CN117758693B - Pressure regulating chamber structure suitable for high earthquake area topography geological conditions are not enough - Google Patents
Pressure regulating chamber structure suitable for high earthquake area topography geological conditions are not enough Download PDFInfo
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- CN117758693B CN117758693B CN202410151366.2A CN202410151366A CN117758693B CN 117758693 B CN117758693 B CN 117758693B CN 202410151366 A CN202410151366 A CN 202410151366A CN 117758693 B CN117758693 B CN 117758693B
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 31
- 238000012876 topography Methods 0.000 title claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 239000011435 rock Substances 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000004567 concrete Substances 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000002689 soil Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000002950 deficient Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 239000002775 capsule Substances 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229920005570 flexible polymer Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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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
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Abstract
The invention provides a pressure regulating chamber structure suitable for high earthquake region topography and geological conditions, which comprises a ground structure, a vertical shaft, an impedance hole section and a pressure pipeline; the ground structure is arranged above the ground; the vertical shaft is arranged below the ground structure; the impedance hole section is arranged below the vertical shaft; the pressure pipeline is arranged below the impedance hole section; the ground structure, the vertical shaft, the impedance hole section and the pressure pipeline are connected in a penetrating manner from top to bottom. The pressure regulating chamber structure suitable for the high earthquake region with insufficient topographic and geological conditions has the advantages of high safety and high overall stability, and can not influence the stability of the side slope, so that the operating requirement of the pressure regulating chamber structure when the high earthquake region with insufficient topographic and geological conditions is met.
Description
Technical Field
The invention belongs to the technical field of pressure regulating chamber structures of hydraulic and hydroelectric engineering, and particularly relates to a pressure regulating chamber structure suitable for high earthquake areas with insufficient topographic and geological conditions.
Background
The common arrangement forms of the hydropower engineering surge chamber are buried type and open type, and the hydropower engineering surge chamber is suitable for low earthquake areas, proper terrain heights and good geological conditions. When the terrain is not enough, a buried or open type pressure regulating chamber cannot be formed, and the pressure regulating chamber structure needs to extend upwards continuously and form a high-rise cylindrical ground structure above the ground. When geological conditions are poor, especially in high earthquake areas, the problems of overall stability of ground structures, slope stability caused by leakage of pressure regulating chamber structures and the like are mainly solved by the existing pressure regulating chamber structures, and the safety, progress and economy of engineering are directly affected.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a pressure regulating chamber structure suitable for the situation that the topography and geological conditions of a high earthquake area are insufficient, and the problems can be effectively solved.
The technical scheme adopted by the invention is as follows:
the invention provides a pressure regulating chamber structure suitable for high earthquake region topography and geological conditions, which comprises a ground structure (1), a vertical shaft (2), an impedance hole section (3) and a pressure pipeline (4);
The ground structure (1) is arranged above the ground; -arranging the shaft (2) below the ground structure (1); the impedance hole section (3) is arranged below the vertical shaft (2); -arranging the pressure pipe (4) below the impedance hole section (3); the ground structure (1), the vertical shaft (2), the impedance hole section (3) and the pressure pipeline (4) are connected in a penetrating manner from top to bottom.
Preferably, the ground structure (1) comprises an upper pool (5), a cushion layer (6), blind ditches (7) and peripheral drainage ditches (9);
The upper pool (5) comprises a pool bottom plate (5-1) and side walls (5-2) integrally formed at the edge of the pool bottom plate (5-1); the side wall (5-2) is in a closed shape; the bottom of the pool bottom plate (5-1) is paved with the cushion layer (6), and the cushion layer (6) forms a drainage gradient from the central part to the edge; a plurality of blind ditches (7) are arranged below the cushion layer (6), and the blind ditches (7) are arranged along the direction of the drainage gradient; the peripheral drainage ditches (9) are arranged on the periphery of the cushion layer (6), and the peripheral drainage ditches (9) are communicated with the drainage ends of the blind ditches (7).
