Research on Evolution of Environmental Protection and Water and Soil Conservation Risk in Railway Engineering Construction
Research purposes:With the proposal of the concept of green development,higher requirements have been put forward for the environmental protection and water and soil conservation in railway engineering construction.In order to complete the environmental protection and water and soil conservation objective successfully,this paper identified the risk factors of environmental protection and water and soil conservation in railway engineering construction,established a system dynamics model for the evolution of environmental protection and water and soil conservation risk,and conducted simulation analysis using the H railway engineering project as an example to illustrate the risk evolution process and clarify the key tasks of risk prevention and control.Research conclusions:(1)The environmental protection and water and soil conservation risk increases first and then stabilizes during the construction process,and the early stage of build process is the period of risk emergence.(2)Changes in the value of risk factors will have varying degrees of impact on environmental protection and water and soil conservation risk.The insufficient special fund for environmental protection and water and soil conservation has the greatest impact on the risk system,followed by insufficient professional competence of personnel and incomplete environmental background investigation,large construction machinery pollution has a small impact on the system.(3)The adoption of risk warning mechanism into engineering projects is beneficial for controlling environmental protection and water and soil conservation risk,and the magnitude of the early warning value will affect the effectiveness of risk prevention and control.(4)The reseach results can provide reference for the prevention and control of environmental protection and water and soil conservation risk in engineering projects.
railway engineering constructionenvironmental protection and water and soil conservation riskrisk evolutionsystem dynamic
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