摘要
通过数值模拟计算,重点研究了三孔小净距隧道施工工程中,后行隧道爆破开挖对先行隧道的影响,根据分析结果,验证了设计方案中后行隧道待先行隧道初支封闭后开挖,且两隧道掌子面距离不大于30 m的小净距隧道施工控制措施具有较大可行性,以供同类条件下小净距隧道的设计与施工借鉴。
Through the numerical simulation calculation,this paper mainly studied the influence of after tunnel blasting excavation to before tunnel in three small interval tunnel construction process.According to the analysis results,verified the after tunnel waited before tunnel initial supporting closed after tunnel excavation in design scheme,and the construction control measures of two tunnels face small interval tunnel distance was not more than 30 m,had higher feasibility,for the design and construction reference of small interval tunnel in similar conditions.
出处
《山西建筑》
2013年第2期172-173,共2页
Shanxi Architecture
关键词
小净距隧道
数值分析
设计方案
small interval tunnel
numerical analysis
design scheme
