A consideration on relation between maximum acceleration and collapsed land
volume
in large collapse scale in earthquake
Junichi KURIHARA, Nagazumi TAKEZAWA, Saiichi SAKAJO and Tomofumi SADAMURA
Abstract
At first, the characteristics of two maximum acceleration estimation formulas
by Cornell and Si]Midorikawa were studied. It was found that Cornell formula overestimates
the maximum acceleration at the short distance from the earthquake fault than
that by Si]Midorikawa. Secondarily, the collapsed land volume was compared with
the maximum accelerations estimated from the both formulas. The correlation between
collapsed land volume and maximum acceleration by Si]Midorikawa formula was better
than that by Cornell formula, although the correlation was poor. Furthermore,
It was confirmed that the Si]Midorikawa formula is more applicable than Cornell
one, through a case study on Shikoku for the coming Tonankai]Nankai Earthquake.
Eventually, Si]Midorikawa formula seems more advantageous than Cornell one for
the rational explanation on the collapsed land volume with the maximum acceleration
with distance attenuation.