CN110468809B - Fixing structure for water supply pipeline of outlet shaft well wall of deep-buried underground powerhouse of hydropower station and construction method of fixing structure - Google Patents
Fixing structure for water supply pipeline of outlet shaft well wall of deep-buried underground powerhouse of hydropower station and construction method of fixing structure Download PDFInfo
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- CN110468809B CN110468809B CN201910695771.XA CN201910695771A CN110468809B CN 110468809 B CN110468809 B CN 110468809B CN 201910695771 A CN201910695771 A CN 201910695771A CN 110468809 B CN110468809 B CN 110468809B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000010276 construction Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 238000005192 partition Methods 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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Classifications
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
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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)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention provides a fixing structure and a construction method for a water supply pipeline of a wire outlet shaft well wall of a deep-buried underground powerhouse of a hydropower station. The fixed structure comprises an embedded part, a steel bracket, I-shaped steel and outer concrete; the embedded part is embedded in a predetermined position on the wall of the vertical shaft; the steel bracket is fixedly connected with the embedded part, and the I-shaped steel is arranged on the steel bracket and is fixedly connected with the steel bracket; the outer concrete is poured and formed through a template erected on the I-shaped steel, is combined with the I-shaped steel into a whole, and coats the pipeline. The invention effectively ensures the fixation and long-term operation safety of a single pipeline or a plurality of pipelines vertically towards the well wall through a plurality of fixing structures arranged at different heights and a fixing structure formed by an embedded part, a steel bracket, I-steel and outer concrete, has the advantages of high reliability, strong bearing capacity, no damage to the original structure of the vertical well and the like, and can be stably and safely arranged on the well wall of the outgoing line vertical well of an underground factory building with the depth of more than 100 m.
Description
Technical Field
The invention relates to underground space engineering of hydropower, water conservancy and the like, in particular to a fixing structure of a water supply pipeline of a well wall of a wire outlet shaft of a deep-buried underground powerhouse of a hydropower station and a construction method thereof.
Background
The hydropower is used as clean energy, the power generation cost is low, and the promotion of the hydropower development is an important component for optimizing the energy structure in China. The western hydropower station factory building is mostly in an underground structure form, is limited by conditions such as topographic and geological conditions, pivot pattern arrangement and the like, and the cables need to be in a wire outlet shaft structure form. In order to convey water in a water feeding pool arranged on a wire outlet field at the top of the wire outlet shaft to an underground plant and a main transformer chamber, a water supply pipe needs to be vertically arranged on the wall of the shaft, when the buried depth of the underground plant is larger and the wire outlet shaft reaches more than 100m, the bottom load can reach dozens of tons, the reliable fixation and the operation safety of pipelines are difficult to guarantee only by a supporting structure at the bottom of the water pipe, and when a plurality of pipelines exist, the method is quite certain.
Disclosure of Invention
One of the technical problems solved by the invention is as follows: the fixing structure for the outlet shaft well wall water supply pipeline of the hydropower station deep-buried underground powerhouse is provided for solving the problem of fixing the outlet shaft well wall pipeline of the deep-buried underground powerhouse, can effectively guarantee the fixing and long-term operation safety of a plurality of pipelines, and has the advantages of high reliability, strong bearing capacity, no damage to the original structure of the shaft and the like. Therefore, the invention adopts the following technical scheme:
a fixing structure of a water supply pipeline of a well wall of a wire outlet shaft of a deep-buried underground powerhouse of a hydropower station is characterized in that the fixing structure comprises an embedded part, a steel corbel, I-shaped steel and outer-wrapped concrete;
the embedded part is embedded in a predetermined position on the wall of the vertical shaft; the steel bracket is fixedly connected with the embedded part, and the I-shaped steel is arranged on the steel bracket and is fixedly connected with the steel bracket; the outer concrete is poured and formed through a template erected on the I-shaped steel, is combined with the I-shaped steel into a whole, and coats the pipeline.
Further, the embedded parts are arranged in partition walls on two sides of the water supply pipeline, and the bottom elevations of the embedded parts are the same.
When the height of the shaft exceeds 100m, a pipeline fixing structure is arranged every 60m, namely, embedded parts are arranged every 60 m. The pipeline comprises a plurality of parallel pipelines.
