论文部分内容阅读
该文结合宝钢吹填土区域道路工程地基的应力历史和堆载预压施工监测结果,对浅层松散吹填土层和下部淤泥质软土层的固结变形规律进行分析。研究结果表明:该区域浅部吹填土层处于欠压密状态,在填土荷载作用下压缩变形发展很快,下部软土层吹填土和表层杂填土荷载引起的超孔压尚未完全消散,在地基加固施工时监测的初始孔压并非静止孔压;填土加载后,软土层的固结变形经历一个从快到慢,逐步收敛的过程。
Based on the stress history of the road foundation in Baosteel area under dredger fill and the monitoring results of surcharge preloading, the consolidation and deformation of the shallow loose fill soil layer and the lower silt soft soil layer are analyzed. The results show that the shallow layer of the dredger fill in the area is in under-compact state, the compressive deformation develops rapidly under the action of the fill load, and the excess pore pressure caused by the dredged fill and the surface miscellaneous fill in the lower soft soil has not yet been completely Dissipated. The initial pore pressure monitored during foundation reinforcement construction is not a static pore pressure. After loading, the consolidation deformation of the soft soil layer undergoes a process of rapid and slow convergence and gradual convergence.