The Experimental Seismic Performance of Positive and Negative Batter in a 2 x 2 Piles Group in Loose Sand. Bilad Alrafidain Journal for Engineering Science and Technology, [S. l.], v. 5, n. 1, p. 15–23, 2026. DOI: 10.56990/bajest/2026.050102. Disponível em: https://bajest.bauc14.edu.iq/index.php/bajest/article/view/151. Acesso em: 19 may. 2026.