ATV logs, ellipticity data, and stress inversion results from boreholes in the BedrettoLab

This dataset contain ATV logs, ellipticity data, and stress inversion results from borehole CB1(MB1), CB2(MB2), CB3(MB3), MB4, MB5, MB8, ST1, and ST2 in the Bedretto Underground Laboratory (BedrettoLab). The ATV.zip file contain the acoustic amplitudes, traveltimes, traveltime-derived borehole radii, and binary masks of the borehole damage areas (breakouts, keyseats, and pre-existing fractures). The ellipticity.zip file contain the ellipticity data derived from the ATV traveltime log of each borehole, including the ellipse axis azimuths and ellipse axis ratios of the ATV-measured borehole cross-sections. The stress_inversion.zip file contain stress data inverted from ellipticity of each borehole, including the principal stress orientations and relative stress magnitudes.本数据集包含来自贝德雷托地下实验室（Bedretto Underground Laboratory, BedrettoLab）内钻孔CB1(MB1)、CB2(MB2)、CB3(MB3)、MB4、MB5、MB8、ST1及ST2的ATV日志、椭圆率数据与应力反演结果。 ATV.zip 压缩包内含声学振幅、旅行时、由旅行时推演得到的钻孔半径，以及钻孔损伤区域（井壁崩落、键槽及预存裂缝）的二值掩膜。 elipticity.zip 压缩包内含从各钻孔的ATV旅行时日志中提取得到的椭圆率数据，涵盖ATV实测钻孔截面的椭圆轴方位角与椭圆轴比率。 stress_inversion.zip 压缩包内含从各钻孔椭圆率反演得到的应力数据，包括主应力方位与相对应力幅值。