国道219温泉至霍尔果斯越岭段公路雪害选线研究  

Study on Snow Damage Alignment of National Highway 219 from Hot Springs to Highway

作　　者：赵乐[1] 高榕[2] ZHAO Le;GAO Rong(CCCC First Highway Consultants Co.,Ltd.,Xi'an 710068,China;School of Civil Engineering,Xijing University,Xi'an 710123,China)

机构地区：[1]中交第一公路勘察设计研究院有限公司,西安710068 [2]西京学院土木工程学院,西安710123

出　　处：《路基工程》2024年第3期15-21,共7页Subgrade Engineering

摘　　要：基于横穿西天山山脉的G219线温泉至霍尔果斯公路建设项目,通过沿线气象资料的收集分析,得到气温、降水、风速的时空分布情况;采用积雪环境信息遥感调查的方法,分析影响路线及路基设计的积雪类型、分布范围、厚度和成因,模拟分析雪崩堆积区的形态、面积、位置、堆积体特征、雪崩量、雪崩裂点位置,并对风吹雪灾害进行分级评估。根据雪害分布及发育情况,结合地形地质条件,对克孜勒隧道两处进口和两处出口方案进行组合比选,推荐采用路线绕避、抬高路基、设置挡雪墙、明洞、防雪棚洞等处置措施,在雪害整体可控、预留升级改造条件、造价合理的前提下,推荐采用K线方案。Based on the highway construction project of the national highway G219-line hot spring to Khorgos traversing the Western Tianshan Mountains,the spatial and temporal distribution of temperature,precipitation,and wind speed is obtained by collecting and analyzing meteorological information.The method of remote sensing investigation of snow environmental information is used to analyze the type,distribution range,thickness and causes of snow that affect the route and roadbed design.The morphology,area,location,accumulation characteristics,avalanche volume,and location of avalanche fissure points in the avalanche accumulation area are simulated and analyzed,the grading assessment of wind-blown snow disaster is conducted.According to the distribution and development of snow hazards,combined with the topographic and geological conditions,the two inlets and two outlets of the Kyzyl tunnel are compared for the combination of programs.It is recommended to comprehensively adopt the disposal measures such as route by passing,elevating the roadbed,setting up snow retaining walls,open holes,snow-proofing shed holes,etc.,and under the premise of reasonable cost that the snow hazards as a whole are controllable,and that the conditions for upgrading and reconstruction are reserved,the adoption of a K-line program is recommended.

关 键 词：积雪环境 雪崩堆积区 风吹雪 地质选线 雪害防治 安全性 经济性 

分 类 号：U412.32[交通运输工程—道路与铁道工程]