CN114763695B - Artificial dam body of underground reservoir and construction method thereof - Google Patents
Artificial dam body of underground reservoir and construction method thereof Download PDFInfo
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- CN114763695B CN114763695B CN202110050190.8A CN202110050190A CN114763695B CN 114763695 B CN114763695 B CN 114763695B CN 202110050190 A CN202110050190 A CN 202110050190A CN 114763695 B CN114763695 B CN 114763695B
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- 239000004927 clay Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000003245 coal Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000004567 concrete Substances 0.000 claims description 22
- 239000011449 brick Substances 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000002955 isolation Methods 0.000 abstract description 4
- 238000004873 anchoring Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 62
- 238000012423 maintenance Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/06—Earth-fill dams; Rock-fill dams
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/16—Modification of mine passages or chambers for storage purposes, especially for liquids or gases
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Ocean & Marine Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Revetment (AREA)
Abstract
The invention provides an artificial dam body of an underground reservoir and a construction method thereof, wherein the method comprises the following steps: step one, respectively forming a first groove and a second groove on reserved coal pillars on two sides of a dam foundation of the artificial dam body; step two, digging a foundation trench on the dam foundation along the direction from the first groove to the second groove; step three, uniformly laying quantitative water storage clay in the base groove, tamping, and smearing waterproof gel on the inner walls of the first groove and the second groove, the base groove and the top wall of the goaf above the base groove; and fourthly, constructing the artificial dam body in the base groove along the direction from the first groove to the second groove. According to the technical scheme, the water storage and water isolation functions of the dam foundation can be improved and seepage of the dam foundation is prevented through the bedding of the water storage clay on the bottom of the dam foundation; the sealing performance of the joint of the dam body and the coal pillar can be improved by smearing and anchoring the waterproof gel on the joint of the groove.
Description
Technical Field
The invention relates to the technical field of underground reservoirs in coal mines, in particular to an artificial dam body of an underground reservoir and a construction method thereof.
Background
In western ecology fragile mining areas of China, an underground reservoir water storage technology has become an important component of a coal water resource co-mining technology, wherein the stability of an artificial dam body is one of key factors for evaluating whether the underground reservoir can be constructed and used safely for a long time. At present, the artificial dam body reduces the osmotic pressure and the osmotic quantity around the water retaining dam body by means of measures such as anti-seepage curtain and the like, but the anti-seepage effect is not ideal, and the requirements of leakage prevention, stability and the like of the underground reservoir dam body cannot be met.
The seepage of the artificial dam body mainly comprises two forms of dam-surrounding seepage and dam foundation seepage, and the artificial dam body is mostly vertically embedded into a coal pillar dam body and surrounding rock, so that the artificial dam body is high in stress and insufficient in stability, and the joint of the artificial dam body and the coal pillar, the joint of the artificial dam body and the dam foundation and the artificial dam body are poor in sealing property and seepage resistance, and the requirements of high seepage resistance and safe reliability of the artificial dam body of the underground coal mine reservoir cannot be met by the existing artificial dam body and dam body construction method. Therefore, a method for improving the sealing and seepage preventing effects and the safety and reliability of the artificial dam body is urgently needed to solve the problems.
Disclosure of Invention
Aiming at the problems in the prior art, the application provides an artificial dam body of an underground reservoir and a construction method thereof, wherein the water storage and water isolation functions of the dam foundation can be improved by laying water storage clay on the bottom of the dam foundation, and seepage of the dam foundation is prevented; the sealing performance of the joint of the dam body and the coal pillar can be improved by smearing and anchoring the waterproof gel on the joint of the groove.
In a first aspect, the invention provides a method for constructing an artificial dam of an underground reservoir, comprising the following steps:
Step one, respectively forming a first groove and a second groove on reserved coal pillars on two sides of a dam foundation of the artificial dam body, wherein the notches of the first groove and the second groove are opposite to each other;
Digging a foundation groove on the dam foundation along the direction from the first groove to the second groove, wherein two ends of the foundation groove extend to the bottoms of the first groove and the second groove respectively and are communicated with the first groove and the second groove;
Step three, uniformly laying quantitative water storage clay in the base groove, tamping, and smearing waterproof gel on the inner walls of the first groove and the second groove, the base groove and the top wall of the goaf above the base groove;
and fourthly, constructing the artificial dam body in the base groove along the direction from the first groove to the second groove, wherein the top of the artificial dam body is contacted with the top wall of the goaf.
In one embodiment, in step one, further comprising: and determining the construction areas of the underground reservoir and the artificial dam, wherein the construction areas meet the geological structure which is stable and has no fracture, fault and staggered layer.
