南疆铁路吐鲁番至鱼儿沟段的大风及路基挡风工程

Strong wind at Turpan-Yuergou section of Nanjiang Railway and windbreak work for subgrade

南疆铁路吐鲁番至鱼儿沟段由兰新铁路吐鲁番车站出站后,沿吐善托盆地西北边缘先后穿越三个泉、小草湖、克尔碱、布尔碱四个风口区。既有线路做了相应的挡风设计,经过十几年的防治,取得了很好的效果。通过对南疆铁路吐鲁番至鱼儿沟段大风的特征分析和既有线的挡风工程设置效果分析,提出了修建复线时应参照既有线防治大风危害及风蚀沙埋的工程治理经验,为南疆铁路吐鲁番至鱼儿沟段复线挡风工程设计和施工提供科学依据。

Starting at Turpan Station,Turpan-Yuergou section of Nanjiang Railway goes along the northwest edge of Tushantuo Basin through four wind gaps,namely Sangequan,Xiaocaohu,Kerjian,and Buerjian.Strong wind constantly hits the railway line;causing erosion to embankment,side slope of cut,bridges,and permanent way signs.At some lee-side sections,the cut was buried under sand. Windbreak design was applied,and has seen good effect after more than ten years' efforts.An analysis of the characteristics of the strong wind and an analysis of the effect of windbreak work of existing railway are given.Experience for wind guard against gale and protections against wind erosion and sand should be borrowed as the basis for windbreak design and construction of Turpan-Yuergou Double Track Railway.