CN111139785A - Water-filled type rubber dam flushing and sand discharging system for preventing silt behind high-pile wharf - Google Patents
Water-filled type rubber dam flushing and sand discharging system for preventing silt behind high-pile wharf Download PDFInfo
- Publication number
- CN111139785A CN111139785A CN202010038965.5A CN202010038965A CN111139785A CN 111139785 A CN111139785 A CN 111139785A CN 202010038965 A CN202010038965 A CN 202010038965A CN 111139785 A CN111139785 A CN 111139785A
- Authority
- CN
- China
- Prior art keywords
- water
- rubber dam
- filled rubber
- filled
- dam
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 137
- 238000007599 discharging Methods 0.000 title claims abstract description 16
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 14
- 239000004576 sand Substances 0.000 title abstract description 8
- 238000000034 method Methods 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 2
- 230000009182 swimming Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000000630 rising effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
-
- 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
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
- E02B3/023—Removing sediments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/005—Deformable barrages or barrages consisting of permanently deformable elements, e.g. inflatable, with flexible walls
-
- 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
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a water-filled rubber dam sand flushing and discharging system for preventing silt behind a high-pile wharf. The invention utilizes the portability of the water-filled rubber dam, applies the concept of water-restraining and sand-flushing, arranges the water-filled rubber dam behind the wharf, and fills water into the rubber dam through the water pump arranged on the seawall at the rear to achieve the effect of the traditional dam. After the work is finished, the dam bag can be collapsed through gradual drainage, and the dam bag is recycled. The invention solves the problems of silt back-silting and construction inconvenience and the like commonly existing behind the wharf.
Description
Technical Field
The invention relates to a device for preventing silt of underwater silt behind a wharf, in particular to a water-filled rubber dam sand flushing and discharging system for preventing silt behind a high-pile wharf.
Background
At present, the traditional methods for solving the problem of silt back-silting at the rear of a wharf include a diversion embankment silt-preventing method, a cutter suction dredger silt-clearing method, a drag suction dredger silt-clearing method, a ship-dragging dredging method and the like. The diversion dike sand control method mainly comprises the steps of enclosing a wharf by an enclosing dike, changing the flow direction of a tidal field and blocking silt outside the wharf, but the method is only suitable for the initial construction stage of the wharf, is not suitable for the constructed wharf, needs to occupy a large sea area, and is high in construction cost. The other three methods all require the use of a dredger, but work can only be carried out by additionally assembling smaller vessels, since the foundation piles of the wharf are relatively dense and some wharfs still do not meet the height requirement of the dredger for entering behind the wharf under low tide. For wharfs with serious rear silting or large rear range, the method consumes a large amount of manpower, material resources and financial resources, can not solve the problems fundamentally, and silt is desilted again after a period of time, and is required to be desilted again.
The conventional method is generally used for dredging at regular intervals, and dredging treatment needs to be carried out again at intervals, so that the problem of back dredging behind a wharf cannot be solved well and fundamentally. Therefore, it is urgent to design a novel system for fundamentally solving the problem of silt back-silting behind the wharf.
Disclosure of Invention
Aiming at the problems of the conventional method for dredging at the rear of a wharf, such as the need of regular dredging, the consumption of a large amount of manpower, material resources and financial resources, long dredging time, inconvenience in construction and the like, the invention provides a water-filled type rubber dam flushing and sand-discharging system which is applied to the rear of a built wharf berth to realize flushing and discharging effects on silt in the rising and falling tide processes. This rubber dam washes sand discharging system not only can realize the washing away of near silt of depositing of pier back edge, and the structural arrangement is simple and convenient moreover, can dismantle after accomplishing the operation.
In order to realize the purpose, the invention is realized by the following technical scheme:
a water-filled rubber dam sand flushing and discharging system for preventing silting behind a high-pile wharf comprises an anchor rod, a bottom plate, a fixed anchor, a water-filled rubber dam, a water-filled pipeline, a water pressure gauge, a water-filled valve and a water pump;
the anchor rod is driven into the bottom bed and is used for bearing the fluid force borne by the water-filled rubber dam; the bottom plate is used for connecting the anchor rod and the fixed anchor; one end of the water-filled rubber dam is connected with the bottom plate through a fixed anchor, and the fluid force borne by the water-filled rubber dam is transferred to the anchor rod; the other end of the water-filled rubber dam is connected with a water pump arranged on a sea wall at the rear through a water filling pipeline, and water filling expansion can be realized to increase the flow velocity of water flow near the top of the water-filled rubber dam.
