强夯作用下孔隙水压力响应试验

在强夯荷载的作用下,地基内部将引起孔隙水压力的迅速增长,孔隙水压力增长和消散的大小以及速度在一定程度上反映了土体加固效果的好坏,尤其是对饱和软粘土地基。在信息化施工过程中,孔隙水压力的消散情况还可用来控制夯击相邻遍之间的间隔时间。文中浅释不同土质的孔隙水压力产生和消散机理,并通过工程实例,分析在强夯作用下,孔隙水压力响应的规律,进一步了解强夯的加固机理和加固效果。

Experimental on variation about pore water pressure of groundsill by dynamic compaction

On the effect of heavy tamping load,the pore water pressure will increase quickly in internal groundsill.The measurement and rate of growing and dissipation about pore water pressure are a reflection of the consolidation effect of foundation after impact to a certian extent,especially to saturated soft clay.During the information-based construction,the state of dissipation with pore water pressure can be used for controlling the time on the interval heavy tamping.This paper explains the mechanism of generation and dissipation with pore water pressure of various soil.Combined with a coastal engineering,the vibration of pore water pressure by heavy tamping is analyzed.It will be propitious to further understand the consolidation mechanism and results.