CN109469042A - Seepage-proofing karst cave processing structure for storage yard field area - Google Patents
Seepage-proofing karst cave processing structure for storage yard field area Download PDFInfo
- Publication number
- CN109469042A CN109469042A CN201811505890.6A CN201811505890A CN109469042A CN 109469042 A CN109469042 A CN 109469042A CN 201811505890 A CN201811505890 A CN 201811505890A CN 109469042 A CN109469042 A CN 109469042A
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- Prior art keywords
- karst cave
- solution cavity
- antiseepage
- stockyard
- underground water
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000012545 processing Methods 0.000 title abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000004567 concrete Substances 0.000 claims abstract description 31
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 21
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 18
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 18
- 238000005728 strengthening Methods 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 19
- 239000004746 geotextile Substances 0.000 claims description 17
- 239000002689 soil Substances 0.000 claims description 15
- 239000004927 clay Substances 0.000 claims description 14
- 229920006262 high density polyethylene film Polymers 0.000 claims description 13
- 239000011241 protective layer Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 6
- 239000000243 solution Substances 0.000 description 58
- 238000000034 method Methods 0.000 description 11
- 238000010276 construction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Hydrology & Water Resources (AREA)
- Lining And Supports For Tunnels (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention provides a karst cave processing structure of an impermeable yard field region, which comprises a reinforced concrete cover plate; the reinforced concrete cover plate covers the concrete cushion layer, the concrete cushion layer is laminated in the reinforcing layer, the bottom of the concrete cushion layer is provided with a karst cave, and the area of the concrete cushion layer is larger than the top opening of the karst cave; the top surfaces of the reinforced concrete cover plate and the reinforced layer are covered with an anti-seepage system; an HDPE pipe penetrates through the anti-seepage system, the reinforced concrete cover plate and the concrete cushion layer and is explored into the karst cave; the underground water draining pipe passes through the strengthening layer. The invention can drain the underground water through the karst cave and the underground water drainage system, effectively solves the problem that the traditional karst cave landfill treatment technology can not discharge the underground water, and avoids the damage of overhigh water level of the underground water to the seepage-proofing system.
Description
Technical field
The present invention relates to a kind of antiseepage stockyard place karst cave treatment structures.
Background technique
Solution cavity is that underground water long-term corrosion in In Limestone Area is formed by the complicated underground space, meets with solution cavity in construction project
When, if do not handled in time it, it will increase the risk of entire engineering, or even engineering accident occurs.
Existing Treatment technology of karst cave mainly fills, just for different type of cavern, the embedding material taken and
Landfill is different.
(1) traditional treatment method: heavy excavation construction or toward solution cavity grout injection or concrete, this method general duration compared with
It is long, costly and be unable to ensure being sufficient filling with for solution cavity.
(2) utilizing works waste soil fills solution cavity: utilizing works waste soil is prepared into bubble composite soil as underground karst cavity
Packing material, specific steps include: geological mapping, collapse hole protection, drilling, bore flushing, prepare bubble composite soil, slip casting make
Industry etc..This method can guarantee being sufficient filling with for solution cavity.
(3) fill method of different materials is used to different types of solution cavity: first being classified to solution cavity, according to different
Type of cavern uses different fill methods.Specific steps include: the method to small-sized solution cavity using backfill clay drilling Gu Bi；
Hole is blocked up using slabstone clay to medium-sized solution cavity and builds wall approach, slabstone soil cement pulping method is used for large-scale solution cavity.This method is directed to
Different types of solution cavity uses different processing methods, is conducive to save material, shortens construction period, improves construction efficiency.
Existing solution cavity landfill disposal technology, is not able to satisfy the karst cave treatment requirement of antiseepage stockyard place.Firstly, existing
Solution cavity landfill disposal technology solution cavity channel is blocked completely after, underground water cannot be drained by solution cavity again, if underground
Water water level is excessively high to generate huge jacking force to the seepage control system in antiseepage stockyard, causes the destruction of seepage control system；Secondly, existing
Solution cavity landfill disposal technology be not able to satisfy antiseepage stockyard seepage control system laying flatness requirement；Last existing solution cavity landfill
Processing technique cannot avoid the differential settlement of solution cavity backfill substance under external force completely, once differential settlement occurs must
So cause the destruction of seepage control system.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of antiseepage stockyard place karst cave treatment structure, the antiseepage heap
Field place karst cave treatment structure can smoothly drain underground water, be able to satisfy the flatness requirement of antiseepage stockyard seepage control system laying, and
It is avoided that the differential settlement of solution cavity under external force damages seepage control system.
