Preliminary discussion on technical guideline for geohazard risk assessment

In order to analyze and clarify some key issues in the field of sudden geo-hazard risk assessment,on the basis of general analysis of purposes,basic principles,structure and core contents of the technical guideline for geo-hazard risk assessment,this paper has focused on the working process of risk,probability and possible consequence assessment. Six basic principles,structure and core contents which should be followed are put forward; qualitative analysis with combination of quantitative evaluation method and techniques are achieved with emphasis on practical techniques and GIS application; basic working process of risk,probability and possible consequence geo-hazard assessment are put forward. Lastly,there are some brief discussions on some of the major difficulties which are easy to be confused in terms of geo-hazard risk assessment,which can be referred to for the technical guideline revision and improvement.