Aseismic analysis method for buried steel pipe crossing fault;

Research on Integrity Assessment System of Corrosion Protection for Buried Steel Pipeline;

A comprehensive evaluation method for the external corrosion protection of buried steel pipeline in oil filed is proposed based upon specific corrosion and protection conditions of buried steel pipelines in Daqing Oil Field.

The influencing factors and types of stress corrosion cracking(SCC) of buried steel pipeline are described,the domestic and foreign typical accidents and the research status of SCC on pipeline are summarized,and the precaution measures are put forward.

Study on Classification Assessment Methodology of Safety Quality for Protective Coating of Buried Steel Pipelines;

The importance of sacrificial anode and cathodic protection are illustrated,by analyzing the corrosion of the buried steel pipelines.

The cathodic protection of buried steel pipelines and design procedures are described.

The buried steel pipelines are subject to severe corrosion because of the complex soil environment.

Applying the method of fuzzy mathematics,the assessment indexes of soil corrosivity are assigned according to their characteristics,the model of fuzzy assessment matrix is established,and the assessment and classification of soil corrosion strength along buried steel pipeline are carried out.

The external wall of buried steel pipeline used for the transmission of urban gas will be corroded chemically and electrochemically because of the reasons of the soil.

Due to geological hazards, the buried steel pipeline could be suspended resulted from the falling down or sweeping away of soil under it.

Large deformation analysis of buried pipelines under the condition of collapse and gulch;

Temperature drop calculation of waxy crude in a buried pipeline after shutdown using enthalpy formulation;

Effect of external factor on asphalt coating of buried pipeline;