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The railway reconstruction unit chose gabion retaining walls to protect the railway, and gravity-type ecological grid retaining walls were used for soil slope protection along the railway.The ecological grid structure meets the mechanical properties of the project, has the ability to adapt to foundation deformation, and has good integrity.Filling the gaps between stones is beneficial to the growth of plants, beneficial to the surrounding environment and ecology, and also has the function of reducing noise.
There are several advantages to choosing an eco-grid retaining wall.The gabion structure does not require high foundation, is easy to construct, has fast construction speed and low cost.The ecological grid is permeable and has drainage function, which can protect the soil from being washed away by floods.The internal stone filling is a natural material, which is environmentally friendly and plants can grow in it.
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
● Construction plan formulation
Before the installation and construction of gabion nets in railway projects, a detailed construction plan must be formulated based on construction drawings and actual site conditions.The construction plan should specify the layout, size, quantity, and installation location and sequence of gabion nets.At the same time, factors such as construction time, staffing and equipment selection must be considered to ensure the smooth progress of the construction process.
● Installation basic preparation
The installation foundation of gabion mesh must be solid and flat to meet the requirements of bearing capacity and stability.Before installation, the foundation should be cleaned, leveled and compacted. If the foundation conditions do not meet the requirements, corresponding reinforcement measures must be taken, such as increasing the depth of the foundation, using pile foundations, etc.
● Gabion mesh processing
According to the construction plan, the gabion net is processed.This includes cutting, folding, welding and other processes to ensure that the size of the gabion net is accurate and the structure is firm.At the same time, it is necessary to check the quality of the gabion mesh to ensure that there is no damage or shape inspection.
● Filling gabions layer by layer
After the foundation is ready, fill the gabions layer by layer according to the design plan.The filling stones should be hard and regular-shaped stones to ensure the stability and protective effect of the gabion net.During the filling process, attention should be paid to controlling the filling speed and intensity to avoid damage to the gabion net.At the same time, it is necessary to ensure that each layer of stone is filled evenly and tightly without any gaps.
● Gabion net fixing method
After the gabion net is filled, it needs to be fixed using appropriate fixing methods.Commonly used fixing methods include using iron wires or connectors to connect and fix the gabion mesh to the foundation or adjacent gabion mesh.When fixing, make sure the connection is firm, stable, and able to resist the influence of external factors.
● Regular inspection and maintenance
After the gabion net is installed, regular inspection and maintenance are required.The inspection content includes the integrity of the gabion net, the fastening of the connectors, and the stability of the stone materials.Problems found must be dealt with and repaired in a timely manner, such as replacing damaged mesh, tightening loose connections, etc.At the same time, it is necessary to remove debris and dirt on the gabion net to keep the base clean and beautiful.
● Dealing with damage and loss
During the operation of railway projects, gabion nets may be damaged or lost due to natural disasters or human factors.Damaged gabion nets must be repaired or replaced in time to ensure the integrity and stability of the protective structure.Lost stones must be replenished and fixed in time to prevent holes or collapse in the gabion net.
● Storage and anti-corrosion measures
Unused gabions should be stored in a dry, ventilated area away from moisture and direct sunlight.At the same time, the stored gabion nets should be checked regularly to ensure that they are in good condition.In order to improve the durability of gabion nets, anti-corrosion measures can be taken, such as spraying anti-rust paint or using anti-corrosion materials.
To sum up, the installation, construction and maintenance of railway engineering gabion nets involve multiple links and elements.By formulating a reasonable construction plan, preparing the installation foundation, processing gabion nets, filling and fixing layer by layer, and regular inspection and maintenance, the stability and protective effect of gabion nets in railway projects can be ensured and the safety of railway projects can be improved. Safety and durability.
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The railway reconstruction unit chose gabion retaining walls to protect the railway, and gravity-type ecological grid retaining walls were used for soil slope protection along the railway.The ecological grid structure meets the mechanical properties of the project, has the ability to adapt to foundation deformation, and has good integrity.Filling the gaps between stones is beneficial to the growth of plants, beneficial to the surrounding environment and ecology, and also has the function of reducing noise.
There are several advantages to choosing an eco-grid retaining wall.The gabion structure does not require high foundation, is easy to construct, has fast construction speed and low cost.The ecological grid is permeable and has drainage function, which can protect the soil from being washed away by floods.The internal stone filling is a natural material, which is environmentally friendly and plants can grow in it.
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
● Construction plan formulation
Before the installation and construction of gabion nets in railway projects, a detailed construction plan must be formulated based on construction drawings and actual site conditions.The construction plan should specify the layout, size, quantity, and installation location and sequence of gabion nets.At the same time, factors such as construction time, staffing and equipment selection must be considered to ensure the smooth progress of the construction process.
● Installation basic preparation
The installation foundation of gabion mesh must be solid and flat to meet the requirements of bearing capacity and stability.Before installation, the foundation should be cleaned, leveled and compacted. If the foundation conditions do not meet the requirements, corresponding reinforcement measures must be taken, such as increasing the depth of the foundation, using pile foundations, etc.
● Gabion mesh processing
According to the construction plan, the gabion net is processed.This includes cutting, folding, welding and other processes to ensure that the size of the gabion net is accurate and the structure is firm.At the same time, it is necessary to check the quality of the gabion mesh to ensure that there is no damage or shape inspection.
● Filling gabions layer by layer
After the foundation is ready, fill the gabions layer by layer according to the design plan.The filling stones should be hard and regular-shaped stones to ensure the stability and protective effect of the gabion net.During the filling process, attention should be paid to controlling the filling speed and intensity to avoid damage to the gabion net.At the same time, it is necessary to ensure that each layer of stone is filled evenly and tightly without any gaps.
● Gabion net fixing method
After the gabion net is filled, it needs to be fixed using appropriate fixing methods.Commonly used fixing methods include using iron wires or connectors to connect and fix the gabion mesh to the foundation or adjacent gabion mesh.When fixing, make sure the connection is firm, stable, and able to resist the influence of external factors.
● Regular inspection and maintenance
After the gabion net is installed, regular inspection and maintenance are required.The inspection content includes the integrity of the gabion net, the fastening of the connectors, and the stability of the stone materials.Problems found must be dealt with and repaired in a timely manner, such as replacing damaged mesh, tightening loose connections, etc.At the same time, it is necessary to remove debris and dirt on the gabion net to keep the base clean and beautiful.
● Dealing with damage and loss
During the operation of railway projects, gabion nets may be damaged or lost due to natural disasters or human factors.Damaged gabion nets must be repaired or replaced in time to ensure the integrity and stability of the protective structure.Lost stones must be replenished and fixed in time to prevent holes or collapse in the gabion net.
● Storage and anti-corrosion measures
Unused gabions should be stored in a dry, ventilated area away from moisture and direct sunlight.At the same time, the stored gabion nets should be checked regularly to ensure that they are in good condition.In order to improve the durability of gabion nets, anti-corrosion measures can be taken, such as spraying anti-rust paint or using anti-corrosion materials.
To sum up, the installation, construction and maintenance of railway engineering gabion nets involve multiple links and elements.By formulating a reasonable construction plan, preparing the installation foundation, processing gabion nets, filling and fixing layer by layer, and regular inspection and maintenance, the stability and protective effect of gabion nets in railway projects can be ensured and the safety of railway projects can be improved. Safety and durability.
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