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为了保证含超大粒径块石土石混填路基的稳定性,对超大粒径块石间的土石混填料压实影响因素进行了研究。通过设计超大粒径块石的布放施工工艺、自制试验箱进行室内试验,并与ABAQUS有限元分析结果进行对比研究,对超大粒径块石布放的参数与其间土石混填料压实度之间的关系进行了分析。结果表明,当超大粒径块石间距小于夯锤直径时,土石混填料压实度较小,夯击能被超大粒径块石吸收;当超大粒径块石间距略大于夯锤直径时,土石混填料压实度达到最大值;随着间距继续增大,压实度略有减小,但仍能满足要求。通过确定合理的超大粒径块石间距,可以保证其间土石混填料在标准夯实下能够达到压实度要求。
In order to ensure the stability of the rock-soil mixed-filled embankment with extra-large-size block, the influencing factors of the compaction of the soil-stone mixed filler between extra-large-size blocks were studied. By designing the construction technology of laying large stone blocks, the homemade test box was used for indoor experiments and the results were compared with the results of ABAQUS finite element analysis. The parameters of large stone blocks and the compaction degree The relationship between the analysis. The results show that the compaction degree of soil-stone mixed filler is small when the distance between large-size block stones is smaller than the diameter of the rammer, and the compaction can be absorbed by the large-size block stones. When the distance between oversized block stones is slightly larger than the diameter of the rammer, The compaction degree of soil and stone mixed packing reached the maximum value. As the spacing continued to increase, the degree of compaction decreased slightly, but it still could meet the requirements. By determining the reasonable spacing of oversize block stones, it is possible to ensure the compaction degree of the soil-stone filler under standard compaction can be ensured.