||The main goal of this course is explosion and discussion about active structures and their engineering evaluation. It includes several subjects: 1. introduces and discussions the definition, classification, geometrical characteristics. Behaviors. 2. Expounds various hazards caused by active structures, such as volcano, earthquake, fracture, landslide and rockfall. 3. Describes the main methods for the investigation. 4. Expounds and discusses the evaluation methods. 5. Case studies and approach limitations.