论文部分内容阅读
以青岛高新区软土地基为例,采用低能量强夯联合井点降水法进行软土地基处理。结合现场工况,建立有限元分计算模型,计算分析在强夯冲击荷载作用下,孔隙水压力在荷载作用任意时刻沿深度方向的分布及消散规律,地表位移在冲击荷载作用下的分布规律及其夯坑形状示意,以及土体在夯击和在下的应力变化规律。研究结果表明,低能强夯与真空降水联合加固法处理软土地基取得良好的加固效果,该法可用于大面积软土地基处理。
Taking the high-tech zone of Qingdao as an example, the soft ground was treated with low-energy dynamic compaction and well point dewatering. Combined with the field conditions, the finite element model was established to calculate and analyze the distribution and dissipation law of pore water pressure in the depth direction at any moment under the action of dynamic compaction and the distribution rule of the surface displacement under impact load. The ramming pit shape shows, as well as the soil compaction and under the stress changes. The results show that the combination of low-energy dynamic compaction and vacuum precipitation treatment of soft soil foundation to obtain good reinforcement effect, the method can be used for large-scale soft soil foundation treatment.