阿家岭隧道穿越既有铁路线综合施工技术

Comprehensive Construction Technology for Ajialing Tunnel Passing the Existing Railway

摘要:

阿家岭隧道穿越既有铁路线，通过采取洞室管棚预支护、沉降反馈开挖法、加强初期支护、监控量测技术、管棚变形监测等综合治理技术，有效地控制了既有铁路的线路沉降量，保证了顺利穿越既有铁路线。该综合技术根据隧道施工条件，突破常规施工方法和工艺，为施工类似隧道提供了参考。

Abstract:

Ajialing tunnel was planed passing the existing railway. By the comprehensive control technology of pre-support with cavern pipe shed, settlement feedback excavation method, primary support strengthening, monitoring measurement technology and monitoring on cavern pipe shed deformation, the settlement of the existing railway is effectively controlled. According to the tunnel construction conditions, this comprehensive technology breaks through the conventional construction methods and process, and provides the reference for the similar tunnel construction.