In the above technical solution, further, the anchor rod uses the water-filled rubber dam as a symmetry axis, and two anchor rods are respectively arranged on two sides of the anchor rod and are respectively used for resisting fluid force applied to the water-filled rubber dam during flood tide and flood tide.
Furthermore, the bottom plate is rigidly connected with the anchor rod, and the bottom plate is also provided with a ring buckle for connecting and fixing the anchor.
Furthermore, the water pressure gauge is arranged on the water filling pipeline and used for monitoring the water pressure in the water filling type rubber dam.
Furthermore, the water filling valve is arranged on the water filling pipeline and used for controlling the processes of water filling and water discharging.
The design principle of the invention is as follows:
according to the invention, by the water-filled rubber dam arranged behind the wharf and by applying the concept of water-restraining and sand-flushing, the water passing section area of the coastal flow is reduced in the process of tide rising and falling, so that the flow velocity of water flow between the top of the water-filled rubber dam and the pile foundation at the rear edge of the wharf is increased, and the scouring of sediment on the bottom bed is realized.
The device of the invention has the beneficial effects that:
(1) and (4) economy. The device selects the rubber dam as the carrier, the raw materials are easy to obtain and transport, and the investment cost is low compared with the traditional reinforced concrete structure.
(2) And (4) portability. The device can be arranged at a place needing silt prevention, and after the operation is finished, the water in the water-filled rubber dam can be gradually discharged through the water filling pipeline for disassembly.
(3) And (4) safety. The water-filled rubber dam with the main structure of the device is connected with the fixing module through the fixing anchor, so that the water-filled rubber dam is not obviously displaced, and potential safety hazards to the wharf knot are avoided.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention in use behind a high pile pier;
FIG. 2 is a schematic view of the connection of the tie-down anchor of the present invention to a base plate;
wherein: 1. an anchor rod; 2. a base plate; 3. fixing an anchor; 4. a water-filled rubber dam; 5. a water filling pipeline; 6. a water pressure gauge; 7. a water filling valve; 8. and (4) a water pump.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings:
fig. 1 shows a sand flushing and discharging system of a water-filled rubber dam for preventing silting behind a high-pile wharf, which comprises an anchor rod 1, a bottom plate 2, a fixed anchor 3, a water-filled rubber dam 4, a water-filled pipeline 5, a water pressure gauge 6, a water-filled valve 7 and a water pump 8. The anchor rod 1 is fixed in the bed, and bottom plate 2 arranges at anchor rod 1 top, and fixed anchor 3 connects bottom plate 2 and fills water formula rubber dam 4, fills water pipe 5 and connects and fill water formula rubber dam 4 and water pump 8, and near water pipe 5 is close to water pump 8 and sets up water pressure gauge 6 and water filling valve 7.
The anchor rod 1 takes the water-filled rubber dam 4 as a symmetry axis, two anchor rods are respectively arranged at two sides and are respectively used for resisting the fluid force borne by the water-filled rubber dam 4 during flood tide and tide fall. The base plate 2 is rigidly connected with the anchor rod 1, and the base plate 2 is also provided with a ring buckle for connecting a fixed anchor 3. The water pressure gauge 6 is arranged on the water filling pipeline 5 and is used for monitoring the water pressure in the water filling type rubber dam 4. The water filling valve 7 is arranged on the water filling pipeline 5 and used for controlling the processes of water filling and water discharging.
Fig. 2 is a schematic view showing the connection between the buckle on the bottom plate 2 and the anchor 3.