The present invention is achieved by the following technical programs.
A kind of antiseepage stockyard place provided by the invention karst cave treatment structure, including reinforced concrete cover plate；The reinforcing bar
Concrete cover covers on concrete cushion, and concrete mats are laminated in strengthening layer, has solution cavity in concrete cushion bottom and mixes
Solidifying soil padding area is greater than the top opening of solution cavity；The reinforced concrete cover plate and strengthening layer top surface are covered with seepage control system；Have
HDPE pipe is probeed into across seepage control system, reinforced concrete cover plate, concrete cushion into solution cavity；There is underground water discharge guiding pipe from reinforcing
It is crossed in layer.
The solution cavity is divided into shallow karst cavity and latent solution cavity two types, when solution cavity is shallow karst cavity, is filled in solution cavity
Backfill sandy gravel.
Backfill sandy gravel compactness in solution cavity is not less than 0.93.
The concrete cushion is C15 concrete, with a thickness of 10cm.
The seepage control system is multilayer, and basal layer, clay protective layer, GCL soil blanket, smooth surface HDPE are up followed successively by from bottom
Film, protective layer geotextiles.
The GCL soil blanket specification is 4800g/m2, protective layer geotextiles are filament nonwoven geotextiles, specification 600g/m2。
The smooth surface HDPE film specification is 2.0mm, and smooth surface HDPE film carries out local overlap joint across position in HDPE pipe and adopts
It is squeezed out and is welded with single weld seam, the lap of splice is not less than 0.5m in the horizontal direction, and vertical direction is not less than 0.7m.
The HDPE that the HDPE pipe is Ф 160 is managed.
The underground water discharge guiding pipe, geotextiles, backfill rubble, backfill clay form underground water guide system, wherein underground
Water discharge guiding pipe is passed through from backfill rubble fill part.
The beneficial effects of the present invention are: underground water can be drained by solution cavity and underground water guide system, be had
Effect solves the problems, such as that traditional solution cavity landfill disposal technology cannot discharge underground water, and it is excessively high to antiseepage to avoid groundwater level
The destruction of system；By the way that reinforced concrete cover plate is arranged on solution cavity top cover layer surface, the existing solution cavity of effective solution is filled out
It buries processing technique and is not able to satisfy the problem of antiseepage stockyard seepage control system is laid with flatness requirement, can be avoided solution cavity backfill substance and exist
Destruction of the differential settlement generated under external force to seepage control system；Pipe wears the application of membrane technology, wears this antiseepage of film to pipe
System weak part has carried out reinforcement, can effectively avoid the leakage of the sewage such as percolate here, have to antiseepage stockyard
Great use value.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the present invention is applied to shallow karst cavity；
Fig. 2 is the structural schematic diagram that the present invention is applied to latent solution cavity；
Fig. 3 is the face A-A cross-sectional view in Fig. 1 and Fig. 2；
Fig. 4 is the thin portion structural schematic diagram of HDPE pipe in Fig. 1 and Fig. 2.
In figure: 1- basement rock, the stratum 2- line of demarcation, 3- strengthening layer, 4- seepage control system, 5- solution cavity, 6- backfill sandy gravel, and 7- is mixed
Solidifying soil padding, 8- reinforced concrete cover plate, 9- underground water discharge guiding pipe, 10- geotextiles, 11- backfill rubble, and 12- backfills clay,
13- french drain, 14- smooth surface HDPE film, 15-HDPE pipe, 16- weld seam.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
A kind of antiseepage stockyard place karst cave treatment structure as shown in Figures 1 to 4, including reinforced concrete cover plate 8；It is described
Reinforced concrete cover plate 8 covers on concrete cushion 7, and concrete cushion 7 is pressed in strengthening layer 3, has in 7 bottom of concrete cushion
Solution cavity 5 and 7 area of concrete cushion are greater than the top opening of solution cavity 5；The reinforced concrete cover plate 8 and 3 top surface of strengthening layer are covered
There is seepage control system 4；There is HDPE pipe 15 to pass through seepage control system 4, reinforced concrete cover plate 8, concrete cushion 7 to probe into solution cavity 5；
There is underground water discharge guiding pipe 9 to cross from strengthening layer 3.
