Risk Management, Applied Research, In Deep Foundation

Along with the progress of technology, high-rise and super high-rise buildings spring up continuously, underground space was used extensively, and excavations grow deeper and deeper. Meanwhile owing to various uncertainty factors of excavation constructing environment and its uniqueness, there undoubtedly exist chances and possibilities to deviate from expected objects, i.e. there are risks. This will cause serious loss if not proper handled. Therefore, it becomes an urgent subject of reducing accident possibility and hazard loss in deep excavation constructions.In this paper, principles and procedure of risk management are analyzed first, as well as traits, contents and operating flows of risk management in deep excavation constructions. Then main processes of deep excavation risk management are studied from two aspects of risk analysis and risk treatment. And an attempt of systematizing, sequencing and institutionalizing risk management in deep excavation constructions is carried out. Risk identification is the foundation of risk management; risk estimation and risk assessment are the pivotal issues of risk management; while risk treatment is the core of risk management. These parts of risk management form a dynamic closed loop system of risk management. This paper discusses foundations, methods, and concrete operating flows of risk management stages in deep excavation constructions. Finally, analytic hierarchy process (AHP) is used in risk management in deep excavation construction of certain mail handling center.Risk management in deep excavation construction is a fairly complex system problem. On basis risk management theories, certain opinions of thoughts and frames in analyzing and solving risk management problems are proposed for direction of risk management in deep excavation construction.