Advance Ductule Construction in Auxiliary Support of Tunnel Weak Crushed Rock Strata
In order to ensure the stability of the weak and crushed rock strata of the tunnel in the process of shallow burying and subsurface excavation,and avoid quicksand or landslides,it is necessary to take protective measures such as advanced reinforcement or common support for the soil mass before excavation.This paper analyzes the operation points and key technologies of advanced ductule grouting construction in the auxiliary support project of weak and crushed rock strata of tunnels,summarizes the deficiencies according to the previous construction experience,and puts forward rectification suggestions to ensure that the construction technology can maximize the construction effect of the tunnel project and create better social and economic benefits for tunnel engineering.
tunnel engineeringweak crushed rock strataadvance ductule groutingauxiliary supportconstruction
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