摘要
浦东国际机场大面积软土地基进行了历时3年的堆载预压,卸载以后表层土比较松散、深层沉降远未完成。为了减少道面荷载作用下产生的不均匀沉降,保证道面结构运行安全,决定在堆载预压的基础上应用强夯法进行浅层处理。文章结合该工程实践,分析地质状况、预压后土性的改善对强夯加固工艺参数选取的影响,以及降排水方式在强夯加固过程中的重要意义。
The 3-year long piling preloading was carried out on the large-scale soft ground for the Pudong International Airport. After unloading, superficial strata were loose, and deep settlement had not been finished. In order to reduce uneven settlement of foundation produced by the pavement load and assure the safe performance of pavement structure, shallow treatment through dynamic consolidation was proposed,although piling preloading had been applied. Based on the project construction practice, influence of geological characteristics and soil improvement by preloading on the selection of technological parameters of dynamic consolidation is analyzed, and the significance of the mode of dewatering during the shallow consolidation process is discussed.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第2期230-233,共4页
Journal of Hefei University of Technology：Natural Science
关键词
强夯法
堆载预压
降排水
工艺参数
dynamic consolidation method（DCM）
preloading
dewatering
technological parameter
