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| 我国高速铁路沿线强风区间的确定方法及风险评估 | |
| 引用本文： | 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(3). |
| 作者姓名： | 马淑红 马韫娟 程先东 戈峰 李振山 张季良 刘志明 |
| 作者单位： | 1. 北京大学,北京,100871 2. 今创集团,北京,100081 3. 铁道部运输局,北京,100844 4. 国家发改委宏观院,北京,100038 5. 中国铁道科学研究院,北京,100081 |
| 基金项目： | 铁道部科学技术司重大课题项目(2009G027) |
| 摘 要： | 研究目的:高速铁路沿线强风区间的确定及风险评估,关系到安全防灾监测布点的科学性和采集瞬时风速和风向数据的代表性及可靠性,为行车指挥控制系统提供较为合理的限速指令信息,或为启动应急预案提供决策依据,从而达到安全、高效行车的目的。研究结论:高速铁路沿线任意里程距轨面4 m高处最大瞬时风速,2年一遇设计值V4_2max与10 mim平均最大风速和30年一遇设计值V4_30max其水平分布特征基本一致。提出以高速铁路沿线任意里程,距轨面4 m高处最大瞬时风速,2年一遇设计值V4_2max为强风区间的确定主控因素,对于强风主风向与线路走向之间夹角以及高路堤和高架桥、特大桥弯道强横风区间偏角<10°区域,必须进行逐步优化。利用基于最小二乘法的线性回归方程,对强风(阵风)系数进行计算后,发现方程的效果很好。从而验证了高速铁路沿线强风区间安全防灾系统布点原则优化的科学性,以及采集瞬时风速和风向数据的代表性及可靠性。为我国高速铁路强风区间布点方案优化和防风栅布设技术标准和规范的制定提供了科学依据。 |
| 关 键 词： | 高速铁路沿线 强风区间 距轨面4.0m高度处 最大瞬时风速 |
Determining Method and Risk Assessment of Strong Wind Region along High-speed Railway in China |
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| 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[J].Journal of Railway Engineering Society,2011(3). | |
| Authors: | MA Shu-hong MA Yun-Juan CHENG Xian-Dong GE Feng LI Zhen-Shan ZHANG Ji-Liang LIU Zhi-Ming |
| Institution: | 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 100081,3.Transportation Department,Ministry of Railways,Beijing 100084,4.Academy of Macroeconomic Research,Development and Reform Commission,Beijing 100038,5: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 o... |
| Keywords: | high-speed railway strong wind region area of 4 m height from the rail surface maximum instantaneous wind speed |
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