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为了提高填石路基的强度和稳定度,避免不均匀变形对路基的不利影响,应用表面沉降法,研究了填石路基沉降率、密度、孔隙率之间的相关关系,发现对于填石路基,上路堤单层摊铺厚度应控制在40 cm以内,沉降率应控制在≤3%,下路堤单层摊铺厚度应控制在60 cm以内,沉降率应控制在3%~5%之间,结果表明以沉降率为指标的路基压实标准能够有效控制填石路基压实质量。
In order to improve the strength and stability of rockfill embankment and avoid the adverse effect of uneven deformation on the roadbed, the relationship between settlement, density and porosity of rockfill embankment is studied by surface subsidence method. It is found that for rockfill embankment, The embankment monolayer paving thickness should be controlled within 40 cm, the settlement rate should be controlled at ≤ 3%, the embankment monolayer paving thickness should be controlled within 60 cm, the settlement rate should be controlled at 3% to 5% The results show that subgrade compaction standard with subsidence as an index can effectively control the compaction quality of rockfill subgrade.