The other technical problem solved by the invention is as follows: the construction method of the fixed structure of the water supply pipeline of the wall of the outlet shaft of the deep-buried underground powerhouse of the hydropower station is suitable for construction in the outlet shaft with the depth of more than 100m, is simple and feasible, can improve the reliability of the fixed structure, effectively ensures the fixation and long-term operation safety of a plurality of pipelines, and has the advantages of high reliability, strong bearing capacity, no damage to the original structure of the shaft and the like. Therefore, the invention adopts the following technical scheme:
a fixed structure construction method for a water supply pipeline of a wire outlet shaft well wall of a deep-buried underground powerhouse of a hydropower station is characterized by comprising the following steps:
1) accurately pre-burying partition wall embedded parts at predetermined positions with different depths when shaft concrete is poured by utilizing an integral slip form technology;
2) after the construction of the corresponding floor of the outlet vertical shaft is finished, effectively welding the assembled steel corbel with the partition wall embedded part;
3) i-shaped steel is placed on the upper part of the steel bracket and is effectively welded with the steel bracket;
4) after the I-shaped steel is fixed, a water supply pipeline of the wire outlet shaft wall is installed;
5) after the water supply pipeline is temporarily fixed, erecting bottom and side wall templates on the I-shaped steel, pouring outer concrete, and wrapping the pipeline.
Further, in the position selection of the embedded parts, the position is preferentially close to the bottom plate of the floor.
Further, the thickness of the outer coating concrete is determined according to the diameter of the pipeline, and the strength grade of the concrete is not lower than C25.
The invention has the beneficial effects that: in the extremely deep outlet shaft, through a plurality of fixed knot that the co-altitude set up, through the fixed knot who is formed by built-in fitting, steel corbel, I-steel, outsourcing concrete structure, effectively guarantee perpendicularly to the fixed of wall of a well single pipeline or multi-pipeline and for a long time operation safety, have the reliability height, bearing capacity is strong, do not destroy advantages such as the original structure of shaft, can set up on the underground factory building outlet shaft wall of a well more than 100m steadily safely.
Drawings
Fig. 1 and 2 are side views of different sides of a fixing structure according to an embodiment of the present invention.
Fig. 3 is a top view of the fixation structure of the present invention.
Detailed Description
As shown in fig. 1-3, the fixing structure for the water supply pipeline of the outlet shaft well wall of the deep-buried underground powerhouse of the hydropower station comprises an embedded part 3, a steel bracket 4, an I-shaped steel 5 and an outer concrete 6;
the embedded part 3 is embedded in a predetermined position on the wall of the vertical shaft; in the position selection of the embedded parts, the embedded parts are preferentially close to the bottom plates of the floors, and the embedded parts are arranged in the partition walls 2 at two sides of the water supply pipeline 7 and have the same bottom elevation.
The steel bracket 4 is fixedly connected with the embedded part 3, and the I-shaped steel 5 is arranged on the steel bracket 4 and is fixedly connected with the steel bracket 4; the outer concrete 6 is poured and formed through a template erected on the I-shaped steel 5, is combined with the I-shaped steel 5 into a whole and coats the water supply pipeline 7, and the water supply pipeline 7 comprises a plurality of parallel pipelines.
When the height of the vertical shaft exceeds 100m, a pipeline fixing structure is arranged every 60m, namely, embedded parts are arranged every 60m, the distance represents a proper principle and requirement, and the embedded parts 3 can float up and down by a certain distance by taking the distance as the center in construction.
The fixing structure is constructed by adopting the following steps:
1) accurately pre-burying partition wall embedded parts 3 at predetermined positions with different depths when shaft concrete is poured by utilizing an integral slip form technology; marking is carried out, and later-period searching is facilitated.
2) And after the construction of the corresponding floor of the wire outlet vertical shaft is finished, the assembled steel corbel 4 and the partition wall embedded part 3 are effectively welded.
3) And I-shaped steel is placed on the upper part of the steel bracket and is effectively welded with the steel bracket.
4) And after the I-shaped steel is fixed, a water supply pipeline of the wire outlet shaft wall is installed. The outer surfaces of the steel corbels 4 and the I-shaped steel 5 can be coated with anticorrosive paint while the water supply pipeline 7 is installed, so that the durability of the fixing structure is improved while the construction time is saved.
5) After the water supply pipeline is temporarily fixed, erecting bottom and side wall templates on the I-shaped steel, pouring outer concrete, and wrapping the pipeline.