In one embodiment, in step three, further comprising: and curing the waterproof gel. Through this embodiment, after the maintenance of waterproof gel, its antiseep effect reaches the best.
In one embodiment, in step four, further comprising: and coating waterproof gel on the surface of the water facing side of the artificial dam body. According to the embodiment, the waterproof gel is smeared on the surface of the artificial dam body, so that the erosion of the water body to the artificial dam body can be prevented.
In one embodiment, in the fourth step, the artificial dam is constructed to include:
the concrete layers are positioned at two ends of the artificial dam body and are constructed in the first groove and the second groove;
the clay layer is positioned in the middle of the artificial dam body;
and the red brick layer is positioned between the clay layer and the concrete layer.
In one embodiment, a waterproof gel is applied between the concrete layer and the red brick layer, and between the red brick layer and the clay layer.
In one embodiment, the base groove is arc-shaped, the first groove and the second groove are arc-shaped corresponding to the base groove, and the artificial dam body is an arch dam. According to the method, the arch structure breaks down the stress of the artificial dam body, and the damage condition of the dam body under the action of dynamic load can be improved; meanwhile, the arched shape increases the corresponding contact surface area, and the artificial dam body has better sealing performance by being matched with waterproof gel and water storage clay.
In a second aspect, the invention provides an artificial dam body of an underground reservoir, which is built by adopting the building method.
In one embodiment, the artificial dam has a clay layer, a red brick layer, and a concrete layer with a length ratio of 10:3:5.
In one embodiment, the clay layer has a length of 2 to 2.3m.
The above-described features may be combined in various suitable ways or replaced by equivalent features as long as the object of the present invention can be achieved.
Compared with the prior art, the artificial dam body of the underground reservoir and the construction method thereof have the following beneficial effects:
1. The underground reservoir is built on the basis of the goaf, the water resources stored in the mine underground space resources are fully utilized, the development and utilization rate of the underground space resources is improved, the safety of the reservoir is improved, the construction difficulty and construction cost of the underground reservoir are greatly reduced, and the underground reservoir is economical and environment-friendly;
2. According to the artificial dam construction method, the water storage and water isolation functions of the dam foundation can be improved through the bedding of the water storage clay on the bottom of the dam foundation, and seepage of the dam foundation is prevented; the sealing performance of the joint of the dam body and the coal pillar can be improved by smearing and anchoring the waterproof gel on the joint of the groove; and the erosion of the mine water to the artificial dam body is prevented by utilizing the waterproof gel on the inner surface of the artificial dam body. Meanwhile, the shape of the artificial dam body is further designed into an arch shape, so that the stress of the artificial dam body is decomposed, and the damage condition of the dam body under the action of dynamic load can be improved; and the contact surface is increased due to the arched shape, and the artificial dam body has better sealing performance by being matched with waterproof gel and water storage clay.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
FIG. 1 shows a schematic diagram of a dam foundation and reserved coal pillars corresponding to an artificial dam of the present invention;
FIG. 2 shows a schematic diagram of the structure of the artificial dam of the present invention with water storage ceramic being laid in the foundation trench on the dam foundation;
FIG. 3 shows a schematic diagram of the structure of the concave side of the artificial dam of the present invention;
FIG. 4 shows a schematic diagram of the structure of the outer convex surface side of the artificial dam of the present invention;
FIG. 5 shows a schematic structural view of a multi-layer structure inside an artificial dam of the present invention.
In the drawings, like parts are designated with like reference numerals. The figures are not to scale.
Reference numerals:
1-dam foundation, 11-foundation trench, 2-reserved coal pillar, 21-first groove, 22-second groove, 3-water storage clay, 4-artificial dam, 41-concrete layer, 42-red brick layer, 43-clay layer and 5-waterproof gel.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Example 1
The embodiment provides a construction method of an artificial dam of an underground reservoir, which comprises the following steps:
Step one, determining the construction areas of an underground reservoir and an artificial dam body 4, wherein the construction areas meet the geological structure which is stable and has no fracture, fault and staggered layer;
The reserved coal pillars 2 on two sides of the dam foundation 1 of the artificial dam body 4 are respectively provided with a first groove 21 and a second groove 22, and the notches of the first groove 21 and the second groove 22 are opposite to each other.
