塔里木沙漠公路堤式横断面的设计研究
Design and Investigation on Embankment Cross-section of Tarim Desert Highway
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- DOI:
- 作者:
- 郭玉起
GUO Yu-qi
- 作者单位:
- 天津经济技术开发区西区办公室, 天津 300462
West Zone Office of Tianjin Economic-Technological Development Area, Tianjin 300462, China
- 关键词:
- 沙漠公路;路堤;边坡坡度;设计
desert highway;road embankment;side slope;design
- 摘要:
- 沙漠地区公路的破坏形式主要有路基整体稳定性破坏、沙埋破坏和风蚀破坏,因此其设计思想是选择合理的道路横断面形式,使得路基本身强度、整体稳定性得到保证,同时避免各种形式的沙害,保证沙漠公路的正常运营。文章通过研究沙粒蠕移运动的特点及规律,建立了沙粒在一定条件下的物理运动模型,从而推导出塔里木沙漠公路堤式横断面的理论坡度,并从路堤自身的整体稳定性方面和防风固沙工程实践的角度论证了沙漠公路堤式断面理论坡度的可行性,为塔里木沙漠公路的横断面设计提供了一些理论依据,也为其他沙漠公路的横断面设计提供参考。
Main failure patterns of desert highways are integral roadbed instability, sand burial and wind erosion. The design philosophy should be to choose rational road cross-section form so as to ensure the roadbed strength and stability, at the same time, to avoid various sand hazards. After investigating the charac-teristics and rules of sand grain squirming motion, the physical motion model of sand grains was established under certain conditions and the theoretical slope of the embankment cross-section of desert highway was de-rived. The feasibility of the theoretical slope was demonstrated with respect to integral roadbed stability as well as wind-proof and sand consolidating practice.2007,05(05): 23-25 收稿日期：2007-4-11分类号：U419.91作者简介：郭玉起(1968-), 男, 天津人, 工程师, 毕业于西安公路学院公路与城市道路专业, 1991年至1998年参与国家课题 “ 塔里木沙漠公路工程技术研究”工作, 参与塔里木 2 km 试验段、塔中井场路、塔里木沙漠公路南段35 km 等多条公路的勘察设计工作, 现从事设计和管理工作.参考文献：
[1] 赵性存.中国沙漠铁路工程[M]. 北京: 中国铁道出版社, 1988.
[2] 董治宝.中国风沙物理研究五十年(Ⅰ)[J]. 中国沙漠, 2005, 25(3): 293-305.