摘要
结合上海某工程大面积吹填土地基处理工程,研究了真空动力固结加固含饱和软粘土夹层的吹填土路基问题。通过对加固过程中及加固后的地下水位变化、超孔隙水压力变化、工艺参数进行分析和讨论,探讨了真空动力固结在应用于含饱和软粘土夹层地基处理时的加固机理。本文研究进一步拓宽了真空动力固结地基处理方法的适用范围,为我国沿海地区港口码头和道路建设中遇到的大面积吹填土加固问题提供了新的途径。
The application of vacuum dynamic consolidation method to improve a large hydraulic fill ground in Shanghai was presented. The variations of ground water table and excessive pore water pressure during and after the execution of the improvement were monitored. Based on the field observations, the underlying mechanism of vacuum dynamic consolidation was proposed and the criteria for determining two crucial parameters of the improvement were discussed. This study verified the feasibility of the vacuum dynamic consolidation method to improve large area grounds with hydraulic fills, such as those at wharves or harbors in coastal areas or highway constructions.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2005年第9期1091-1096,共6页
Chinese Journal of Geotechnical Engineering
关键词
动力固结
真空降水
地基处理
吹填土
dynamic consolidation
vacuum dewatering, ground foundation improvement
hydraulic fills