Preferably, the ground structure (1) further comprises an anchor bar (8); the anchor bars (8) are arranged in a dispersed vertical mode, one end of each anchor bar is anchored into the pool bottom plate (5-1), and the other end of each anchor bar penetrates through the cushion layer (6) and then is anchored into foundation rock soil below the cushion layer (6).
Preferably, the side wall (5-2) is a gravity type retaining wall.
Preferably, the horizontal section of the upper pool (5) is in a capsule shape, and comprises equal-diameter semicircles (5-3) with symmetrical left and right ends and two parallel equal-length straight edges (5-4) connected with the endpoints of the equal-diameter semicircles (5-3) at the two ends.
Preferably, the horizontal cross section of the vertical shaft (2) is circular, the vertical shaft is arranged below the pool bottom plate (5-1) and communicated with the pool bottom plate, the top surface of the vertical shaft (2) is flush with the upper surface of the pool bottom plate (5-1), and the center position of the top surface of the vertical shaft (2) is the center position of the equal-diameter semicircle (5-3) at one end.
Preferably, the bottom plate of the vertical shaft (2) is provided with a hole which is concentric with the impedance hole section (3) and has the same size, and is communicated with the impedance hole section (3).
Preferably, an impermeable layer (10) is arranged between the side surface of the well body structure of the vertical well (2) and the surrounding rock.
Preferably, the horizontal section of the impedance hole section (3) is circular, is arranged below the vertical shaft (2) and communicated, and the center of the horizontal section is coaxial with the center of the vertical shaft (2);
The structure form of the impedance hole section (3) is a steel plate lining, and a water blocking ring is arranged in the top area of the steel plate lining;
Backfilling concrete between the surrounding outside of the impedance hole section (3) and surrounding rock; the top of the impedance hole section (3) is connected with the lower surface of the bottom plate of the vertical shaft (2); connecting ribs are arranged on the top of the impedance hole section (3) in a circumferential direction, one end of each connecting rib extends into the bottom plate of the vertical shaft (2), and the other end of each connecting rib extends into a backfilled concrete area around the impedance hole section (3).
Preferably, the pressure pipeline (4) is horizontally arranged, vertically intersected with and communicated with the impedance hole section (3); the pressure pipeline (4) is structurally formed by lining steel plates, and concrete is backfilled between the pressure pipeline and surrounding rock.
The pressure regulating chamber structure suitable for the topography and geological conditions of the high earthquake area has the following advantages:
The pressure regulating chamber structure suitable for the high earthquake region with insufficient topographic and geological conditions has the advantages of high safety and high overall stability, and can not influence the stability of the side slope, so that the operating requirement of the pressure regulating chamber structure when the high earthquake region with insufficient topographic and geological conditions is met.
Drawings
FIG. 1 is a front view of a surge tank structure suitable for high seismic areas with insufficient topography and geological conditions;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
Fig. 3 is a cross-sectional view taken along line B-B of fig. 1.
Wherein: 1- - -ground structure; 2- - -a shaft; 3- - -impedance hole section; 4-pressure pipeline; 5- - -upper pool; 5-1- - -a pool bottom plate; 5-2- - -side walls; 5-3- - -equal diameter semicircle; 5-4- - -straight edge; 6-cushion layer; 7- - -blind drain; 8, anchor bars; 9-peripheral drainage ditch; 10- -an impermeable layer.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the invention more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, the present invention provides a pressure regulating chamber structure suitable for the topography and geological conditions of high earthquake areas, which comprises a ground structure 1, a vertical shaft 2, an impedance hole section 3 and a pressure pipeline 4. The ground structure 1 is arranged above the ground; a vertical shaft 2 is arranged below the ground structure 1; an impedance hole section 3 is arranged below the vertical shaft 2; a pressure pipeline 4 is arranged below the impedance hole section 3; the ground structure 1, the vertical shaft 2, the impedance hole section 3 and the pressure pipeline 4 are connected in a penetrating way from top to bottom.
