摘要
紧邻既有线城际铁路建设,既需考虑既有线安全运行,又需保证新线按时保质施工。针对既有线路基边坡在新线建设开挖过程中的稳定性问题,模拟现场可能出现的不利工况,采用固结有效应力法等3种方法,计算施工开挖影响下既有线路基稳定性,采用数值分析法对其进行对比验证,并提出对地基处理方式与施工方法的修改建议,对现场施工具有一定的指导意义。
The construction of inter - city railway which closed to the existing line should both guarantee the safe operation of the existing line and the construction quality of the new line. Based on stability of the existing line sub - grade slope during the excavation of new line construction, this paper simulated site possible adverse conditions, and adopted consolidation effective stress etc three methods to calculate the stability of the existing line sub - grade under the influence of construction excavation. Moreover, numerical analysis was used to evaluate the validity of this techinque. And modified recommendations of sub - grade treatment and construction method was proposed which has some significance to site construction.
出处
《铁道科学与工程学报》
CAS
CSCD
2010年第4期49-55,共7页
Journal of Railway Science and Engineering
基金
沪宁城际铁路施工安全与沉降监测技术研究资助项目(2009G008)
关键词
紧邻既有线
路基施工
边坡稳定性
地基处理
close to the existing line
sub -grade construction
slope stability
sub -grade treatment
