锚碇隧道开挖爆破施工技术研究

Research on Excavation and Blasting Construction Technology of Anchorage Tunnel

锚碇隧道施工质量直接关系着悬索桥使用安全与寿命,如何保证锚碇隧道的施工质量并加快施工进度是施工单位面临的难题。论文以大渡河悬索桥锚碇隧道施工为背景,分析锚碇隧道爆破施工的难点,根据施工技术要求确定爆破方案,并在锚碇隧道施工过程中对中隔岩墙的振动情况进行监测,确保掘进爆破施工时锚洞的稳定性,希望能为类似工程施工提供参考。

The construction quality of anchor tunnel is directly related to the service safety and life of suspension bridge.How to ensure the construction quality of anchor tunnel and speed up the construction progress is a difficult problem faced by the construction unit.Based on the construction of the anchorage tunnel of Dadu River Suspension Bridge,the paper analyzes the difficulties in the blasting construction of the anchorage tunnel,determines the blasting scheme according to the construction technical requirements,and monitors the vibration of the diaphragm wall during the construction of the anchorage tunnel,so as to ensure the stability of the anchorage tunnel during the excavation blasting construction,hoping to provide reference for similar engineering construction.