CN107268547B - Karst funnel reservoir and flood discharge building and construction method thereof - Google Patents
Karst funnel reservoir and flood discharge building and construction method thereof Download PDFInfo
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- CN107268547B CN107268547B CN201710608039.5A CN201710608039A CN107268547B CN 107268547 B CN107268547 B CN 107268547B CN 201710608039 A CN201710608039 A CN 201710608039A CN 107268547 B CN107268547 B CN 107268547B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The invention discloses a flood discharge building which comprises a shaft section arranged in a peripheral rock body of a karst funnel and a water diversion section arranged on the inner wall of the peripheral rock body of the karst funnel, wherein a non-pressure flood discharge tunnel section is arranged between the upper end of the shaft section and the water diversion section, a pressure flood discharge tunnel section is arranged between the lower end of the shaft section and a natural drainage channel of the karst funnel, and a gate is arranged between the water diversion section and the non-pressure flood discharge tunnel section. The invention also discloses a karst funnel reservoir, a flood discharge building and a construction method. The flood discharge building has the following two advantages: 1) the natural drainage channel at the bottom of the karst funnel is fully utilized to discharge flood water, so that the engineering scale of a flood discharge building is small, and the economy is good; 2) the water release structure is completely positioned in the side wall rock body of the karst funnel, so that the water release structure is not interfered with other buildings of the karst funnel reservoir, and the safety is good.
Description
Technical Field
The invention belongs to the technical field of hydraulic engineering, and particularly relates to a karst funnel reservoir, a flood discharge building and a construction method thereof.
Background
The karst landform distribution of China is wide, the area is large, the karst landform distribution is mainly distributed in the exposed area of carbonate rock, and the area is about 91-130 ten thousand square kilometers. The areas occupied by Guangxi, Guizhou and the eastern part of Yunnan are the largest, and the method is one of the largest karst landforms in the world. The main karst landform areas in China are also areas with abundant atmospheric precipitation, but due to poor water storage conditions on the earth surface, most of precipitation intensively enters an underground karst system through a karst funnel and the like, so that the surface water resources of the karst landform areas are not abundant, and many areas even have prominent seasonal water shortage problems, thereby seriously affecting the local economic and social development.
With the social development and the technical economic progress of China, reservoirs need to be built in karst regions to solve the problem of seasonal water shortage locally. The large karst funnel has good water collection conditions on the terrain, the water quality is good, and if the natural drainage channel of the karst funnel is scientifically plugged, a karst funnel reservoir can be formed. As a reservoir, flood discharge buildings are an essential component. The karst funnel reservoir is a novel reservoir, and how to design a flood discharge building also becomes one of the key technical problems to be solved urgently.
Disclosure of Invention
In view of the above, the invention aims to provide a karst funnel reservoir, a flood discharge building and a construction method thereof, which can meet the requirement of reservoir flood discharge.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention firstly provides a flood discharge building which comprises a shaft section arranged in a peripheral rock body of a karst funnel and a water diversion section arranged on the inner wall of the peripheral rock body of the karst funnel, wherein a non-pressure flood discharge tunnel section is arranged between the upper end of the shaft section and the water diversion section, a pressure flood discharge tunnel section is arranged between the lower end of the shaft section and a natural drainage channel of the karst funnel, and a gate is arranged between the water diversion section and the non-pressure flood discharge tunnel section.
Furthermore, the cross section of the water diversion section is in a shape of a straight-wall semicircular arch or a circle, and the gate is an arc gate matched with the water diversion section; the cross section of the non-pressure flood discharge tunnel section is the same as that of the water outlet of the water diversion section.
Further, the top surface elevation of the water inlet of the non-pressure flood discharge tunnel section is not higher than the top surface elevation of the water outlet of the water diversion section.
Furthermore, the shaft section is in arc transition with the non-pressure flood discharge tunnel section and the pressure flood discharge tunnel section respectively.
Furthermore, the elevation of the bottom surface of the water outlet of the pressure flood discharge tunnel section is not lower than that of the natural drainage channel of the karst funnel.
