中文摘要：

以上海地铁二号线某区间隧道附近的饱和粘性土体为研究对象，在地铁振动荷载作用下，通过对不同位置、不同深度土体中预埋孔压计振动频率的连续监测，研究饱和粘性土体中孔隙水压力对振动荷载的响应特征，得出了饱和粘性土中孔隙水压力增长和消散的变化规律，并用土动力学及能量损失原理对其机理进行了分析。

英文摘要：

The behaviour of the saturated soft clay nearby the tunnel of a certain section of Shanghai Metro Line 2 was investigated. Under the action of the vibration loading of the subway, the embedded piezometer continuously monitored the vibration frequency in the soil at different locations and different depths. The corresponding influence of the vibration loading to the pore water pressure inside the saturated soft clay was studied. Then the accumulation and dissipation of the pore water pressure inside the saturated soft clay were also observed. Furthermore, its mechanism was analyzed by use of soil dynamics and the principle of energy loss.