Research On Isolation Of Harmful Energy In Construction Of Deep Foundation Pit Of Subway

Using energy theory to analyze the causes of accidents and manage safety is a very meaningful research direction.Currently,it is mostly used in safety management in major energy fields such as chemical industry.Recently,the management and control method based on the energy isolation theory has been applied in the operation of subway vertical transportation and other operations,but there is not much research on deep foundation pit operations.In order to prevent and reduce accidents in subway deep foundation pits,this research clarifies the causes of accidents from the perspective of energy isolation,and proposes harmful energy isolation methods to prevent and reduce safety accidents in subway deep foundation pits.The specific work is as follows.Firstly,this research points out the problems of safety management method existing in the traditional deep foundation pit,sums up the list of common workers’ unsafe behaviors and unsafe states of objects,with a view to proposing a better safety management method.Then clarify the relationship between the unsafe behavior of people and the unsafe state of things and harmful energy from the perspective of energy.Based on the analysis of harmful energy and the list of unsafe behavior of people and the unsafe state of things,completes the list of harmful energy.Based on the harmful energy list,the isolation method of harmful energy "data collection-energy identification-safety warning-energy isolation" is proposed: Collect on-site harmful energy data through on-site inspection and use of information monitoring technology;inspectors identify and identify harmful energy through visual inspection and use of information technology analysis;through the harmful energy isolation system to automatically alarm some harmful energy and upload to the platform early warning;on-site workers make corrections and on-site construction and supervision assist to take measures to isolate harmful energy.Finally,the harmful energy isolation method is applied to a deep foundation pit construction project of a subway station.The results show that the harmful energy existing on the site can be effectively identified and isolated,which can ensure the safety of the deep foundation pit construction process of the subway.Through the above research,the harmful energy "data collection-energy identificationsafety warning-energy isolation" isolation method proposed in this paper can effectively isolate the harmful energy existing in the construction site of the deep foundation pit of the subway,and reduce the unsafe behavior of workers and the safety of objects during construction safe state and prevent the occurrence of safety accidents.The method proposed in this research not only provides a good reference for other similar studies,but also provides a new safety management and control method for the on-site production work of other subway deep foundation pit construction.