Empty gabion baskets shall be assembled individually and placed on the approved surface to the lines and grades, the tops of all sides are level.
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All gabion baskets shall be properly staggered horizontally and vertically. Finished gabion structures shall have no gaps along the perimeter of the contact surfaces between adjoining units.
All adjoining empty gabion units shall be connected along the perimeter of contact surfaces to obtain a monolithic structure.
All lacing wire terminals shall be securely fastened.
All joining shall be made through selvedge-selvedge or selvedge-edge wire connection; mesh-mesh wire connection is prohibited except in the case where baskets are offset or stacked and selvedge-mesh or mesh-mesh wire connection would be necessary. Fasteners shall be installed at each mesh opening at the location where mesh wire meets selvedge or edge wire.
Gabion Basket Placing:
The initial line of gabion basket units shall be placed on the prepared filter layer surface and adjoining empty baskets set to line and grade, and common sides with adjacent units thoroughly laced or fastened. They shall be placed in a manner to remove any kinks or bends in the mesh and to uniform alignment. The basket units then shall be partially filled to provide anchorage against deformation and displacement during the filling operation. The stone shall be placed in the units as specified or directed by the manufacturer.
Deformation and bulging of the gabion units shall be corrected prior to additional stone filling. When the stone is placing, PVC coating on the gabions shall not be damaged if PVC coated gabions are utilized. All stone on the exposed face shall be hand placed to ensure a neat compact appearance.
Gabions shall be uniformly overfilled by about 1-3 inches to account for future structural settlements and for additional layers. Gabions can be filled by any kind of earth filling equipment. The maximum height from which the stones may be dropped into the baskets shall be 3'.
When excavation and foundation preparation are completed, the pre-assembled gabions shall be placed in their proper location according to the plans provided. Gabions shall then be connected together and aligned prior to filling with stone.
The stone fill shall have a gradation as specified. The stones/rocksl shall be placed into the gabion units in 1' lifts. Cells shall be filled to a depth not exceeding 1' at a time.
The fill layer should never be more than 1' higher then any adjoining cell. Connecting wires shall be installed from the front to back and side to side of the individual cells at each 1' vertical interval for gabions with a depth of 3'. The voids shall be minimized by using well graded stone fill and by hand placement of the facing in order to achieve a dense, compact stone fill.
All corners shall be securely connected to the adjoining basket of the same layer before filing the units.
When more than one layer of gabions is required, the next layer of gabions shall be connected to the layer underneath after this layer has been securely closed. Gabions shall be uniformly overfilled by about 1-2 inches to account for structural settlement.
Geo fabric shall be placed directly on the prepared area.
Longitudinal and transverse joints shall be overlapped at least 1000 mm.
The fabric shall be placed in such a manner as to have the least number of longitudinal joints. Wherever such joints occur the upper portion of the fabric shall overlap the lower portion.
The lower and upper end of the geotextile shall extend beyond the face line of the toe and crest of slopes respectively.
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Welded mesh gabions are filled on site with hard and durable stones to form mass of gravity retaining structures. Due to their inflexibility, welded gabions are generally not considered suitable in areas susceptible to differential settlement, or in water courses.
The gabions are available in a variety of wire diameters and unit sizes to meet project requirements.
In common with all gabions during installation, all welded units need internal bracing wires to be overfilled to allow for settlement of the granular rock fill.
Gabions are delivered in folded flat-packed. All verical joints are factory fitted for quick assembly on site. The base and lid panels are connected with horizontal and helical. The bracing ties, spiral wires and joining accessories are prefabricated and adjusted to fit the Gabion type.
Take a Gabion from a pallet and cut the securing brace. Lift the accesories and pull the Gabion untill full length is reached. Close the base helically and fold the ends 90° inwardly with pliers, to prevent sharp end and injuries.
According to applications, Gabions can be connected to form a long monolithic structure. Prefabricated joining pins are provided for each Gabion. The joining shall be done at both sides.
Bracing tie wires are used to prevent heavy deformation caused by filling rocks in the Gabions. Bracing ties are placed 4 meshes from the sides and around the weld. If not, the weld can break or the bracing tie can move. Repeat this principle untill the Gabions are fully filled.
After filling the Gabion, the lid can be closed. Use the included spirals and attach the lid at every edge including the diaphragm panel. Also twist the ends inwardly for safety reasons.
Dealing with soil erosion is an all too common issue without a sea wall. Over time, this problem will only worsen, which is why working with a company specializing in gabion seawall construction is essential. A gabion wall is a durable choice that can play a critical role in shore erosion prevention. Learning about the pros and cons of gabion walls is always essential if you consider this option for water erosion control.
A gabion wall consists of large cages built with galvanized steel wire mesh and steel. You can either fill a gabion sea wall with boulders, sand, or stones for stability. Gabion walls are especially effective at protecting shorelines by limiting the impact of erosion. These sea walls were invented in the late 19th century, as they are a highly effective option for shore stabilization. Hiring a contractor specializing in gabion wall construction is an excellent choice for protecting your shoreline.
A gabion sea wall is available in three different styles. The most common version is a gabion wall with galvanized steel wire mesh placed between the walls. Another option is a gabion wall with sand, crushed stone, or gravel glued in a specific pattern. This option is often used for creating temporary dams on flood control projects. The third type of gabion wall can be filled with stone or concrete and placed on the ground without wire mesh.
A gabion wall is an excellent investment for water erosion control due to its wide range of benefits. One of the main advantages of a gabion wall is that they are relatively easy to install if you hire a company specializing in gabion wall construction. Gabions are also highly durable, resistant to strong winds and have a long lifespan. You can also choose a variety of designs to limit soil erosion.
Learning about gabion wall’s pros and cons is always a good idea before you make such an investment. One of the disadvantages of gabion walls is that the installation costs are higher compared to other types of retaining walls. You will also need to perform regular maintenance, such as refilling them with fresh stones and inspecting any existing structures for signs of damage. However, maintaining a gabion wall is pretty simple compared to other options.
Large trenches will need to be dug to install gabion walls near a shoreline. A gabion wall construction company can easily handle this job while determining how many gabions are required to complete the task. A sea wall contractor will also choose the size of the wire basket before installing blocks. A gabion wall can be built with various materials, such as wood, stone, concrete, earth, cement, or even plastic. Discussing your options can help you choose the best one to meet your needs.
A gabion wall can range from $9 to $15 per square foot. However, installing a gabion wall often
depends on the type of stone, as rare stones are much more expensive. Getting a quote from different contractors in your area can help you determine the best gabion wall that meets your needs without going over budget.
The lifespan of gabions is primarily dependent on the environment. These walls can often last more than 30 years in coastal regions with moderate salinity. On the other hand, you can expect these sea walls to last around 15 years with high humidity and salinity. Scheduling ongoing maintenance for gabion walls is key to extending their lifespan and reducing the need for repair work.
A gabion wall is an excellent choice for limiting soil erosion, and it’s a highly durable material that can last for decades. You can also select from a wide range of design options and many different materials. Hiring a contractor specializing in gabion wall construction is critical in ensuring everything happens smoothly and that you are well-pleased with the results. Ultimately, a gabion wall offers great water erosion control and shore stabilization for anyone needing a long-term solution.
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