The invention also provides a karst funnel reservoir which comprises a plugging building for plugging the natural drainage channel of the karst funnel, wherein a water storage area for storing water and performing anti-leakage treatment is formed between the plugging building and the peripheral rock mass of the karst funnel positioned at the upper part of the plugging building; a water taking structure for taking water, an emptying structure for emptying the water storage area and the flood discharge structure are arranged in the water storage area; the water inlet of the water diversion section is positioned above the plugging building, and the elevation of the water inlet of the water diversion section is lower than the normal water level of the water storage area; the water outlet of the pressure flood discharge tunnel section is positioned below the plugging building;
the emptying building is arranged at the bottom of the water storage area, and the water taking building is arranged in the middle of the water storage area.
Furthermore, the elevation of the bottom surface of the water inlet of the emptying building is equal to or slightly lower than the elevation of the dead water level of the water storage area.
Furthermore, a water delivery pipeline is connected to the water taking building, and the water taking opening elevation of the water taking building is located between the dead water level elevation and the normal water level elevation of the water storage area.
The invention also provides a construction method of the flood discharge building, which comprises the following steps:
1) excavating rock mass: excavating a water diversion section, a non-pressure flood discharge tunnel section, a vertical shaft section and a pressure flood discharge tunnel section in the peripheral rock mass of the karst funnel, and reinforcing surrounding rocks;
2) and (3) structural construction: and constructing a water diversion section, a gate and an opening and closing facility thereof, a non-pressure flood discharge tunnel section, a vertical shaft section and a pressure flood discharge tunnel section structure in the excavated cavern to form the flood discharge building.
Further, in the step 1), the waste slag generated by excavation cannot be piled up and filled at the bottom of the karst funnel; the natural drainage channel at the bottom of the karst funnel cannot be blocked in rock excavation construction.
The invention has the beneficial effects that:
the flood discharge building has the following two advantages:
1) the natural drainage channel at the bottom of the karst funnel is fully utilized to discharge flood water, so that the engineering scale of a flood discharge building is small, and the economy is good;
2) the water release structure is completely positioned in the side wall rock body of the karst funnel, so that the water release structure is not interfered with other buildings of the karst funnel reservoir, and the safety is good.
Drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
fig. 1 is a schematic structural view of an embodiment of the karst funnel reservoir of the present invention, specifically, a water intake building and an emptying building are omitted;
FIG. 2 is a cross-sectional view of FIG. 1;
fig. 3 is a schematic structural view of a flood discharge building.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
Fig. 1 is a schematic structural diagram of an embodiment of the karst funnel reservoir of the present invention. The karst funnel reservoir of this embodiment, including the shutoff building 2 that is used for shutoff karst funnel natural drainage channel, form between shutoff building 2 and the peripheral rock mass 1 of the karst funnel that is located its upper portion and be used for the water storage and through the water storage district 3 that prevents the seepage and handle. A water taking building for taking water, an emptying building for emptying the water storage area and a flood discharging building 4 for discharging flood are arranged in the water storage area 3. The flood discharge building of this embodiment, including setting up shaft section 5 in karst funnel's peripheral rock mass 1 and setting up diversion section 6 on karst funnel's peripheral rock mass 1 inner wall, be equipped with non-pressure flood discharge tunnel section 7 between shaft section 5's upper end and diversion section 6, be equipped with between shaft section 5's the lower extreme and karst funnel's natural drainage channel 10 and press flood discharge tunnel section 8, be equipped with gate 9 between diversion section 6 and the non-pressure flood discharge tunnel section 7. The water inlet of the water diversion section 6 of this embodiment is located above the plugging building 2, and the water inlet elevation of the water diversion section 6 is lower than the normal water level of the water storage area 3. The water outlet of the pressure flood discharge tunnel section 8 is positioned below the plugging building 2.
The emptying building is arranged at the bottom of the water storage area 3, and the water taking building is arranged in the middle of the water storage area 3. The elevation of the bottom surface of the water inlet of the emptying building is equal to or slightly lower than the elevation of the dead water level of the water storage area 3. The water taking structure is connected with a water delivery pipeline, and the elevation of a water taking opening of the water taking structure is positioned between the dead water level elevation and the normal water level elevation of the water storage area 3.
