rockfall

n.

岩崩，落石；

1. In mountainous area, gas pipelines are destroyed by rockfall impact.
   其中，在山区由落石冲击作用引起输气管道破坏的现象时有发生。

Evaluation of rockfall and its control
Rockfall activity from an alpine cliff during thawing periods
The effects of rockfall volume on runout distance
Assessment of rockfall susceptibility by integrating statistical and physically-based approaches
Statistical analysis of rockfall volume distributions: Implications for rockfall dynamics
Analyzing rockfall activity (1600–2002) in a protection forest—a case study using dendrogeomorphology
Coefficient of restitution and rotational motions of rockfall impacts
Quantitative assessment of the residual risk in a rockfall protected area
Application of a long-range Terrestrial Laser Scanner to a detailed rockfall study at Vall de Núria (Eastern Pyrenees, Spain)
Formation and spread of callus tissue and tangential rows of resin ducts in Larix decidua and Picea abies following rockfall impacts.