西安南京铁路南阳西站膨胀土路基施工探索

Exploration of the Construction about Inflatable Soil Foundation of Xi’an-Nanjing Railway West Nanyang Station

膨胀土分布在我国广西、云南、湖北、河南、安徽、四川、河北、山东、陕西、江苏、贵州和广东等广大地区。随着我国铁路建设的高速发展,由膨胀土修筑的路基在交工运营之后,不同程度发生路基下沉、边坡沉塌、滑坡等病害。为保证膨胀土路基在较长时间内的稳定,达到安全、舒适行车的目的,解决因膨胀土而造成的一系列工程问题。通过对西安南京铁路南阳西站膨胀土路基施工的探索,提出对膨胀土路基病害成因浅析、治理措施及施工控制要点。

Inflatable soil distributes through areas of Guangxi, Yunnan, Hubei, Henan, Anhui, Sichuan, Hebei, Shandong, Shaanxi, Jiangsu, Guizhou, Guangdongo etc. With the high-speed development of the railway construction, the inflatable soil foundation has presented some diseases such as in varying degrees of sinking, side-slope collapsing or sliding, etc., when it is put into use. In order to keep the inflatable soil sub-grade stable and railway train operation safe and comfortable for a long and solve the series engineering problems caused by inflatable soil, this article, through exploring the construction about inflatable soil sub-grade of Xi＇an-Nanjing railway west Nanyang Station, analyses the reasons of these diseases and puts forward the measures and key controlling point.