新建高速铁路接触网基础施工缺陷整改及预防措施

Defect Rectification and Preventive Measures of OCS Foundation Construction for New High Speed Railway

新建高速铁路接触网基础工程由站前施工单位预留,并与站前工程同步施工,但站前预留接触网基础工程施工中存在施工不规范情况。为进一步探讨接触网基础施工问题,以新建中兰铁路为例,总结路基和隧道区段接触网基础施工过程中出现的典型问题,提出相应整改方案及预防措施。研究成果对路基接触网基础和隧道内预埋槽道施工和问题整改具有一定指导意义。

OCS foundation works of new high speed railway is reserved by the construction contractor of civil works and constructed simultaneously with the civil works,where,however,its construction quality is often unacceptable.In order to further discuss the problems of OCS foundation construction,the paper summarizes the typical problems arising in OCS foundation construction in subgrade and tunnel sections,and proposes the corresponding treatment scheme and prevention measures,by taking the new Zhongwei-Lanzhou Railway as an example.The research results provide references for the construction and problem treatment of OCS foundation in subgrade and pre-laid ducts in tunnels.