The above embodiment is merely a preferred embodiment of the present invention, and those skilled in the art will understand that modifications or substitutions of technical solutions or parameters in the embodiment can be made without departing from the principle and essence of the present invention, and all of them shall be covered by the protection scope of the present invention.
Claims (2)
1. A fixing structure of a water supply pipeline of a well wall of a wire outlet shaft of a deep-buried underground powerhouse of a hydropower station is characterized in that the fixing structure comprises an embedded part, a steel corbel, I-shaped steel and outer-wrapped concrete; a plurality of partition walls are arranged in the shaft walling crib, and the end parts of the partition walls are connected with the shaft walling crib; the embedded parts are arranged in partition walls on two sides of the water supply pipeline, and the bottom elevations of the embedded parts in the partition walls on the two sides are the same;
the I-shaped steel is arranged on the steel corbels of the partition walls on the two sides and is fixedly connected with the steel corbels; the outer concrete is poured and formed through a template erected on the I-shaped steel and is combined with the I-shaped steel into a whole, and the pipeline is coated in the outer concrete;
the depth of the outlet vertical shaft is more than 100m, and a plurality of fixing structures are arranged along the depth of the outlet vertical shaft;
the embedded parts are close to the bottom plate of the floor;
the thickness of the outer coating concrete is determined according to the diameter of the pipeline, and the strength grade of the concrete is not lower than C25.
2. The construction method of the fixed structure of the water supply pipeline of the wall of the outlet shaft of the hydropower station deep-buried underground powerhouse according to claim 1, is characterized by comprising the following steps:
1) accurately pre-burying partition wall embedded parts at predetermined positions with different depths when shaft concrete is poured by utilizing an integral slip form technology;
2) after the construction of the corresponding floor of the outlet vertical shaft is finished, effectively welding the assembled steel corbel with the embedded part;
3) i-shaped steel is placed on the upper part of the steel bracket and is effectively welded with the steel bracket;
4) after the I-shaped steel is fixed, a water supply pipeline of the wire outlet shaft wall is installed;
5) after the water supply pipeline is temporarily fixed, the bottom and the side wall template are erected on the I-shaped steel, and the outer concrete is poured to wrap the water supply pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695771.XA CN110468809B (en) | 2019-07-30 | 2019-07-30 | Fixing structure for water supply pipeline of outlet shaft well wall of deep-buried underground powerhouse of hydropower station and construction method of fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695771.XA CN110468809B (en) | 2019-07-30 | 2019-07-30 | Fixing structure for water supply pipeline of outlet shaft well wall of deep-buried underground powerhouse of hydropower station and construction method of fixing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110468809A CN110468809A (en) | 2019-11-19 |
| CN110468809B true CN110468809B (en) | 2021-08-31 |
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| CN201910695771.XA Active CN110468809B (en) | 2019-07-30 | 2019-07-30 | Fixing structure for water supply pipeline of outlet shaft well wall of deep-buried underground powerhouse of hydropower station and construction method of fixing structure |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201125455Y (en) * | 2007-11-21 | 2008-10-01 | 中国水电顾问集团华东勘测设计研究院 | Embedded type underground workshop building drainpipe well |
| KR100967177B1 (en) * | 2008-03-17 | 2010-07-27 | (주)재경건설 | The safety fence for construction work |
| CN201433770Y (en) * | 2009-06-10 | 2010-03-31 | 中国瑞林工程技术有限公司 | Elbow bearing support of water discharging pipe with large pipe diameter of deep shaft |
| CN201539257U (en) * | 2009-11-14 | 2010-08-04 | 灵宝市金源矿业有限责任公司 | Concrete wall for annular shaft |
| CN202073568U (en) * | 2011-03-03 | 2011-12-14 | 中煤第七十一工程处 | Vertical shaft pipeline fixing device |
| CN205206873U (en) * | 2015-10-25 | 2016-05-04 | 中国瑞林工程技术有限公司 | Dark shaft hydraulic stretching bracket formula drain pipe return bend supporting arrangement |
| CN210636402U (en) * | 2019-07-30 | 2020-05-29 | 中国电建集团华东勘测设计研究院有限公司 | Fixing structure for water supply pipeline of outlet shaft well wall of deep-buried underground powerhouse of hydropower station |
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