The seismic regime of the da ladder of hydroelectric dam
International Journal of Development Research
The seismic regime of the da ladder of hydroelectric dam
Received 28th August, 2018; Received in revised form 11th September, 2018; Accepted 24th October, 2018; Published online 28th November, 2018
Copyright © 2018, Le Van Dung, Thai Anh Tuan and Phung Thi Ngoc Anh. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
In this paper, the authors present some primary study results of studying about seismic regime in the Da Ladder of hydroelectric Dam. The following results have shown that natural earthquakes occurred in the Da Ladder of hydroelectric Dam are the strongest in the Vietnam territory. The largest earthquakes with the magnitude of 6.7 have been observed in Tuan Giao and Lai Chau areas. The b coefficient of the Gutenberg- Richer function has the value of b=0.935, the earthquake with the maximum magnitude in the ranges of 6.0 ÷ 6.9 may occur in 13 locations: MuongTe, Nam Nhe, MuongNhe, Lai Chau - Dien Bien, Son La, Tuan Giao, PhongTho, Muong La- Bac Yen, Song Đa, Nam Tong, Mu Cang Chai, Lao Cai – Ninh Binh (Phan Si Pan) and Mai Chau. In the source, the danger of earthquake with the magnitude of 6.9 might occur in the Muong Te, Lai Chau, Tuan Giao, Yen Chau and Mai Chau areas.
