Công trình phòng trị lũ bùn đá

Abstract

Debris flow is a form of flash flood, which frequently and suddenly occurs in the streams or valleys of mountainous areas. Unlike common flash flood, debris flow contains a great number of solid materials such as soil, stone, and wood, causing terrible damage to infrastructure and human. Such damage has been increasing in both frequency and intensity in Vietnam, due to anthropocentric and natural causes, including road building, housing development, mining, deforestation as well as severe climate change, and heavy and intense rainfall. To mitigate and adapt to the impacts of debris flow, several countermeasures approaches have successfully applied in many countries, but not yet in Vietnam. This paper reviews the worldwide solutions for preventing and mitigating debris flow disasters. Based on the review, we highlight key considerations for choosing the best countermeasure solutions that can be acceptable to the specific conditions of Vietnam.