将淖铁路全季节风沙特征分析  

Analysis of Wind-Sand Characteristics of Jiangjunmiao-Naomaohu Railway in the Full-sandy Areas under the Whole Season

作　　者：寇小军[1] 刘鑫[1] 李子政 张秋隼 张莹晨 沈宇鹏[2] 张雪东 KOU Xiaojun;LIU Xin;LI Zizheng;ZHANG Qiusun;ZHANG Yingchen;SHEN Yupeng;ZHANG Xuedong(CCCC Second Highway Engineering Bureau Co.,Ltd.,Xi'an 710065,China;College of Civil and Architectural Engineering,Beijing Jiaotong University,Beijing 100044,China;CCCC Railway Design and Research Institute Co.,Ltd.,Beijing 100088,China)

机构地区：[1]中交第二公路工程局有限公司,西安710065 [2]北京交通大学土木建筑工程学院,北京100044 [3]中交铁道设计研究总院有限公司,北京100088

出　　处：《路基工程》2024年第2期21-30,共10页Subgrade Engineering

基　　金：甘肃省科技计划项目(22YF11GA302);中交集团2021年重点研发项目(2021-ZJKJ-18);中央高校基本科研业务费专项资金(2023-JBZY-026)。

摘　　要：风沙灾害是新疆将淖铁路建设和运行的主要危害,设置12个采沙监测站,基于现场试验,系统性地分析将淖铁路风沙区全季节风沙特征,并提出将淖铁路沿线防沙治沙综合体系。结果表明:将淖铁路沿线积沙随沙源丰富程度增加而增加,并随着高度增加,沙量粒径减小,由不连续级配转变为连续级配;铁路沿线起沙风风速呈U型分布,起沙风方向整体以W、WNW及WSW为主;铁路沿线风沙特征受季节性变化的影响明显;风沙防护设计应尽量不破坏自然地表,进行动态防护,构建“固沙+阻沙”的综合防治体系。Wind-sand disaster is the main hazard to the construction and operation of Jiangjunmiao—Naomaohu Railway in Xinjiang.By setting 12 sand-mining montoring stations,based on the field test,this paper systematically analyzes the characteristics of wind and sand along the Jiangjunmiao—Naomaohu Railway in the whole season,and puts forward the comprehensive system of sand prevention and control along the Jiangjunmiao—Naomaohu Railway.The results show that the sand collection along the railway increases with the increase of the richness of the sand source,and with the increase of the height,the particle size of the sand collection capacity decreases,the discontinuous change into the continuous gradation.The wind speed of the sand-blowing wind along the railway is U-shaped,and the direction of the sand-blowing wind is mainly W,WNW and WSW.Seasonal changes have an impact on the characteristics of wind and sand along the railway.The sand protection design should try not to destroy the natural surface,carry out dynamic protection,and build a comprehensive protection system of"sand fixation+sand resistance".

关 键 词：铁路路基 防沙治沙体系 采沙监测站 风沙特征 积沙量 起沙风 风沙危害 

分 类 号：U418.56[交通运输工程—道路与铁道工程]