CN111719497B - Protection system for weir dam overflow mouth antiscour - Google Patents
Protection system for weir dam overflow mouth antiscour Download PDFInfo
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- CN111719497B CN111719497B CN202010544628.3A CN202010544628A CN111719497B CN 111719497 B CN111719497 B CN 111719497B CN 202010544628 A CN202010544628 A CN 202010544628A CN 111719497 B CN111719497 B CN 111719497B
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- prefabricated
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model provides a protection system that is used for weir dam overflow mouth antiscour which characterized in that: the device comprises a plurality of prefabricated tetrahedrons which are arranged side by side in a longitudinal and transverse mode, wherein the prefabricated tetrahedrons are connected in series into a whole through connecting steel wire ropes; and two ends of the connecting steel wire rope are connected and fixed through the anchoring devices. Compared with the prior art, each prefabricated tetrahedron connects into whole through wire rope, and anti-impact ability is stronger, can carry out the antiscour protection to the chute overflow mouth of large-traffic high risk dammed lake, effectively reduces dammed body overflow mouth and erodees down the speed of cutting, can satisfy dammed body overflow mouth scour prevention safety drainage flood's demand, protection low reaches residential point safety. The single-body anti-overturning device has the characteristics of large weight, large specific gravity, strong anti-impacting capability, high anti-overturning stability, simple structure, easy installation and the like.
Description
Technical Field
The invention relates to the field of disaster reduction of emergency disposal of a dammed lake, in particular to an anti-scouring protection system for an overflow port of a dammed dam.
Background
The natural disasters in the world are various in types, wide in distribution regions and high in occurrence frequency, and damage and loss of weight are caused. Wherein, the barrier lake has great threat to the life and property safety of people as a major flood and drought disaster. The most common and most effective manual intervention measure in the current high-risk barrier lake emergency treatment is to excavate a drainage groove, drain lake water and reduce the water level of the barrier lake through manual drainage, so that the purpose of reducing the burst risk of the barrier lake is achieved. The research results and practical experience of the current barrier lake emergency rescue technology show that: the overflow port of the weir plug body drainage groove is cut down too fast to generate over-designed drainage flood, so that the risk of a downstream area can be increased, and the life and property safety of the downstream people can be threatened.
In order to reduce the scouring risk to the downstream area when the dammed lake is burst and reduce the threat to the life and property safety of the downstream people, it is very necessary to develop an anti-scouring protection system for controlling the undercutting speed of the overflow port of the dammed dam.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an anti-scouring protection system for an overflow port of a damming dam. The anti-overturning device has the characteristics of strong anti-impacting capability, high anti-overturning stability, simple structure, easiness in installation and the like.
The object of the invention is achieved by the following measures: the utility model provides a protection system that is used for weir dam overflow mouth antiscour which characterized in that: the steel wire rope connecting device comprises a plurality of prefabricated tetrahedrons which are arranged side by side in a longitudinal and transverse mode, and the prefabricated tetrahedrons are connected in series into a whole through the connecting steel wire rope.
In the technical scheme, grooves are reserved on at least three faces of the prefabricated tetrahedron, hanging rings are buried in the reserved grooves or the grooves on at least three faces are communicated with each other, and all adjacent prefabricated tetrahedrons are sequentially connected in series with the hanging rings on the prefabricated tetrahedron through the connecting steel wire ropes to form a whole.
In the above technical scheme, the two ends of the connecting steel wire rope are provided with the anchoring devices, and the two ends of the connecting steel wire rope are connected and fixed through the anchoring devices.
In the above technical scheme, the prefabricated tetrahedron is a regular tetrahedron.
In the technical scheme, the prefabricated tetrahedron is a reinforced concrete prefabricated block, and a steel reinforcement framework net is arranged in the prefabricated tetrahedron.
In the technical scheme, the length of the edge of the prefabricated tetrahedron is 3-3.5 m.
In the technical scheme, the weight of the single block is 8-15 tons.
In the above technical scheme, the groove is hemispherical.
In the technical scheme, the steel reinforcement framework net is formed by connecting edge framework steel reinforcements and support stirrups.
In the technical scheme, the edge framework steel bars are distributed on six edges of the prefabricated tetrahedron and are welded into a whole end to end.
In the technical scheme, the support stirrup is a ring rib formed by connecting equal division points (at least trisection) of each edge end to end correspondingly and is welded with the edge framework steel bars into a whole.
In the technical scheme, a circle of reinforced support stirrups is additionally arranged in a small range of each corner vertex of the prefabricated tetrahedron.
