The Study On Construction Early Warning System For Deep Foundation Ditch Engineering Based Risk Management

The prevention and treating of deep foundation ditch accident was a very important problem in geotechnical engineering, and it is a key problem in the deep foundation ditch engineering practice. This paper is written in the point of risk management. The theoretic and practical study of construction security early warning system of deep foundation ditch engineering is set up using this theory.On the base of former study, the development and characters of deep foundation ditch engineering was expound perspicuity firstly. Aiming at the status and existing questions of the deep foundation ditch engineering accident, the reasons of the deep foundation ditch engineering accidents was analyzed detailedly and generally reference to the articles of abroad and internal. The method of preventing and treating of deep foundation ditch accidents that set up a security early warning system of deep foundation ditch engineering using information-construction engineering practice and risk management was put forward, and, the setting up of the construction security early warning system of deep foundation ditch engineering and the choose of warning targets values etc was study in this paper. In the constructing of deep foundation ditch engineering, the engineering geology and hydrologic geology conditions and the surrounding environment must be consider firstly, and then set up these three information management, evaluation and forecast, decision-making and countermeasure subsystems. So the security early warning system was established. In the process control, the select of forecast control arithmetic and the warning target values are very important steps in the process control and security early warning system of deep foundation ditch engineering. Through the implement of the system in the deep foundation ditch engineering, the engineering optimize design targets of security, rationalize and economy were realize.At last, an intellectualized construction security early warning system of deep foundation ditch engineering was established, and through the practice of different deep foundation ditch projects using the construction security early warning system of deep foundation ditch engineering, it was proved to be applied.