| The city Construction is developing, underground space’s utilization will be the inevitable trend. As the Deep foundation pit engineering emergence in a large number, it is gradually showing the ultra deep, construction difficulty, complex surrounding environment characteristics and increased risks. In recent years, deep foundation pit engineering accidents have occurred from time to time. The traditional deep foundation pit safety management method is single, one-sided, is still static passive management, as a model, how to realize the deep foundation pit of active, comprehensive, dynamic management, how to introduce a strong applicability, safety evaluation method is convenient for operation and effectively is the main research content.Firstly, according to the basic principle of system safety, this paper analyses five representative accident causing model, find the essential relation of people, objects, environment, management of deep foundation pit engineering system, compare several commonly used methods, choose the semi quantitative MES. The main contents include the deep foundation pit accident analysis, accident statistics, the type of deep foundation pit engineering of hazard source identification, defined the M, E, S, refinement of the parameters of evaluation standards, the establishment of MES evaluation system is used in Chengdu "Huaxia Wan Nian Ming Ju" deep pit engineering practice, safety grade reasonable confirms the actual accident conditions in the project.This paper will build MES security evaluation system of the combination of theory and practice, through the empirical case study for other project, show that the system can carry out the safety management system, dynamic, full of deep foundation pit engineering plays a certain role in guiding. In this paper, the evaluation system, but also for the building industry and other parts of the project the introduction of safety evaluation provides a reference, put forward new ideas for industry safety management. |
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