同步注浆层刚度对盾构输水隧洞抗震性能的影响  

Influence of synchronous grouting layer stiffness on seismic performance of shield tunnel

作　　者：李根 LI Gen

机构地区：[1]辽宁省水利事务服务中心,辽宁沈阳110003

出　　处：《东北水利水电》2023年第8期44-46,72,共4页Water Resources & Hydropower of Northeast China

摘　　要：在输水隧洞盾构施工过程中,将同步注浆层作为减震层可以加快施工进度,减少工程投入,具有重要的经济意义和技术价值。此次研究以具体工程为背景,利用数值模拟方式,探讨盾构施工输水隧洞同步注浆层刚度对隧洞抗震性的影响。结果显示,在盾构工程设计施工过程中,减小同步注浆减震层刚度可以有效提升输水隧洞抗震性。In the process of tunnel shield construction,using synchronous grouting layer as damping layer can speed up construction progress and reduce project investment,which has important economic significance and technical value.In this study,the influence of the stiffness of synchronous grouting layer on the seismic resistance of the tunnel under shield construction is discussed by numerical simulation.The results show that reducing the stiffness of the damping layer can effectively improve the seismic resistance of the tunnel during the design and construction of shield engineering.

关 键 词：输水隧洞 同步注浆层 减震层 抗震性 

分 类 号：TV431[水利工程—水工结构工程]