Using traditional methods to analyse the safety of industrial projects, safety benefit and value can only reflect the safety situation of system partially, the effect of analytical results on improving the safety situation of system is limited and its application is not satisfied.

The article discussed safety benefits and studied safety models in geological engineering from the point of view that safety increase output and decrease loss The authors further detailed the method of calculating safety increase benefits, which is very helpful for geological engineering corporations to calculate their economic benefit

In this paper, using qualitative and quantitative method to analyze safety benefit,then based on cobb-Douglas function to discuss optimum allocation of safety investment.

Some construction firms focus more on management than leadership,which limits the improvement of their performance of work safety.

After introducing the principle of hydrosate separation, a feasible separation process was introduced and a comprehensive utilization of mother liquor was designed to improve the production benefit.

Technical Means in the Supervision and Management of the Coal-mine Safe Production——The application of the image monitor-control system in the coal-mine safe production supervision and management;

Discussion on psychological quality and safe production;

Exertion of Principle of Humanism to Promote Safe Production;