Resilience measure: Frame barrier


Frame barriers consist of rigid frames with impermeable membranes or sections spanning between them. They rely on supporting frames and the weight of the water to provide the barriers stability. They are modular and are connected together to form a continuous barrier. Frame barriers can be further sub-divided into flexible and rigid types. These sub categories refer to the materials which span between the frames to provide the barrier. These containers are another example of temporary flood protection systems. Frame barriers can be either flexible or rigid. Flexible barriers consist of metal frames with flexible impermeable membranes spanning between them. The impermeable membrane extends upstream to form a long skirt and relies on the weight of the water acting on the membrane for increased stability and sealing with the ground surface. The rigid ones consist of metal frames with rigid panel elements that span between the frames which are often covered by an impermeable membrane. The separate units are connected together to form a continuous barrier. (Ogunyoye F. et. al, 2011, p.46)

Co-benefits and impacts

As an application/example of temporal flood protection system, they are quickly and easily placed and removed, efficiently stored and easily transported. They adapt well to various terrain conditions (except hard surfaces, they are easily cleaned and reusable while minor repairs to membrane can be made under service conditions. Especially for the rigid frame barriers and for some system, they can be increased in height during service. Major disadvantages are that membrane is susceptible to heavy winds (especially before flood peak), they might cause high bearing pressure on soil, they are susceptible to leakage at low water levels and they would require heavy transportation and storage requirement. Especially the flexible frame barriers are susceptible to vandalism, accidental tear and puncture damage. (Ogunyoye F. et. al, 2011, p.46)

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Last modified: Sept. 16, 2016, 3:57 a.m.