CN112796368B - Repairing method for large-diameter water intake head top cover - Google Patents
Repairing method for large-diameter water intake head top cover Download PDFInfo
- Publication number
- CN112796368B CN112796368B CN202011625025.2A CN202011625025A CN112796368B CN 112796368 B CN112796368 B CN 112796368B CN 202011625025 A CN202011625025 A CN 202011625025A CN 112796368 B CN112796368 B CN 112796368B
- Authority
- CN
- China
- Prior art keywords
- steel frame
- steel
- top cover
- water intake
- repairing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/02—Making or lining canals
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Revetment (AREA)
Abstract
The invention discloses a method for repairing a large-diameter water taking head top cover. The process is as follows: prefabricating an outsourced steel frame and a water inlet steel grid; pouring concrete at the original foundation position of the underwater water intake head to form a lower foundation of the newly manufactured top cover, and embedding connecting bolts in the lower foundation; transporting the prefabricated steel frame to the upper part of the lower foundation in a hoisting mode, and connecting the steel frame with the lower foundation through pre-buried connecting bolts; after the steel frame is installed, pouring the frame part below the water inlet window on the steel frame in an underwater concrete pouring mode, so that the steel frame and the lower foundation form a whole; and installing the prefabricated steel grating on the top of the steel frame to finish the repair of the water intake head top cover. The invention can be suitable for repairing the top cover of the water taking head under various conditions, including fresh water and sea water conditions, can be suitable for water taking heads with various shapes, can meet the service life after repairing, and has relatively lower construction cost and faster construction speed.
Description
Technical Field
The invention belongs to the technical field of hydraulic structure restoration, and particularly relates to a restoration method for a large-diameter water taking head top cover.
Background
At present, the water intake head is widely applied to various thermal power plants and water supply and drainage facilities. The water intake head generally refers to a water intake structure of ground water intake engineering, and comprises an inflow device, a water intake pipeline, a supporting structure, necessary auxiliary facilities such as protection, guide and treatment, and the like. The water intake head is a water intake structure of the surface water intake system and is the first part of the whole water intake system.
Due to the existence of wind waves, tides and dark currents, when the water taking head is impacted by water flow in the ocean, the direction is changeable, and the impact force is huge. In addition, the metal components in the water intake head are easy to be corroded and damaged in sea water, and the water intake head is also affected by serious biological adhesion and blockage in sea.
With the increase of water intake, the size of the water intake is continuously increased, and the diameter of the largest water intake is already more than 10m at present. The water intaking head is hollow structure, to major diameter water intaking head top cap, along with span increases, its rigidity greatly reduced, water intaking head upper portion is equipped with the window of intaking simultaneously, leads to top cap and lateral wall's connected node intensity limited. Under the long-term effect of rivers, corrosion, biological influence and the like, the top cap of major diameter water intake head and lateral wall connected node produce fatigue failure easily, lead to the top cap to drop, lead to aquatic debris to get into water intake water diversion pipe, make water intake quality variation, block the water diversion pipe even, seriously influence water intake safety.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a large-diameter water-taking head top cover repairing method which can effectively recover the water-taking head function and meet the subsequent service life requirements.
The technical scheme adopted by the invention is as follows: a repairing method of a large-diameter water intake head top cover comprises the following steps:
1) Prefabricating an outsourced steel frame and a water inlet steel grid;
2) Pouring concrete at the original foundation position of the underwater water intake head to form a lower foundation of the top cover, and embedding connecting bolts in the lower foundation;
3) Transporting the prefabricated steel frame to the upper part of the lower foundation in a hoisting mode, and connecting the steel frame with the lower foundation through pre-buried connecting bolts;
4) After the steel frame is installed, pouring the frame part below the water inlet window on the steel frame in an underwater concrete pouring mode, so that the steel frame and the lower foundation form a whole;
5) And installing the prefabricated steel grating on the top of the steel frame to finish the repair of the water intake head top cover.
Further, the connecting bolts are buried and fixed in the lower foundation through underwater epoxy anchoring glue.
