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对于高 45 .6 m、宽 14.2 m、长 2 1.9m的地下洞室的开挖 ,视洞室围岩稳定要求 ,在开挖施工中采用了固结灌浆、深锚杆超前加固处理增加闸室顶部岩体强度 ,利用箱型衬砌钢筋混凝土加固洞壁的施工技术 ,并实行了严密的施工方案。
For excavation of underground caverns with height of 45.6m, width of 14.2m and length of 2 1.9m, stability requirements of surrounding rock in the cavern are adopted. Consolidation grouting is adopted in excavation and reinforcement is advanced by deep anchor bolts Roof rock mass strength, the use of box-type reinforced concrete tunnel wall construction technology, and the implementation of a rigorous construction program.