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中文摘要：
以某坝基防渗墙为例，根据施工期观测数据并结合监测仪器布置对其应力变形特征进行分析，并对其机理进行探讨。变形（挠度）主要与水平压力有关，灌浆压力使得垂直河向上水平位移监测成果出现了不规律现象。防渗墙应变主要与所受的竖向荷载有关，墙体与两侧覆盖层间的不均匀沉降所产生的摩阻力对其应变空间分布特征具有较大影响。
英文摘要：
Taking some impervious wall as an example, combined with monitoring data and the arrangement of monitoring instruments, the characteristics of its stress deformation was analysed and mechanism was discussed. The deformation（deflection） of impervious wall mainly relates to horizontal pressure, and grouting pressure makes the monitoring data in vertical approach of the river not so regular. The strain of impervious wall mainly relates to vertical loads, the friction which caused by uneven settlement between the wall and overburden layer exerts influence on the spatial distribution of the strain.
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