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在道路拓宽工程中,对地基不均匀沉降所造成的破坏现象进行了调查,以四川某省道拓宽项目为例,结合实验、现场提取数据及分析结果,对拓宽道路路基变形规律及土工格栅处治效果进行了研究,探讨不同情况下,拓宽道路路基的变形情况以及用土工格栅应对不均匀沉降的作用,研究结果表明:地基对路基顶面竖向变形起主导作用;采取土工格栅处治的效果明显,加筋后路基和地基水平位移减小明显,路基顶面和地基顶面竖向位移有一定程度的减小。
In the road widening project, the phenomenon of the damage caused by the uneven subgrade settlement was investigated. Taking a provincial highway project in Sichuan as an example, combining with the experimental data and on-site extraction data and analysis results, it is necessary to expand the roadbed deformation laws and geogrids The results show that the foundation plays a leading role in the vertical deformation of the subgrade surface, and the geogrid treatment The obvious effect is that the horizontal displacement of subgrade and foundation is obviously reduced, and the vertical displacements of subgrade top and top of subgrade are reduced to a certain extent.