This paper describes development of a smart breakwater or river bank us 孟 ng honeycomb − like structure to be adaptive to change ofwater leve1 . A desig 睡ed cell is dofbrmed using a tensile test machine , and the resu } ts show that the honeycomb cell can dep】 oy up to double of is original height without plastic defbrmation and the defbrmation is reproducible . It is stacked up to twelve layers and similar perfbrmance can be 丘 ) und . In addition , a six − layer deployable model is prepared

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... it became clear that the model can change its height in proportion to the water height in the experimental range and successfUlly block tle water .