Determining Method and Risk Assessment of Strong Wind Region along High － speed Railway in China
MA Shu － hong1，MA Yun － Juan2，CHENG Xian － Dong3，GE Feng4，LI Zhen － Shan1，ZHANG Ji － Liang3，LIU Zhi －Ming5
1． Peking University，Beijing 100871，China; 2． Ktk Anda Traffic Information Technology Co． Ltd，Beijng 100081，China; 3． Transportation Department，Ministry of Railways，Beijing 100084，China; 4． Academy of Macroeconomic Research，Development and Reform Commission，Beijing 100038，China; 5: China Academy of Railway Sciences，Beijing 100081，China
Abstract：Research purposes: The determining method and risk assessment of the strong wind region along high － speed railway relate to the scientificalness of distribution of monitoring spots for disaster prevention，to the representativeness and reliability of acquisition of data on instantaneous wind speed and wind direction and to providing reasonable speed －limit instructional information for a driving command and control system or to providing decision － making basis for starting up the emergency plan for the purpose of achieving the aim of ensuring safe and high － efficient railway traffic．
Research conclusions: For the maximum instantaneous wind speed in the area where is 4 m high from the rail surface along the high － speed railway，the level distribution feature of the design value V4_2max of the maximum instantaneous wind speed biennially is basically the same as that of the design value V4_30max of the maximum average wind speed every thirty years． In this paper，it is proposed the design value V4_2 max of the maximum instantaneous wind speed biennially in any place where is 4 m high from the rail surface along the high － speed railway is the master control factor for determining the strong wind region，and the included angle ( β) between the line orientation and the main wind direction and the deflection angle ( smaller than 10° ) of the strong wind regions of the high － filling embarkment，the viaduct and the curved conduit of bridge must be gradually optimized． The strong wind ( gust) coefficient is calculated with the linear regression equation of least square method，getting good effect． Therefore，it proves the optimal scientificalness of the disaster prevention and distribution principle of the safety monitoring point in the strong wind region along the high － speed railway，and representativeness and reliability of the acquisition of data on the instantaneous wind speed and wind direction． It can provide the reference to optimizing the monitoring point distribution plan of the strong wind region along the high － speed railway in China and instituting the technical standard and criterion for the wind fence distribution．
马淑红，马韫娟，程先东，戈峰，李振山，张季良，刘志明. 我国高速铁路沿线强风区间的确定方法及风险评估[J]. 铁道工程学报, 2011, 28(3): 37-45.
MA Shu － hong，MA Yun － Juan，CHENG Xian － Dong，GE Feng，LI Zhen － Shan，ZHANG Ji － Liang，LIU Zhi －Ming. Determining Method and Risk Assessment of Strong Wind Region along High － speed Railway in China. 铁道工程学报, 2011, 28(3): 37-45.
Ma Yunjuan，Ma Zhifu，Fan Yan，etc． Study on The Optimization of Wind Sensor Distribution along High －speed Railways［J］． China Science and Technology Information，2010( 21) : 304 － 312．
Ma Zhifu，Zhou Xiaobin，Ma Yunjuan，etc． Study on the Countermeasures to Strong Cross Winds Affecting Beijing － Shanghai High Speed Railway ( Xuzhou －Shanghai Section ) ［R］． Beijing: Academy of Macroeconomic Research Development and Reform Commission，2010．
Ma Shuhong，Ma Yunjuan，Li Jianqun，etc． Study on the Technical Standard and Parameters for Safe Operation of CRH3 EMU in Strong Winds along Beijing －Tianjin Intercity Railway［J］． Railway Quality Control，2009( 2) : 7 － 12．
Ma Shuhong， Ma Zhifu． Effects of Maximum Instantaneous Wind Velocity on the Safety of CRH3 CMU of Beijing － Tianjin Intercity Railway［J］． China Science and Technology Information，2008 ( 21) : 285 －286．
Ma Yunjuan，Ma Shuhong． Study on the Design Wind Velocity for Bridges Along Passenger － dedicated High －speed Railways in China［J］． Railway Quality Control，2009( 10) : 34 － 37．
Ma Shuhong，Ge Feng，Chen XiaoGuang，etc． The Spatial － temporal Distribution of Maximum Instantaneous Wind Speed and Control of Active Dunes in Gurbantunggut Desert［J］． Resources Science，2007( 4) : 46 － 53．
Ma Shuhong， Ma Yunjuan． Effects of Maximum Instantaneous Wind Velocity on the Safety of High －speed Train and Its Control［J］． Journal of Railway Engineering Society，2009( 1) : 11 － 16．
Ma Shuhong，Li Zhenshan，Liu Tao，etc． Variation Trend of Surface Humid Index and Regional Characteristics of Roadways in XinJiang in Recent 50 Years［J］． Arid Land Geography，2009( 5) : 746 － 752．
Misu Y，etc． Study on the Strong Wind Estimation and Train Operation with Wind Observation and Numerical Analysis ［C］/ /The 20th Symposium on Wind Engineering，2008．
2011, Vol. 28 
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