Research on safety risk management of civil construction projects based on risk matrix method

In the view of the safety characteristics of open-air operation, high mobility and low safety quality of personnel in construction projects, in order to facilitate the systematic management of the safety risks of construction projects, the risk pre-control study of civil construction projects is carried out by using the risk matrix method in advance, the risk sources are identified according to the work task analysis method, and all work tasks and the specific processes of each task are listed in the form of a list. Identifying four types of hazard sources in all work tasks under existing working conditions, including human, machine, ring and pipe, and analyzing them using the risk matrix method, determining the risk value of the hazard sources and classifying the identified risk factors(hazard sources) by physical failure, human error, environmental factors and management deficiencies, It is convenient to take measures from management concept, technical method selection, organizational setting, staffing, system building and so on to improve risk management capability. (paper)