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Ecological grids filled with stones in advance are placed under and around the building to provide support and create suitable conditions for protection.Under the project, gabion mesh mats were placed over pre-filled stone and underwater structures to resist erosion.
The ecological grid mats are pre-filled with stones, placed on the pontoon, and assembled using a gantry crane.After the barge reaches the top of the pipeline, the gabion mesh pad is lowered into the water using a crane, and is finally placed in the appropriate position with the help of divers.
The grid structure steel wires are highly galvanized and wrapped with PVC material, so that the grid's designed service life will be more than 50 years.
The pre-filled grid structure can reduce underwater construction. All grids are assembled and filled with stones on the construction site and installed directly underwater, thus speeding up construction.
The grid structure provides protection for the pipeline when encountering accidental effects, such as reducing the length of anchorage of a ship and preventing the impact of anchorage on the pipeline.
Not long after the gabion structure was installed underwater, plants appeared in the gaps between the mesh rocks.The grid structure is beneficial to the underwater ecological environment.
Gabion mesh is mechanically woven from low-carbon steel wires with high corrosion resistance, high strength and ductility or PVC-coated steel wires. The box-shaped structure made of this mesh is a gabion.The diameter of the mild steel wire used varies according to engineering design requirements according to ASTM and EN standards.Generally between 2.0-4.0mm, the tensile strength of the gabion mesh steel wire is not less than 38kg/m2, the weight of the metal coating is generally higher than 245g/m2, and the edge line diameter of the gabion mesh is generally larger than the diameter of the network cable.The length of the twisted part of the double wire shall not be less than 50mm to ensure that the metal coating and PVC coating of the twisted part of the steel wire are not damaged.
Production Process:
Raw material selection (wire rod) - cold drawing/galvanizing/plastic coating - machine weaving - manual shearing and assembly - product inspection - packaging and transportation - installation and maintenance
● Preparation before installation and construction
Before installing and constructing gabion nets for marine projects, sufficient preparations must be made.First, study the construction drawings in detail to clarify the installation location and quantity.Secondly, check the environmental conditions at the construction site to ensure the safety and accessibility of the construction area.At the same time, prepare the required construction equipment and materials, such as handling equipment, stones, gabion nets and connectors, and ensure that their quality and quantity meet construction needs.
● Positioning and measurement
In marine engineering, precise positioning and accurate measurement are the keys to ensuring the quality of gabion installation.According to the construction drawings and design requirements, use appropriate measuring tools to carry out positioning and mark the actual installation location.At the same time, necessary measurement work is carried out, such as measuring water depth, tidal velocity, etc., to understand the characteristics and limitations of the construction environment.
● Gabion mesh assembly and placement
The assembly and placement of gabion nets should be carried out in accordance with the design drawings and specifications.First, check the integrity and quality of the gabion net to ensure there is no damage or deformation. Then, assemble it according to the instructions of the drawing, ensuring that each component is correctly connected and fixed.During the placement process, attention should be paid to keeping the gabion net stable and stable to prevent it from shifting or tilting due to the influence of tides or wind waves.
● Stone selection and filling
The selection and filling of stone materials are crucial to the stability and protective effect of the gabion net.When selecting stone materials, priority should be given to materials that are hard, wear-resistant, and corrosion-resistant to ensure the durability of the gabion net.When filling stones, the principle of layered filling should be followed to ensure that each layer of stones is evenly distributed and tightly compacted.At the same time, avoid stones that are too large or too small to avoid affecting the stability and protective effect of the gabion net.
● Binding and fixing techniques
The binding and fixing of gabion nets are key steps to ensure the quality of installation. During the binding process, appropriate binding materials and methods should be used to ensure that all parts of the gabion nets are firmly connected.At the same time, pay attention to the tightness and uniformity of the binding to avoid being too tight or too loose.When fixing the gabion net, the appropriate fixing method should be selected according to the actual situation, such as using anchor chains, pile foundations and other fixing facilities to ensure that the gabion net remains stable under water flow.
● Construction safety and environmental protection
During the installation and construction process of marine engineering gabion nets, safety and environmental protection must be highly valued.Obvious safety warning signs should be set up at the construction site, construction workers should wear safety protective equipment and strictly abide by safe operating procedures.At the same time, on-site supervision will be strengthened to ensure safety and stability during the construction process.In addition, pay attention to environmental protection issues to avoid pollution and damage during the construction process, such as controlling noise and reducing waste emissions.
● Regular inspection and maintenance
Marine engineering gabion nets require regular inspection and maintenance during use. Periodic inspections can promptly detect possible problems with the gabion nets, such as damage, deformation, etc., and take corresponding repair measures. At the same time, regular maintenance can keep the gabion nets in good condition. The integrity and protective effect of the gabion net can be extended to extend its service life. Maintenance includes cleaning debris and algae on the gabion net, checking fixed facilities, etc.
● Emergency treatment and repair
During the installation and use of marine engineering gabion nets, you may encounter some emergencies, such as strong winds, huge waves and other natural disasters.In these cases, emergency measures need to be taken to ensure the safety and stability of the gabion net.At the same time, any problems such as damage or deformation should be repaired in time to avoid the problem from expanding and affecting the safety and protection effect of the overall structure.
In summary, the installation, construction and maintenance of marine gabion nets require comprehensive consideration of multiple aspects. From pre-construction preparation to regular inspection and maintenance, specifications and standards need to be strictly observed to ensure construction quality and project safety.At the same time, we will strengthen safety management and environmental protection work at the construction site to reduce the impact on the environment.