The embodiment of the invention utilizes the portability of the water-filled rubber dam, applies the concept of water-restraining and sand-washing, arranges the water-filled rubber dam with the length being half of the length of the approach bridge at the rear of the wharf, the top of the water-filled rubber dam is positioned at the midpoint of the approach bridge, the other end of the water-filled rubber dam is connected with the seawall, and the water-filled rubber dam is filled by the water pump arranged on the seawall at the rear, thereby achieving the effect of the traditional dam. Because the dam body reduces the area of the water passing section, the flow velocity of water flow in the area between the dam top of the water-filled rubber dam and the rear edge of the wharf is increased, the scouring effect is generated on the bottom bed, and the lateral soil pressure borne by the pile foundation is reduced. After the work is finished, the dam bag can be collapsed through gradual drainage, and the dam bag is recycled. The invention solves the problems of silt back-silting and construction inconvenience and the like commonly existing behind the wharf.
The concrete construction steps of the invention are as follows:
the anchor rods 1 with the bottom plates 2 at the tops are driven into a bottom bed behind a wharf needing silt prevention, two anchor rods 1 are respectively arranged on two sides of the water-filled rubber dam 4 according to the two incoming flow directions of rising tide and falling tide, the length of the fixed anchor 3 is obtained through calculation, and the bottom plates 2 are connected with the water-filled rubber dam 4 in the non-water-filled state.
A water filling pipeline 5 and a water pump 8 are connected to the sea wall behind the wharf, and a water pressure gauge 6 and a water filling valve 7 are arranged near the water filling pipeline 5 and the water pump 8.
Connecting the water-filled rubber dam 4 and the water-filled pipeline 5 in the non-water-filled state, opening the water-filled valve 7, filling water into the water-filled rubber dam 4 through the water pump 8, observing the number indicated in the water pressure gauge 6, and closing the water-filled valve 7 and the water pump 8 after the number indicated is stable.
And after the operation is finished, opening the water filling valve 7, adjusting the water pump 8 to pump water outwards, gradually pumping out the water body in the water filling type rubber dam 4, disconnecting the fixed anchor 3 from the water filling type rubber dam 4 after the water body is completely pumped out, and recovering the water filling type rubber dam 4.
The above embodiments are intended to illustrate the present invention, and not to limit the scope of the present invention, and various modifications and adaptations made by the above embodiments are within the scope of the present invention.
Claims (5)
1. The utility model provides a fill ability of swimming rubber dam and dash sediment system that is used for high stake pier rear to prevent becoming silted up which characterized in that: the water filling type rubber dam comprises an anchor rod (1), a bottom plate (2), a fixed anchor (3), a water filling type rubber dam (4), a water filling pipeline (5), a water pressure gauge (6), a water filling valve (7) and a water pump (8);
the anchor rod (1) is driven into the bottom bed and is used for bearing the fluid force borne by the water-filled rubber dam (4); the bottom plate (2) is used for connecting the anchor rod (1) with the fixed anchor (3); one end of the water-filled rubber dam (4) is connected with the bottom plate (2) through a fixed anchor (3) to transmit the fluid force borne by the water-filled rubber dam to the anchor rod (1); the other end of the water-filled rubber dam (4) is connected with a water pump (8) arranged on a seawall at the rear through a water-filled pipeline (5), and the water-filled expansion can be realized to increase the flow speed of water flow near the dam crest of the water-filled rubber dam (3).
2. The water-filled rubber dam sand-flushing and discharging system for preventing silting behind a high-piled wharf as claimed in claim 1, wherein: the anchor rod (1) takes the water-filled rubber dam (4) as a symmetry axis, two anchor rods are respectively arranged at two sides and are respectively used for resisting the fluid force borne by the water-filled rubber dam (4) during flood tide and tide fall.
3. The water-filled rubber dam sand-flushing and discharging system for preventing silting behind a high-piled wharf as claimed in claim 1, wherein: the base plate (2) is rigidly connected with the anchor rod (1), and the base plate (2) is also provided with a ring buckle for connecting the fixed anchor (3).
4. The water-filled rubber dam sand-flushing and discharging system for preventing silting behind a high-piled wharf as claimed in claim 1, wherein: the water pressure gauge (6) is arranged on the water filling pipeline (5) and is used for monitoring the water pressure in the water filling type rubber dam (4).
