CN107190713B - Karst funnel reservoir and flood discharge tunnel and excavation method thereof - Google Patents
Karst funnel reservoir and flood discharge tunnel and excavation method thereof Download PDFInfo
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- CN107190713B CN107190713B CN201710606577.0A CN201710606577A CN107190713B CN 107190713 B CN107190713 B CN 107190713B CN 201710606577 A CN201710606577 A CN 201710606577A CN 107190713 B CN107190713 B CN 107190713B
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- vertical shaft
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 115
- 239000011435 rock Substances 0.000 claims abstract description 23
- 239000002893 slag Substances 0.000 claims abstract description 11
- 239000002699 waste material Substances 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 5
- 239000002352 surface water Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
Abstract
The invention discloses a karst funnel reservoir flood discharge tunnel which comprises a vertical shaft section arranged in a peripheral rock body of a karst funnel, wherein a water inlet tunnel section is arranged between the upper end of the vertical shaft section and the side wall of the karst funnel, and a water outlet tunnel section is arranged between the lower end of the vertical shaft section and a natural drainage channel of the karst funnel. The invention also discloses a karst funnel reservoir and a construction method of the karst funnel reservoir flood discharge tunnel. According to the excavation method of the karst funnel reservoir flood discharge tunnel, the middle hole of the vertical shaft is constructed firstly in the vertical shaft excavation construction, then the vertical shaft is excavated in a full-section mode, waste slag excavated by the vertical shaft is conveyed out of the excavated water outlet tunnel, and the safety and the economical efficiency of the vertical excavation construction are improved.
Description
Technical Field
The invention belongs to the technical field of hydraulic engineering, and particularly relates to a karst funnel reservoir, a flood discharge tunnel thereof and an excavation method.
Background
The karst funnel reservoir is a novel reservoir and is characterized in that the connection between the karst funnel and a natural drainage channel at the bottom of the karst funnel is cut off through a reservoir bottom plugging structure, so that the karst funnel has the function of storing surface water and then stores the surface water into a reservoir. Because the karst funnel periphery usually has no surface water system to distribute, the flood discharge rivers of karst funnel reservoir can not directly discharge into peripheral surface water system, therefore, utilize the natural drainage channel flood discharge of karst funnel bottom to become suitable selection, sometimes even the only selection.
When the natural drainage channel who utilizes karst funnel bottom was as flood discharge rivers export, the flood discharge building of reservoir was arranged in the lateral wall rock mass of karst funnel usually, and this kind of flood discharge building belongs to the flood discharge tunnel, and how to excavate the flood discharge tunnel just becomes one of the key technical problem that the flood discharge building construction is waited to solve urgently.
Disclosure of Invention
In view of the above, the invention aims to provide a karst funnel reservoir, a flood discharge tunnel thereof and an excavation method, which can achieve the technical purpose of excavation of the flood discharge tunnel of the karst funnel reservoir.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention firstly provides a karst funnel reservoir flood discharge tunnel which comprises a vertical shaft positioned in rock bodies around a karst funnel, wherein a water inlet tunnel is arranged between the upper end of the vertical shaft and the side wall of the karst funnel, and a water outlet tunnel is arranged between the lower end of the vertical shaft and a natural drainage channel of the karst funnel.
Furthermore, the elevation of the bottom surface of the water outlet tunnel 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 reservoir bottom plugging structure 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 reservoir bottom plugging structure and the peripheral rock mass of the karst funnel positioned at the upper part of the reservoir bottom plugging structure; a water taking structure for taking water, an emptying structure for emptying the water storage area and the karst funnel reservoir flood discharge tunnel are arranged in the water storage area; the water inlet of the water inlet tunnel is positioned above the reservoir bottom blocking structure, and the elevation of the water inlet tunnel is lower than the normal water level elevation of the water storage area; the water outlet of the water outlet tunnel is positioned below the reservoir bottom plugging structure; 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 an excavation method of the karst funnel reservoir flood discharge tunnel, which comprises the following steps:
1) excavating a water inlet tunnel: excavating a water inlet tunnel according to the design size by adopting an excavation method of a conventional rock hydraulic tunnel, and reinforcing surrounding rock according to the actual condition;
2) excavating a water outlet tunnel: excavating a water tunnel according to the design size by adopting an excavation method of a conventional rock hydraulic tunnel, and reinforcing surrounding rock according to the actual condition;
3) excavating a vertical shaft mesopore: finding the position of a shaft to be excavated in the excavated water inlet tunnel, and drilling a hole downwards along the axis of the shaft to be excavated by adopting a drilling machine hole-forming method until the top surface of the excavated water outlet tunnel is penetrated;
4) excavating a vertical shaft: and (3) excavating the vertical shaft from top to bottom from the top of the position of the vertical shaft to be excavated until the vertical shaft is connected with the excavated water outlet tunnel and reaches the design requirement, and reinforcing the surrounding rock according to the actual condition.