Specifically, the underground reservoir is built on the basis of the goaf, underground space resources of a mine are fully utilized, the development and utilization rate of the underground space resources are improved, the safety of the reservoir is improved, the construction difficulty and construction cost of the underground reservoir are greatly reduced, and obvious economic benefit and environmental protection are achieved. After the construction areas of the underground reservoir and the artificial dam 4 in the goaf are determined, the dam foundation 1 forming the artificial dam 4 is excavated at the corresponding position, as shown in figure 1 of the accompanying drawings. The two sides of the dam foundation 1 are reserved coal pillars 2 serving as coal pillar dams of the underground reservoir, a first groove 21 and a second groove 22 are respectively formed in the surfaces of the reserved coal pillars 2 on the two sides, which correspond to each other, and the notches of the first groove 21 and the second groove 22 are opposite to each other. The height of the first groove 21 and the second groove 22 in the vertical direction is the same as the height of the reserved coal pillar 2, and the bottoms of the first groove 21 and the second groove 22 are flush with the upper surface of the dam foundation 1.
And step two, excavating a foundation groove 11 on the dam foundation 1 along the direction from the first groove 21 to the second groove 22, wherein two ends of the foundation groove 11 respectively extend to the bottoms of the first groove 21 and the second groove 22 and are communicated with the first groove 21 and the second groove 22.
Specifically, as shown in fig. 1 of the accompanying drawings, two ends of a foundation trench 11 dug out from a dam foundation 1 extend to bottoms of a first trench 21 and a second trench 22 respectively and are communicated with the first trench 21 and the second trench 22 into a whole, and a trench bottom of the foundation trench 11 serves as a wall surface at bottoms of the first trench 21 and the second trench 22.
Step three, uniformly laying and tamping a certain amount of water storage clay 3 in the base groove 11, and smearing waterproof gel 5 on the inner walls of the first groove 21 and the second groove 22, in the base groove 11 and on the top wall of the goaf above the base groove 11; the waterproof gel 5 is cured.
Specifically, as shown in figure 2 of the drawings, after the foundation trench 11 is excavated, uniformly paving a layer of water storage pottery clay 3 in the foundation trench 11, tamping, and controlling the paving amount of the water storage pottery clay 3 to enable the tamped water storage pottery clay 3 to just fill the foundation trench 11; the water storage pottery clay 3 can improve the water storage and water isolation functions of the dam foundation 1 and prevent seepage of the dam foundation 1. And then, the waterproof gel 5 is smeared on the corresponding wall surface to realize the waterproof of the contact surface. The waterproof gel 5 in the base tank 11 is smeared on the upper surface of the tamped water storage clay 3. After the waterproof gel 5 is smeared, maintenance is needed, and after the waterproof gel 5 on the surface layer is maintained, the artificial dam 4 is built.
Constructing an artificial dam body 4 in the foundation groove 11 along the direction from the first groove 21 to the second groove 22, enabling the top of the artificial dam body 4 to be in contact with the top wall of the goaf, and smearing waterproof gel 5 on the surface of the water facing side of the artificial dam body 4; the artificial dam 4 is constructed to include:
the concrete layer 41, the concrete layer 41 locates at both ends of the artificial dam body 4 and builds in first recess 21 and second recess 22;
a clay layer 43, wherein the clay layer 43 is positioned in the middle of the artificial dam body 4;
red brick layer 42, red brick layer 42 being located between clay layer 43 and concrete layer 41.
Specifically, as shown in fig. 3 to 5 of the drawings, the artificial dam 4 is constructed along the direction of the foundation trench 11, two concrete layers 41 are respectively arranged at two ends of the artificial dam 4 and are positioned in the first groove 21 and the second groove 22, a clay layer 43 is arranged in the middle of the artificial dam 4, and a red brick layer 42 is respectively arranged between the clay layer 43 and the concrete layers 41 at two sides. The concrete layer 41 has a larger contact area with the first groove 21 and the second groove 22, thereby realizing stable connection and further connecting the artificial dam 4 and the reserved coal pillar 2. The multi-layer structure of the concrete layer 41, the clay layer 43 and the red brick layer 42 can significantly improve the stability and safety of the structure of the artificial dam 4.
Meanwhile, waterproof gel 5 is smeared on the surface of the water facing side of the artificial dam body 4, so that the erosion of the water body to the artificial dam body 4 can be prevented. Preferably, waterproof gel 5 is coated on both side surfaces of the surface of the artificial dam 4 to strengthen the erosion resistance of the artificial dam 4.
Preferably, in the fourth step, when the artificial dam 4 is constructed, the waterproof gel 5 is coated between the concrete layer 41 and the red brick layer 42 and between the red brick layer 42 and the clay layer 43, so as to enhance the tightness of the artificial dam 4.
Preferably, in the second step, when the foundation trench 11 is excavated, the foundation trench 11 is excavated into an arc shape, and the first groove 21 and the second groove 22 are both arc shapes corresponding to the foundation trench 11, and when the artificial dam 4 is constructed, the artificial dam 4 is constructed into an arch dam along the foundation trench 11.
