摘要
文章以兰渝铁路胡家湾隧道进口和东扎沟隧道进口施工为例,阐述在如泥岩、页岩等软岩地层洞室开挖时出现的围岩变形特点;从地质、施工等方面分析其变形原因;并从施工时机、施工方法等施工角度分析,制定控制变形的应对措施。以期在类似地层洞室施工时,在控制围岩变形中起到一定的指导、借鉴作用,并确保工程质量及安全。
Taking the entrance construction of Hujiawan tunnel and Dongzhagou tunnel on Lanzhou-Chongqing railway for examples,deformation characteristics of surrounding rocks during excavation of tunnels in soft rocks such as mud stone and shale are described.Causes of deformations were analyzed in respect of geology and construction.Corresponding countermeasures were established according to construction opportunity and method.
出处
《现代隧道技术》
EI
北大核心
2011年第2期83-86,共4页
Modern Tunnelling Technology
关键词
软岩地层
洞室变形
原因分析
控制措施
Soft rocks
Tunnel deformation
Cause analysis
Countermeasures
