地聚合物注浆加固技术在拓建后道路路基加固养护的应用研究

随着我国社会经济的快速发展,原有道路已不能满足现有交通量的要求。因此,通过道路拓建改造以增加其通行能力,而拓建后新老道路间易出现不均匀沉降,导致路面出现开裂等病害。结合实际工程,采用地聚合物注浆加固技术对拓建道路路基进行加固,取得了良好的工程应用效果。通过现场检测发现,此技术可显著改善拓建道路中新老路基抵抗不均匀变形的能力,提高拓建后道路的整体性和稳定性,具有广阔的应用推广价值。

Study on Application of Geopolymer Grouting Reinforcement Technique in Subgrade Reinforcement and Maintenance after Widening Road

As the social economy had been developing rapidly in our country, the existing roads could not satisfy the current traffic volume thus it was required to increase the traffic capacity by widening and reconstructing the roads. However, uneven settlement was easily to come out between the new and the old roads after widening, leading to cracks and other diseases on the road surface. Depending on actual conditions, geopolymer grouting reinforcement technique was applied therein, and then good engineering effect was obtained. Through field detection, it was found that this technique may improve the uneven settlement resistance capacity of the new and old subgrade significantly, and enhance the integrity and stability of the widened road.