Further, in the step 3), the diameter of the hole in the shaft is determined on the basis of tapping from the hole.
Further, in the step 4), the waste slag generated by the excavation of the vertical shaft is conveyed to the excavated water outlet tunnel through the middle hole of the excavated vertical shaft and then conveyed out.
The invention has the beneficial effects that:
according to the excavation method of the karst funnel reservoir flood discharge tunnel, the middle hole of the vertical shaft is constructed firstly in the vertical shaft excavation construction, then the vertical shaft is excavated in a full-section mode, waste slag excavated by the vertical shaft is conveyed out of the excavated water outlet tunnel, and the safety and the economical efficiency of the vertical excavation construction are improved.
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 three-dimensional construction schematic diagram of the excavation method of the karst funnel reservoir flood discharge tunnel;
FIG. 2 is a schematic structural diagram of the excavated structure in step 1);
FIG. 3 is a schematic structural diagram of the excavated structure in step 2);
FIG. 4 is a schematic structural diagram of the excavated structure in step 3);
FIG. 5 is a schematic structural diagram of the excavated structure in step 4);
fig. 6 is a flowchart of the excavation method of the karst funnel reservoir flood discharge tunnel according to the embodiment.
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.
As shown in fig. 1, the karst funnel reservoir aimed by the excavation method of the flood discharge tunnel of the karst funnel reservoir of the embodiment includes a bottom plugging structure for plugging a natural drainage channel of the karst funnel, and a water storage area for storing water and performing anti-leakage treatment is formed between the bottom plugging structure and peripheral rock masses of the karst funnel positioned at the upper part of the bottom plugging structure; and a water taking structure for taking water, an emptying structure for emptying the water storage area and a karst funnel reservoir flood discharge tunnel for discharging flood are arranged in the water storage area. The karst funnel reservoir flood discharge tunnel of this embodiment, including the shaft that is located the peripheral rock mass of karst funnel, be equipped with into water tunnel between the upper end of shaft and the karst funnel lateral wall, be equipped with out water tunnel between the lower extreme of shaft and the natural drainage channel of karst funnel. And the elevation of the bottom surface of the water outlet tunnel is not lower than that of the natural drainage channel of the karst funnel.
The water inlet of the water inlet tunnel is positioned above the reservoir bottom blocking structure, and the elevation of the water inlet tunnel is lower than the normal water level elevation of the water storage area; the water outlet of the water outlet tunnel is positioned below the reservoir bottom plugging structure; 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 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. 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.
Specifically, the excavation method of the karst funnel reservoir flood discharge tunnel of the embodiment comprises the following steps:
1) excavating a water inlet tunnel: excavating a water inlet tunnel according to the design size by adopting an excavation method of a conventional rock hydraulic tunnel, and reinforcing surrounding rock according to the actual condition;
2) excavating a water outlet tunnel: excavating a water tunnel according to the design size by adopting an excavation method of a conventional rock hydraulic tunnel, and reinforcing surrounding rock according to the actual condition;
3) excavating a vertical shaft mesopore: finding the position of a shaft to be excavated in the excavated water inlet tunnel, and drilling a hole downwards along the axis of the shaft to be excavated by adopting a drilling machine hole-forming method until the top surface of the excavated water outlet tunnel is penetrated; the diameter of the hole in the vertical shaft is determined on the basis of facilitating slag tapping from the hole;
4) excavating a vertical shaft: excavating the vertical shaft from top to bottom from the top of the position of the vertical shaft to be excavated until the vertical shaft is connected with the excavated water outlet tunnel and reaches the design requirement, and reinforcing the surrounding rock according to the actual condition; and conveying the waste slag generated by the vertical shaft excavation to the excavated water outlet tunnel through the middle hole of the vertical shaft excavation and then conveying the waste slag out.
In addition, the natural drainage channel at the bottom of the karst funnel cannot be blocked by construction temporary measures or abandoned slag and the like in the excavation construction of the flood discharge tunnel.
According to the excavation method of the karst funnel reservoir flood discharge tunnel, the middle hole of the vertical shaft is constructed firstly in the vertical shaft excavation construction, then the vertical shaft is excavated in a full-section mode, waste slag excavated by the vertical shaft is conveyed out of the excavated water outlet tunnel, and safety and economy of vertical excavation construction are improved.
