摘要
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 project,it is very important to study on the filling tests with collapsible loess.Based on the filling tests,the compacting indices and the distribution features of moisture content are obtained,which provide the key basis for the large-area construction pre-controlling.The working parameters for the rolling construction are determined according to the subsidence observation and the compacting tests with different filling thickness.The mechanics testing and collapsible testing for the soil indices（Es,c,φ,δs2.0）,the K30 testing,the load-settlement testing and the soaking load-settlement testing are carried out after the completion of the construction,and both the designing parameters and the favorable compacting effect are obtained.
出处
《工程勘察》
CSCD
2012年第3期18-21,共4页
Geotechnical Investigation & Surveying
关键词
湿陷性黄土
填料
碾压
collapsible loess
filling
compaction
