论文部分内容阅读
在侧限条件下,对粉砂和两种不同饱和度的粉质粘土进行冲击试验和冲击后的高压固结试验,研究冲击产生的压密、冲击后的压缩曲线和压缩指数、冲击形成的前期固结压力及其与冲击能的关系。结果表明,相近初始密实度下,低饱和粉质粘土密实效果最好;冲击后近饱和粉质粘土基本不形成超固结,低饱和粉质粘土形成明显的超固结,冲击形成的前期固结压力随着冲击能增大而增大;冲击后土的压缩指数与冲击能相关性不大。
Under confined conditions, the impact test and the post-impact high-pressure consolidation test of silt and two different saturated silty clays were carried out to study the effects of impact compaction, impact compression curve and compressive index, Preconsolidation pressure and its relationship with impact energy. The results show that the density of low-saturated silty clay is the best under the similar initial density. The near-saturated silty clay does not form over-consolidated and low-saturated silty clay at the initial impact stage The junction pressure increases with the increase of impact energy. The compressibility index of soil after impact is not related to the impact energy.