Further, the overall dimension of the steel frame is sufficient to enclose the water intake head inside the frame.
Further, the steel frame comprises a plurality of support columns and reinforcing hoops, the arrangement structure of the support columns is consistent with the appearance structure of the water intake head, and the support columns are connected into a whole through the annular reinforcing hoops.
Further, grid mounting grooves are formed in the outer sides of the upper ends of the support columns, and lifting lugs for lifting are arranged at the tops of the support columns.
Further, the steel grating and the steel frame are connected through bolts.
Further, the steel grating includes a side ring-type grating and a top planar grating.
Further, the steel frame and the steel grating are made of carbon steel, and the surfaces of the steel frame and the steel grating are anti-corrosion by adopting an anti-corrosion coating and cathode protection combined mode.
Furthermore, the steel frame and the steel grating are made of duplex stainless steel, and the surfaces of the steel frame and the steel grating are protected from corrosion in a cathodic protection mode.
The invention adopts the underwater concrete to pour the foundation of the steel frame, has simple construction, low cost and lower requirement on construction precision; the steel frame is adopted to manufacture an external structure, the structure can adapt to various types of water taking heads, the strength is high, the safety requirement of the structure can be met, in addition, the self weight is light, and the lifting is convenient; the water inlet steel grating and the steel frame are connected by bolts, so that the requirement of secondary replacement can be met. After restoration is accomplished, restoration structure and former water intaking head form overall structure, can resist rivers effect better, can effectively resume the service function of water intaking head, and the structure is safe and reliable, can prevent seawater corrosion, very big reduction the restoration expense and the construction degree of difficulty of water intaking head, can solve the restoration problem of large-scale water intaking head top cap under the prior art background betterly.
The invention can be suitable for repairing the top cover of the water taking head under various conditions, including fresh water and sea water conditions, can be suitable for water taking heads with various shapes, can meet the service life after repairing, and has relatively lower construction cost and faster construction speed.
Drawings
FIG. 1 is a cross-sectional view of a water intake head cap repair according to the present invention.
FIG. 2 is a cross-sectional view of a water intake head steel frame of the present invention.
Fig. 3 is a top plan view of the steel grating of the present invention.
Fig. 4 is a schematic view of a top shackle of a steel frame according to the invention.
In the figure, 1-steel frame; 2-steel grating; 3-lifting lugs; 4-grid mounting slots; 5-water intake head; 6-connecting bolts; 7-pouring concrete underwater.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present invention, but is not intended to limit the present invention. In addition, technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The invention provides a method for repairing a large-diameter water intake head top cover, which comprises the following steps:
1) A prefabricated outsourced steel frame 1 and a water inlet steel grid 2;
2) Pouring concrete at the original foundation position of the underwater water intake head to form a lower foundation 7 of the newly manufactured top cover, and embedding connecting bolts 6 in the lower foundation 7;
3) The prefabricated steel frame 1 is transported to the upper part of the lower foundation 7 in a hoisting mode, and the steel frame 1 is connected with the lower foundation 7 through the pre-buried connecting bolts 6;
4) After the steel frame 1 is installed, pouring the frame part below the water inlet window on the steel frame 1 in an underwater concrete pouring mode, so that the steel frame and the lower foundation form a whole;
5) And installing the prefabricated steel grating 2 on the top of the steel frame 1 to finish the repair of the water intake head top cover.
The following describes the repair process of the water intake head top cover in detail:
as shown in fig. 1-4, the top cover repairing scheme mainly adopts an external structure to replace the original water intake head top cover, and still utilizes the side wall and the bottom plate of the original water intake head, wherein the external structure consists of a lower foundation 7 (underwater concrete pouring), an outsourced steel frame 1 and a water intake steel grid 2.
The lower foundation 7 is formed into an integral foundation by adopting underwater pouring concrete around the water taking head and the original water taking head, foundation bolt holes are reserved, and connecting bolts are buried and fixed in the lower foundation by adopting underwater epoxy anchoring glue.
