摘要
随着城市规模的不断扩大,多处建、构筑物占压在西气东输输气管道上方。为了消除隐患,对占压段管道进行改线。结合西气东输改线工程实例,介绍了顶管穿越公路的施工方案,对操作坑、接收坑开挖和顶管施工中的主要风险进行评估后提出了对策,并明确了顶管施工的允许偏差。
Combined with the example of the West-to-east Gas Transmission Line engineering, this paper introduced the construction scheme of pipe-jacking crossing highway, put forward the countermeasures and also defined the allowable deviation of pipe jacking construction after assessing the main risks in the operating pit,receiving pit excavation and pipe jacking construction.
作者
路平
LU Ping(Shanxi Transportation Research Institute,Taiyuan,Shanxi 030006,China)
出处
《山西交通科技》
2018年第6期41-43,共3页
Shanxi Science & Technology of Transportation
关键词
顶管穿越
公路
风险评估
允许偏差
pipe jacking crossing
highway
risk assessment
allowable deviation
