Main components of an adequate subdrainage system

As we indicated in the previous post, water seepage threatens the useful life of civil works, in general. By not implementing an adequate subdrainage system, it threatens, in the medium term, the stability and performance of any road project.
This is why, in order to carry out an adequate subdrainage system, you must take into account the disposition and nature of the materials involved, an issue that Ing. Juan Pablo Vargas will talk about in the following video. Please note that you can refer to the transcript below.
French drain or geodrain? Calculate quantities and costs, according to your project, and choose the best solution with our analysis of unitary prices.
VIDEO TRANSCRIPT
Components principles of an adequate subdrainage system
To guarantee the stability of any geotechnical engineering work, it is very important to control the water flows contained in the soil masses. It is for this reason that the selection of suitable geosynthetics is essential; Only in this way can you ensure the filtration and drainage functions.


For this purpose, commonly used alternatives are geotextiles, geodrains and drainage pipes.
geotextiles
They are planar materials, made from fibers or filaments that are intertwined with each other to guarantee drainage capacity in their own plane. Additionally, they function as filter and separation materials, which are phenomena that consist of preventing the entry of particles, while allowing the free passage of water.

Recommendation: The main properties that must be taken into account for the hydraulic characterization of a geotextile are its permeability, its permittivity, its flow rate and its transmissivity.
Fact: The weft insertion weave of geotextiles improves the drainage capacity in its own plane, which is known as transmissivity. (You are interested in: Benefits of geogrids for the construction of retaining walls in reinforced soil).

the geodrains
They are drainage compounds made up of a non-woven geotextile filter medium and a geonetted drainage medium. The main hydraulic properties of geodrains correspond to transmissivity, offered by geotextiles as a filter medium, and the high flow rate, offered by the geonet.

Recommendation: From a mechanical point of view, it is very important to take into account its resistance to compression, due to the states of confinement in which the geodrain can be found. (Read: Comparative analysis between the French drain and the geodrain as subdrainage systems).
drainage pipes
They are flexible pipes, made of high-density polyethylene, with perforations that guarantee an adequate level of water collection. Some of the most important properties of the drainage pipe are its high resistance to compression and its high resistance to attack by chemical agents, which, together with the percentage of open area offered by its perforations, guarantee an adequate level of water conduction. .

The use of these alternatives in subdrainage systems contribute functionally and economically thanks to their technical properties, thus guaranteeing the proper functioning and stability of the works. Get to know the installation guides and more technical information of the Geomatrix products for subdrainage systems, entering our specialized library.
Also, find out which is the ideal solution for your project by accessing our unit price analysis, linked below.