The solution cavity 5, which divides, to be filled out in solution cavity 5 for shallow karst cavity and latent solution cavity two types when solution cavity 5 is shallow karst cavity
There is backfill sandy gravel 6.
The backfill sandy gravel 6 compactness in solution cavity 5 is not less than 0.93.
The concrete cushion 7 is C15 concrete, with a thickness of 10cm.
The seepage control system 4 is multilayer, and basal layer, clay protective layer, GCL soil blanket, smooth surface are up followed successively by from bottom
HDPE film 14, protective layer geotextiles.
The GCL soil blanket specification is 4800g/m2, protective layer geotextiles are filament nonwoven geotextiles, specification 600g/m2。
14 specification of smooth surface HDPE film is 2.0mm, and smooth surface HDPE film 14 passes through position in HDPE pipe 15 and carries out local take
It connects and single weld seam 16 is used to squeeze out welding, the lap of splice is not less than 0.5m in the horizontal direction, and vertical direction is not less than 0.7m.
The HDPE that the HDPE pipe 15 is Ф 160 manages (SDR13.6).
The underground water discharge guiding pipe 9, geotextiles 10, backfill rubble 11, backfill clay 12 form underground water guide system,
Middle underground water discharge guiding pipe 9 is passed through from backfill 11 fill part of rubble.
More generally, the present invention is broadly divided into following several parts: a. solution cavity structure and treatment measures, b. underground water guide
System, c. seepage control system, d. pipe wear membranous system.
Wherein:
Solution cavity structure and treatment measures are divided into shallow karst cavity structure and treatment measures and latent solution cavity structure and treatment measures.
Wherein, shallow karst cavity structure and treatment measures are by basement rock 1, stratum line of demarcation 2, strengthening layer 3, seepage control system 4, solution cavity 5, Cast-in-situ Piles in Sand-filling
Gravel material 6, concrete cushion 7 and reinforced concrete cover plate 8 form；Latent solution cavity structure and treatment measures basement rock 1, stratum line of demarcation
2, middle differentiation layer/strengthening layer 3, seepage control system 4, solution cavity 5, concrete cushion 7 and reinforced concrete cover plate 8 form.
Underground water guide system is made of underground water discharge guiding pipe 9, geotextiles 10, backfill rubble 11, backfill clay 12.
Pipe is worn membranous system and is made of smooth surface HDPE film 14, HDPE pipe 15 and weld seam 16.
It, can be in accordance with the following steps when operation:
1) coating removing is carried out to stratum upper surface a certain range at the top of solution cavity 5 (shallow karst cavity or latent solution cavity), it is right
Shallow karst cavity filling backfill sandy gravel 6, successively construct on the basis of coating or backfill sandy gravel 6 concrete cushion 7 and steel
Reinforced concrete cover board 8；
2) slope excavation is carried out to underground water guide french drain 13, the laying of geotextiles 10, bottom is successively carried out after excavation
The backfill of rubble 11, underground water discharge guiding pipe 9 are laid with, the backfill of upper layer rubble 11, geotextiles 10 suture, backfill clay 12 is filled, wherein
5 top underground water guide system of solution cavity is default when karst cave treatment measure is implemented, and implementation sequence is same as above；
3) on the basis of 5 treatment measures of solution cavity and finished underground water guide system, applying for seepage control system 4 is carried out
Work, sequence of construction be followed successively by basal layer roll, clay protective layer be laid with roll, GCL soil blanket be laid with, smooth surface HDPE film 14 be laid with
With welding and protective layer geotextile laying；
4) pipe wears HDPE pipe 15 pre-buried, smooth surface HDPE film 14 and DPE pipe 15 in the implementation of 5 treatment measures of solution cavity in membranous system
Be welded in seepage control system implementation when smooth surface HDPE film 14 is laid with.
