New Development of Functions of a Dry Dam for an Adaptation to Climate Change
Akira Tai*, Hideo Oshikawa**, and Toshimitsu Komatsu**
*Institute for Advanced Study, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
**Department of Urban and Environmental Engineering, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
Concerns are growing against the increasing strength of typhoons, the increasing severity of damage caused by floods and storm surges, the increased incidence of landslide damage, the increasing risk of drought, etc., attributed to the effect of global warming. As natural disaster hazard attributed to climate change intensifies drastically, the capacity to prevent disaster is weakening due to degrading infrastructure and an aging population, with a large gap beginning to appear between the two. We have not sufficiently understood such disasters brought by intensifying natural disaster hazards, and in fact may constitute a greater threat than we can imagine. Focusing on the dry dam as a flood control measure that can coexist with the environment, this study discusses new functions of the dry dam and new ways to employ it in coordination with conventional dams, proposing these measures as an effective adaptation against flood and sedimentation disasters that will continue to intensify in the future.
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