closely connect with impervious barrier, and impervious barrier is arranged in the position that bottom storehouse steepness is 20 °~30 °, concrete anti-seepage plate
6 are arranged in the position that library bank slope degree is 60 °~75 °, and concrete anchoring groove 7 is arranged in the local position that library bank slope degree is 60 °~75 °
It sets.
The concrete anti-seepage plate 6 carries out antiseepage using gunite concrete, and the part of antiseepage adds reinforcing bar, increases it
Stability avoids the halfway problem of antiseepage.
The concrete anchoring groove 7 is made of anchor pole and extension bar-mat reinforcement, and concrete anti-seepage plate 6 is made to be connect with reservoir stability tightly
It is close, the case where avoiding antiseepage from being not thorough, incomplete problem, prevent from leaking after water storage.
The clay liner 1, clay protective layer 3 thickness be 50cm, the thickness of metalling 4 is 1m, prevents library water through oozing
It leaks channel 9 and leaks.
The steepness is the angle of inclination of library basin bottom part side slope.
The local location that the concrete anchoring groove 7 is arranged is：The position that library bank slope degree is 70 °~90 °, local setting,
So that concrete anchoring groove 7 cooperates with concrete anti-seepage plate 6, preferably achieve the effect that antiseepage.
Preferably, the thickness of clay liner 1 is about 0.5m, is destroyed to prevent antiseepage film 2, after being laid with 2 waterproof blanket of antiseepage film, paving
If geotextiles, the clay protective layer 3 of 0.5m thickness and the rock ballast of 1.0m are laid in geotextiles as metalling, as protective layer,
It is used as ballast simultaneously, to prevent flow scour riverbed.
Further, the reservoir area section gradient is analyzed according to the reservoir area geological section that early period, geological mapping provided first, and
Carry out multidomain treat-ment；For reservoir surrounding bank slope area, that is, library bank, the usual gradient is steeper, using gunite concrete bedding, is formed
Concrete anti-seepage plate 6 does Anti-seeping technology；For general shallower 24 ° or so the regions of library basin bottom part region, that is, bottom storehouse, using anti-
Ooze 2 bedding antiseepage of film；In addition for having verified the leakage passages 9 such as existing sinkhole, the water spot that disappears in reservoir area, implementing bedding
Before, it offsets water spot, sinkhole, corroded breaking zone and carries out antiseepage blocking by the way of the blocking of C15 concrete eights；Bottom storehouse antiseepage film 2
Bedding connects into a complete reliable library basin with 6 bedding of library bank gunite concrete barrier sheet, and library water is prevented to be oozed through leakage passage 9
Leakage.
Claims (8)
1. a kind of construction method of the full library basin Anti-seeping technology of karst area, it is characterised in that：Include the following steps：
1. according to normal pool level, reservoir level or less reservoir area coating is cleared up；
2. infiltration lane (9) present in the coating of reservoir level or less reservoir area is verified in exploration, infiltration lane (9) is cleared up；
3. clearing up library bank, Slope leveling is made to come over and pledge allegiance to, avoids the occurrence of irregular groove and fluid bowl, to the groove of appearance and
Fluid bowl is backfilled using C15 concrete (8)；
4. step 2.~3. handled after, carry out bottom storehouse impervious barrier bedding；
5. setting gradually anti-skidding pier (5), concrete anti-seepage plate (6), concrete anchoring groove (7) in the both sides of impervious barrier, complete to apply
Work；
The anti-skidding pier (5) closely connect with impervious barrier, and impervious barrier is arranged in the position that bottom storehouse steepness is 20 °~30 °, coagulation
Native barrier sheet (6) is arranged in the position that library bank slope degree is 60 °~75 °, and concrete anchoring groove (7) setting is 60 ° in library bank slope degree
~75 ° of local location；
The concrete anti-seepage plate (6) carries out antiseepage using gunite concrete, and the part of antiseepage adds reinforcing bar；
The concrete anchoring groove (7) is made of anchor pole and extension bar-mat reinforcement；
The infiltration lane (9) includes disappear water spot, sinkhole, solution cavity, corroded breaking zone；
The impervious barrier includes clay liner (1), antiseepage film (2), clay protective layer (3), metalling (4)；The clay liner
(1), compacting is laid with successively from top to bottom for antiseepage film (2), clay protective layer (3), metalling (4).
