气候对防风系统布点影响的研究  

Research on the Influence of Climate on Distribution of Wind-force Monitoring Spots of Windbreak System

作　　者：杜广宇[1] 李乾社[1] 

机构地区：[1]中铁第四勘察设计院集团有限公司,武汉430063

出　　处：《铁道工程学报》2008年第1期17-21,共5页Journal of Railway Engineering Society

摘　　要：研究目的:不同气候条件下产生的大风,有着各自的特征。本文阐述在铁路防风系统设计中,如何依据大风不同的特征,布置风力监测点,优化防风系统性能的方法。研究结论:在进行监测点布点计算时,依据气候条件,需要不同的统计方法。对于季风型气候应以极值Ⅰ分布为统计依据,台风型气候应以皮尔逊III型分布为统计依据,在混合型气候区域应首先确定主导的气候类型,然后再选择对应的统计方法。Research purposes： Strong winds have its own characteristics under different climate conditions. The methods of how to distribute the windbreak monitoring spots and optimise the performances of the windbreak system in design of railway windbreak system are demonstrated in this paper according to the different strong winds characteristics. Research conclusions：The different statistics methods are needed to calculate the distribution of wind -force monitoring spots according to the different climate conditions. To monsoon climate, the extremal I distribution should be taken as the basis, to typhoon climate, the Peason Ⅲ distribution should be taken as the basis, and to mixed climate, first of all, the dominant climate should be determined, then the relative statistics method should be selected.

关 键 词：防风预警 侧风 皮尔逊Ⅲ型分布 

分 类 号：P46[天文地球—大气科学及气象学]