Specifically, as shown in fig. 3 and 4 of the accompanying drawings, the artificial dam 4 is an arch dam. The dam body of the existing underground reservoir is of a regular plane vertical structure, and the dam body of the structure is easy to damage due to uneven stress, so that the artificial dam body 4 is designed to be arched for improving the stress condition of the artificial dam body 4, the artificial dam body 4 of the arched structure can enable the stress of the artificial dam body 4 to be more uniform, the risk that the artificial dam body 4 is damaged due to overlarge local stress is reduced, the service life of the artificial dam body 4 is prolonged, and the structural stability and safety of the underground reservoir are improved.
And fifthly, curing the artificial dam body 4, wherein the artificial dam body 4 is put into use after curing.
Specifically, the clay layer 43, the red brick layer 42 and the concrete layer 41 of the artificial dam body 4 are respectively maintained according to corresponding construction standards, and are put into use after being maintained for a specified time. In addition, the maintenance time of the waterproof gel 5 and the water storage clay 3 with different specifications is considered, and after the artificial dam body 4 is constructed, the artificial dam body is put into use after maintenance for a specified time by referring to the specifications of the water storage clay 3 and the waterproof gel 5 according to the building construction standard.
Example two
The embodiment provides an artificial dam body 4 of an underground reservoir, which is built by adopting the building method in the first embodiment.
Specifically, as shown in fig. 3 to 5 of the accompanying drawings, an artificial dam 4 constructed by the construction method of the first embodiment is located between the reserved coal pillars 2 on both sides. The height of the artificial dam 4 is equal to the distance from the dam foundation 1 to the goaf top wall, and the length of the artificial dam 4 is related to the structure of the artificial dam 4 and the distance between the first groove 21 and the second groove 22. If the artificial dam 4 is in an arch structure, the length of the artificial dam 4 is equal to the arc length between the first groove 21 and the second groove 22; if the artificial dam 4 is in a planar upright structure, the length of the artificial dam 4 is equal to the maximum linear distance between the first groove 21 and the second groove 22.
Further, the clay layer 43, the red brick layer 42 and the concrete layer 41 of the artificial dam 4 have a length ratio of 10:3:5, a step of; the clay layer 43 has a length of 2 to 2.3m.
Specifically, considering that the stress conditions of different positions of the artificial dam body 4 in the reservoir water storage and release process are different, the lengths of the clay layer 43, the concrete layer 41 and the red brick layer 42 are sequentially reduced, and preferably, the length ratio of the clay layer 43, the red brick layer 42 and the concrete layer 41 is 10:3:5, the clay layer 43 preferably has a length of 2 to 2.3m. The waterproof gel 5 is smeared between the clay layer 43 and the red brick layer 42 and between the red brick layer 42 and the concrete layer 41, and after the waterproof gel 5 is smeared, maintenance is needed first, then the next layer is built, the tightness of connection before each layer of structure in the artificial dam body 4 is ensured, and the anti-seepage effect is improved. The artificial dam body 4 with the structure has larger impact strength and more stable dam body; especially for the artificial dam body 4 with the arch structure, the stress is more uniform, the probability that the artificial dam body 4 is damaged due to uneven stress is greatly reduced, the service life of the artificial dam body 4 is further prolonged, and the structural stability and safety of the underground reservoir are improved.
In addition, the thickness of the artificial dam body 4 can be adjusted according to the reservoir capacity of the reservoir, the geological conditions of the mine and the like, and if the designed reservoir capacity is large or the geological conditions are poor, the thickness of the artificial dam body 4 can be properly increased; if the designed reservoir capacity is small or the geological condition is good, the thickness of the artificial dam body 4 can be properly reduced.
In one embodiment, the underground reservoir can be built in mine tunnels besides goaf, and the reservoir built in the mine tunnels is formed by plugging two artificial dams 4 at two ends of the mine tunnels. Specifically, the reservoir capacity of the reservoir is designed according to the geological conditions of the mine tunnel, and the reservoir capacity V of a reservoir single reservoir is equal to the product of the reservoir body length L and the tunnel cross-section area S. The reservoir single reservoirs can be communicated to form a reservoir group, the reservoir single reservoirs are communicated through a pipeline provided with a gate, and the total reservoir capacity of the reservoir group is the sum of the reservoir capacities of the reservoir single reservoirs.
In addition, in order to promote the structural stability of reservoir, before building artificial dam body 4, consolidate mine tunnel country rock, because support through modes such as anchor bolt support, anchor rope support, shotcrete support in the tunnel tunneling process, the support intensity is higher, wholly need not to strengthen, consolidate to the lower position of support intensity, the storehouse body structure is more stable, can guarantee the structural stability of reservoir.
