The Research Report Of Water Environment Protection Methods At Yangcheng Lake Bridge Of The Beijing-Shanghai High-Speed Railway During Construction Time

Environmental protection is an important part of railway construction during the construction time.In order to solve the conflicts between demand and transport capacity of passengers and freight service,railway construction in China is speeding up year after year and makes great contribution to the economic development,however,in the same time,its adverse effect to the environment is more and more striking,the influence seems particularly outstanding when the railway lines need to cross sensitive surface water.The main pollutant of surface water that comes from the railway construction includes drilling mud and boringmud produced by the bored pile construction、oil wastewater produced by construction machineries and boats、solid waste spattered into water during the construction and domestic sewage produced by constructors, the pollutants that caused the most obvious environmental impact are drilling mud、boringmud and petroleum pollutant.At present,the construction technology of bridge construction is trestle technology, but it can not assure the zero pollution during the bridge construction, is a research focus in the water environment protection during the bridge construction that how to put forward an practical and effective program derived from the very source of construction technology.The research report selected the water environmental protection measures during the construction of Yangcheng Lake bridge of The Beijing-Shanghai High-Speed Railway cross the sensitive surface waiter Yangcheng Lake, used the method of mass balance to compare the quantity of SS pollutan、petroleum pollutant drilling mud、boringmud produced by the double row pile cofferdam construction technology and trestle technology,then detailedly analysed the water environmental protection method、protective result and its shortcomings of double row pile cofferdam construction technology,at last summarized the key point of water environmental protection in the double row pile cofferdam technology,provided some more or less reference to the chose of construction technology of the linear projuect across sensitive water.