CN115198809B - Repair structure of flushing pit and construction method for repairing flushing pit - Google Patents
Repair structure of flushing pit and construction method for repairing flushing pit Download PDFInfo
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- CN115198809B CN115198809B CN202210965588.9A CN202210965588A CN115198809B CN 115198809 B CN115198809 B CN 115198809B CN 202210965588 A CN202210965588 A CN 202210965588A CN 115198809 B CN115198809 B CN 115198809B
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- flexible silk
- flushing pit
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 66
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 230000008439 repair process Effects 0.000 title claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 60
- 239000002861 polymer material Substances 0.000 claims abstract description 7
- 239000004575 stone Substances 0.000 claims description 22
- -1 polyethylene Polymers 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 239000000178 monomer Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000002633 protecting effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- 238000009991 scouring Methods 0.000 description 21
- 239000004576 sand Substances 0.000 description 13
- 230000009471 action Effects 0.000 description 8
- 239000011148 porous material Substances 0.000 description 7
- 230000001788 irregular Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000237852 Mollusca Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/06—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against corrosion by soil or water
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/10—Placing gravel or light material under water inasmuch as not provided for elsewhere
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
- E02D27/525—Submerged foundations, i.e. submerged in open water using elements penetrating the underwater ground
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Ocean & Marine Engineering (AREA)
- Revetment (AREA)
Abstract
The invention provides a repair structure of a flushing pit and a repair construction method of the flushing pit, which comprise a plurality of flexible silk-shaped fillers filled in the flushing pit, wherein a counterweight body is additionally arranged in the flexible silk-shaped fillers, the counterweight body is wrapped in the flexible silk-shaped fillers, and the flexible silk-shaped fillers are random silk-shaped entities with compressibility and made of high polymer materials. The construction can adopt a ship throwing mode, and the self weight of the flexible silk type filler with the weight body is utilized to settle in the flushing pit. The invention has the advantages of simple structure, convenient construction, good repairing and protecting effects, ecology and environmental protection and easy popularization.
Description
Technical Field
The invention relates to the field of scour prevention of underwater structures, in particular to a scour pit repairing structure and a scour pit repairing construction method.
Background
Scouring is a common problem in a plurality of engineering fields such as ocean, water transportation, water conservancy, bridges and the like, the existence of underwater structures obviously changes the flow field state of the original water area, strong water flow or high-speed rotating vortex is often generated around the building, so that strong scouring capability is generated, and obvious local scouring pits are formed in the periphery of the structures. Taking the basic form of the pier stud at sea as an example, the existing test and research results show that under the action of natural conditions such as waves, water flow and the like, along the flow direction of the water flow, the water facing side of the pile forms descending flow and horseshoe-shaped vortex, the streamline on the two sides of the pile foundation contracts, wake vortex appears on the back water side of the pile foundation, and the wake vortex possibly diverges and falls off along with the vortex to form complex and changeable three-dimensional flow patterns, the flow patterns of the water flow are extremely turbulent, the shearing capacity of the water flow on the bed surface of the bottom bed and the sediment transport capacity of the pile side are greatly enhanced, and part of sediment is carried by the continuous falling off of the wake vortex and is transported to the downstream, so that obvious local flushing pits are finally formed around the structure. The formation of scour pits will lead to a reduced bearing capacity of the structural foundation, and serious instability of the structure as a whole may result: for example, in bridge engineering, most of destroyed bridges are caused by reduced pier burial depth caused by local scouring of pier foundations; for another example, offshore wind farms have been built in China, and in recent years, scouring phenomena of different degrees basically occur, and the maximum scouring depth of a plurality of pile foundations far exceeds the designed scouring depth, so that the safety of fans is seriously threatened. Taking the silty coast along the coast of Jiangsu as an example, the scouring phenomenon of the offshore wind power structure of a single pile foundation is more common, the foundation scouring depth of a part of engineering single wind power foundation exceeds 10 meters, the scouring range reaches 50 meters, the bearing capacity of the pile foundation structure is obviously reduced, and the engineering potential safety hazard is increased.
