AUTHOR=Wang Shengdi , Chen Junzhi , Zhang Yonggang , Qiao Xiaowei , Zhang Zhiping , Wang Xin TITLE=Determination of similar material proportions based on orthogonal experiments and neural network optimization in the goaf area JOURNAL=Frontiers in Earth Science VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2025.1582941 DOI=10.3389/feart.2025.1582941 ISSN=2296-6463