In the karst funnel reservoir of the embodiment, the natural drainage channel of the karst funnel is plugged by the plugging building, and a water storage area for storing water and performing anti-leakage treatment is formed between the plugging building and the peripheral rock mass of the karst funnel positioned at the upper part of the plugging building, so that the karst funnel has the condition of storing surface water to form the reservoir; the emptying building can empty the reservoir so as to overhaul various buildings in the reservoir area; the flood discharge building can drain the redundant incoming water in time so as to ensure the safe operation of the reservoir; the water taking building can be connected with a water conveying pipeline, and water is taken for production and life; in addition, because the pollution sources around the karst funnel are limited and the problem of water and soil loss is not serious, the problem of sediment accumulation of the karst funnel reservoir is not obvious, and the reservoir water quality is better.
Furthermore, the cross section of the water diversion section 6 is a straight wall semicircular arch or a circle, and the gate 9 is an arc gate matched with the water diversion section 6, so that the flood diversion section can be smoothly opened during flood discharge. The cross section of the non-pressure flood discharge tunnel section 7 is the same as that of the water outlet of the water diversion section 6. The cross section of the water diversion section 6 of the embodiment is in the shape of a straight wall and a semicircular arch. Preferably, the top surface elevation of the water inlet of the pressureless flood discharge tunnel section 7 is not higher than the top surface elevation of the water diversion section water outlet, and the top surface elevation of the water inlet of the pressureless flood discharge tunnel section 7 of the embodiment is lower than the top surface elevation of the water diversion section water outlet.
Furthermore, the shaft section 5 is in arc transition with the non-pressure flood discharge tunnel section 7 and the pressure flood discharge tunnel section 8 respectively, so that water flow is smooth. The elevation of the bottom surface of the water outlet of the pressure flood discharge tunnel section 8 is not lower than that of the natural drainage channel 10 of the karst funnel, so that the water of the flood discharge building can be completely drained away.
The flood discharge building of the embodiment has the following two advantages: 1) the natural drainage channel at the bottom of the karst funnel is fully utilized to discharge flood water, so that the engineering scale of a flood discharge building is small, and the economy is good; 2) the water release structure is completely positioned in the side wall rock body of the karst funnel, so that the water release structure is not interfered with other buildings of the karst funnel reservoir, and the safety is good.
The embodiment also provides a flood discharge building construction method, which comprises the following steps:
1) excavating rock mass: excavating a water diversion section, a non-pressure flood discharge tunnel section, a vertical shaft section and a pressure flood discharge tunnel section in the peripheral rock mass of the karst funnel, and reinforcing surrounding rocks; waste slag generated by excavation cannot be piled up and filled at the bottom of the karst funnel; the natural drainage channel at the bottom of the karst funnel cannot be blocked in rock mass excavation construction;
2) and (3) structural construction: and constructing a water diversion section, a gate and an opening and closing facility thereof, a non-pressure flood discharge tunnel section, a vertical shaft section and a pressure flood discharge tunnel section structure in the excavated cavern to form a flood discharge building.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (5)
1. The utility model provides a karst funnel reservoir which characterized in that: the device comprises a plugging building for plugging a natural drainage channel of a karst funnel, wherein a water storage area for storing water and performing anti-leakage treatment is formed between the plugging building and peripheral rock masses of the karst funnel positioned at the upper part of the plugging building; a water taking building for taking water, an emptying building for emptying the water storage area and a flood discharging building are arranged in the water storage area;
the emptying building is arranged at the bottom of the water storage area, and the water taking building is arranged in the middle of the water storage area;
the flood discharge building comprises a vertical shaft section arranged in rock bodies around the karst funnel and a water diversion section arranged on the inner wall of the rock bodies around the karst funnel, wherein a water inlet of the water diversion section is positioned above the plugging building, and the elevation of the water inlet of the water diversion section is lower than the elevation of a normal water level of the water storage area; the water outlet of the pressure flood discharge tunnel section is positioned below the plugging building; a non-pressure flood discharge tunnel section is arranged between the upper end of the vertical shaft section and the water diversion section, a pressure flood discharge tunnel section is arranged between the lower end of the vertical shaft section and a natural drainage channel of the karst funnel, a gate is arranged between the water diversion section and the non-pressure flood discharge tunnel section, and the elevation of the bottom surface of a water outlet of the pressure flood discharge tunnel section is not lower than that of the natural drainage channel of the karst funnel;
the cross section of the water diversion section is a straight wall semicircular arch or a circle, and the gate is an arc gate matched with the water diversion section; the cross section of the non-pressure flood discharge tunnel section is the same as that of the water outlet of the water diversion section;
the top surface elevation of the water inlet of the non-pressure flood discharge tunnel section is not higher than that of the water outlet of the water diversion section;
and the vertical shaft section is in arc transition with the non-pressure flood discharge tunnel section and the pressure flood discharge tunnel section respectively.