The outsourcing steel frame 1 is according to getting water first overall dimension, need satisfy to include former water head inside the frame, adopt land preparation, steel frame 1 includes many spinal branch daggers 1.1 and strengthens hoop 1.2, the structure that many spinal branch daggers 1.1 arrange into is unanimous with the water head overall structure, connect into wholly through annular strengthening hoop 1.2 between many spinal branch daggers, the support column upper end outside is equipped with grid mounting groove 4, the support column top is equipped with the lug 3 that is used for hoist and mount. The steel frame 1 is hoisted in place on water, the outer steel frame is fixed on the lower foundation through connecting bolts, underwater installation is adopted, and due to the fact that the underwater installation and positioning difficulty is high, elliptical holes are adopted in the bolt holes of the steel frame, so that the construction and positioning difficulty is reduced, and the construction error can be controlled. After the steel frame is installed, a construction template is manufactured by adopting a steel plate, and the frame below the water inlet window is poured by adopting underwater pouring concrete, so that the steel frame and the lower foundation (namely the original water inlet head) form a whole.
The steel grating 2 comprises a ring-shaped grating 2.1 on the side surface and a plane grating 2.2 on the top, and the water inlet steel grating is connected with the steel frame by bolts and is arranged in a reserved grating mounting groove 4 on the steel frame. The steel grating is connected with the steel frame by bolts, can be installed on land, and can be installed in water for the second time after the steel frame is fixed.
After the restoration is finished, the peripheral range of the water intake head is subjected to stone throwing protection.
The invention can be used for repairing the top cover of the water taking head under the fresh water condition and also can be used under the seawater condition. In order to adapt to the underwater corrosion condition, the steel frame and the steel grating can be made of common carbon steel under the fresh water condition, and the corrosion prevention adopts a combined corrosion prevention mode of paint and cathode protection; for the seawater condition, the steel frame and the water inlet steel grating are made of duplex stainless steel, and cathode protection is adopted. The steel frame and the steel grating have various anti-corrosion designs, so that the water inlet grating is prevented from being invalid due to corrosion within the design period of the water intake head, and the grating gaps and the grating flow rate passing designs can reduce the damage of the grating to organisms.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. What is not described in detail in this specification is prior art known to those skilled in the art.
Claims (8)
1. A method for repairing a large-diameter water intake head top cover is characterized by comprising the following steps: the external structure is adopted to replace the original water intake head top cover, which comprises the following steps:
1) Prefabricating an outsourced steel frame and a water inlet steel grid; the steel frame comprises a plurality of support columns and reinforcing hoops, the arrangement structure of the support columns is consistent with the appearance structure of the water taking head, and the support columns are connected into a whole through the annular reinforcing hoops;
2) Pouring concrete at the original foundation position of the underwater water intake head to form a lower foundation of the top cover, and embedding connecting bolts in the lower foundation;
3) Transporting the prefabricated steel frame to the upper part of the lower foundation in a hoisting mode, and connecting the steel frame with the lower foundation through pre-buried connecting bolts;
4) After the steel frame is installed, pouring the frame part below the water inlet window on the steel frame in an underwater concrete pouring mode, so that the steel frame and the lower foundation form a whole;
5) And installing the prefabricated steel grating on the top of the steel frame to finish the repair of the water intake head top cover.
2. The method for repairing the top cover of the large-diameter water intake head as claimed in claim 1, wherein the method comprises the following steps: the connecting bolts are buried and fixed in the lower foundation through underwater epoxy anchoring glue.
3. The method for repairing the top cover of the large-diameter water intake head as claimed in claim 1, wherein the method comprises the following steps: the overall dimension of the steel frame meets the requirement of covering the water taking head inside the frame.
4. The method for repairing the top cover of the large-diameter water intake head as claimed in claim 1, wherein the method comprises the following steps: grid mounting grooves are formed in the outer sides of the upper ends of the support columns, and lifting lugs for lifting are arranged at the tops of the support columns.
