ABSTRACT
Many landslides with long travel distance are flowlike in character. Some, such as debris flows, have distributed velocity profiles resembling the flow of fluids. Debris flow poses a costly risk for lives and properties in mountainous and rainy areas. In the field, a flexible barrier may be composed of rings, ropes, nets, springs and dashpots. Anchors may be installed to fix the barrier in position. Anchorage may break under heavy impact load, leading to the failure of the barrier. Particle Flow Code in Three Dimensions is a numerical simulation tool that models the motion and interaction of spherical particles by the distinct element method. Numerical simulations indicate that the contribution of static load increases during the impact process. Static load is illustrated and verified to contribute the maximum impact force substantially.
