摘要
针对某低路堤地基上覆硬壳层,下卧软弱层的的二元结构地基条件,采用低能量强夯法与轻型井点降水联合地基处理方法进行现场试验.通过对地基中超静孔压随强夯遍数、距夯点的水平距离及埋深等参数的增长与消散规律的研究及加固前后地基土静力触探试验(CPT)的比贯入阻力Ps及标准贯入试验(SPT)击数N检测数据的对比分析,验证了处理方法的适用性,提出大面积地基处理的施工参数,可供类似工程地基处理参考与借鉴.
Based the dualistic structure ground of a low embankment which consists of overlying crust in surface and underlying a soft layer,a low-energy dynamic consolidation method （LEDCM） combined with light well point drainage （LWPD） is used for the ground improvement in site. By an- alyzing the increasing and dissipation law of excess pore water pressure with tamping number,hori- zontal distance from tamping point,depth et al,and comparing the number of standard penetration test,the specific penetration resistance（Ps） of static cone penetration test after improvement with the initial data respectively,the obtained results indicate that the fitness of LEDCM combined LW- PD to treat the dualistic structure ground is suitable. And construction parameters of large area ground improvement are presented. The research results can be referenced for ground improvement of similar engineering.
出处
《内蒙古大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第6期640-646,共7页
Journal of Inner Mongolia University：Natural Science Edition
基金
内蒙古自然科学基金面上项目(2013MS0703)
内蒙古交通厅交通科技项目(NJ-2012-10)
内蒙古大学高层次人才引进项目(IMU-2012-26)
关键词
低能量强夯法
低路堤
二元结构
超静孔压
low-energy dynamic consolidation method
low embankment
the dualistic structure
excess pore water pressure