5. The water-filled rubber dam sand-flushing and discharging system for preventing silting behind a high-piled wharf as claimed in claim 1, wherein: the water filling valve (7) is arranged on the water filling pipeline (5) and is used for controlling the processes of water filling and water discharging.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010038965.5A CN111139785A (en) | 2020-01-14 | 2020-01-14 | Water-filled type rubber dam flushing and sand discharging system for preventing silt behind high-pile wharf |
| PCT/CN2020/128527 WO2021143329A1 (en) | 2020-01-14 | 2020-11-13 | Water-filling type rubber dam sand flushing and discharging system for preventing silt behind high piled wharf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010038965.5A CN111139785A (en) | 2020-01-14 | 2020-01-14 | Water-filled type rubber dam flushing and sand discharging system for preventing silt behind high-pile wharf |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111139785A true CN111139785A (en) | 2020-05-12 |
Family
ID=70524981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010038965.5A Pending CN111139785A (en) | 2020-01-14 | 2020-01-14 | Water-filled type rubber dam flushing and sand discharging system for preventing silt behind high-pile wharf |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111139785A (en) |
| WO (1) | WO2021143329A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021143329A1 (en) * | 2020-01-14 | 2021-07-22 | 浙江大学 | Water-filling type rubber dam sand flushing and discharging system for preventing silt behind high piled wharf |
| CN116024939A (en) * | 2023-01-03 | 2023-04-28 | 浙江大学 | Construction method of portable rubber dam diversion and silt reduction equipment suitable for water area behind wharf |
| CN116447429A (en) * | 2023-06-20 | 2023-07-18 | 菏泽嘉泽电子材料有限公司 | Drainage device for rush repair of gas pipeline and use method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2159863A (en) * | 1984-05-07 | 1985-12-11 | Ralph Haber Hoyeck | Flexible wall dams |
| KR200364497Y1 (en) * | 2004-07-21 | 2004-10-19 | 주식회사 유일기연 | Apparatus for pump air into portable of rubber dam |
| CN102134844A (en) * | 2010-01-21 | 2011-07-27 | 孟顺利 | Automatic dredging and desilting system for rubber dam |
| CN104250960A (en) * | 2014-09-11 | 2014-12-31 | 河海大学 | Reservoir silt-preventing laying method |
| CN104532796A (en) * | 2014-12-20 | 2015-04-22 | 天津大学前沿技术研究院有限公司 | Self-controlled type rubber dam with wear-resistant steel plate |
| CN108385604A (en) * | 2018-01-23 | 2018-08-10 | 中冶华天工程技术有限公司 | A kind of inflatable ground sills |
| CN108457237A (en) * | 2018-01-24 | 2018-08-28 | 西北农林科技大学 | A kind of dredging sand discharge dam system's arrangement system and its working method |
| CN109736258A (en) * | 2019-02-02 | 2019-05-10 | 珠江水利委员会珠江水利科学研究院 | The method of sediment prevention siltation |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57178017A (en) * | 1981-04-27 | 1982-11-02 | Bridgestone Corp | Quick falling device for rubber dam |
| JPS5998917A (en) * | 1982-11-30 | 1984-06-07 | Bridgestone Corp | Remover for soil and sand on falling dam |
| CN101545251B (en) * | 2009-03-18 | 2010-12-01 | 云南三环中化化肥有限公司 | Method for storing and getting water by blocking river on natural river course |
| CN202718071U (en) * | 2012-08-31 | 2013-02-06 | 黄河勘测规划设计有限公司 | Barrage structure capable of lowering silt of reservoir area |
| CN203320481U (en) * | 2013-06-19 | 2013-12-04 | 河北省衡水黄河工程橡塑有限公司 | Rubber-dam anchoring device |
| CN111139785A (en) * | 2020-01-14 | 2020-05-12 | 浙江大学 | Water-filled type rubber dam flushing and sand discharging system for preventing silt behind high-pile wharf |
| CN212129032U (en) * | 2020-01-14 | 2020-12-11 | 浙江大学 | Inflatable rubber dam sand flushing and discharging system for preventing silt behind high-pile wharf |
-
2020
- 2020-01-14 CN CN202010038965.5A patent/CN111139785A/en active Pending
- 2020-11-13 WO PCT/CN2020/128527 patent/WO2021143329A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2159863A (en) * | 1984-05-07 | 1985-12-11 | Ralph Haber Hoyeck | Flexible wall dams |
