Investigation of groundwater characteristics and its influence on Landslides in Heifangtai Plateau using comprehensive geophysical methods

The occurrence of landslides in Heifangtai plateau is primarily caused by the rise water levels due to irrigation. To accurately understand distribution groundwater and its impact on landslide hazard, a combination Electrical Resistivity Tomography (ERT), Induced Polarization (IP) Surface Nuclear Magnetic Resonance (SNMR) methods were used this study. By conducting comprehensive analysis, characteristics water-bearing structure vertical horizontal detected; influence was also identified. results indicate that occurs loess aquifer with three-layer vertical. Horizontally, has unified table over plateau, low level north high one south. resistivity bedrock uplift belt middle forms watershed, side being relatively stable slope area content fewer geological disasters. In contrast, south disaster-prone region fissures well developed aquifers. southern are characterized interphase electrical resistivity. infiltration discharge result formation collapse landslide, which causes entire block slide. There newly formed larger range at landslide’s trailing edge. This study provides scientific basis for mechanisms disaster prevention identifying analyzing from geophysical perspective Heifangtai.