To ensure engineering safety, the structure is required to be scoured and repaired. At present, the conventional mode mainly adopts a mode of backfilling stone blocks or sand to fill and recover the scouring pits, and special anti-scouring measures such as bottom protection stone blocks, soft bars and the like are arranged on the scouring pits. According to different forms of the structures, the forms and the sizes of the flushing pits around the structures are quite different, the surrounding flow field conditions are complex and severe, the flushing pits are difficult to repair, and the traditional repair mode has more problems:
the sand particles are tiny, under the action of water flow, the shot form cannot be backfilled and positioned, and the construction subsides after bagging is generally needed. The bagged sand is difficult to implement, if random polishing and filling will lead to messy arrangement among sand bags, pores are large between sand bags and pit walls, channels are provided for water flow flushing, foundation soil cannot be protected well, secondary flushing is easy to cause, pores can be reduced by layered regular building, ship equipment is difficult to be close to a flushing pit and difficult to position due to the influence of vortex water flow near the flushing pit, underwater layered regular building is difficult to realize, and the method is difficult to adapt to various irregular flushing pit forms. The difficulty of the above bagged sand construction can be relieved by adopting the stone block backfilling, but under the action of water flow, the stone block is different in specification and size, the dispersion materials are easy to run off or deviate from the position of a flushing pit in the process of throwing and filling, and the ship machine is difficult to position, so that more backfilled stone blocks are scattered in non-flushing areas around the flushing pit, on one hand, the backfilling engineering quantity is greatly increased, on the other hand, the surrounding pit is surrounded by the stone blocks which are higher than the original mud surface and scattered in disorder, and the form of a peripheral flow field can be continuously changed to form new flushing, so that the flushing range is continuously enlarged. The backfilling engineering quantity of sand and stone fillers is large, the cost of the repairing scheme is high, and the development modes of sand stone materials such as mountain digging, sand digging and the like can also have adverse effects on the environment. In some cases, anti-scouring measures such as bottom protection stone, geotextile or mollusks with certain grading layers are paved on the surface of the filler according to the calculation conditions, so that extra manufacturing cost is increased, and the construction process of the whole repair scheme is more complicated.
In the face of the above situation, a novel mode needs to be searched in the flushing pit repairing process, and the problems existing in the traditional flushing pit repairing mode are solved.
Disclosure of Invention
The invention aims to solve the problem of providing a flushing pit repairing structure and a flushing pit repairing construction method, and overcomes the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: a repair structure of a flushing pit comprises a plurality of flexible silk-shaped fillers filled in the flushing pit, wherein a counterweight body is additionally arranged in the flexible silk-shaped fillers, the counterweight body is wrapped in the flexible silk-shaped fillers, and the flexible silk-shaped fillers are random silk-shaped entities with compressibility;
the flexible silk type filler is made of high polymer materials.
Optionally, the polymer material is polyethylene or polypropylene, and a mixture of the foregoing materials.
Optionally, a leveling body pressed on the flexible silk type filler is further included.
Optionally, the leveling body is a block stone or concrete block.
Optionally, the counterweight body is a block or a monomer of a block stone, or a block soft row formed by connecting the monomers in series.
The construction method for repairing the flushing pit by adopting the repairing structure of the flushing pit adopts a ship throwing mode, the flexible silk type filler is thrown and thrown layer by layer for multiple times, and the self weight of the flexible silk type filler with the weight body is utilized to settle into the flushing pit until the flushing pit is filled.
A construction method for repairing the flushing pit by adopting the repairing structure of the flushing pit comprises the steps of connecting a plurality of flexible silk-shaped fillers in series or in parallel by using ropes, dragging the ropes by using ships, and layering the flexible silk-shaped fillers in the flushing pit until the flushing pit is filled.
Optionally, a single flexible silk-like filler is wrapped with a mesh rope.
Optionally, after the flushing pit is filled, a leveling body is used on the surface to perform proper leveling on the area protruding out of the flushing pit.
The invention has the advantages and positive effects that: high polymer materials such as polyethylene or polypropylene are extruded or drawn into filaments at high temperature, and the filaments are subjected to hot melting, compression, agglomeration and other procedures to form a large-volume flexible wire-disorder filler, the filler is added with a counterweight and then is thrown and filled into a flushing pit, after the pit is filled, a leveling body is properly arranged on the surface of a region protruding too high for leveling, and finally, repair and protection of the flushing pit around the structure are realized. The flexible silk type filler forms a porous structure, has the functions of energy dissipation, flow reduction and silt promotion, improves the flow field environment, effectively protects the foundation of a structure and provides living space for benthos. The flexible silk type filler is a flexible structure with compressibility, the external dimension can be flexibly adjusted, the filler is compressed and compacted under the pressure action of the counterweight, and the filler is tightly attached to the external shape of the flushing pit wall and the structure, so that the filler can adapt to various irregular flushing pit forms and flushing pit dimensions. The high molecular polymer materials such as polyethylene or polypropylene are not easy to corrode, have good durability and low cost, and can be used for waste utilization. Compared with the traditional filling sand and stone scouring pit repairing mode, the flexible silk type filling material has the effect of flow reduction protection, the surface layer of the flexible silk type filling material does not need additional anti-scouring measures such as soft drainage, the volume of the flexible silk type filling material is large, the stability of the flexible silk type filling material can be guaranteed under the effect of an attached counterweight body, the throwing and filling construction procedure is greatly reduced, the filling material and secondary scouring in the construction period can be avoided, the construction is more convenient, the consumption of sand, stone and other materials needing large-scale mountain-opening is greatly reduced, the engineering cost is reduced, and the ecological environment is protected.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1-a flexible silk-like filler; 2-a counterweight; 3-pressing the weight body.
