Talking about power stations

The dam site is selected in the canyon, with a width of 2 kilometers and a height of 700 meters. The cornerstone consists of several meters to several hundred meters thick hard sandstone and mudstone interbedded. Hard sandstone accounts for about 7% and has low water permeability. Uniaxial compressive strength of fresh hard sandstone is 2 100 MPa, slightly weathered hard sandstone is 80-100MPa, and mudstone is 35MPa.

Using the derivative method, it is calculated that the magnitude of the possible earthquake is 6.3 (Richter scale), which can cause the peak value of ground acceleration at the dam site ah≈0. 12g. According to the data and the importance, scale and risk level of Bagong Hydropower Station project, the basic seismic design parameters of this project are horizontal acceleration of 0. 10g and vertical acceleration of 0.05g.

The dam site controls the drainage area 1.475 million square kilometers, and the average flow for many years 1.3 1.4 cubic meters per second. The maximum operating water level of the reservoir is 228m, and the minimum operating water level is195m.