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在高填方工程中,湿陷性黄土作为填料,在工程处理中对其开展试验研究至关重要。本文结合实际工程,开展了填料试验研究,得出了填料的击实指标及含水率分布特性,为大面积施工预控提供了重要依据。通过碾压试验中对不同虚铺厚度填料的沉降量观测和压实度检测,经综合分析确定了碾压施工的实施参数。对按施工参数作业完成的填筑体进行了力学及湿陷性指标(压缩模量、粘聚力、内摩擦角、湿陷系数)试验、K30检测、载荷试验与浸水载荷试验等效果评价,得出了相关设计参数,取得了良好的处理效果。
In high-fill engineering, collapsible loess as a filler, in the engineering process of its pilot study is essential. In this paper, the actual project, carried out the filler test study, obtained the compaction of compaction indicators and the distribution of water content characteristics for large-scale construction of pre-control provides an important basis. According to the settlement observation and the compaction detection of different virtual shop thickness packing in the rolling compaction test, the implementation parameters of the compaction construction were confirmed through comprehensive analysis. The effect of mechanics and collapsibility index (compressive modulus, cohesion, internal friction angle, collapsible coefficient) test, K30 test, load test and immersion load test were evaluated on the filled structures completed according to the construction parameters. Obtained the relevant design parameters, and obtained a good treatment effect.