5. The method for repairing the top cover of the large-diameter water intake head as claimed in claim 1, wherein the method comprises the following steps: the steel grating is connected with the steel frame through bolts.
6. The method for repairing the top cover of the large-diameter water intake head as claimed in claim 1, wherein the method comprises the following steps: the steel grating includes a side ring-type grating and a top planar grating.
7. The method for repairing the top cover of the large-diameter water intake head as claimed in claim 1, wherein the method comprises the following steps: the steel frame and the steel grating are made of carbon steel, and the surfaces of the steel frame and the steel grating are anti-corrosion by adopting an anti-corrosion coating and cathode protection combined mode.
8. The method for repairing the top cover of the large-diameter water intake head as claimed in claim 1, wherein the method comprises the following steps: the steel frame and the steel grating are made of duplex stainless steel, and the surfaces of the steel frame and the steel grating are protected from corrosion in a cathodic protection mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011625025.2A CN112796368B (en) | 2020-12-31 | 2020-12-31 | Repairing method for large-diameter water intake head top cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011625025.2A CN112796368B (en) | 2020-12-31 | 2020-12-31 | Repairing method for large-diameter water intake head top cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112796368A CN112796368A (en) | 2021-05-14 |
| CN112796368B true CN112796368B (en) | 2023-08-18 |
Family
ID=75807665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011625025.2A Active CN112796368B (en) | 2020-12-31 | 2020-12-31 | Repairing method for large-diameter water intake head top cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112796368B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114250825B (en) * | 2021-12-17 | 2023-05-09 | 自然资源部天津海水淡化与综合利用研究所 | Assembled ecological seawater intake head |
Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07171494A (en) * | 1993-11-18 | 1995-07-11 | Nippon Suido Kyokai | Method for executing anticorrosion work on internal surface of concrete structure for city water supply system |
| JPH09177062A (en) * | 1995-12-26 | 1997-07-08 | Nippon Steel Corp | Method of renewing existing channel |
| CN1766242A (en) * | 2005-11-28 | 2006-05-03 | 陈先土 | Construction method for rectangular infiltration channel matched with aquifer in groundwater intake project |
| JP2010265678A (en) * | 2009-05-15 | 2010-11-25 | Yoshinori Tsujimoto | River water intake device |
| CN102086634A (en) * | 2011-01-07 | 2011-06-08 | 广东省电力设计研究院 | Marine underwater assembled water intake and construction method thereof |
| CN202370036U (en) * | 2011-11-24 | 2012-08-08 | 四川顺城化工股份有限公司 | Anti-sundries water-taking head |
| CN103556673A (en) * | 2013-11-12 | 2014-02-05 | 国家***天津海水淡化与综合利用研究所 | Multifunctional sea water taking head part |
| JP2014066084A (en) * | 2012-09-26 | 2014-04-17 | Sogo Co Ltd | Filtering water intake device for water channel side part |
| JP2014066085A (en) * | 2012-09-26 | 2014-04-17 | Sogo Co Ltd | Filtering water intake device for water channel bottom |
| CN103758180A (en) * | 2014-01-03 | 2014-04-30 | 国核电力规划设计研究院 | Protecting device |
| CN105019406A (en) * | 2015-06-16 | 2015-11-04 | 华北水利水电大学 | Water tunnel construction method and water tunnel system |
| CN205088738U (en) * | 2015-09-23 | 2016-03-16 | 中国能源建设集团广东省电力设计研究院有限公司 | Water intaking structure |
| CN205444086U (en) * | 2015-12-24 | 2016-08-10 | 长江勘测规划设计研究有限责任公司 | A water intaking structure for pump station river course |