The following describes the structural form of the ground structure 1, the shaft 2, the impedance hole section 3 and the pressure pipe 4 in detail:
First ground structure 1
The ground structure 1 comprises an upper pool 5, a cushion layer 6, blind ditches 7 and peripheral drainage ditches 9;
the upper pool 5 comprises a pool bottom plate 5-1 and side walls 5-2 integrally formed at the edge of the pool bottom plate 5-1; the side wall 5-2 is provided with structural joints, water stopping and joint filling materials, so that the anti-seismic and anti-seepage functions of the side wall 5-2 are further guaranteed; the side wall 5-2 is a gravity retaining wall with a closed shape, and has good anti-seismic performance.
Paving a cushion layer 6 at the bottom of the pool bottom plate 5-1, wherein the cushion layer 6 forms a drainage gradient from the central part to the edge; a plurality of blind ditches 7 are arranged below the cushion layer 6, and the blind ditches 7 are arranged along the direction of the drainage gradient; peripheral drainage ditches 9 are arranged on the periphery of the cushion layer 6, and the peripheral drainage ditches 9 are communicated with drainage ends of the blind ditches 7. Therefore, the water generated by the leakage of the upper pool 5 is injected into the blind ditch 7 after passing through the cushion layer 6 and then flows into the peripheral drainage ditch 9 through the blind ditch 7, so that the water leakage of the upper pool 5 can be discharged in time, and the adverse effect of the water leakage on the stability of the peripheral slope is avoided. According to the application, the blind drain 7 is arranged, on one hand, the drainage problem at the bottom of the upper pool 5 is improved, a netlike drainage system can be formed and guided into the peripheral drainage ditches 9, and the blind drain 7 can be in any form with a structural foundation drainage function; on the other hand, by providing the blind drain 7, the floating stability of the upper tank 5 can also be improved.
The ground structure 1 further comprises anchor bars 8; the anchor bars 8 are distributed vertically, one end of each anchor bar is anchored into the pool bottom plate 5-1, and the other end of each anchor bar penetrates through the cushion layer 6 and then is anchored into foundation rock soil below the cushion layer 6. Therefore, in the invention, the upper pool 5 of the ground structure 1 is connected with the foundation rock soil through the anchor bars 8, and the anti-floating performance of the upper pool 5 can be improved when the water level suddenly drops due to the action of the anchor bars 8.
As a specific implementation mode, the horizontal section of the upper pool 5 is in a capsule shape and comprises equal-diameter semicircles 5-3 with symmetrical left and right ends and two parallel equal-length straight edges 5-4 connecting the endpoints of the equal-diameter semicircles 5-3 at the two ends. In practical application, the shape of the upper pool 5 can be a closed shape which is randomly adapted to terrain conditions, meets hydraulic requirements and earthquake-resistant requirements, makes full use of the terrain of the ground surface, and expands the horizontal sectional area of the ground structure 1 as much as possible, so that under the condition of equal water inflow, the height of the ground structure 1 is effectively reduced, the earthquake-resistant performance is further improved, the design and construction difficulty is reduced, and the operation and maintenance are convenient. The adoption of the capsule-shaped horizontal section can further reduce the design and construction difficulty.
Therefore, the ground structure 1 designed by the application has the bottom drainage function, so that adverse effects of water leakage on the stability of the peripheral side slope are avoided; the anti-floating stability is excellent, the influence of pressure impact generated by sudden water level drop when the pressure regulating chamber structure works can be suitable, and the use requirement is met.
(II) shaft 2
The horizontal section of the vertical shaft 2 is circular, which is favorable for reducing design and construction difficulty and improving structural anti-seismic performance, the vertical shaft 2 is arranged below the pool bottom plate 5-1 and communicated with the pool bottom plate 5-1, the top surface of the vertical shaft 2 is flush with the upper surface of the pool bottom plate 5-1, and structural joints, water stopping and joint filling materials are arranged at the joint of the vertical shaft 2 and the pool bottom plate 5-1; the center position of the top surface of the vertical shaft 2 is the center position of an equal-diameter semicircle 5-3 at one end.
The bottom plate of the vertical shaft 2 is provided with holes concentric with the impedance hole section 3 and the holes with the same size and communicated with the impedance hole section 3.
