Seismic Optimization of High Cantilever Multianchor Pile Strengthening Soil Slopes against Earthquakes

Figure 14

Amplitude scatter matrix plot with dimension 3. (a) Scatter plot of acceleration amplitude matrix with dimension 3. (b) Scatter plot of dynamic soil-pressure amplitude matrix with dimension 3. The multivariate blue dots in the figure above represent the scattered distribution of amplitude values. Cyan ellipse represents 95% bivariate normal density ellipse displayed in each scatter diagram, and the narrowness of the ellipse reflects the correlation degree of variables. If the ellipse is circular and does not extend diagonally, there is no correlation between the variables. If the ellipse is narrow and extends along the diagonal direction, there is a correlation between variables [36].

(a)

(b)