Detailed Description
The present invention will be described in further detail with reference to specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two parts. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
As shown in fig. 1, the present invention provides a repair structure of a flushing pit, which comprises a plurality of flexible silk-shaped fillers 1 filled in the flushing pit, wherein the flexible silk-shaped fillers 1 can adopt chemical substances such as polyethylene or polypropylene as raw materials, form filaments through processes such as extrusion or drawing at high temperature, and form a fiber-type bulk entity with certain compressibility after processes such as hot melting, compression, agglomeration and the like. The inside of the entity forms irregular pores, water flows into the pores, under the blocking effect of the wire, complex flow states such as shrinkage, detouring, vortex and the like are generated along the messy and irregular pores, and the water flows into the field where weeds are clustered throughout the ground, so that the energy of the water flow is reduced in the pores, the flow speed of the water flow is reduced, the foundation around the structure is protected from further flushing, the sedimentation of suspended sediment particles in the water is promoted, the underwater flow field environment is improved, the bionic effect is formed, friendly living space is provided for marine benthonic organisms, and the ecological benefit is good; because of the flow reducing and anti-impact effects, compared with the stone block filler, the secondary flushing of the foundation in construction can be further avoided;
in order to increase the dead weight, a counterweight body 2 is additionally arranged in the flexible silk type filler 1, and the counterweight body 2 is wrapped in the flexible silk type filler 1. The flexible silk type filler 1 has self-stabilizing capability under the action of water flow, avoids being floated and taken away by the water flow, has certain strength, can resist the impact force of the water flow and avoids being broken. Compared with the traditional sand and stone filler repairing mode, the flexible silk filler 1 has the functions of stability and anti-flushing, and after the filling and repairing of the flushing pit are completed, anti-flushing measures can be not paved any more, so that the engineering cost is reduced, and the construction procedures are reduced. Of course, under the condition of severe water flow conditions, the anti-scouring measures can be attached to the surface layer of the filler to jointly protect the foundation of the structure, so that the anti-scouring capability of the repairing scheme is further enhanced.
The surface of the flexible silk type filler 1 is paved with a weight body 3 formed by a stone block or a concrete block.
Under the pressure action of the internal counterweight body 2, the pores between the flexible silk type filler 1 and the pit wall of the flushing pit are compressed and compacted, so that the flexible silk type filler 1 is in close contact with the flushing pit wall, and the flushing pit can adapt to various irregular flushing pit forms. Compared with the block stone, the flexible silk type filler 1 has larger volume, and the throwing and filling times are far smaller than those of filling with the block stone when filling and repairing the flushing pit, so that the construction steps are greatly simplified, and the modification efficiency is improved. In addition, the large-volume flexible silk type filler 1 is irregular in shape, the overall dimension can be flexibly adjusted, and the size of the flushing pit with different sizes can be adapted. The invention has more advantages compared with the traditional sand and stone filler repairing mode in the face of scouring pits and buildings with individual shapes and different sizes.
The counterweight body 2 can be a block or a monolithic body of stone, or can be a block soft row formed by connecting the monolithic bodies in series.
The repairing construction mode of the flushing pit is as follows: the construction can be carried out by adopting ship throwing, under the action of the counterweight body 2, the large-volume flexible silk type filler 1 can sink into the scouring pit automatically, and the self stability of the filler under the action of water flow is ensured.
Under the condition that the construction condition is bad, the flexible silk type filler 1 is thrown and thrown independently, the net ropes can be wrapped around the flexible silk type filler 1, so that the integrity of the single flexible silk type filler 1 is better, the single flexible silk type filler 1 is not easy to scatter, the flexible silk type filler 1 is dragged into a pit by the ropes, and the throwing and filling positioning precision is ensured. The construction can adopt layering and repeated throwing and filling, and a plurality of flexible silk type fillers 1 can be connected together in series and parallel by ropes for paving and arranging construction.