In addition, in the specific implementation, it should also be noted that:
1) reinforced concrete cover plate 7 should should be greater than solution cavity 5 using C25 concrete and Ф 16HRB300 reinforcing bar, coverage area
Sideline about 1m；The label of reinforced concrete cover plate 7, the specification of size and reinforcing bar, spacing can be according to practical geological conditions and solution cavity 5
The case where through Structure Calculation is determining or adjustment；
2) supervisor of underground water discharge guiding pipe 9 uses Ф 315HDPE floral tube (SDR13.6), and branch pipe uses Ф 200HDPE floral tube
(SDR13.6)；20 hole a Ф is opened for every 45 degree in pipe circumferential direction, and the every 12cm in pipe range direction opens 20 hole a Ф, and aperture is using quincunx
Arrangement；
3) backfill rubble 11 uses 3~5cm of diameter rubble, and compactness is not less than 0.93；
4) backfill 12 compactness of clay is not less than 0.93, to avoid differential settlement；
5) 13 cross section of french drain is inverted trapezoidal, and bottom width 0.6m, top width 2.1m, a height of 1.5m excavate side
The slope gradient is 1:0.5；
6) the basic roadbed of seepage control system 4 is not less than 0.93, to avoid differential settlement；
7) 4 clay protective layer thickness of seepage control system is not less than 60cm, and compactness is not less than 0.93, and it is uneven heavy to avoid
Drop.
Claims (9)
1. a kind of antiseepage stockyard place karst cave treatment structure, including reinforced concrete cover plate (8), it is characterised in that: the reinforcing bar
Concrete cover (8) covers on concrete cushion (7), and concrete cushion (7) is pressed in strengthening layer (3), in concrete cushion (7)
Solution cavity (5) is arranged at bottom and concrete cushion (7) area is greater than the top opening of solution cavity (5)；The reinforced concrete cover plate (8) and
Strengthening layer (3) top surface is covered with seepage control system (4)；There is HDPE pipe (15) to pass through seepage control system (4), reinforced concrete cover plate (8), mix
Solidifying soil padding (7) are probeed into solution cavity (5)；There is underground water discharge guiding pipe (9) to cross from strengthening layer (3).
2. antiseepage stockyard as described in claim 1 place karst cave treatment structure, it is characterised in that: the solution cavity (5) is divided into shallowly
Solution cavity and latent solution cavity two types are buried, when solution cavity (5) are shallow karst cavity, is filled with backfill sandy gravel (6) in solution cavity (5).
3. antiseepage stockyard as claimed in claim 2 place karst cave treatment structure, it is characterised in that: the backfill sandy gravel (6)
Compactness is not less than 0.93 in solution cavity (5).
4. antiseepage stockyard as described in claim 1 place karst cave treatment structure, it is characterised in that: the concrete cushion (7)
For 15 concrete of C, with a thickness of 10cm.
5. antiseepage stockyard as described in claim 1 place karst cave treatment structure, it is characterised in that: the seepage control system (4) is
Multilayer is up followed successively by basal layer, clay protective layer, GCL soil blanket, smooth surface HDPE film (14), protective layer geotextiles from bottom.
6. antiseepage stockyard as claimed in claim 5 place karst cave treatment structure, it is characterised in that: the GCL soil blanket specification is
4800g/m2, protective layer geotextiles are filament nonwoven geotextiles, specification 600g/m2。
7. antiseepage stockyard as claimed in claim 5 place karst cave treatment structure, it is characterised in that: the smooth surface HDPE film (14)
Specification is 2.0mm, and smooth surface HDPE film (14) is passed through the local overlap joint of position progress in HDPE pipe (15) and squeezed using single weld seam (16)
It welds out, the lap of splice is not less than 0.5m in the horizontal direction, and vertical direction is not less than 0.7m.
