BASIC EXAMINATION OF THE OPTIMUM SEPARATION DISTANCE BETWEEN MOUND TYPE TSUNAMI EVACUATION FACILITY “INOCHIYAMA” AND SURROUNDING HOUSES

Abstract

 Under the Great East Japan Earthquake, Mound type Tsunami Evacuation Facility is focused in the reason of the survivors by being evacuated to Mound type Facility from Tsunami. On the basis of examination results in Fukuroi-city, Shizuoka-prefecture, SEO et al.¹⁾ proposed the design method of Mound type Tsunami Evacuation Facility. In this paper, the examination of crest height and stability of the structures are used the inundation depth on the result of tsunami simulation. Tsunami simulation implemented the high-resolution analysis to handle the surrounding houses as terrain. In this case, it is contemplated that the water rise may occur in the Tsunami Evacuation Facility, judging from the positional relationship between Tsunami Evacuation Facility to cause the flow inhibition and the surrounding houses. This paper reports the optimum separation distance between Tsunami Evacuation Facility and the surrounding houses.