| KR200364497Y1 (en) * | 2004-07-21 | 2004-10-19 | 주식회사 유일기연 | Apparatus for pump air into portable of rubber dam |
| CN102134844A (en) * | 2010-01-21 | 2011-07-27 | 孟顺利 | Automatic dredging and desilting system for rubber dam |
| CN104250960A (en) * | 2014-09-11 | 2014-12-31 | 河海大学 | Reservoir silt-preventing laying method |
| CN104532796A (en) * | 2014-12-20 | 2015-04-22 | 天津大学前沿技术研究院有限公司 | Self-controlled type rubber dam with wear-resistant steel plate |
| CN108385604A (en) * | 2018-01-23 | 2018-08-10 | 中冶华天工程技术有限公司 | A kind of inflatable ground sills |
| CN108457237A (en) * | 2018-01-24 | 2018-08-28 | 西北农林科技大学 | A kind of dredging sand discharge dam system's arrangement system and its working method |
| CN109736258A (en) * | 2019-02-02 | 2019-05-10 | 珠江水利委员会珠江水利科学研究院 | The method of sediment prevention siltation |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021143329A1 (en) * | 2020-01-14 | 2021-07-22 | 浙江大学 | Water-filling type rubber dam sand flushing and discharging system for preventing silt behind high piled wharf |
| CN116024939A (en) * | 2023-01-03 | 2023-04-28 | 浙江大学 | Construction method of portable rubber dam diversion and silt reduction equipment suitable for water area behind wharf |
| CN116024939B (en) * | 2023-01-03 | 2023-12-19 | 浙江大学 | Construction method of portable rubber dam diversion and silt reduction equipment suitable for water area behind wharf |
| CN116447429A (en) * | 2023-06-20 | 2023-07-18 | 菏泽嘉泽电子材料有限公司 | Drainage device for rush repair of gas pipeline and use method |
| CN116447429B (en) * | 2023-06-20 | 2023-08-25 | 菏泽嘉泽电子材料有限公司 | Drainage device for rush repair of gas pipeline and use method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021143329A1 (en) | 2021-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111139785A (en) | Water-filled type rubber dam flushing and sand discharging system for preventing silt behind high-pile wharf | |
| US8226325B1 (en) | Wave suppressor and sediment collection system | |
| CN101691755A (en) | Method for constructing liquified discarded soil in construction of subaqueous structure | |
| CN101781895A (en) | Method for producing caisson by using floating dock box | |
| CN216108586U (en) | Novel pile foundation scour prevention protective structure | |
| CN113982016A (en) | Novel pile foundation anti-scouring protection structure and construction method thereof | |
| CN203429606U (en) | Sediment retaining bank reconstructed from temporary cofferdam | |
| CN106049351A (en) | Vertical breakwater with function of enabling ships to go alongside through tide | |
| CN101555692B (en) | Dewatering earth-taking construction method for foundation pit on water | |
| CN212129032U (en) | Inflatable rubber dam sand flushing and discharging system for preventing silt behind high-pile wharf | |
| CN103074867B (en) | The bridging method of a kind of erosion control river bottom protection soft raft sudden change place | |
| CN211774063U (en) | Dredging device for hydraulic engineering | |
| CN107587497B (en) | A method of improving hydraulic reclamation flatness | |
| CN114892663A (en) | Self-floating assembly type soil engineering pipe bag filling construction and dirt isolation method | |
| CN106087862A (en) | Multifunctional jetty | |
| CN201339196Y (en) | Caisson for reclaiming fields from the shallow sea | |
| CN104499472B (en) | A kind of water-bag type waterpower rises boat equipment | |
| CN217460578U (en) | Self-floating assembly type filling device for soil engineering pipe bags | |
| CN212077994U (en) | Wing wall caisson permeable structure | |
| CN205116087U (en) | Ecological river bank of ripples formula structure | |
| CN210066630U (en) | Novel movable permeable breakwater | |
| CN219218847U (en) | Energy dissipation sand sedimentation diversion hydraulic construction system for branch river channel | |
| CN215593866U (en) | Combined steel sheet pile structure jetty type wharf | |
| CN220521209U (en) | Automatic silt system of preventing of tidal harbor pond | |
| CN211228348U (en) | Combined sheet pile structure with drainage channel |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200512 |