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Filter Media Definition for Retaining Wall in Road Construction

December 29, 2022
What is Filter Media in retaining wall?

Filter media for retaining wall in road construction refers to the material used between the retaining wall and the soil behind it. Its purpose is to allow water to drain through the wall while preventing soil particles from passing through and clogging the drainage system. Filter media can be made of a variety of materials, including geotextile fabric, gravel, or crushed stone. It is important to choose a filter media that is suitable for the specific needs of the retaining wall and the soil conditions of the site. Proper selection and installation of filter media can help to ensure the stability and longevity of the retaining wall.

Quantity calculation challenges

Quantity take-off is the process of measuring and calculating the quantities of materials and resources needed for a construction project. In the case of retaining walls, the geometry of the structure can be complex, which makes it difficult to accurately calculate the area of the filter media layer. This is because the filter media layer is typically located between the retaining wall and the soil behind it, and the shape and size of this space can vary significantly depending on the design of the wall and the soil conditions at the site. As a result, it is important to carefully measure and calculate the quantity of filter media needed to ensure that the retaining wall is stable and effective at draining water and preventing soil particles from passing through and clogging the drainage system.

How Road Estimator eases Filter Media quantity take-off?

Road Estimator is a software tool specifically designed to help professionals in the road construction industry to accurately calculate the quantities of materials needed for various aspects of a road project. One of the features of Road Estimator is its ability to calculate the quantity of filter media needed for a retaining wall in road construction. To use this feature, you will need to input the dimensions of the retaining wall, such as its height, length, and width, as well as the desired conditions of the filter media layer. Once you have entered this information, the software will use it to calculate the area of the filter media layer and the total quantity needed based on these inputs. This can help you to ensure that you have the right amount of filter media on hand or quantity of material used for your project. It effectively addresses the challenge of chainage wise dimension changes of the retaining wall.

There is a provision to identify important points in a road template using Anchor Points. Though the dimensions of the road elements change, it is possible to create line or enclosed area using these anchor points. We can define filter media using this feature and get quantities of the same in report format or can be attached to the cross-section’s area statement.

We’ve recently conducted a webinar where we’ve tried to explain the complete procedure in the simplest way. Please view the recorded video below for more information.