An impermeable layer 10 is arranged between the side surface of the shaft body structure of the vertical shaft 2 and surrounding rock. The impermeable layer 10 can be in any form with an underground structure impermeable function, and the impermeable layer 10 can effectively control seepage of a pressure regulating chamber structure and reduce the influence of seepage on the stability of a slope.
(III) impedance hole section 3
The horizontal section of the impedance hole section 3 is circular, is arranged below the vertical shaft 2 and communicated, and the center of the horizontal section is coaxial with the center of the vertical shaft 2;
The impedance hole section 3 is in a steel plate lining structure, a water blocking ring is arranged in the top area of the steel plate lining, seepage of the impedance hole section 3 is effectively controlled, and the influence of seepage on slope stability is reduced.
Backfilling concrete between the surrounding outside of the impedance hole section 3 and surrounding rock; the top of the impedance hole section 3 is connected with the lower surface of the bottom plate of the vertical shaft 2; connecting ribs are arranged on the top of the impedance hole section 3 in a circumferential direction, one end of each connecting rib extends into the bottom plate of the vertical shaft 2, and the other end of each connecting rib extends into a backfilled concrete area around the impedance hole section 3.
(IV) pressure pipe 4
The pressure pipeline 4 is horizontally arranged, vertically intersected with and communicated with the impedance hole section 3; the pressure pipeline 4 is structurally formed by lining steel plates, and concrete is backfilled between the pressure pipeline and surrounding rock.
The invention provides a pressure regulating chamber structure suitable for the condition of deficient topography and geology of a high earthquake region, which has the working principle that:
The pressure regulating chamber structure is used for reflecting water hammer waves, reducing water hammer pressure, optimizing the arrangement of a water diversion system of the hydropower station and improving the running condition of the hydropower station unit when the load changes. When the hydropower station unit is shut down or suddenly gets rid of load, the water body in the pressure pipeline 4 is suddenly increased, the water pressure is increased, the water body overflows into the vertical shaft 2 through the resistance hole section 3, when the volume of the vertical shaft 2 is insufficient, the water body continuously overflows into the ground structure 1 from the vertical shaft 2, and the water body and the water pressure in the pressure pipeline 4 are released through the process; when the hydropower station unit starts or the load suddenly increases, the water body in the pressure pipeline 4 suddenly decreases, the water pressure decreases, the water body downwards enters the pressure pipeline section 4 to supplement water through the impedance hole section 3, meanwhile, the vertical shaft 2 supplements water to the impedance hole section 3, the ground structure 1 supplements water to the vertical shaft 2, and through the process, the water body and the water pressure in the pressure pipeline 4 are supplemented, so that the use working condition of the hydropower station unit is met.
The following further describes a conventional hydropower station engineering adopting the technical scheme of the invention by taking the following example with reference to the accompanying drawings:
In a conventional hydropower station engineering, the position of a pressure regulating chamber is designed with the earthquake motion peak acceleration of 0.31g, the earthquake motion peak acceleration of 0.53g and the ground elevation of 430m, the upper part of the position is the residual slope crushed stone soil and the tuff sand, the covering layer is 16m, the middle part is the full-weathered tuff sand, the thickness is about 47m, the bottom rock mass is the strong-weathered tuff, and the highest surge water level of the conventional scheme is 455m. Factors such as high earthquake areas, insufficient ground height, poor geological conditions and the like provide challenges for the conventional pressure regulating chamber arrangement. Therefore, the pressure regulating chamber structure of the invention is arranged in the project: the equal-diameter semicircle diameter that ground structure 1 both ends symmetry set up is 40m, and two centre of a circle distance is 55m, and the side wall is gravity type barricade, and the slope ratio is 1:0.5; the bottom of the upper pool 5 is provided with a cushion layer 6, the thickness of the cushion layer 6 is 20cm, and 0.1 percent of gradient is arranged on two sides from the long axis of the upper pool 5; a blind ditch 7 is arranged at the bottom of the cushion layer 6, the blind ditch 7 adopts the modes of digging a groove, backfilling gravels and burying a plastic blind pipe covered with non-woven fabrics, and the blind ditch 7 is connected with a peripheral drainage ditch 9; the periphery of the upper pool 5 is provided with a peripheral drainage ditch 9; the inner diameter of the vertical shaft 2 is 25m, a reinforced concrete structure is adopted, and a flexible polymer mortar impermeable layer 10 is sprayed between the structure and surrounding rock; the top surface of the vertical shaft 2 is flush with the upper surface of the bottom plate of the ground structure 1, and structural joints, water stopping and joint filling materials are arranged at the joints; the diameter of the resistance hole section 3 is 4m, the steel plate lining and backfill concrete form is adopted, the bottom is vertically connected with the pressure pipeline 4, the top of the resistance hole section 3 is provided with connecting ribs in a circumferential way, one end of the connecting ribs stretches into the vertical shaft bottom plate, one end of the connecting ribs stretches into the backfill concrete area of the resistance hole section 3, and the top area of the steel plate lining is provided with a water blocking ring; the pressure pipeline 4 is horizontally arranged, has the diameter of 8.2m and adopts the form of steel plate lining and backfill concrete.
