Research Article

A Simplified Procedure for Base Sliding Evaluation of Concrete Gravity Dams under Seismic Action

Table 4

Mechanical parameters of the equivalent SDOF system for the four dams and the three foundation rock types considered.

Dam tagRock type 𝑀 𝑑 𝑤 (ton) 𝐾 𝑑 (kN/m) 𝑇 (s) ̃ 𝜉   % 𝑘 𝑓 (kN/m) 𝑅 𝑦 (kN) 𝑝

1 Granite 356.67 8.29 105 0.13 7203 1053124.6 3.54
Limestone-dolomite320.29 6.71 1050.148150 105 4378.53.17
Sandstone266.474.7 1050.1511 82.5 105 5394.1 2.64

2 Granite1237.4 9.38 105 0.23 7203 10510200 3.17
Limestone-dolomite1111.2 7.6 1050.258150 105 132542.84
Sandstone924.455.33 1050.2711 82.5 105 15238 2.37

3 Granite 1748.5 8.18 105 0.3 7203 10513177 3.69
Limestone-dolomite1570.1 6.62 1050.318150 105 171733.32
Sandstone 1306.3 4.64 105 0.3411 82.5 105 19276 2.76

4 Granite 2262 8.71 105 0.33 7203 10516613 3.43
Limestone-dolomite2031.2 7.05 1050.358150 105 210233.08
Sandstone1689.94.94 1050.3811 82.5 105 23297 2.57