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 (6)
1. The utility model provides a karst funnel reservoir which characterized in that: the device comprises a bottom plugging structure 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 bottom plugging structure and peripheral rock masses of the karst funnel positioned at the upper part of the bottom plugging structure; a water taking structure for taking water, an emptying structure for emptying the water storage area and a flood discharge tunnel are arranged in the water storage area; the water inlet of the water inlet tunnel is positioned above the reservoir bottom blocking structure, and the elevation of the water inlet tunnel is lower than the normal water level elevation of the water storage area; the water outlet of the water outlet tunnel is positioned below the reservoir bottom plugging structure; 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;
flood discharge tunnel, including the shaft that is located the peripheral rock mass of karst funnel, be equipped with into water tunnel between the upper end of shaft and the karst funnel lateral wall, be equipped with out water tunnel between the lower extreme of shaft and the natural drainage channel of karst funnel, the delivery port bottom surface elevation of out water tunnel is not less than the elevation of the natural drainage channel of karst funnel.
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 excavating a flood discharge tunnel of a karst funnel reservoir as defined in claim 1, wherein: the method comprises the following steps:
1) excavating a water inlet tunnel: excavating a water inlet tunnel according to the design size by adopting an excavation method of a conventional rock hydraulic tunnel, and reinforcing surrounding rock according to the actual condition;
2) excavating a water outlet tunnel: excavating a water tunnel according to the design size by adopting an excavation method of a conventional rock hydraulic tunnel, and reinforcing surrounding rock according to the actual condition;
3) excavating a vertical shaft mesopore: finding the position of a shaft to be excavated in the excavated water inlet tunnel, and drilling a hole downwards along the axis of the shaft to be excavated by adopting a drilling machine hole-forming method until the top surface of the excavated water outlet tunnel is penetrated;
4) excavating a vertical shaft: and (3) excavating the vertical shaft from top to bottom from the top of the position of the vertical shaft to be excavated until the vertical shaft is connected with the excavated water outlet tunnel and reaches the design requirement, and reinforcing the surrounding rock according to the actual condition.
5. The excavation method of the flood discharge tunnel of the karst funnel reservoir according to claim 4, wherein: in step 3), the diameter of the hole in the vertical shaft is determined on the basis of facilitating slag tapping from the hole.
6. The excavation method of the flood discharge tunnel of the karst funnel reservoir according to claim 5, wherein: and 4), delivering the waste slag generated by the excavation vertical shaft to the excavated water-outlet tunnel through the middle hole of the excavation vertical shaft, and then delivering the waste slag out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710606577.0A CN107190713B (en) | 2017-07-24 | 2017-07-24 | Karst funnel reservoir and flood discharge tunnel and excavation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710606577.0A CN107190713B (en) | 2017-07-24 | 2017-07-24 | Karst funnel reservoir and flood discharge tunnel and excavation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107190713A CN107190713A (en) | 2017-09-22 |
| CN107190713B true CN107190713B (en) | 2020-02-14 |
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| CN201710606577.0A Active CN107190713B (en) | 2017-07-24 | 2017-07-24 | Karst funnel reservoir and flood discharge tunnel and excavation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108755622B (en) * | 2018-07-25 | 2023-05-09 | 中国水利水电第十四工程局有限公司 | Excavation method of large-diameter cylindrical tail water pressure regulating chamber |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110012A (en) * | 2014-07-28 | 2014-10-22 | 中国电建集团西北勘测设计研究院有限公司 | Low-permeability rock-fill material concrete panel rock-fill dam |
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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 |
|---|---|---|---|---|
| CN104110012A (en) * | 2014-07-28 | 2014-10-22 | 中国电建集团西北勘测设计研究院有限公司 | Low-permeability rock-fill material concrete panel rock-fill dam |
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;吴明洋;《中国优秀硕士学位论文全文数据库（电子期刊）》;中国学术期刊电;20160630;第1页第1.1节至26页第3.5节 * |
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| CN107190713A (en) | 2017-09-22 |
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Effective date of registration: 20230310 Address after: Room C7-101, Type C R&D and Production Plant, Saville International Enterprise Town, No. 1388, Jingkai Avenue, Nanchang Economic and Technological Development Zone, Nanchang City, Jiangxi Province, 330052 Patentee after: Zhongchang Tiangong Survey Group Co.,Ltd. Address before: 400074 Chongqing Jiaotong University, 66 Avenue, Nan'an District, Chongqing Patentee before: CHONGQING JIAOTONG University |
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