Processed Spectrogram Image Dataset for Multimodal Mixed Strata Identification in Shield Tunnelling

This dataset contains the processed spectrogram image data used for the multimodal fusion model in the manuscript "A deep multimodal fusion model for real-time identification of mixed strata in shield tunnelling". The spectrogram images were generated from three-dimensional vibration signals collected during shield tunnelling. The images are used as the image-modality input of the multimodal model. The dataset includes three compressed files corresponding to three stratum types: 11.zip = HSS: Homogeneous Stratum22.zip = DMS: Dual-layer Mixed Stratum33.zip = TMS: Triple-layer Mixed Stratum The numerical input data, LOF-cleaned tunnelling-parameter data, representative sample raw vibration files, and implementation code are available in the associated GitHub repository: https://github.com/WBL-567/Multimodal_mixed_strata_model