Earthquake hazard assessment
for the Đà River hydroelectric ladder region
Nguyễn
Đắc
Cường, Đặng Thanh
Hải, Cao Đình Trọng, Thái Anh Tuấn
In
this paper, the authors present some results of earthquake hazard assessment
for Đà River ladder of hydropower plants
according to probabilistic and neo-deterministic I approaches. The results have
shown that: According to the probabilistic approach, Tuan Giáo
district, Điện Biên
province, has the largest ground accelerations with respect to the following
periods: 50 years (84 cm/s2); 100 years (114 cm/s2), 200
years (150cm/s2), 500 years (195 cm/s2), and 10,000 years
(395 cm/s2); In the meantime, the neo-deterministic approach for
earthquake hazard prediction has shown that the Tuần
Giáo area has the maximum horizontal ground
displacement (Dmax) equal to 21-23 maximum
horizontal velocity (Vmax) in the range of 22-25 cm/s
and maximum grounti motion (Amax) ranging from 200-250 cm/s2.
In the case of missing observation earthquake data, the combination of both
probabilistic and neo-deterministic approacl allows
us to improve the efficiency of earthquake hazard assessment and prediction 11the Đà
River Ladder of hydropower plants.
Người biên tập: PGS. TS Nguyễn
Hồng Phương.