干旱区生态环境知识资源中心(Arid): 锡北地方铁路风沙防治措施研究

Arid

	锡北地方铁路风沙防治措施研究
其他题名	Sand flow control measures of the Xitieshan to North Hobson local railway
	吴亚平 1; 潘高峰 1; 彭尔兴 1; 王军 2; 彭萼辉 2; 耿福志 2
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2016
卷号	39 期号:6 页码:1247-1254
中文摘要	为了探究高含盐细砂地区风沙流对铁路运营的影响,为该类地区铁路的设计及修建提供理论依据和实践参考,开展了以锡铁山至北霍布逊铁路线建设为实例的风沙防治措施研究。首先根据工程地质条件确定出了混凝土插板式挡沙墙与地表石方格相结合的风沙灾害防治方式;然后通过CFX软件对风沙湍流场进行了有限元数值模拟,发现了挡沙墙之间的距离对防风沙效果的影响规律;最后根据数值模拟结果得出了1.5 m高的挡沙墙之间的最佳距离为30 m,并进行了实地监测验证了其良好的防风沙效果,并基于实测数据(挡沙墙附近积沙高度达67.5 cm)推荐定期清理墙后积沙的时间3 a。
英文摘要	China is one of the most serious desertification countries in the world. With the development of western China,more and more new railway must be built across the desertification regions where the ecological environment is extremely vulnerable. Therefore,aeolian hazards become one of the main environmental problems threatening the railway operation safty in the region. In order to explore the influence of sand-driving wind on railway operation and provide theoretical basis and practical reference for the design and construction of the railway in high salinity and fine sand areas,the research was carried out on sand control measures in Xitieshan to North Hobson railway construction in Qinghai Province,China. Firstly,the railway is in the fine sand area with high salinity,and plants in this area are difficult to survive. Vegetation protection has no effect. So the combination of concrete retaining wall with plank and surface stone-checker is used to prevent and control the occurrence of wind and sand damage. The stone-checker is layout by 1 m*1 m,and the height of the sand control wall is 1.5 m. Secondly,according to sandstorm climate data,numerical simulation of finite element method for prevention system of wind drift sand is conducted by making use of CFX software. In the procedure,the motion law of sand flow is found. Research results show that the reasonable distance of retaining walls is 30 m. Finally,based on the field monitoring data in 2 years,this protection measure of wind drift sand is effective. But to do that protection measure effectively,a large amount of sand deposition behind retaining wall should be periodically cleaned up. And a cleaning cycle of 3 years is recommended according to the distributed regularity of sand behind retaining wall. The results in this paper can provide references for prevention and treatment of wind drift sand in railway construction in such areas.
中文关键词	高含盐 ; 风沙流 ; 挡沙墙 ; 数值模拟
英文关键词	high salinity sand-driving wind sand control wall numerical simulation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5877813
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234270
作者单位	1.兰州交通大学土木工程学院, 兰州, 甘肃 730070, 中国; 2.中铁十六局集团有限公司, 北京 100018, 中国
推荐引用方式 GB/T 7714	吴亚平,潘高峰,彭尔兴,等. 锡北地方铁路风沙防治措施研究[J],2016,39(6):1247-1254.
APA	吴亚平,潘高峰,彭尔兴,王军,彭萼辉,&耿福志.(2016).锡北地方铁路风沙防治措施研究.干旱区地理,39(6),1247-1254.
MLA	吴亚平,et al."锡北地方铁路风沙防治措施研究".干旱区地理 39.6(2016):1247-1254.