CN220365596U - Goaf supporting structure for pit extraction and storage - Google Patents
Goaf supporting structure for pit extraction and storage Download PDFInfo
- Publication number
- CN220365596U CN220365596U CN202321959037.8U CN202321959037U CN220365596U CN 220365596 U CN220365596 U CN 220365596U CN 202321959037 U CN202321959037 U CN 202321959037U CN 220365596 U CN220365596 U CN 220365596U
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- reinforced concrete
- goaf
- steel plate
- base
- storage
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- 238000003860 storage Methods 0.000 title claims abstract description 18
- 238000000605 extraction Methods 0.000 title claims description 10
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 74
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 238000010276 construction Methods 0.000 claims description 9
- 239000011440 grout Substances 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000004540 pour-on Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a goaf supporting structure for pit drawing and storage, which comprises a reinforced concrete base, wherein the reinforced concrete base is fixedly connected with a reinforced concrete top plate through a reinforced concrete column, a plurality of reinforced concrete top plates are arranged next to each other, a plurality of backfill grouting holes are formed in the reinforced concrete top plate, and backfill grouting is poured on the reinforced concrete top plate. According to the utility model, the plurality of reinforced concrete top plates are arranged next to each other, the reinforced concrete top plates are fixedly connected with the reinforced concrete base through the reinforced concrete columns, and the reinforced concrete base is fixed on the ground, so that a closed space is formed at the top of the goaf, and meanwhile, the reinforced concrete top plates are fixedly connected with the top of the goaf through backfill grouting to form a whole, so that good support of the top of the goaf is realized through the structure. The reinforced concrete base is fixedly connected with the goaf steel plate through the lacing wires, and the goaf steel plate is fixed on the ground of the goaf through the anchor rod, so that the stability of the whole supporting structure is guaranteed.
Description
Technical Field
The utility model relates to a supporting structure, in particular to a goaf supporting structure for pit extraction and storage.
Background
With the proposal of the 'double carbon' target, new energy sources such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy, nuclear fusion energy and the like are rapidly developed. In order to ensure the safety and stability of the power grid under a large proportion of new energy sources and the consumption of the new energy sources, pumped storage is used as an energy storage mode with the most mature technology, optimal economy and the most large-scale development condition, is a green low-carbon clean flexible regulation power supply of the power system, and is widely focused at present.
In the pumped storage power station project, an upper reservoir and a lower reservoir are used as one of main buildings of engineering, and the selection of the upper reservoir and the lower reservoir is crucial. The abandoned mine is used as a reservoir of the pumped storage power station, and has obvious advantages in the aspects of saving engineering investment and reducing water evaporation. However, when the abandoned underground mine is used as a reservoir of a pumped storage power station, the tightness and stability of the underground space must be effectively ensured. The goaf is taken as an important space for water storage, the top of the goaf needs to be well supported, and if a traditional cast-in-place process is adopted, a great deal of time is spent in supporting engineering.
Disclosure of Invention
The utility model aims to provide a goaf supporting structure for pit extraction and storage. The supporting structure can provide good supporting for the top of the goaf, and the supporting structure is convenient to construct.
The technical scheme of the utility model is as follows: the utility model provides a mine pit takes out and holds goaf supporting construction, including a plurality of reinforced concrete bases of fixing subaerial at the goaf, reinforced concrete base is through reinforced concrete column and reinforced concrete roof fixed connection, and polylith reinforced concrete roof is closely set up, is provided with a plurality of backfill grout holes on the reinforced concrete roof, has pour the backfill grout on the reinforced concrete roof, and reinforced concrete column, reinforced concrete roof and reinforced concrete base integral casting shaping are prefabricated component.
In the goaf supporting structure for pit extraction and storage, the goaf steel plate is fixedly paved on the ground of the goaf, and the reinforced concrete base is fixed on the goaf steel plate.
In the goaf supporting structure for pit extraction and storage, the goaf steel plate is fixed on the goaf ground through the anchor rod.
In the goaf supporting structure for pit drawing and storage, the bottom surface of the reinforced concrete base is provided with the prefabricated steel plate, the prefabricated steel plate is connected with the inside of the base through the lacing wires, and the prefabricated steel plate is welded and fixed on the goaf steel plate.
The utility model has the beneficial effects that: compared with the prior art, the utility model has the advantages that the reinforced concrete top plates are closely arranged, the reinforced concrete top plates are fixedly connected with the reinforced concrete base through the reinforced concrete columns, the reinforced concrete base is fixed on the ground, so that a closed space is formed at the top of the goaf, and meanwhile, the reinforced concrete top plates are fixedly connected with the top of the goaf through backfill grouting to form a whole, so that good support on the top of the goaf is realized through the structure. The reinforced concrete base is fixedly connected with the goaf steel plate, and the goaf steel plate is fixed on the ground of the goaf through the anchor rod, so that the stability of the whole supporting structure is guaranteed. Compared with the traditional cast-in-place structure, the support structure is more convenient to construct and takes less time.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a plan view of goaf support plane structure;
FIG. 3 is a schematic structural view of a prefabricated part;
FIG. 4 is a schematic top view of a reinforced concrete roof;
fig. 5 is a plan view of a pit extraction and storage reservoir basin.
Reference numerals: a-ore transportation main shaft, B-mining transportation tunnel, C-goaf (main water storage area), 1-reinforced concrete column, 2-reinforced concrete top plate, 3-reinforced concrete base, 4-backfill grouting hole, 5-goaf ground, 6-backfill grouting and 7-goaf steel plate.
Detailed Description
The utility model is further illustrated by the following figures and examples, which are not intended to be limiting.