| CN106120958A (en) * | 2016-05-27 | 2016-11-16 | 中交第航务工程局有限公司 | Combined steel case pedestal water intake structure |
| CN106489321A (en) * | 2016-12-05 | 2017-03-15 | 中国水产科学研究院黑龙江水产研究所 | River Sediment repairs caterpillar chain typec movement second ploughing device |
| JP2017082530A (en) * | 2015-10-30 | 2017-05-18 | ケイコン株式会社 | Coupling installation method for precast circular water channel |
| CN206706895U (en) * | 2017-05-09 | 2017-12-05 | 中国船舶重工集团公司第七二五研究所 | A kind of special seawater water intake of LNG receiving stations |
| CN206768920U (en) * | 2017-04-26 | 2017-12-19 | 连云港连鑫玻璃钢有限公司 | A kind of detachable glass-fiber reinforced plastic grille window device water intake |
| CN108755590A (en) * | 2018-07-24 | 2018-11-06 | 计翔 | A kind of sheet pile shore protection water body exchange detachable anti-filter storehouse |
| CN108867757A (en) * | 2018-07-16 | 2018-11-23 | 中交第三航务工程勘察设计院有限公司 | A kind of prefabricated armored concrete water intaking header structure and its construction method |
| CN209128941U (en) * | 2018-11-01 | 2019-07-19 | 中铁五局集团第二工程有限责任公司 | Steel construction waterwall in a kind of water |
| CN110397114A (en) * | 2019-08-12 | 2019-11-01 | 长江勘测规划设计研究有限责任公司 | A kind of adjustable multilayer water intake and installation method for rivers water intaking |
| CN110565577A (en) * | 2019-09-05 | 2019-12-13 | 湖北久树环境科技有限公司 | Ecological restoration method for channel renovation project |
| CN210711200U (en) * | 2019-08-20 | 2020-06-09 | 荣成市瑞祥生物菌有限公司 | In-situ remediation device for polluted riverbed |
-
2020
- 2020-12-31 CN CN202011625025.2A patent/CN112796368B/en active Active
Patent Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07171494A (en) * | 1993-11-18 | 1995-07-11 | Nippon Suido Kyokai | Method for executing anticorrosion work on internal surface of concrete structure for city water supply system |
| JPH09177062A (en) * | 1995-12-26 | 1997-07-08 | Nippon Steel Corp | Method of renewing existing channel |
| CN1766242A (en) * | 2005-11-28 | 2006-05-03 | 陈先土 | Construction method for rectangular infiltration channel matched with aquifer in groundwater intake project |
| JP2010265678A (en) * | 2009-05-15 | 2010-11-25 | Yoshinori Tsujimoto | River water intake device |
| CN102086634A (en) * | 2011-01-07 | 2011-06-08 | 广东省电力设计研究院 | Marine underwater assembled water intake and construction method thereof |
| CN202370036U (en) * | 2011-11-24 | 2012-08-08 | 四川顺城化工股份有限公司 | Anti-sundries water-taking head |
| JP2014066085A (en) * | 2012-09-26 | 2014-04-17 | Sogo Co Ltd | Filtering water intake device for water channel bottom |
| JP2014066084A (en) * | 2012-09-26 | 2014-04-17 | Sogo Co Ltd | Filtering water intake device for water channel side part |
| CN103556673A (en) * | 2013-11-12 | 2014-02-05 | 国家***天津海水淡化与综合利用研究所 | Multifunctional sea water taking head part |
| CN103758180A (en) * | 2014-01-03 | 2014-04-30 | 国核电力规划设计研究院 | Protecting device |
| CN105019406A (en) * | 2015-06-16 | 2015-11-04 | 华北水利水电大学 | Water tunnel construction method and water tunnel system |
| CN205088738U (en) * | 2015-09-23 | 2016-03-16 | 中国能源建设集团广东省电力设计研究院有限公司 | Water intaking structure |
| JP2017082530A (en) * | 2015-10-30 | 2017-05-18 | ケイコン株式会社 | Coupling installation method for precast circular water channel |
| CN205444086U (en) * | 2015-12-24 | 2016-08-10 | 长江勘测规划设计研究有限责任公司 | A water intaking structure for pump station river course |
| CN106120958A (en) * | 2016-05-27 | 2016-11-16 | 中交第航务工程局有限公司 | Combined steel case pedestal water intake structure |
| CN106489321A (en) * | 2016-12-05 | 2017-03-15 | 中国水产科学研究院黑龙江水产研究所 | River Sediment repairs caterpillar chain typec movement second ploughing device |
