新疆S214省道防沙体系对近地表风沙流的影响  

Influence of sand control system on aeolian sand flow near the ground surface in Provincial Highway 214 in Xinjiang Uygur Autonomous Region

作　　者：李生宇[1,2] 李文明 孙熠[4] 赵淳宇 俞祥祥 王海峰 王世杰[1,2] 屈磊 LI Shengyu;LI Wenming;SUN Yi;ZHAO Chunyu;YU Xiangxiang;WANG Haifeng;WANG Shijie;QU Lei(National Engineering Technology Research Center for Desert-Oasis Ecological Construction,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,Xinjiang,China;University of Chinese Academy of Sciences,Beijing 100049,China;Transportation Bureau of the Second Division,Xinjiang Production and Construction Corps,Korla 841007,Xinjiang,China;Transportation Development Center of the Second Division,Xinjiang Production and Construction Corps,Korla 841007,Xinjiang,China;College of Pratacultural Science,Xinjiang Agricultural University,Urumqi 830052,Xinjiang,China;Highway Science and Technology Research Institute,Xinjiang Production and Construction Corps,Urumqi 830002,Xinjiang,China)

机构地区：[1]中国科学院新疆生态与地理研究所国家荒漠-绿洲生态建设工程技术研究中心,新疆乌鲁木齐830011 [2]中国科学院大学,北京100049 [3]新疆生产建设兵团第二师交通运输局,新疆库尔勒841007 [4]新疆生产建设兵团第二师交通运输事业发展中心,新疆库尔勒841007 [5]新疆农业大学草业学院,新疆乌鲁木齐830052 [6]新疆生产建设兵团公路科学技术研究所,新疆乌鲁木齐830002

出　　处：《干旱区地理》2022年第4期1093-1102,共10页Arid Land Geography

基　　金：中国科学院A类战略性科技先导专项子课题(XDA20030202);国家重点研发计划政府间国际科技创新合作重点专项(2017YFE0109200);中国科学院关键技术人才项目资助。

摘　　要：对新疆S214省道台特玛湖干涸湖盆段防沙体系内外的风沙流输沙和风速进行了同步观测,数据分析表明:观测时防沙体系中阻固沙带已拦截了大量风沙,虽近地表风速被削弱程度不大,但风沙流输沙的43.26%仍可被防沙体系所拦截和固定,而剩余部分则可借助路侧输沙带的较大风力输移到公路下风侧,且不产生路面沙害,表明阻−固−输结合型防沙体系非常适宜单风向强风沙环境。S214省道防沙实践可为其他强风沙环境公路防沙提供重要借鉴经验。Traffic line is an important infrastructure,and aeolian sand activity is a crucial threat to traffic safety.Sand disaster prevention and control is essential for road construction in arid regions.After 1949,China has conducted several road sand disaster control works in arid and semiarid regions and accumulated extensive sand control technology and experience.However,the road sand disaster control in strong wind and sandy areas is less successful than that in other areas.Provincial Highway S214 in the dry lake basin section of Taitema Lake in Xinjiang Uygur Autonomous Region,China is located in such a typical aeolian environment.In recent years,new highway sand prevention projects have been implemented,and the road sand damage has been well controlled.This study investigates the effectiveness of the new sand control system.Synchronous observation of the sand transport via wind flow and wind speed using the sand control system showed that a large amount of aeolian sand was intercepted in the sand-blocking and sand-fixing belts of the sand control system,and the wind speed near the ground surface remained strong.However,43.26%of the sand transport can still be intercepted and fixed by the sand control system,and the rest can be moved to the downwind side of the highway by the large wind in the sand-transporting belt without damaging the road surface sand.These results showed that the sand control system with its combined resistance and solid transport is suitable for the strong sand environment with unidirectional wind in the Taitema Lake dry lake basin.This aeolian sand prevention practice serves an important reference for highway sand prevention in other areas with strong aeolian environment.

关 键 词：强风沙环境 防沙体系 输沙带 风沙流输沙 防沙效益 

分 类 号：X171.4[环境科学与工程—环境科学] P425.55[天文地球—大气科学及气象学]