Riverbank Stabilization using Interlocking Blocks
Bank erosion, mostly triggered by intense rainfall and flooding, is the single most common problem in the river system that causes a lot of damage. Severe bank erosion along waterways not only threatens river biodiversity but also
endangers the lives of many people residing nearby bank sites. Immediate repairs and restoration of eroded bank slopes are therefore necessary to prevent possible threats of bank degradation.
Riverbank restoration and
stabilization may require concrete revetment structures to provide lateral and vertical stability along the eroded banks. The common practice in the Philippines is through the use of conventional methods such as grouted riprap,
gabion, mattress and other rigid structures which not only entails huge government funds but, in most cases, are not stable and environmentally compatible along the riverbanks.
The use of flexible concrete revetment
such as interlocking blocks becomes an effective solution for immediate restoration and stabilization of unstable and eroded riverbanks. Interlocking block is an economical, environment friendly and in many cases, it is the
superior alternative to conventional erosion control materials for revetment and channel protection.
The unique, octagon-shaped, interlocking concrete blocks are placed on engineered geotextile filter fabric to protect
against soil erosion. The open areas in the system allow for the relief of hydraulic pressure to ensure system integrity throughout the installation. The interlocking block allows for flexibility throughout the system to adjust
for changing soil conditions while maintaining the lateral stability of the system.
Product Description
Interlocking block is made of concrete, octagonal in shape, with interlocking components four directional, whereby each component resists horizontal movements when interlocked into adjacent blocks. The assembled blocks are the open-cell type and have a void space of approximately 17% to allow for re-vegetation.
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