摘要
强夯法所具有的优点,使其在许多地基处理工程中都有广泛的应用。对废黄河地区某高速公路的液化地基进行强夯试验,研究了在强夯试验过程中夯沉量、孔隙水压力与夯击次数的关系,以及孔隙水压力与深度和时间的关系,并且在夯前与夯后分别进行SPT、CPT、SAMW试验,检验强夯后试夯区的处理效果,最后提出了合理的强夯施工参数和控制工艺,并得出了一些有益的结论。
Dynamic compaction is a widely used method for subgrade treatment duo to its merit. Tamping test was carried out for the liquefiable foundation of the expressway in the abandoned yellow riv- er area, and the relationship between settlement, groundwater level, pore water pressure and drop counts and the relationship between pore water pressure and depth of soil and the relationship between pore water pressure and time were investigated, at the same time, SPT,CPT and SAMW were performed on before tamping and after tamping to test the improvement effect. According to the conclusion before and after the testing, some appropriate DC construction parameters and control technology are put forward, and some beneficial advices are obtained.
出处
《公路工程》
北大核心
2014年第3期38-43,48,共7页
Highway Engineering
基金
江苏省普通高校自然科学研究资助项目(08KJD580004)
关键词
液化地基
强夯
孔隙水压力
夯击次数
liquefiable foundation
dynamic compaction
pore water pressure
drop counts