Proved by verification, the ground structure of the pressure regulating chamber structure has high safety and high overall stability, and seepage does not influence the stability of the side slope, so that the use requirement of the pressure regulating chamber structure in the case of insufficient topography and geological conditions in a high earthquake area is met.
Therefore, the pressure regulating chamber structure suitable for the topography and geological conditions of the high earthquake area has the following advantages: the pressure regulating chamber structure suitable for the high earthquake region with insufficient topographic and geological conditions has the advantages of high safety and high overall stability, and can not influence the stability of the side slope, so that the operating requirement of the pressure regulating chamber structure when the high earthquake region with insufficient topographic and geological conditions is met.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which is also intended to be covered by the present invention.
Claims (7)
1. The pressure regulating chamber structure suitable for the topography and geological conditions of the high earthquake area is characterized by comprising a ground structure (1), a vertical shaft (2), an impedance hole section (3) and a pressure pipeline (4);
The ground structure (1) is arranged above the ground; -arranging the shaft (2) below the ground structure (1); the impedance hole section (3) is arranged below the vertical shaft (2); -arranging the pressure pipe (4) below the impedance hole section (3); the ground structure (1), the vertical shaft (2), the impedance hole section (3) and the pressure pipeline (4) are connected in a penetrating manner from top to bottom;
the ground structure (1) comprises an upper pool (5), a cushion layer (6), blind ditches (7) and peripheral drainage ditches (9);
The upper pool (5) comprises a pool bottom plate (5-1) and side walls (5-2) integrally formed at the edge of the pool bottom plate (5-1); the side wall (5-2) is in a closed shape; the bottom of the pool bottom plate (5-1) is paved with the cushion layer (6), and the cushion layer (6) forms a drainage gradient from the central part to the edge; a plurality of blind ditches (7) are arranged below the cushion layer (6), and the blind ditches (7) are arranged along the direction of the drainage gradient; the peripheral drainage ditches (9) are arranged on the periphery of the cushion layer (6), and the peripheral drainage ditches (9) are communicated with the drainage ends of the blind ditches (7);
The ground structure (1) further comprises anchor bars (8); the anchor bars (8) are arranged vertically in a dispersed mode, one end of each anchor bar is anchored into the pool bottom plate (5-1), and the other end of each anchor bar penetrates through the cushion layer (6) and then is anchored into foundation rock soil below the cushion layer (6);
the horizontal section of the upper pool (5) is in a capsule shape and comprises equal-diameter semicircles (5-3) with symmetrical left and right ends and two parallel equal-length straight edges (5-4) connected with the endpoints of the equal-diameter semicircles (5-3) at the two ends.
2. A surge chamber structure adapted to deficient topographical geological conditions in areas of high earthquake according to claim 1, characterized in that said side walls (5-2) are gravity retaining walls.
