Experimental Study on Seismic Compression of Chinese Loess under Cyclic Direct Simple Shear Testing

Table 1

Equivalent cycles versus earthquake magnitude.

Earthquake magnitude	Number of representative cycles at 0.65amax	Earthquake duration (s)
5.5∼6.0	5	8
6.5	8	14
7.0	12	20
7.5	20	40
8.0	30	60