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Lakeshore improvement projects mostly use smooth bank protection. When necessary, short buoy dam bank protection can also be used.Smooth bank protection includes two forms: retaining wall and slope protection.The retaining wall structure generally uses cages with a height of 1m arranged in layers with staggered joints.For rivers with high flow rates, mesh pads should be installed at the lower part. The length of the mesh pads is determined based on the height of the cage and the maximum scour depth.
When the friction coefficient of the soil is relatively small or the active earth pressure is large, the cage can be tilted backwards, which can effectively reduce the adverse effects of the active earth pressure on the wall. However, this tilted structure is more complicated during construction.
When the height of the retaining wall is relatively high, the graded retaining wall can also be used, which can save the amount of engineering materials, is more economical, and is more beautiful than the pure gravity type.
When the water level is relatively high or it is during the flood fighting and rescue period, and it is not suitable for cofferdam construction, the mesh pads at the bottom of the retaining wall can be changed to mesh bags or large stones to create a more favorable construction environment.
The slope protection structure includes two parts: the foot protection below the low water level and the slope protection above the low water level.The thickness of the mesh pad is determined according to the speed of the water flow to achieve optimal safety and economy. Generally, a mesh pad with a thickness of 0.2m-0.5m is used.The slope ratio is generally 1:1.5-3, which can be determined based on the internal friction coefficient of the soil and the friction coefficient between the soil and the mesh pad.
If the river erosion is particularly serious or the requirements for the river are relatively high, full-section protection can be used, which has better effects on safety and landscape effects.
Of course, retaining walls and slope protection can also be combined to form a duplex section.
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
● Preliminary preparation and evaluation
Before installing gabion nets in river projects, sufficient preliminary preparation and evaluation must be carried out.This includes collecting and analyzing basic data such as the topography, hydrological conditions, and geological structure of the river, and formulating construction plans and processes.At the same time, it is necessary to evaluate the environmental conditions of the construction area to ensure that construction activities will not cause adverse effects on the ecological environment.
● Construction Process Overview
The installation and construction process of gabion nets for river projects mainly includes cage assembly, positioning, stone filling, compaction, cage connection and reinforcement, etc.During the construction process, the design plan and operating procedures should be strictly followed to ensure construction quality and progress.
● Cage assembly and positioning
According to the requirements of the design drawings, assemble the mesh pieces of the gabion net to form a complete cage.During the assembly process, it is necessary to pay attention to the firm and smooth connection between the mesh panels, and no distortion or misalignment.After the cage is assembled, it is positioned at a designated location in the river according to the construction plan to ensure that the position of the cage is accurate and stable.
● Stone filling and compaction
Stone filling is a key link in the installation of gabion nets in river projects.During the filling process, stones with hard texture and regular shape should be used and filled in layers.After each layer of filling is completed, use appropriate tools or machinery for compaction to ensure tightness and stability between the stones.At the same time, avoid filling too many stones at one time to avoid excessive pressure on the cage.
● Cage connection and reinforcement
Gabion nets in rivers are usually made up of multiple cages connected. Therefore, after the cages are filled, the connections and reinforcements between the cages need to be carried out.This can be accomplished by using wire, connectors, or other specialized tools.When connecting, make sure the connection is firm and reliable, and can withstand the impact of water erosion and river deformation.
● Later maintenance and inspection
After the gabion net installation of the river project is completed, subsequent maintenance and inspection work during the running period is required.This includes checking the integrity of the cage, the tightness of the connections, the stability of the stone, etc.Any 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, the debris and dirt on the cage should be cleaned regularly to keep it clean and beautiful.
● Environmental protection measures
During the installation and construction process of gabion nets in river projects, attention should be paid to environmental protection.First, it is necessary to control the impact of construction noise and dust pollution on surrounding residents and the environment.Secondly, the waste and sewage generated by the construction must be properly treated to prevent pollution of the river water quality and ecological environment.In addition, during the construction process, damage to the original ecological environment of the river should be minimized and the vegetation and ecosystem should be protected.
● Emergency response and plan
In order to deal with possible emergencies or unexpected situations, detailed emergency response and plans should be formulated.The emergency plan should clearly define the emergency organizational structure, division of responsibilities, communication methods, and emergency response measures.At the same time, emergency training should be conducted for construction personnel to improve their ability and level of responding to emergencies.In the event of an emergency, the plan must be activated in a timely manner and effective measures must be taken to ensure personnel safety and the smooth progress of construction.
To sum up, the installation, construction and maintenance of gabion nets for river projects involves multiple links and elements.Through the implementation of preliminary preparation and assessment, construction process overview, cage assembly and positioning, stone filling and compaction, cage connection and reinforcement, and later maintenance and inspection, the stability and stability of gabion nets in river projects can be ensured. protective effect.At the same time, paying attention to environmental protection and emergency response work is also an important guarantee for ensuring construction quality and safety.
