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冲击碾压是采用强大的冲击力对土体施加冲击压实功能,土体中原有的水分和空气被挤出,土颗粒在强大的冲挤力下重排列,较小的颗粒被挤到大颗粒的缝隙中,形成二次沉降,从而使土体形成密度很高的板块,提高了路基的承载力,有效减少了路基工后沉降。结合在港区滨江大道上公路路基的施工,介绍其施工工艺及施工注意事项。
Impact rolling is the use of a powerful impact on the soil impacted by the impact of compaction, the soil of the original water and air are squeezed out, the strong particles in the soil under the force of rearrangement, smaller particles are squeezed to large Particles in the gap, the formation of secondary settlement, so that the formation of high density soil plate, improve the bearing capacity of subgrade, effectively reducing the subgrade settlement. Combined with the construction of highway subgrade on Binjiang Avenue in Hong Kong, the construction technology and construction precautions are introduced.