Compared with the prior art, the protection system for the anti-scouring of the overflow port of the weir dam has the following advantages: reach the prefabricated reinforced concrete tetrahedron of 8 ~ 15 tons of weights by monomer weight and form, each prefabricated tetrahedron connects into wholly through wire rope, and anti-impact ability is stronger, can carry out the antiscour protection to the chute overflow mouth in large-traffic high risk weir dam lake, effectively reduces weir dam body overflow mouth and erodees down the speed of cutting, can satisfy weir dam body overflow mouth scour prevention safety and excrete the demand of flood, protection low reaches resident point safety. The single-body anti-overturning device has the characteristics of large weight, large specific gravity, strong anti-impacting capability, high anti-overturning stability, simple structure, easy installation and the like.
Drawings
FIG. 1 is a layout of a prefabricated tetrahedral reinforcement cage of the present invention;
FIG. 2 is a top view of a prefabricated tetrahedral structure of the present invention;
FIG. 3 is a schematic layout of prefabricated tetrahedrons connected together by steel wire ropes.
In the figure: 1. prefabricating a tetrahedron; 2. a seamed edge framework steel bar; 3. supporting the stirrups; 4. a hemispherical recess; 5. a hoisting ring; 6. connecting a steel wire rope; 7. an anchoring device.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, but they are not to be construed as limiting the invention, and are merely illustrative, and the advantages of the present invention will be more clearly understood and appreciated by those skilled in the art.
With reference to the accompanying drawings: the invention relates to an anti-scouring protection system for an overflow port of a damming dam, which comprises a plurality of prefabricated tetrahedrons which are arranged side by side in a side-by-side mode, wherein the prefabricated tetrahedrons are connected in series into a whole through connecting steel wire ropes. The prefabricated tetrahedron has the characteristics of lower gravity center and better structure anti-overturning stability. At least three prefabricated tetrahedrons are provided with mutually-penetrated grooves, and the prefabricated tetrahedrons are connected in series into a whole through the connecting steel wire rope
The prefabricated tetrahedron at least three face reserve the recess, all bury rings (hidden rings) or at least three faces in reserving the recess on the recess link up each other, pass through between each adjacent prefabricated tetrahedron connect in proper order in series in its rings and form wholly. A groove is reserved on each surface, so that the flanging phenomenon cannot be caused during placement, smooth stacking is facilitated, and the workload is reduced; the hanging ring is placed in the reserved groove, transportation or lifting is facilitated, and the hanging ring is not easy to damage.
And two ends of the connecting steel wire rope are connected and fixed through the anchoring devices.
The prefabricated tetrahedron is a regular tetrahedron; the prefabricated tetrahedron is a reinforced concrete prefabricated block, and a steel reinforcement framework net is distributed in the prefabricated tetrahedron; the edge length of the prefabricated tetrahedron is 3-3.5 m; the weight of the single block is 8-15 tons; the groove is hemispherical; the steel bar framework net is formed by connecting edge framework steel bars and support stirrups; as shown in fig. 1 to 3. Adopting a reinforced concrete prefabricated block with a steel reinforcement framework net arranged inside a regular tetrahedron, wherein steel reinforcements of the edge framework are distributed on six edges of the prefabricated tetrahedron and are welded into a whole end to end; the support stirrup is a ring rib formed by connecting equant points (at least trisection) of each edge end to end correspondingly and is welded with the edge framework steel bar into a whole; a circle of reinforced support stirrups are additionally arranged in a small range of each corner vertex of the prefabricated tetrahedron; the reinforcing steel bar framework net structure is beneficial to improving the firmness and specific gravity of the prefabricated tetrahedron, increasing the weight of the monomer and improving the stability of the prefabricated tetrahedron.
The prefabricated tetrahedron can be directly hoisted, transported and thrown by a heavy-load helicopter through a hoisting ring; or the steel wire rope penetrates through the hanging rings to be connected into a whole. And the two ends of the steel wire rope are fixedly connected through the anchoring device. The direct hoisting by the heavy-load helicopter is not limited by site traffic terrain conditions, and is favorable for improving the transportation speed and improving the efficiency.
The invention provides a protection system for delaying the downward cutting speed of the overflow port of a weir plug body and resisting scouring of the overflow port of the weir plug body aiming at the downward cutting condition of the overflow port of the weir plug body under the scouring of drainage flood, and an anti-scouring protection system formed by serially connecting the protection system, so as to realize the dynamic balance of the overflow port of the weir plug body and achieve the aim of safely and smoothly draining the overflow flood of a weir plug lake.
The invention can form an integral anti-scouring protection system by connecting the steel wire ropes in series, can greatly improve the anti-scouring capability of the protection system, effectively reduce the scouring undercut speed of the overflow port of the weir plug and reduce the security threat to downstream residents.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.