The foregoing describes the embodiments of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (9)
1. A repair structure of a flushing pit is characterized in that: the method comprises the steps of filling a flushing pit with a plurality of flexible silk-shaped fillers, wherein a counterweight body is additionally arranged in the flexible silk-shaped fillers, the counterweight body is wrapped in the flexible silk-shaped fillers, and the flexible silk-shaped fillers are random silk-shaped entities with compressibility;
the flexible silk type filler is made of high polymer materials.
2. The repair structure of the flushing pit according to claim 1, wherein: the high polymer material is polyethylene or polypropylene, and a mixture of the materials.
3. The repair structure of a scour pit according to claim 1 or 2, characterized in that: the device also comprises a leveling body pressed on the flexible silk type filler.
4. A repair structure for a scour pit according to claim 3, wherein: the leveling body is a block stone or a concrete block.
5. The repair structure of the flushing pit according to claim 1, wherein: the weight body is a block or a monomer of a block stone, or a block soft row formed by connecting the monomers in series.
6. A construction method for repairing a scour pit by using the scour pit repairing structure according to any one of claims 1 to 5, characterized in that: and (3) adopting a ship throwing mode to throw a plurality of flexible silk type fillers in a layered and repeated manner, and utilizing the dead weight of the flexible silk type fillers with the weight bodies inside to settle into the flushing pit until the flushing pit is filled.
7. The construction method according to claim 6, wherein: and (3) connecting a plurality of flexible silk-shaped fillers in series or in parallel by using ropes, dragging the ropes by using a ship, and layering the flexible silk-shaped fillers in the flushing pits until the flushing pits are filled.
8. The construction method according to claim 7, wherein: and wrapping the single flexible silk type filler by using a net rope.
9. The construction method according to any one of claims 6 to 8, wherein: after the flushing pit is filled, the surface of the area protruding beyond the flushing pit is properly leveled by a leveling body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210965588.9A CN115198809B (en) | 2022-08-12 | 2022-08-12 | Repair structure of flushing pit and construction method for repairing flushing pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210965588.9A CN115198809B (en) | 2022-08-12 | 2022-08-12 | Repair structure of flushing pit and construction method for repairing flushing pit |
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| Publication Number | Publication Date |
|---|---|
| CN115198809A CN115198809A (en) | 2022-10-18 |
| CN115198809B true CN115198809B (en) | 2024-03-15 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892673A (en) * | 2010-07-01 | 2010-11-24 | 宝钢工程技术集团有限公司 | Erosion protection processing method for offshore wind turbine foundation |
| CN102297289A (en) * | 2011-08-08 | 2011-12-28 | 胜利油田龙玺石油工程服务有限责任公司 | Method for treating suspension of submarine pipeline by covering of bionic aquatic weeds |
| CA2898649A1 (en) * | 2013-02-18 | 2014-08-21 | Swan Net-Gundry Limited | A scour remediation and mitigation apparatus |
| CN205822279U (en) * | 2016-07-25 | 2016-12-21 | 福建永福电力设计股份有限公司 | A kind of marine structure anti-scouring system |
| CN208219676U (en) * | 2018-04-09 | 2018-12-11 | 北京华夏绿洲生态环境工程有限公司 | A kind of ecological slope protection structure |
| CN215052630U (en) * | 2021-02-05 | 2021-12-07 | 新乡黄河河务局原阳黄河河务局 | Lead wire mesh and geotextile composite earth-rock overlong pillow root fixing structure for yellow river emergency |
-
2022
- 2022-08-12 CN CN202210965588.9A patent/CN115198809B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892673A (en) * | 2010-07-01 | 2010-11-24 | 宝钢工程技术集团有限公司 | Erosion protection processing method for offshore wind turbine foundation |
| CN102297289A (en) * | 2011-08-08 | 2011-12-28 | 胜利油田龙玺石油工程服务有限责任公司 | Method for treating suspension of submarine pipeline by covering of bionic aquatic weeds |
| CA2898649A1 (en) * | 2013-02-18 | 2014-08-21 | Swan Net-Gundry Limited | A scour remediation and mitigation apparatus |
| CN205822279U (en) * | 2016-07-25 | 2016-12-21 | 福建永福电力设计股份有限公司 | A kind of marine structure anti-scouring system |
| CN208219676U (en) * | 2018-04-09 | 2018-12-11 | 北京华夏绿洲生态环境工程有限公司 | A kind of ecological slope protection structure |
| CN215052630U (en) * | 2021-02-05 | 2021-12-07 | 新乡黄河河务局原阳黄河河务局 | Lead wire mesh and geotextile composite earth-rock overlong pillow root fixing structure for yellow river emergency |
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| CN115198809A (en) | 2022-10-18 |
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