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对厚度10.5~13.8m、埋深2~17m、高含水量、高压缩性、低强度及欠固结的不能满足公路工程建设工后沉降量要求的软基路段进行了砂井排水堆载预压法地基处理;采用分层综合法等理论方法,通过对地基处理前后地基沉降量的计算和预压处理工程中地层固结度的计算,并与预压过程中分层沉降量观测成果进行对比分析,预压处理后的地基工后沉降量可满足规范要求,达到了预期目的。
In the soft ground section with the thickness of 10.5 ~ 13.8m, the buried depth of 2 ~ 17m, the high water content, the high compressibility, the low strength and the underconsolidation which can not meet the requirements of post-construction settlement of highway engineering, The method of stratified synthesis and other theoretical methods are adopted to calculate the settlement of ground foundation before and after foundation treatment and the calculation of formation consolidation degree in pre-compression treatment project, and the results of stratified settlement observation during pre-compression By comparison and analysis, the post-construction settlement after pre-compression treatment can meet the requirements of the code and achieve the expected purpose.