In trenchless pipe jacking project,the heating pipeline in the casing is easy to arch after thermal expansion.In order to prevent the pipeline from being damaged due to arching,the allowable layout length of the pipeline in the casing should be checked and analyzed.The calculation results obtained by the traditional check method are short,which does not meet the needs of the actual project.Therefore,this paper proposes an improved check method considering the self-weight and medium weight of the heating pipeline,and the allowable layout length range obtained can be expanded,which can meet the needs of the actual project.
关键词
非开挖顶管/套管/允许布置长度范围/校核分析
Key words
trenchless pipe jacking/casing/allowable layout length range/check and analysis
维普
万方数据