This thesis firstly introduced the developing trend and security situation of the large-scale tank area,discussed the necessity of the security analysis and technology research in large-scale tank area.

Reliability-evaluation of earthquake-resistant capacity for large storage tank;

In this article,the discussion of several equations commonly used in calculating spherical arc plate of vault in large storage tank was carried out.

The large spherical tank was normally heat treatment by injection combusting within in the tank.

Taking the integral remove of a 2 000 m3 standing cylindrical storage tank with a dome at Xinjiang Kelamayi Petrochemical Company for example, this paper discusses the characteristics of two integral remove methods of large scale storage tank which are to use heavy catepillar and use rolling bars with jacks aided.

To improve safety performance of large oil storage tanks in-service,it is supposed that fatigue failures mainly result from the stress concentration of shell-to-bottom fillet welds.

However, the design and construction technology of large oil storage tank is quite immature, it is necessary to improve the design and construction technologyof large oil storage tank.

In order to ensure the safety of large oil storage tank, further research to the static strength and seismic response of tank are carried on.

A device was designed for pressuring and fastening rigidly the welding test pieces,on which the load was put on the tank,by which the technology of the large-scale storage tanks was assembled by inverted construction method.

The safety state, regulations and codes inspection techniques for pressure pipeline and storage tank implementing in China are reviewed.