Method Of Water Environmental Risk Assessmenton Highway Construction Project

As China's rapid economic and social development, accelerate the pace of highway construction and increase the scale, the impact of the ecological environment,the surface water through towns and villages by the crossing road has been increasing. In recent years, due to road traffic accidents caused by the increasing incidents of environmental damage. Therefore, the State Environmental Protection Administration has issued 04 "building projects environmental risk evaluation of technical guidelines" (HJ/T169-2004), On environmental risk assessment of construction projects put forward more specific and detailed requirements. Therefore, in the environmental impact assessment of highway construction projects, environmental risk assessment of traffic accidents have become an integral part of the content.This paper research on the water environmental risk assessment methods of highway construction.According to a summary of their predecessors and theory, Were used to calculate the consequences of different models of 'provincial highway S305 line of Zigong in Chuk Yuen Lee of the road paved to the Extension Project' involved in the risk of the Tuojiang River, Then compared the results with the actual draw the conclusion that more in line with the application of the model, On this basis, using of advanced computer tools, and the preparation of the necessary computer programs, which makes the consequences of the model established in the course of the application of the model more in line with the objective reality, so that the risk assessment conclusions from the better utilization of the actual work."Construction Project Environmental Risk Assessment Technology Guide" has more precise routes in the form of point sources of environmental risk assessment techniques are, By the incident and the probability of the consequences of seeking balance, then get the estimated value. However, on highway construction projects, as the highway during the operation of dangerous chemicals across the surface transport vehicles along the banks of rivers or when because of traffic accidents, caused by chemicals or toxic substances leaking into the river's environmental risk estimates, due to the accident hazard C quantitative difficulties, has not yet given the risk value of the technical route. Technical methods are being formed, the solution of such problems, is still belong to the forefront of the field of discipline problems.