| CN206768920U (en) * | 2017-04-26 | 2017-12-19 | 连云港连鑫玻璃钢有限公司 | A kind of detachable glass-fiber reinforced plastic grille window device water intake |
| CN206706895U (en) * | 2017-05-09 | 2017-12-05 | 中国船舶重工集团公司第七二五研究所 | A kind of special seawater water intake of LNG receiving stations |
| CN108867757A (en) * | 2018-07-16 | 2018-11-23 | 中交第三航务工程勘察设计院有限公司 | A kind of prefabricated armored concrete water intaking header structure and its construction method |
| CN108755590A (en) * | 2018-07-24 | 2018-11-06 | 计翔 | A kind of sheet pile shore protection water body exchange detachable anti-filter storehouse |
| CN209128941U (en) * | 2018-11-01 | 2019-07-19 | 中铁五局集团第二工程有限责任公司 | Steel construction waterwall in a kind of water |
| CN110397114A (en) * | 2019-08-12 | 2019-11-01 | 长江勘测规划设计研究有限责任公司 | A kind of adjustable multilayer water intake and installation method for rivers water intaking |
| CN210711200U (en) * | 2019-08-20 | 2020-06-09 | 荣成市瑞祥生物菌有限公司 | In-situ remediation device for polluted riverbed |
| CN110565577A (en) * | 2019-09-05 | 2019-12-13 | 湖北久树环境科技有限公司 | Ecological restoration method for channel renovation project |
Non-Patent Citations (1)
| Title |
|---|
| 国电蚌埠电厂钢制取水头水下施工技术;高创奇;;技术与市场(11);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112796368A (en) | 2021-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112796368B (en) | Repairing method for large-diameter water intake head top cover | |
| CN206234474U (en) | A kind of seabed HDPE pipeline saddle weights | |
| CN114809062A (en) | Integral bottom plate-integral vertical ring combined concrete bearing platform foundation and construction process thereof | |
| KR100531147B1 (en) | The bracket device for using the pc house installation at the footing of bridges | |
| EP3904674B1 (en) | Floating platform for high-power wind turbines | |
| CN110117987B (en) | Running water pump station for black and odorous water body remediation | |
| CN108265686A (en) | A kind of van-type steel blocks dirty drift | |
| CN217580255U (en) | Disassembly-free offshore cast-in-place concrete bearing platform foundation | |
| CN111119223A (en) | Oval multi-cylinder jacket foundation structure | |
| CN109183851B (en) | Underwater installation method of shell type immersed tube | |
| CN213709363U (en) | Reservoir assembled layering water intaking head | |
| CN113981884B (en) | Floating wave-absorbing anti-impact system and application method thereof | |
| CN110593251A (en) | Cylindrical device suitable for soft soil seabed foundation improvement and construction method thereof | |
| CN210684666U (en) | Combined type driven pile for ocean engineering | |
| CN210011851U (en) | Guardrail bar is prevented to desilting ship for hydraulic engineering | |
| CN208649870U (en) | A kind of prefabricated steel and concrete combination beam trestle | |
| CN215335097U (en) | Deep sea discharges diffuser riser fixed bolster | |
| JP2011038247A (en) | Method of constructing mono-pile foundation and joint pipe | |
| CN220977945U (en) | Pile-holding operation platform for offshore pile extension | |
| CN1229160A (en) | Automatic sluice gate with buoyancy programmed control | |
| CN110578320A (en) | flexible anti-collision wall for water area bridge and construction method thereof | |
| CN219732087U (en) | Municipal protection well lid with top reinforced structure | |
| CN217419306U (en) | Centralized drainage and sand collection basket device for bridge | |
| CN216551913U (en) | Pier pile foundation protection structure | |
| CN221118531U (en) | Permanent anti-collision cofferdam for construction of water area bridge pier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |