山区土石料压实标准及其应用

山区土石料颗粒组成和含水状态极不均匀,在填方压实施工中往往难以压实且压实不均匀,沿用常规的压实质量控制标准,难以达到预期的控制效果。空隙率控制法和不同粗集料含量下以压实度作为工地压实质量控制的改进方法从不同角度提出了压实质量控制标准,工程实例表明,两种方法能在一定程度上取得较好的控制效果。与前两种方法相比,贯入法评定压实质量具有快速简便的优点,将其推广为标准的压实检测方法,还需进一步研究并结合实体工程进行验证。

Compaction standard and application of earth-rock mixtures in mountain area

The grain-size composition and water content of earth-rock mixture are very inconsistent,and it is difficult to compact or to compact evenly an earth-rock fill.The anticipated compaction can not be attained with the usual compaction control standard.A compaction quality control standard was suggested using void percentage control or an improved field compactness control for different coarse material content.An authentic engineering application demonstrated that either method can give a good compaction control effect.Compared with the above methods,penetration method is simple and convenient,but it need further researching and testing combined with engineering,before becoming compaction control standard.