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膨胀土分布在我国江苏、安徽、湖北、广西、四川、河南等许多省、区。随着我国高速公路建设的高速发展,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、沥青混凝土路面开裂、翻浆、边坡沉塌、滑坡等病害。本文通过蚌明高速公路五合同段的施工,提出了对膨胀土路基病害成因分析、治理措施及施工控制要点。
Expansion of soil distribution in China’s Jiangsu, Anhui, Hubei, Guangxi, Sichuan, Henan and many other provinces and regions. With the rapid development of expressway construction in our country, the embankment built by expansive soil has experienced subsidence, cracking of asphalt concrete pavement, de-shelling, slope collapse, landslide and other diseases after being handed over for operation. Through the construction of the fifth contract section of Bumming Expressway, this paper puts forward the analysis of the causes of the damage to the expansive soil roadbed, the control measures and the construction control points.