摘要
对位于北京西北郊的某工程场地的填土地基在不同夯次、不同夯能条件下进行了现场试验,发现地面夯沉量的变化具有阶段性的特点。通过对采自不同夯击阶段的试样进行SEM图像定量分析,得到了夯击过程中地基土的微观结构参数与夯沉量变化的相关关系,从微观角度初步掌握了强夯过程的结构控制规律。
A field dynamic compaction test of filled ground is carried out in a construction site in northwestern suburb of Beijing. Under the conditions of different blow counts and compaction energies, the subsidence of ground changes by phases. At the same time, quantitative analyzing of structure images is carried out on the samples of different compaction phases. The correlativity between microstructural parameters and the change of subsidence of filled ground is found. The test results reveal the law of controlling structure as viewed from microcosmic study during dynamic compaction.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2004年第11期1832-1836,共5页
Rock and Soil Mechanics
基金
获中科院知识创新工程重要方向项目(No.KZCX3-SW-134)
973专题(N0.2002CB412702)
国家自然科学基金资助项目(No.40072089)资助。