Other parts not described in detail are prior art.
Claims (3)
1. The utility model provides a protection system that is used for weir dam overflow mouth antiscour which characterized in that: the prefabricated regular tetrahedrons are arranged side by side in a longitudinal and transverse mode and are connected in series into a whole through connecting steel wire ropes;
grooves are reserved on four surfaces of each prefabricated regular tetrahedron, hanging rings are embedded in the grooves or the grooves are communicated with each other, and the adjacent prefabricated regular tetrahedrons are sequentially connected with the hanging rings on the prefabricated regular tetrahedrons in series through the connecting steel wire ropes to form a whole;
two ends of the connecting steel wire rope are provided with anchoring devices, and the two ends of the connecting steel wire rope are connected and fixed through the anchoring devices; the prefabricated regular tetrahedron is a reinforced concrete prefabricated block, and a steel reinforcement framework net is distributed in the prefabricated regular tetrahedron;
the weight of the prefabricated regular tetrahedron single block is 8-15 tons;
the steel bar framework net is formed by connecting edge framework steel bars and support stirrups;
the edge framework steel bars are distributed on six edges of the prefabricated regular tetrahedron and are welded end to form a whole;
the support stirrup is a ring rib formed by correspondingly connecting at least trisection points of each edge end to end and is welded with the edge framework steel bars into a whole;
and a circle of reinforced support stirrup is arranged at the vertex of each corner of the prefabricated regular tetrahedron.
2. A protection system for weir dam overflow scour protection according to claim 1, wherein: the length of the edge of the prefabricated regular tetrahedron is 3-3.5 m.
3. A protection system for weir dam overflow scour protection according to claim 1, wherein: the groove is hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010544628.3A CN111719497B (en) | 2020-06-15 | 2020-06-15 | Protection system for weir dam overflow mouth antiscour |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010544628.3A CN111719497B (en) | 2020-06-15 | 2020-06-15 | Protection system for weir dam overflow mouth antiscour |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111719497A CN111719497A (en) | 2020-09-29 |
| CN111719497B true CN111719497B (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010544628.3A Active CN111719497B (en) | 2020-06-15 | 2020-06-15 | Protection system for weir dam overflow mouth antiscour |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718085A (en) * | 2009-11-05 | 2010-06-02 | 中国科学院水利部成都山地灾害与环境研究所 | Disposal method of Barrier Lake for artificially regulating and controlling drain flow and application thereof |
| CN202745013U (en) * | 2012-08-02 | 2013-02-20 | 许建军 | Concrete body interlocking block soft mattress |
| AU2013203731B2 (en) * | 2012-05-22 | 2015-05-21 | Hutchinson, John Brent MR | A submersible structure |
| CN104963323A (en) * | 2015-06-21 | 2015-10-07 | 浙江省水利水电勘测设计院 | Scour-preventing groove for chain precast block protective surface |
| CN209025071U (en) * | 2018-07-24 | 2019-06-25 | 嘉兴欣创混凝土制品有限公司 | The solid pile and its manufacturing line of embedded hanging ring |
| CN209260667U (en) * | 2018-11-16 | 2019-08-16 | 中国水利水电第八工程局有限公司 | Side slope anti-scouring system |
| CN210482183U (en) * | 2019-06-04 | 2020-05-08 | 河北省水利水电勘测设计研究院 | Hydraulic engineering flood prevention emergency precast block |
-
2020
- 2020-06-15 CN CN202010544628.3A patent/CN111719497B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718085A (en) * | 2009-11-05 | 2010-06-02 | 中国科学院水利部成都山地灾害与环境研究所 | Disposal method of Barrier Lake for artificially regulating and controlling drain flow and application thereof |
| AU2013203731B2 (en) * | 2012-05-22 | 2015-05-21 | Hutchinson, John Brent MR | A submersible structure |
| CN202745013U (en) * | 2012-08-02 | 2013-02-20 | 许建军 | Concrete body interlocking block soft mattress |
| CN104963323A (en) * | 2015-06-21 | 2015-10-07 | 浙江省水利水电勘测设计院 | Scour-preventing groove for chain precast block protective surface |
| CN209025071U (en) * | 2018-07-24 | 2019-06-25 | 嘉兴欣创混凝土制品有限公司 | The solid pile and its manufacturing line of embedded hanging ring |
| CN209260667U (en) * | 2018-11-16 | 2019-08-16 | 中国水利水电第八工程局有限公司 | Side slope anti-scouring system |
| CN210482183U (en) * | 2019-06-04 | 2020-05-08 | 河北省水利水电勘测设计研究院 | Hydraulic engineering flood prevention emergency precast block |
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| CN111719497A (en) | 2020-09-29 |
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