Tunnel reinforcing method for controlling displacement of adjacent shield tunnel caused by foundation pit excavation

The invention relates to the technical field of tunnel reinforcement, in particular to a tunnel reinforcement method for controlling displacement of an adjacent shield tunnel caused by foundation pit excavation. Comprising the following steps that S1, a shield tunnel is anchored through a shield tunnel reinforcing anchor rod; and S2, blasting type grouting is conducted between the shield tunnel and the foundation pit. Prestress can be applied for active supporting, the grouting solidification effect of grout can be improved, tunnel displacement is effectively controlled, and tunnel deformation and damage are prevented. 本发明涉及隧道加固技术领域，特别是一种控制基坑开挖引起邻近盾构隧道位移的隧道加固方法。包括以下步骤：S1、通过盾构隧道加固锚杆对盾构隧道进行锚固；S2、在盾构隧道和基坑之间进行爆破式注浆。既能够施加预应力主动支护，又能够提高浆液的注浆固化效果，有效地控制隧道位移，防止隧道变形破坏。