Nghiên cứu đặc điểm đất bồi lắng hồ chứa vừa và nhỏ ở Hà Tĩnh

Abstract

Sediment deposition in resevoirs after a duration of operating has affected their useful capacity, especially in the small and medium reservoirs in Ha Tinh province. This problem causes reducing the reservoirs’efficiency and operation duration, as well as changing the water quality. If reservoirs are considered as a type of natural resource,  sedimentation is the main factor for its depletion. In order to cope with this problem, the research utilizes the sedimentation of  the reservoir bed as a type of embankment material to widen the dam surface, an approach to ensure the constructions’safety according to the new standards. Therefore, in addition to the practical significance in scientific aspect, this research also has economic, environmental and social efficiency such as restoring the duration of  reservoir’s exploitation and operation, increasing reservoir capacity, reducing the cost due to the utilization of local materials for embankment, and not affecting the social environment.