The Design of Early Warning Indexes of Safety Risk for Subway Shield Construction

Abstract

Subway construction has prominent features of concealment, technical complexity and uncertainty of qualitative, even if the shield construction methods with a high safety coefficient is adopted, safety accidents would occur. The establishment of an effective early warning system for subway shield construction is one of the important means to prevent and reduce the occurrence of disasters, while the warning indexes are monitored in real time. This paper proposes an early warning indexes for safety risk of subway shield construction. Based on refers to relevant documents and combined with the results of the investigation, the indexes is designed from four aspects: organization management, site management, doer and physical objects and construction process. It provides reference for early warning and monitoring of shield construction.