Process simulation and control of geologic hazards

Traditionally, the evaluation of slope stability and its geologic hazards is mainly based on the strength theories, such as the limit equilibrium theory and Lanking's or Columbu's soil mechanics theory, from which there is a general precept for the design of various kinds of slope supporting, retaining and reinforcements schemes in engineering circles. But the researches conducted during last 20 years show that the slope stability is characterized by its deformation features, and is difficult to be fully described by strength theory. That is, the slope instability and the occurrence of geologic hazards are a time-dependent process, and the interaction of supporting or retaining structures with rock and soil masses depends on complicated deformation features of rock and soil, not simply the hypothesis of static mechanics as made in traditional theory. A new theory, process simulation and control, is introduced based on deformation and interaction theories of slope stability evaluation and for the hazards prevention. Although it needs to be modified to perfection, its usefulness in practical engineering has been proved.