From 9 to 11 August 2019, the southeast coastal areas of China were hit by Typhoon Lekima, which caused a large number of shallow landslides. The typhoon resulted in a maximum rainfall of 402 mm during 3 days in Ningguo City. In this study, satellite images were acquired before and after the rainfall and visual interpretation was used to identify 414 shallow landslides in Ningguo City, and a complete database of shallow landslides caused by the typhoon-induced rainfall in Ningguo City was created. Nine landslide-influencing factors were selected—elevation, slope, aspect, strata, distance to faults, distance to rivers, distance to roads, normalized vegetation difference index, and rainfall—and the relationships between the rainfall-induced landslide distribution and the influencing factors were analyzed. The Bayesian probability method was combined with a logistic regression model to establish a landslide probability map for the study area. The real probabilities of landslide occurrence in the study area under five different rainfall conditions were calculated, and probability maps of landslide occurrence were drawn. The results of this study provide a reference for disaster prevention and reduction of typhoon rainstorm landslides in the southeast coastal areas of China and a future basis for decision making by the Ningguo government departments before a typhoon rainstorm occurs.

Failures of metro tunnels that pass obliquely through ground fissures at low angles are a common problem; however, their mechanism is unknown. In the city of Xi’an, China, Line No. 3 of the Xi’an Metro intersects ground fissures at a low angle (<25°) in certain zones. In this study, particle flow numerical analysis and physical model tests were used to investigate ground-surface deformation, structural distortions, and failure characteristics caused by ground fissures. Tests revealed an integrated bend-shear-torsion failure mode of any tunnel that entered a ground fissure obliquely at an angle of 20° or less, under the action of activities associated with a ground fissure. The tunnel structure indicated damage characterized by long longitudinal cracks and multiple groups of subparallel vertical cracks. The range in failure of the tunnel was up to 3.5 times the tunnel diameter on the hanging-wall side and up to 4.5 times the tunnel diameter on the foot wall. When metro tunnels intersect ground fissures at low angles, traditional tunnel designs do not meet minimum safety standards. It is therefore necessary to explore alternative metro tunnel designs in fissure-prone areas.