| The prevention and treating of deep foundation ditch accident is a very important problem in geotechnical engineering, and it is a key problem in the deep foundation ditch engineering practice. A process control theory in system engineering was used in this paper. The theoretic and practical study of the process control and 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 process control and security early warning system of deep foundation ditch engineering using the process theory of system engineering was put forward, and, the setting up of the process control and security early warning system of deep foundation ditch engineering and the choose of warning targets values etc was study in this paper. In the designing and constructing of deep foundation ditch engineering, the engineering geology and hydrologic geology conditions and the surrounding environment must be consider firstly, and then decide the control targets of the deep foundation ditch engineering secondly, the measurement parameters of the process control of deep foundation ditch engineering were selected subsequently. So the process control scheme was establish. 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 in the dynamic construction of deep foundation ditch engineering.At last, through the practice of different deep foundation ditch projects using the process control and security early warning system of deep foundation ditch engineering, the advises of design and construction of deep foundation ditch engineering dynamic process by using the process control and security early warning system of deep foundation ditch engineering were put forward, combining the analysis of in-site engineering measurement data. The method was proved having a extensive engineering application foreground. |