AUTHOR=Qin Yulong , Jiang Ze , Tian Yongqiang , Jiang Yuan , Zhao Guanyi , Yan Jiang , Li Zhentao , Cui Ziwang , Zhao Zihui , Huang Linke , Zhang Fuping , Du Junfeng , Rong Zhongdi TITLE=Deep learning–based inverse analysis of GPR data for landslide hazards JOURNAL=Frontiers in Earth Science VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2023.1340484 DOI=10.3389/feart.2023.1340484 ISSN=2296-6463 ABSTRACT=

In mountainous landscapes, the diverse geotechnical conditions amplify landslide susceptibility. Factors such as precipitation and seismic activity can trigger landslides, while inherent hazards such as voids, fissures, and compaction deficits jeopardize long-term slope stability. Detecting and forecasting these susceptibilities accurately is crucial. In this paper, the time-domain finite-difference approach and the gprMax software are used to conduct forward modeling of landslide susceptibility. An electrical model of subsurface aqueous structures is created, including water-filled and air-filled cavities, fracture zones, and fault lines. The distinctive radar signal responses within these environments are examined, and a dataset of B-scan images associated with their electrical models is constructed. By employing deep learning algorithms and the robust nonlinear mapping ability of convolutional neural networks in the Pix2Pix generative adversarial network, we accelerate the intelligent inversion of the geological radar data on landslide susceptibility. This innovative approach effectively reconstructs hazard models, offering a reliable basis for interpretation of radar signals.