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Ecological grids filled with stones in advance are placed under and around the building to provide support and create suitable conditions for protection.Under the project, gabion mesh mats were placed over pre-filled stone and underwater structures to resist erosion.
The ecological grid mats are pre-filled with stones, placed on the pontoon, and assembled using a gantry crane.After the barge reaches the top of the pipeline, the gabion mesh pad is lowered into the water using a crane, and is finally placed in the appropriate position with the help of divers.
The grid structure steel wires are highly galvanized and wrapped with PVC material, so that the grid's designed service life will be more than 50 years.
The pre-filled grid structure can reduce underwater construction. All grids are assembled and filled with stones on the construction site and installed directly underwater, thus speeding up construction.
The grid structure provides protection for the pipeline when encountering accidental effects, such as reducing the length of anchorage of a ship and preventing the impact of anchorage on the pipeline.
Not long after the gabion structure was installed underwater, plants appeared in the gaps between the mesh rocks.The grid structure is beneficial to the underwater ecological environment.
Gabion mesh is mechanically woven from low-carbon steel wires with high corrosion resistance, high strength and ductility or PVC-coated steel wires. The box-shaped structure made of this mesh is a gabion.The diameter of the mild steel wire used varies according to engineering design requirements according to ASTM and EN standards.Generally between 2.0-4.0mm, the tensile strength of the gabion mesh steel wire is not less than 38kg/m2, the weight of the metal coating is generally higher than 245g/m2, and the edge line diameter of the gabion mesh is generally larger than the diameter of the network cable.The length of the twisted part of the double wire shall not be less than 50mm to ensure that the metal coating and PVC coating of the twisted part of the steel wire are not damaged.
Production Process:
Raw material selection (wire rod) - cold drawing/galvanizing/plastic coating - machine weaving - manual shearing and assembly - product inspection - packaging and transportation - installation and maintenance
● Preparation before installation and construction
Before installing and constructing gabion nets for marine projects, sufficient preparations must be made.First, study the construction drawings in detail to clarify the installation location and quantity.Secondly, check the environmental conditions at the construction site to ensure the safety and accessibility of the construction area.At the same time, prepare the required construction equipment and materials, such as handling equipment, stones, gabion nets and connectors, and ensure that their quality and quantity meet construction needs.
● Positioning and measurement
In marine engineering, precise positioning and accurate measurement are the keys to ensuring the quality of gabion installation.According to the construction drawings and design requirements, use appropriate measuring tools to carry out positioning and mark the actual installation location.At the same time, necessary measurement work is carried out, such as measuring water depth, tidal velocity, etc., to understand the characteristics and limitations of the construction environment.
● Gabion mesh assembly and placement
The assembly and placement of gabion nets should be carried out in accordance with the design drawings and specifications.First, check the integrity and quality of the gabion net to ensure there is no damage or deformation. Then, assemble it according to the instructions of the drawing, ensuring that each component is correctly connected and fixed.During the placement process, attention should be paid to keeping the gabion net stable and stable to prevent it from shifting or tilting due to the influence of tides or wind waves.
● Stone selection and filling
The selection and filling of stone materials are crucial to the stability and protective effect of the gabion net.When selecting stone materials, priority should be given to materials that are hard, wear-resistant, and corrosion-resistant to ensure the durability of the gabion net.When filling stones, the principle of layered filling should be followed to ensure that each layer of stones is evenly distributed and tightly compacted.At the same time, avoid stones that are too large or too small to avoid affecting the stability and protective effect of the gabion net.
● Binding and fixing techniques
The binding and fixing of gabion nets are key steps to ensure the quality of installation. During the binding process, appropriate binding materials and methods should be used to ensure that all parts of the gabion nets are firmly connected.At the same time, pay attention to the tightness and uniformity of the binding to avoid being too tight or too loose.When fixing the gabion net, the appropriate fixing method should be selected according to the actual situation, such as using anchor chains, pile foundations and other fixing facilities to ensure that the gabion net remains stable under water flow.
● Construction safety and environmental protection
During the installation and construction process of marine engineering gabion nets, safety and environmental protection must be highly valued.Obvious safety warning signs should be set up at the construction site, construction workers should wear safety protective equipment and strictly abide by safe operating procedures.At the same time, on-site supervision will be strengthened to ensure safety and stability during the construction process.In addition, pay attention to environmental protection issues to avoid pollution and damage during the construction process, such as controlling noise and reducing waste emissions.
● Regular inspection and maintenance
Marine engineering gabion nets require regular inspection and maintenance during use. Periodic inspections can promptly detect possible problems with the gabion nets, such as damage, deformation, etc., and take corresponding repair measures. At the same time, regular maintenance can keep the gabion nets in good condition. The integrity and protective effect of the gabion net can be extended to extend its service life. Maintenance includes cleaning debris and algae on the gabion net, checking fixed facilities, etc.
● Emergency treatment and repair
During the installation and use of marine engineering gabion nets, you may encounter some emergencies, such as strong winds, huge waves and other natural disasters.In these cases, emergency measures need to be taken to ensure the safety and stability of the gabion net.At the same time, any problems such as damage or deformation should be repaired in time to avoid the problem from expanding and affecting the safety and protection effect of the overall structure.
In summary, the installation, construction and maintenance of marine gabion nets require comprehensive consideration of multiple aspects. From pre-construction preparation to regular inspection and maintenance, specifications and standards need to be strictly observed to ensure construction quality and project safety.At the same time, we will strengthen safety management and environmental protection work at the construction site to reduce the impact on the environment.
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