2. The karst funnel reservoir of claim 1, wherein: the elevation of the bottom surface of the water inlet of the emptying building is equal to or slightly lower than the elevation of the dead water level of the water storage area.
3. The karst funnel reservoir of claim 1, wherein: the water taking structure is connected with a water delivery pipeline, and the water taking opening elevation of the water taking structure is positioned between the dead water level elevation and the normal water level elevation of the water storage area.
4. A method of constructing a flood discharge building for a karst funnel reservoir as claimed in claim 1, wherein: the method comprises the following steps:
1) excavating rock mass: excavating a water diversion section, a non-pressure flood discharge tunnel section, a vertical shaft section and a pressure flood discharge tunnel section in the peripheral rock mass of the karst funnel, and reinforcing surrounding rocks;
2) and (3) structural construction: and constructing a water diversion section, a gate and an opening and closing facility thereof, a non-pressure flood discharge tunnel section, a vertical shaft section and a pressure flood discharge tunnel section structure in the excavated cavern to form the flood discharge building.
5. The construction method of a flood discharge building of a karst funnel reservoir according to claim 4, characterized in that: in the step 1), waste slag generated by excavation cannot be piled up at the bottom of a karst funnel; the natural drainage channel at the bottom of the karst funnel cannot be blocked in rock excavation construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710608039.5A CN107268547B (en) | 2017-07-24 | 2017-07-24 | Karst funnel reservoir and flood discharge building and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710608039.5A CN107268547B (en) | 2017-07-24 | 2017-07-24 | Karst funnel reservoir and flood discharge building and construction method thereof |
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| Publication Number | Publication Date |
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| CN107268547A CN107268547A (en) | 2017-10-20 |
| CN107268547B true CN107268547B (en) | 2020-02-14 |
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| CN201710608039.5A Active CN107268547B (en) | 2017-07-24 | 2017-07-24 | Karst funnel reservoir and flood discharge building and construction method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111424685A (en) * | 2020-04-14 | 2020-07-17 | 中国电建集团贵阳勘测设计研究院有限公司 | Deep water falling hole processing structure and method for backfilling foundation in large karst depression |
| CN113957908A (en) * | 2021-11-29 | 2022-01-21 | 中水北方勘测设计研究有限责任公司 | Method for treating water falling tunnel for building small and medium-sized reservoir in karst depression area |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203977378U (en) * | 2014-07-31 | 2014-12-03 | 中国电建集团中南勘测设计研究院有限公司 | A kind of shaft spillway |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8690485B2 (en) * | 2011-10-18 | 2014-04-08 | Eric W. Smith | Rock bolt sealing system |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203977378U (en) * | 2014-07-31 | 2014-12-03 | 中国电建集团中南勘测设计研究院有限公司 | A kind of shaft spillway |
Non-Patent Citations (1)
| Title |
|---|
| "刘家沟面板堆石坝坝体设计与运行期应力变形研究";吴明洋;《中国优秀硕士学位论文全文数据库（电子期刊）》;20160630;第1页第1.1节至26页第3.5节 * |
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