湿陷性黄土工程特性及路基病害防治措施

Engineering Properties of Collapsible Loess and Controlling Measures of Subgrade Disease

湿陷性黄土压缩性大、强度低。在其上修筑路基容易产生较大的沉降量,且常因雨水导致各种工程病害。随着我国道路工程建设的不断发展,在西部地区由湿陷性黄土引起的路基病害问题日益突出,已严重影响到道路的施工建设。介绍了湿陷性黄土的工程特性,针对路基各种病害类型及成因进行了分析,并提出了相应的防治措施。该研究对湿陷性黄土地区路基的设计、施工及养护具有重要的指导意义。

The collapsible loess has a large compressibility and a low strength. It often produces a larger settlement when the subgrade is buih on it, and the rain often leads to all kinds of engineering diseases. With the continuous development of road construction in China, subgrade diseases problems caused by the collapsible loess have become increasingly prominent in the western region, which has seriously affected the construction of the road. In the paper, the engineering properties of collapsible loess are described, various disease forms and causes are analyzed and some controlling measures are put forward, which has an important guiding significance to the design, construction and maintenance of the subgrade in collapsible loess area.