摘要
在全面分析国道309线(宁夏境)地质条件的基础上,对沿线工程地质条件分段进行了评价,认为地貌复杂、岩性破碎,尤其是大量发育的滑坡、泥石流和广泛分布的湿陷性黄土是影响公路设计和施工的主要因素,建议对部分路线作适当调整。
On the basis of fully analysis of the geologic condition of the national highway 309(NH309) in Ningxia Autonomous Region(NAR), this paper analyzes the engineering geologic conditions of the National Highway 309 in NAR. After that, it concludes that this section of the highway is of the characteristics of complicated geomorphologic and broken rock masses,as well as a lot of landslides, mudrock flow and widely distributed collapsible loess and all of these are the main affecting factors for its design and construction. Finally, it suggests that the location of some parts of the highway should be correspondently adjusted.
