铁道建筑技术
鐵道建築技術
철도건축기술
RAILWAY CONSTRUCTION TECHNOLOGY
2012年
11期
9-12
,共4页
引水隧洞%岩爆%应力解除%喷锚支护%爆破方法
引水隧洞%巖爆%應力解除%噴錨支護%爆破方法
인수수동%암폭%응력해제%분묘지호%폭파방법
diversion tunnel%rock burst%stress relief%anchor-plate retaining%blast technolgoy
锦屏二级水电站为超埋深大洞径长隧洞特大型地下水电工程,引水隧洞开挖施工过程中高地应力造成岩爆是施工的重难点之一。在实际施工过程中,采取多种措施相结合的方式进行岩爆的预测、预报及防治。介绍了深孔应力解除爆破施工技术在本工程3号、4号引水隧洞强岩爆段应用情况。
錦屏二級水電站為超埋深大洞徑長隧洞特大型地下水電工程,引水隧洞開挖施工過程中高地應力造成巖爆是施工的重難點之一。在實際施工過程中,採取多種措施相結閤的方式進行巖爆的預測、預報及防治。介紹瞭深孔應力解除爆破施工技術在本工程3號、4號引水隧洞彊巖爆段應用情況。
금병이급수전참위초매심대동경장수동특대형지하수전공정,인수수동개알시공과정중고지응력조성암폭시시공적중난점지일。재실제시공과정중,채취다충조시상결합적방식진행암폭적예측、예보급방치。개소료심공응력해제폭파시공기술재본공정3호、4호인수수동강암폭단응용정황。
JinPing Hydropower Station II is classified as super deep buried, big diameter and long tunnel underground hy- dropower station. Rock burst caused by high stress in diversion tunnel excavation is one of the key difficulties. In the actual construction process, a variety of measures are adopted for rock burst forecast, prediction and prevention, the Application of blasting construction technology for deep hole stress relief in strong rock burst period of diversion tunnel in the project are introduced.