Based on the shield tunneling subway crossing through the existing anchor cable group between Wenfu Road Station and Fuming Street Station of Shenyang Subway Line 3 as the background. The paper analyzed various treatment schemes for shield tunneling through anchor cable areas. Through comprehensive comparison of technology, economy, and construction period, combined with the actual project conditions, a scheme was proposed involving the mining primary lining method to excavate tunnels, remove intruding anchor cables, backfill with mortar, and subsequently conduct shield tunneling. Numerical model analyses were performed for various construction stages, and comparative analyses were conducted by integrating on-site monitoring data. The results show that the mining primary lining method can effectively remove anchor cables, and mortar backfilling eliminates obstacles and hidden dangers for subsequent shield construction. The shield advancement proceeded normally without requiring chamber opening. The surface deformation data from construction monitoring is slightly larger than that from numerical analysis, but the deformation patterns are basically consistent, both showing a trend of larger values in the middle and smaller values towards the edges. Engineering practice has proven that the method is safe and reliable, and it can provide a reference for similar projects.

urban rail transit  /  shield tunneling  /  anchor cable intrusion  /  anchor cable removal  /  primary lining of mining method  /  mortar back-filling  /  shield tunneling