Mechanical testing and modeling data from the Songliao Basin sandstones for strain localization analysis.

This dataset contains mechanical testing and numerical modeling data from sandstone samples collected at depths of 1000–3500 meters in the Songliao Basin, northeastern China. Triaxial tests were conducted under both conventional and reconstructed in-situ stress conditions using the ISRR (In-situ Stress Restoration and Reconstruction) method. All data files are organized according to figure and table numbers from the associated manuscript and supplementary information. Each file corresponds directly to a specific figure or table.

本数据集包含采自中国东北部松辽盆地1000~3500米深度砂岩样品的力学测试与数值模拟数据。本研究采用ISRR（原位应力恢复与重建，In-situ Stress Restoration and Reconstruction）方法，在常规应力及重建原位应力两种工况下开展了三轴试验。所有数据文件均按照关联论文及补充材料中的图表编号进行组织编排，每个数据文件均直接对应某一特定图表。