Embodiments of the utility model: the utility model provides a mine pit is taken out and is held goaf supporting construction, as shown in fig. 1-5, including a plurality of reinforced concrete bases 3 of fixing on goaf ground 5, reinforced concrete base 3 is through reinforced concrete column 1 and reinforced concrete roof 2 fixed connection, and polylith reinforced concrete roof 2 is closely set up, is provided with a plurality of backfill grout holes 4 on the reinforced concrete roof 2, has pour backfill grout 6 on the reinforced concrete roof 2. The reinforced concrete column 1, the reinforced concrete top plate 2 and the reinforced concrete base 3 are integrally cast and formed and are prefabricated components. The prefabricated part is directly transported to the goaf for installation in the supporting process, and the construction is more convenient.
The constitution of the prefabricated part is as follows: a reinforced concrete column 1, a reinforced concrete top plate 2 and a reinforced concrete base 3, as shown in fig. 3. Reinforced concrete column 1, reinforced concrete roof 2 and reinforced concrete base 3 all adopt reinforced concrete as the material. The reinforced concrete column 1, the reinforced concrete top plate 2 and the reinforced concrete base 3 are poured together and are connected with concrete by using steel bars. The length and width of the reinforced concrete roof 2 can be comprehensively determined according to the size of the mine track and the size of the transportation roadway, and the transportation from the ground surface to the goaf by using the transportation track is convenient. The reinforced concrete roof 2 is reserved with backfill grouting holes 4, so that the backfill grouting holes 4 can be directly used for grouting after the installation is completed, and the distribution shape and the spacing of the backfill grouting holes 4 can be adjusted according to actual engineering requirements.
The goaf steel plate 7 is fixedly paved on the goaf ground 5, the reinforced concrete base 3 is fixed on the goaf steel plate 7, and the goaf steel plate 7 is arranged to provide support stability.
The goaf steel plate 7 is fixed on the goaf ground 5 through the anchor rod, and the goaf steel plate 7 is locked and fixed through the structure, so that the stability of a supporting structure above the goaf steel plate is guaranteed.
The reinforced concrete base 3 bottom surface is provided with prefabricated steel sheet, and prefabricated steel sheet passes through the lacing wire and links to each other with the inside concrete of base, realizes prefabricated steel sheet and the zonulae occludens of concrete, and prefabricated steel sheet welded fastening is on goaf steel sheet 7 for both zonulae occludens are in the same place, have guaranteed supporting construction's stability.
The mounting method of the support structure comprises the following steps: the prefabricated members are firstly conveyed to the goaf through mine tracks, goaf steel plates 7 are firstly installed on the ground of the goaf according to preset intervals and distribution modes, after the prefabricated members are conveyed to specific positions and erected on the goaf steel plates 7, the prefabricated steel plates of the reinforced concrete base 3 of the prefabricated members and the goaf steel plates 7 are welded, and a plurality of prefabricated members are mutually adjacent after installation, as shown in figure 2. Finally, grouting is carried out through the reserved backfill grouting holes 4, so that the top of the goaf is effectively supported, as shown in the figure 1.
In the construction process, the rapid support of the mine pit goaf is realized by combining the track of the mine pit roadway and the prefabrication technology. But also has the following effects:
1) Compared with in-situ casting, the prefabricated part can be produced in batch, and the construction period of the support engineering is effectively shortened.
2) The prefabricated members are transported by utilizing the original transportation track of the pit, so that the construction progress can be quickened, and the engineering investment can be saved.
3) The prefabricated steel plate is arranged at the bottom of the prefabricated component, and the prefabricated component can be connected with the goaf steel plate 7 arranged on the goaf ground by welding, so that the rapid positioning and the installation of the component are realized.
4) The top of the prefabricated part is prefabricated and backfilled with the grouting holes 4, and grouting can be performed immediately after installation is completed, so that the construction efficiency is improved.
Claims (4)
1. The utility model provides a goaf supporting construction that pit was taken out and is held which characterized in that: including a plurality of reinforced concrete bases (3) of fixing on goaf ground (5), reinforced concrete base (3) are through reinforced concrete column (1) and reinforced concrete roof (2) fixed connection, and polylith reinforced concrete roof (2) are closely set up, are provided with a plurality of backfill grout holes (4) on reinforced concrete roof (2), have pour on reinforced concrete roof (2) and have backfilled grout (6), and reinforced concrete column (1), reinforced concrete roof (2) and reinforced concrete base (3) are cast shaping as prefabricated component in one piece.
2. The goaf support structure for pit extraction and storage of claim 1, wherein: goaf steel plates (7) are fixedly paved on the goaf ground (5), and the reinforced concrete base (3) is fixed on the goaf steel plates (7).
3. The goaf support structure for pit extraction and storage of claim 2, wherein: the goaf steel plate (7) is fixed on the goaf ground (5) through an anchor rod.
4. The goaf support structure for pit extraction and storage of claim 2, wherein: the reinforced concrete base (3) bottom surface is provided with prefabricated steel plate, and prefabricated steel plate passes through the lacing wire and links to each other with the base is inside, and prefabricated steel plate welded fastening is on goaf steel sheet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321959037.8U CN220365596U (en) | 2023-07-25 | 2023-07-25 | Goaf supporting structure for pit extraction and storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321959037.8U CN220365596U (en) | 2023-07-25 | 2023-07-25 | Goaf supporting structure for pit extraction and storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220365596U true CN220365596U (en) | 2024-01-19 |
Family
ID=89518187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321959037.8U Active CN220365596U (en) | 2023-07-25 | 2023-07-25 | Goaf supporting structure for pit extraction and storage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220365596U (en) |
-
2023
- 2023-07-25 CN CN202321959037.8U patent/CN220365596U/en active Active
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