8. antiseepage stockyard as described in claim 1 place karst cave treatment structure, it is characterised in that: the HDPE pipe (15) is Ф
160 HDPE pipe.
9. antiseepage stockyard as described in claim 1 place karst cave treatment structure, it is characterised in that: the underground water discharge guiding pipe
(9), geotextiles (10), backfill rubble (11), backfill clay (12) form underground water guide system, wherein underground water discharge guiding pipe
(9) it is passed through from backfill rubble (11) fill part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505890.6A CN109469042B (en) | 2018-12-10 | 2018-12-10 | Anti-seepage storage yard field karst cave processing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505890.6A CN109469042B (en) | 2018-12-10 | 2018-12-10 | Anti-seepage storage yard field karst cave processing structure |
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| Publication Number | Publication Date |
|---|---|
| CN109469042A true CN109469042A (en) | 2019-03-15 |
| CN109469042B CN109469042B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811505890.6A Active CN109469042B (en) | 2018-12-10 | 2018-12-10 | Anti-seepage storage yard field karst cave processing structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886305A (en) * | 2019-11-08 | 2020-03-17 | 济南轨道交通集团有限公司 | Foundation pit water burst layered backfilling and plugging method based on protection karst water channel |
| CN110886308A (en) * | 2019-11-08 | 2020-03-17 | 济南轨道交通集团有限公司 | Rapid frozen groundwater plugging method based on protection karst water channel |
| CN110984120A (en) * | 2019-12-31 | 2020-04-10 | 桂林电子科技大学 | Filling structure of shallow-buried non-pressure water-filled karst cave and construction method thereof |
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|---|---|---|---|---|
| US6719493B1 (en) * | 1999-07-13 | 2004-04-13 | Friedrich Meyer | Method and system for encasing an endless, laid pipeline conduit with backfill concrete |
| CN203742622U (en) * | 2013-11-13 | 2014-07-30 | 江南水利水电工程公司 | Seep-proof component for constructing bearing structure |
| CN105201001A (en) * | 2015-10-10 | 2015-12-30 | 中国电建集团贵阳勘测设计研究院有限公司 | Composite seepage-proofing structure of large karst cave in karst region and construction method thereof |
| CN106013178A (en) * | 2016-05-25 | 2016-10-12 | 河北建设勘察研究院有限公司 | Filling method for karst surface collapse of shallow-buried karst area |
| CN209482289U (en) * | 2018-12-10 | 2019-10-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Seepage-proofing karst cave processing structure for storage yard field area |
-
2018
- 2018-12-10 CN CN201811505890.6A patent/CN109469042B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6719493B1 (en) * | 1999-07-13 | 2004-04-13 | Friedrich Meyer | Method and system for encasing an endless, laid pipeline conduit with backfill concrete |
| CN203742622U (en) * | 2013-11-13 | 2014-07-30 | 江南水利水电工程公司 | Seep-proof component for constructing bearing structure |
| CN105201001A (en) * | 2015-10-10 | 2015-12-30 | 中国电建集团贵阳勘测设计研究院有限公司 | Composite seepage-proofing structure of large karst cave in karst region and construction method thereof |
| CN106013178A (en) * | 2016-05-25 | 2016-10-12 | 河北建设勘察研究院有限公司 | Filling method for karst surface collapse of shallow-buried karst area |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886305A (en) * | 2019-11-08 | 2020-03-17 | 济南轨道交通集团有限公司 | Foundation pit water burst layered backfilling and plugging method based on protection karst water channel |
| CN110886308A (en) * | 2019-11-08 | 2020-03-17 | 济南轨道交通集团有限公司 | Rapid frozen groundwater plugging method based on protection karst water channel |
| CN110984120A (en) * | 2019-12-31 | 2020-04-10 | 桂林电子科技大学 | Filling structure of shallow-buried non-pressure water-filled karst cave and construction method thereof |
| CN110984120B (en) * | 2019-12-31 | 2020-09-25 | 桂林电子科技大学 | Filling structure of shallow-buried non-pressure water-filled karst cave and construction method thereof |
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|---|---|
| CN109469042B (en) | 2024-03-26 |
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