Supporting System and Monitoring Analysis of the Cut-cover Tunnel in Shouyi Square of Wuhan

摘要

The 1.39km long tunnel in Shouyi Square of Wuhan is situated at the main artery of the city traffic. To ensure smooth construction of this tunnel project, a varieties of supporting systems such as rubble retaining wall, piles and steel supports, cantilever piles, pile-anchors, shotcrete-bolts are adopted. Meanwhile, safety monitoring is carried out using advanced monitoring instruments and methods with emphasis on the key cultural relic of Hubei province Honglou. The influence of the foundation excavation construction on Honglou is informed by analysis of monitoring result and the monitoring prediction provides forceful support for decision-making during the construction. In this way smooth construction of the foundation excavation and safety of Honglou are ensured.