国道109线十七沟至清水河段路基灰土垫层的试验研究

Experimental study on subgrade lime-soil cushion in Shiqigou to Qingshuihe section of national highway 109 line

为了解决湿陷性黄土路基普遍出现的路基沉陷、路面开裂以及过大的工后沉降等病害,以国道109线十七沟-清水河段一级公路为例,提出了灰土垫层处治湿陷性黄土路基的设计方法,为黄土地区湿陷性黄土路基的填筑提供一定的参考。

In order to solve the widespread diseases such as roadbed subsidence, pavement cracking and big post - construc-tion settlement of collapsible loess roadbed, this paper takes Shiqigou to Qingshuihe section of national highway 109 line first class highway as example, puts forward collapsible loess roadbed design method of lime - soil cushion treatment, it provides a ref-erence to collapsible loess roadbed filling in loess areas.