In the description of the present invention, it should be understood that the terms "upper," "lower," "bottom," "top," "front," "rear," "inner," "outer," "left," "right," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the different dependent claims and the features described herein may be combined in ways other than as described in the original claims. It is also to be understood that features described in connection with separate embodiments may be used in other described embodiments.
Claims (6)
1. The method for constructing the artificial dam body of the underground reservoir is characterized by comprising the following steps of:
Step one, respectively forming a first groove and a second groove on reserved coal pillars on two sides of a dam foundation of the artificial dam body, wherein the notches of the first groove and the second groove are opposite to each other;
Digging a foundation groove on the dam foundation along the direction from the first groove to the second groove, wherein two ends of the foundation groove extend to the bottoms of the first groove and the second groove respectively and are communicated with the first groove and the second groove;
Step three, uniformly laying quantitative water storage clay in the base groove, tamping, and smearing waterproof gel on the inner walls of the first groove and the second groove, the base groove and the top wall of the goaf above the base groove;
constructing the artificial dam body in the base groove along the direction from the first groove to the second groove, wherein the top of the artificial dam body is contacted with the top wall of the goaf;
The first groove and the second groove are arc-shaped corresponding to the base groove, and the artificial dam body is an arch dam;
in the fourth step, the artificial dam is constructed to include:
the concrete layers are positioned at two ends of the artificial dam body and are constructed in the first groove and the second groove;
the clay layer is positioned in the middle of the artificial dam body;
A red brick layer located between the clay layer and the concrete layer;
Wherein, waterproof gel is all smeared between the concrete layer and the red brick layer, between the red brick layer and the clay layer, and the length ratio of the clay layer, the red brick layer and the concrete layer of the artificial dam body is 10:3:5.
2. The method for constructing an artificial dam of an underground reservoir according to claim 1, wherein in the first step, further comprising:
And determining the construction areas of the underground reservoir and the artificial dam, wherein the construction areas meet the geological structure which is stable and has no fracture, fault and staggered layer.
3. The method for constructing an artificial dam of an underground reservoir according to claim 1, wherein in the third step, further comprising: and curing the waterproof gel.
4. The method for constructing an artificial dam of an underground reservoir according to claim 1, further comprising, in the fourth step: and coating waterproof gel on the surface of the water facing side of the artificial dam body.
5. An artificial dam of an underground reservoir, which is constructed by the construction method according to any one of claims 1 to 4.
6. The artificial dam of claim 5, wherein the clay layer of the artificial dam has a length of 2-2.3 m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110050190.8A CN114763695B (en) | 2021-01-14 | 2021-01-14 | Artificial dam body of underground reservoir and construction method thereof |
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| CN202110050190.8A CN114763695B (en) | 2021-01-14 | 2021-01-14 | Artificial dam body of underground reservoir and construction method thereof |
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| CN114763695B true CN114763695B (en) | 2024-04-26 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011058350A (en) * | 2009-09-11 | 2011-03-24 | Hwang-Eui Lee | Superstructure for increasing crown height of dam |
| CN103422469A (en) * | 2013-08-14 | 2013-12-04 | 中国神华能源股份有限公司 | Artificial retaining dam for coal mine underground reservoir and connecting method of artificial retaining dam and coal pillar dam bodies as well as surrounding rocks |
| CN110396982A (en) * | 2019-07-31 | 2019-11-01 | 中国神华能源股份有限公司 | A kind of artificial dam attachment structure and construction method |
| CN111549725A (en) * | 2020-05-29 | 2020-08-18 | 大连理工大学 | Waterproof horizontal water leakage structure for roller compacted concrete dam intermittent layer in severe cold area |
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- 2021-01-14 CN CN202110050190.8A patent/CN114763695B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011058350A (en) * | 2009-09-11 | 2011-03-24 | Hwang-Eui Lee | Superstructure for increasing crown height of dam |
| CN103422469A (en) * | 2013-08-14 | 2013-12-04 | 中国神华能源股份有限公司 | Artificial retaining dam for coal mine underground reservoir and connecting method of artificial retaining dam and coal pillar dam bodies as well as surrounding rocks |
| CN110396982A (en) * | 2019-07-31 | 2019-11-01 | 中国神华能源股份有限公司 | A kind of artificial dam attachment structure and construction method |
| CN111549725A (en) * | 2020-05-29 | 2020-08-18 | 大连理工大学 | Waterproof horizontal water leakage structure for roller compacted concrete dam intermittent layer in severe cold area |
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