地下厂房岩锚梁开挖施工技术

Excavation Construction Technology of Rock Anchor Beam in Underground Powerhouse

水电站地下厂房开挖施工主要有顶拱开挖、岩锚梁开挖和高边墙开挖。而岩锚梁施工是整个地下厂房施工过程中的重点和难点,其开挖质量要求高,施工精细,岩锚梁的开挖施工质量及施工精细化程度可体现出整个地下厂房的开挖施工水平,尤其在不良地质条件下岩锚梁施工,其开挖施工技术尤为关键。结合工程实例,分析总结岩锚梁开挖施工技术。

The excavation construction of the underground powerhouse of the hydropower station mainly includes arch excavation,rock anchor beam excavation,and high side wall excavation.The construction of rock anchor beams is a key and difficult point in the entire underground powerhouse construction process,with high excavation quality requirements and meticulous construction.The excavation construction quality and refinement level of rock anchor beams can reflect the excavation construction level of the entire underground powerhouse.Especially in the construction of rock anchor beams under adverse geological conditions,the excavation construction technology is particularly critical.Based on engineering examples,this paper analyzes and summarizes the excavation construction technology of rock anchor beams.