预制式设备安装系统在输水盾构隧洞的研究应用

Research and Application of Prefabricated Equipment Installation System in Shield Water Conveyance Tunnel

盾构法输水隧洞在水利工程中应用广泛,但大部分工程后期设备安装需在盾构管片上打孔,为避免盾构隧道因打孔植筋带来的盾构管片结构的安全性破坏,在管片内预埋不锈钢套筒,后期结合外挂槽道构成了盾构隧道设备的新型安装系统。这种预制安装技术将后期设备安装工序前置,提高盾构隧洞设备安装质量和施工效率,降低盾构隧洞施工风险和成本。

Shield water conveyance tunnel is widely used in hydraulic engineering,but the shield segment needs to be drilled to install most of the equipment in the later stage of the project.In order to avoid the safety damage of the shield segment structure caused by drilling and planting reinforcement in the shield tunnel,the stainless steel sleeve is embedded in the segment.In the later stage,combined with the external hanging channel,a new installation system of shield tunnel equipment is formed.This prefabricated installation technology will lead the later equipment installation process,improve the installation quality and construction efficiency of shield tunnel equipment,and reduce the risk and cost of shield tunnel construction.