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Lakeshore improvement projects mostly use smooth bank protection. When necessary, short buoy dam bank protection can also be used.Smooth bank protection includes two forms: retaining wall and slope protection.The retaining wall structure generally uses cages with a height of 1m arranged in layers with staggered joints.For rivers with high flow rates, mesh pads should be installed at the lower part. The length of the mesh pads is determined based on the height of the cage and the maximum scour depth.
When the friction coefficient of the soil is relatively small or the active earth pressure is large, the cage can be tilted backwards, which can effectively reduce the adverse effects of the active earth pressure on the wall. However, this tilted structure is more complicated during construction.
When the height of the retaining wall is relatively high, the graded retaining wall can also be used, which can save the amount of engineering materials, is more economical, and is more beautiful than the pure gravity type.
When the water level is relatively high or it is during the flood fighting and rescue period, and it is not suitable for cofferdam construction, the mesh pads at the bottom of the retaining wall can be changed to mesh bags or large stones to create a more favorable construction environment.
The slope protection structure includes two parts: the foot protection below the low water level and the slope protection above the low water level.The thickness of the mesh pad is determined according to the speed of the water flow to achieve optimal safety and economy. Generally, a mesh pad with a thickness of 0.2m-0.5m is used.The slope ratio is generally 1:1.5-3, which can be determined based on the internal friction coefficient of the soil and the friction coefficient between the soil and the mesh pad.
If the river erosion is particularly serious or the requirements for the river are relatively high, full-section protection can be used, which has better effects on safety and landscape effects.
Of course, retaining walls and slope protection can also be combined to form a duplex section.
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
● Preliminary preparation and evaluation
Before installing gabion nets in river projects, sufficient preliminary preparation and evaluation must be carried out.This includes collecting and analyzing basic data such as the topography, hydrological conditions, and geological structure of the river, and formulating construction plans and processes.At the same time, it is necessary to evaluate the environmental conditions of the construction area to ensure that construction activities will not cause adverse effects on the ecological environment.
● Construction Process Overview
The installation and construction process of gabion nets for river projects mainly includes cage assembly, positioning, stone filling, compaction, cage connection and reinforcement, etc.During the construction process, the design plan and operating procedures should be strictly followed to ensure construction quality and progress.
● Cage assembly and positioning
According to the requirements of the design drawings, assemble the mesh pieces of the gabion net to form a complete cage.During the assembly process, it is necessary to pay attention to the firm and smooth connection between the mesh panels, and no distortion or misalignment.After the cage is assembled, it is positioned at a designated location in the river according to the construction plan to ensure that the position of the cage is accurate and stable.
● Stone filling and compaction
Stone filling is a key link in the installation of gabion nets in river projects.During the filling process, stones with hard texture and regular shape should be used and filled in layers.After each layer of filling is completed, use appropriate tools or machinery for compaction to ensure tightness and stability between the stones.At the same time, avoid filling too many stones at one time to avoid excessive pressure on the cage.
● Cage connection and reinforcement
Gabion nets in rivers are usually made up of multiple cages connected. Therefore, after the cages are filled, the connections and reinforcements between the cages need to be carried out.This can be accomplished by using wire, connectors, or other specialized tools.When connecting, make sure the connection is firm and reliable, and can withstand the impact of water erosion and river deformation.
● Later maintenance and inspection
After the gabion net installation of the river project is completed, subsequent maintenance and inspection work during the running period is required.This includes checking the integrity of the cage, the tightness of the connections, the stability of the stone, etc.Any 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, the debris and dirt on the cage should be cleaned regularly to keep it clean and beautiful.
● Environmental protection measures
During the installation and construction process of gabion nets in river projects, attention should be paid to environmental protection.First, it is necessary to control the impact of construction noise and dust pollution on surrounding residents and the environment.Secondly, the waste and sewage generated by the construction must be properly treated to prevent pollution of the river water quality and ecological environment.In addition, during the construction process, damage to the original ecological environment of the river should be minimized and the vegetation and ecosystem should be protected.
● Emergency response and plan
In order to deal with possible emergencies or unexpected situations, detailed emergency response and plans should be formulated.The emergency plan should clearly define the emergency organizational structure, division of responsibilities, communication methods, and emergency response measures.At the same time, emergency training should be conducted for construction personnel to improve their ability and level of responding to emergencies.In the event of an emergency, the plan must be activated in a timely manner and effective measures must be taken to ensure personnel safety and the smooth progress of construction.
To sum up, the installation, construction and maintenance of gabion nets for river projects involves multiple links and elements.Through the implementation of preliminary preparation and assessment, construction process overview, cage assembly and positioning, stone filling and compaction, cage connection and reinforcement, and later maintenance and inspection, the stability and stability of gabion nets in river projects can be ensured. protective effect.At the same time, paying attention to environmental protection and emergency response work is also an important guarantee for ensuring construction quality and safety.
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