摘要
根据工程实例,介绍临近既有线隧道的新隧道工程概况,并以新隧道距离既有隧道较近的进口100 m范围为例,详细说明其采取的施工方法、钻爆设计参数、进尺要求、对既有线的防护措施及监测分析;同时,对100 m范围内的施工所增加的工程量、相关费用、成本指标与一般隧道施工进行了较为详细的分析比较。
Based on engineering examples, this article makes an introduction to the general conditions of a new tunnel project adjacent to the tunnel of an existing line, and takes for example a scope of lOOm area of the entrance portal close to the existing tunnel to meticulously specify the construction method adopted, drilling and blast design parameters, requirement of drilling footage, and protection measures for and supervision analysis of the existing line. In the meantime, a detailed analysis and comparison is performed between the increased quantity of work, relevant cost and cost index of within the area of 100m of the portal and tunnel construction at large.
出处
《铁路工程造价管理》
2008年第3期11-13,共3页
Railway Engineering Cost Management
关键词
临近既有线
隧道施工
费用分析
Adjacent to existing line
tunnel construction
cost analysis
