强夯处理红粘土沉降试验研究
TREATMENT OF LATERITE SUBSIDENCE BY DYNAMIC COMPACTION
-
摘要: 红粘土作为高填方体的底层地基,处理其沉降和不均匀性沉降是高填方工程研究的重点。以某机场红粘土高填地基的处理为例,通过沉降分析和方案比选开展强夯处理试验研究。根据场区内不同覆土厚度,采用不同能级进行强夯处理试验确定了合理的施工工艺和参数。通过施工中沉降观测,施工后地基土的物理力学指标试验、载荷试验和工后沉降观测,强夯处理取得了良好的效果,满足设计要求。指导大面积施工时,在质量、造价、工期上都取得了成功。Abstract: The treatment of laterite subsidence is important for a stability of a foundation.This paper presents dynamic compaction test results for treatment of thick-filling soil mass with a laterite base.Appropriate working procedures and design parameters are obtained from the test.Monitoring data show that the treatment offers good compacting effect as well as economic benefits.
下载:
