Abstract
Severe wave erosions caused by floods during every rain season are serious problem in Bangladesh. Vulnerable infrastructures are not only insufficient to protect human life, houses, livestock and their livelihoods, but also induce vicious circle of poverty with loss of economy activities and increase of maintenance costs. For this reason, it is essential to alleviate serious flood disasters caused by wave erosion, and to develop a cost-effective countermeasure against wave erosion for soil structures (e.g., road embankments, bridge abutment approaches). In this study, based on the soil bag reinforcement technology developed by National Institute for Rural Engineering (NIRE), we proposed a new countermeasure technology against wave erosion using Labor-Based-Technology (LBT) and available natural resources in Bangladesh. We reported the pilot test for road embankment (H=2.9 m, 1.0V:0.6H, L=28.0 m, total 1,776 bags,), which consist two type of slope protection sections using 980 jute bags and 796 geosynthetic bags.