2. the construction method of the full library basin Anti-seeping technology of karst area as described in claim 1, it is characterised in that：The step
Suddenly 2. it is divided into following steps：
(2.1) by the way of concrete blocking, infiltration lane (9) is backfilled with C15 concrete (8), in infiltration lane
(9) concrete cover is arranged in surface；
(2.2) it is cleared up in the maximum sized double-wide of infiltration lane (9) plane, cleaning thickness is 25cm, has been cleared up
It is backfilled afterwards with C15 concrete (8)；
(2.3) pass through the backfill and cleaning of step (2.1)~(2.2), it is anti-that C15 concrete (8) and infiltration lane (9) form reservoir area
Ooze body (10).
3. a kind of full library basin Anti-seeping technology structure of karst area, it is characterised in that：Including impervious barrier, the impervious barrier includes
Clay liner (1), antiseepage film (2), clay protective layer (3), metalling (4), the clay liner (1), antiseepage film (2), clay
Compacting is laid with successively from top to bottom for protective layer (3), metalling (4)；The both sides of the impervious barrier are equipped with anti-skidding pier (5), mix successively
Solidifying soil barrier sheet (6), concrete anchoring groove (7), anti-skidding pier (5) closely connect with impervious barrier, and impervious barrier setting is precipitous in bottom storehouse
Degree is 20 °~30 ° of position, and it is 60 °~75 ° of position, concrete anchoring groove that concrete anti-seepage plate (6), which is arranged in library bank slope degree,
(7) local location for being 60 °~75 ° in library bank slope degree is set.
4. the full library basin Anti-seeping technology structure of karst area as claimed in claim 3, it is characterised in that：The concrete is anti-
It oozes plate (6) and antiseepage is carried out using gunite concrete, the part of antiseepage adds reinforcing bar.
5. the full library basin Anti-seeping technology structure of karst area as claimed in claim 3, it is characterised in that：The concrete anchor
Gu Gou (7) is made of anchor pole and extension bar-mat reinforcement.
6. the full library basin Anti-seeping technology structure of karst area as claimed in claim 3, it is characterised in that：The clay liner
(1), the thickness of clay protective layer (3) is 50cm, and the thickness of metalling (4) is 1m.
7. the full library basin Anti-seeping technology structure of karst area as claimed in claim 3, it is characterised in that：The steepness is
The angle of inclination of library basin bottom part side slope.
8. the full library basin Anti-seeping technology structure of karst area as claimed in claim 3, it is characterised in that：The concrete anchor
Gu Gou (7) setting local location be：The position that library bank slope degree is 70 °~90 °.
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Cited By (4)
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| CN109826155A (en) * | 2019-03-21 | 2019-05-31 | 中建五局土木工程有限公司 | Karst Geological Landscape river structure and its construction method |
| CN112272984A (en) * | 2020-10-23 | 2021-01-29 | 南京朴厚生态科技有限公司 | Coastal zone micro-ecological environment restoration system and construction method thereof |
| CN114427214A (en) * | 2022-03-07 | 2022-05-03 | 中冶长天国际工程有限责任公司 | Dam foundation reservoir bottom seepage-proofing paving structure and building method thereof |
| CN115467291A (en) * | 2022-10-29 | 2022-12-13 | 中国水利水电建设工程咨询贵阳有限公司 | Go up storehouse basin seepage prevention structure |
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| CN112272984A (en) * | 2020-10-23 | 2021-01-29 | 南京朴厚生态科技有限公司 | Coastal zone micro-ecological environment restoration system and construction method thereof |
| CN114427214A (en) * | 2022-03-07 | 2022-05-03 | 中冶长天国际工程有限责任公司 | Dam foundation reservoir bottom seepage-proofing paving structure and building method thereof |
| CN114427214B (en) * | 2022-03-07 | 2023-12-29 | 中冶长天国际工程有限责任公司 | Dam foundation reservoir bottom seepage-proofing paving structure and construction method thereof |
| CN115467291A (en) * | 2022-10-29 | 2022-12-13 | 中国水利水电建设工程咨询贵阳有限公司 | Go up storehouse basin seepage prevention structure |
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Application publication date: 20180918 |