Drainage System

Geosynthetics are easier to install in the field and often cost-effective in situations were granular materials available do not meet design specifications, are scarce, or have their use restricted by environmental legislation. Conventional graded granular materials are used for filtration and drainage purpose in various projects of civil engineering. Various types of aggregate drains are available. The most common form of aggregate filled drains is the French drain which comprises a trench filled with free-draining aggregates. 

Satisfying the drainage criterion for conventional graded filter design is extremely expensive. The conditions can easily and cheaply be achieved using a geosynthetic drainage system. It can perform both drainage and filtration. Geosynthetic allows water to pass along its plane. Transmissivity. Filtration: Geosynthetic also allows water to pass across its plane, but retain the soil particles.