全体テーマ
東日本大震災の地震・津波に対して、震度分布や海岸毎の津波遡上特性を解析して防災対策案を検討しています。洪水・土砂災害、火山噴火など岩手県で起りうる自然災害を対象とした研究と地域防災力の向上にむけた研究を推進しています。
The division focuses on the earthquake and tsunami of the Great East Japan Earthquake, and analyzes the distribution of seismic intensity and tsunami propagation on each coast to draft disaster response measures. It also promotes research on possible disasters in Iwate including flooding, landslides, and volcanic eruptions as well as research work to improve disaster management by local communities.
(1) 重要公共施設・社会インフラの適正配置
Appropriate location of important public and social infrastructure facilities
東日本大震災の地震などの詳細震度調査をもとに、物理・地質探査により地域毎の揺れやすさを解明し、地震動による構造物被害の解析を目指すほか、斜面の安定性評価を行っています。また、地下構造探査、重力調査などにより、活断層の位置と規模の把握を行い、岩手県内活断層分布図を作成して重要施設の配置計画に資することを目指しています。
Based on detailed research on seismic intensity observed during the 2011 disaster, the division studies the seismic sensitivity of each area by physical and geological investigation, analyzes the levels of structural damage caused by ground shaking, and assesses the stability of slopes. The division also performs investigations of underground structures and gravity to estimate the location and size of active faults in an attempt to develop a map of active faults in Iwate to help plan allocations of important facilities.
(2) 海岸保全施設(防波堤など)の適正配置
Appropriate locations of coastal protection facilities (including the seawall)
建物の津波被害特性と市街地での津波氾濫の把握、流体力に対する構造物の耐性評価をもとに津波に強い町づくりを目指しています。
The division aims to create disaster resilient cities based on an understanding of the tsunami vulnerability of buildings, the level of devastation in city centers, and an evaluation of structural resistance against hydrodynamic force.
(3) 避難行動を含む地域防災力の向上
Improvement of disaster management in local communities including evacuation
災害時の避難行動調査をもとに避難路などの最適化と地域防災力の向上策の検討や、三陸海岸の津波履歴・地殻変動の研究、噴火史調査、洪水・土石流災害調査を行っています。
The division examines measures to optimize evacuation routes and improve disaster management of local communities. It also performs research on the history of the Sanriku coast tsunamis and crustal movements, studies on the history of volcanic eruptions, and research on flooding and landslides.