3. The pressure regulating chamber structure suitable for high earthquake area topography and geological conditions shortage according to claim 1, wherein the horizontal section of the vertical shaft (2) is circular, is arranged below the pool bottom plate (5-1) and communicated, the top surface of the vertical shaft (2) is flush with the upper surface of the pool bottom plate (5-1), and the center position of the top surface of the vertical shaft (2) is the center position of the equal-diameter semicircle (5-3) at one end.
4. A surge tank structure adapted to deficient topographical conditions in high earthquake areas according to claim 1, characterized in that the bottom plate of the shaft (2) is provided with holes concentric with the impedance hole section (3) of the same size and communicating with the impedance hole section (3).
5. A surge chamber structure adapted to deficient topographic and geological conditions in areas of high earthquake according to claim 1, characterized in that a barrier (10) is provided between the side of the shaft body structure of the shaft (2) and the surrounding rock.
6. A surge chamber structure suitable for use in high earthquake areas with insufficient topography and geology conditions according to claim 1, characterized in that the impedance hole section (3) has a circular horizontal cross section, is arranged below the shaft (2) and is communicated with the shaft (2), and the center of the horizontal cross section is coaxial with the center of the shaft (2);
the structure form of the impedance hole section (3) is a steel plate lining, and a water blocking ring is arranged in the top area of the steel plate lining;
Backfilling concrete between the surrounding outside of the impedance hole section (3) and surrounding rock; the top of the impedance hole section (3) is connected with the lower surface of the bottom plate of the vertical shaft (2); connecting ribs are arranged on the top of the impedance hole section (3) in a circumferential direction, one end of each connecting rib extends into the bottom plate of the vertical shaft (2), and the other end of each connecting rib extends into a backfilled concrete area around the impedance hole section (3).
7. A surge chamber structure suitable for high seismic areas with insufficient topography and geology, according to claim 1, characterized in that said pressure pipes (4) are arranged horizontally, perpendicularly intersecting and communicating with said impedance hole segments (3); the pressure pipeline (4) is structurally formed by lining steel plates, and concrete is backfilled between the pressure pipeline and surrounding rock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410151366.2A CN117758693B (en) | 2024-02-02 | 2024-02-02 | Pressure regulating chamber structure suitable for high earthquake area topography geological conditions are not enough |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410151366.2A CN117758693B (en) | 2024-02-02 | 2024-02-02 | Pressure regulating chamber structure suitable for high earthquake area topography geological conditions are not enough |
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| CN117758693A CN117758693A (en) | 2024-03-26 |
| CN117758693B true CN117758693B (en) | 2024-06-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101349064A (en) * | 2008-08-26 | 2009-01-21 | 中国水利水电第五工程局 | Construction method of hydroelectric power station surge chamber vertical shaft under soft rock geological condition |
| DE102008002801A1 (en) * | 2008-03-11 | 2009-09-17 | Helmut-Schmidt Universität | Building for pumped-storage power station in geologically unstable area, has foundation arranged below lower side of floor, where foundation exhibits retainer, which is designed negatively to half-barrel shape of lower side of floor |
| CN101851935A (en) * | 2010-06-02 | 2010-10-06 | 中国市政工程西北设计研究院有限公司 | Differential pressure type automatic safe anti-floating system |
| CN201850539U (en) * | 2010-11-16 | 2011-06-01 | 安徽省水利水电勘测设计院 | Large-well variable-cross-section restricted-orifice surge chamber for water supply system of hydropower station |
| CN102644261A (en) * | 2012-05-02 | 2012-08-22 | 黄河勘测规划设计有限公司 | Surge shaft construction method combining impedance with overflow |
| CN204024174U (en) * | 2014-08-13 | 2014-12-17 | 大唐科技产业集团有限公司 | A kind of anti-uplift pressure pond |
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2024
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|---|---|---|---|---|
| DE102008002801A1 (en) * | 2008-03-11 | 2009-09-17 | Helmut-Schmidt Universität | Building for pumped-storage power station in geologically unstable area, has foundation arranged below lower side of floor, where foundation exhibits retainer, which is designed negatively to half-barrel shape of lower side of floor |
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