哈密至将军庙铁路大风观测与研究

Observation and study on big wind towards Hami-Jiangjunmiao railway

根据哈密至将军庙铁路沿线大风形成机理及地形地貌特点，在利用百里风区段既有兰新铁路和附近气象站资料的基础上新建了5个大风观测点，为哈将铁路的选线、防风设计及安全行车提供依据。观测数据分析结果表明：岭南段极大风速值最大，越岭段次之，大风风期长，季节分布特征明显，此两段应作为重点防风段落；各观测点极大风速值出现时间点相差2～3h；极大风速值随各观测点的位置呈“钟形”分布，以越岭段风口为中心向线路起点和终点两侧递减，距离风口越近，风速越大，距离风口越远，风速越小；1，2，3号观测点风向集中在 N方向，4号观测点风向集中在 NW 至 WNW 方向，5号观测点风向主要集中在 W方向。

According to the fresh gale formation mechanism and topography features along the Hami-Jiangjunmiao railway,5 strong wind observation points were built based on the data of existing Lan-xin railway which passes through 50 km wind area and nearby meteorological station and the observed data are analyzed and studied. The results showed that the maximum wind speed appears in south of Tianshan and second biggest wind speed is in crossing section,where the windy time is long and seasonal distribution is clear,and these two areas are the key areas for wind protection; the time gap of maximum wind speed between each wind observation point is 2 ~3 h;the maximum wind speed shows a bell-shaped distribution with the position of each observation point,the crossing section tuyere as the center decreases to the beginning and end of line,and the wind speed is larger close to the tuyere and the wind speed is smaller far away from the tuyere; the wind direction of No. 1,2,3 observation point focus on N,No. 4 focus on NW to WNW,No. 5 mainly focus on W,which could provide a basis for line selecting,windproof designing and safe driving.