For evaluating the fire-resistance stability of steel columns which are exposed to red-heat furnace charge in safety pit in the nonferrous metal factory building,the temperature distribution of the steel columns within the height of 9m is calculated on basis of heat radiate theories and numerical computational method.

In connection with damage examples of basic pit proj ec t,it introduces first safe & reliable maintenance plans and second informational construction to guarantee safety of basic pit & architectures around it and puts forward concrete treatment measures of common accidents of basic pit.

Investigation and disinfection of air microbial contamination in martial tunnels;

Fugal pollution of stored water in martial tunnels in North China:an analysis of causes;

Research on understanding and improvement of accident possible prevention for coal mine enterprises;

Application Study of Abrupt Change Theory in Accident Prevention Management;

The protective measures against radiation injury for the servicemen and residents after the Chernobyl accident;