Safety Risk Control Strategy for Construction of Ultra-large Face Shield Tunnels in Sensitive Urban Areas. (English)

The ultra-large face shield tunnel passing through sensitive urban areas is a project with high risk, so effective risk control is required. When designing a tunnel, factors such as nearby buildings, underground pipelines and roads shall be taken into account, and appropriate technical measures shall be taken to ensure the design safety of the tunnel. The area passed through by the tunnel is explored and assessed in detail to find the geology and underground structures in the area, as well as possible problems such as underground water, gas and soil layers, and appropriate measures shall be taken to address these problems. In the process of tunnel construction, monitoring shall be strengthened, and early warning capability shall be improved to promptly discover and deal with problems arising during construction. At the same time, it is necessary to set up thorough emergency measures and response plans to cope with unexpected situations. Before construction, necessary training, safety education and technical training shall be provided to the persons engaged in the tunnel construction to ensure that the construction crews understand the hazards of construction and corresponding safety measures. [ABSTRACT FROM AUTHOR]

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