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以石山口灌区南干六支渠新建隧洞的施工过程为研究对象,以施工设计为依据,以相关技术规范为指导,重点研究应用了超前支护、钢拱架支撑及锚喷联合支护等地下暗挖施工工艺,现场的施工效果表明:超前小导管、注浆加固围岩的超前支护、钢拱架支撑及锚喷联合支护的初期支护措施在豫南地区土质隧洞地下暗挖工程施工中是适用的,同时提出了注意要点,为同类工程的设计与施工提供了借鉴。
Taking the construction process of six new tunnels in the southern part of Shishankou Irrigation District as the research object, taking the construction design as the basis and the relevant technical specifications as the guidance, the underground construction with advanced support, steel arch support and anchor and shotcreting joint support are mainly studied Excavation of the construction process, the scene of the construction results show that: ahead of the small catheter, grouting reinforced surrounding rock advance support, steel arch support and anchor spray joint support measures in southern Henan underground tunnel excavation project The construction is applicable, at the same time put forward the points for attention, for similar projects to provide reference for the design and construction.