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. 2025 Dec 10;16:2135. doi: 10.1038/s41598-025-31917-y

Table 4.

N1and CSR with different fines contents from case history datasets by Idriss and Boulanger27.

Total soil specimens FC (%)
0 0 < FC ≤ 5 5 < FC ≤ 10 10 < FC ≤ 20
6 8 8 3
N1 Ave. N1 13.4 10.9 7.1 8.4
Ave. no highest&lowest 12.9 10.7 7.5 -
S.D. 4.0 2.7 3.1 2.2
Calculate CSR Ave. CSR 0.2 0.1 0.1 0.2
Ave. no highest&lowest 0.2 0.1 0.1 -
S.D. 0.05 0.05 0.02 0.03