Based on arch frame slope protection test sections of the Longcha freeway project, flat seam concrete block arch frame's stress and displacement were monitored at the key points in different times to analyze the changing rules of stress and displacement of the structures, and to discuss flat seam concrete block arch frame's changing discipline in different times compared with the results calculated by its numerical model.Field monitoring date shows that all the monitoring point's stress and displacement is rising over time and tends to be moderated at last.The stress increases wave-likely with the increasing of displacement between monitoring point and the top of slope incline.For the field monitoring date and numerical analyzing results, the common analyses indicate that disadvantage site is located in each arch root among the whole arch framework, and the stress in the upper arch framework is bigger than the relative values in its lower place, and the displacement in the upper arch framework is smaller than the relative values in its lower place.Longitudinal displacement decreases nonlinearly with the distance increasing from monitoring point to the top.%依托垄茶高速公路工程边坡拱形骨架护坡试验段,对平接缝预制块拱形骨架护坡结构进行现场应力与位移监测,并与其数值模型分析结果进行比对,探讨平接缝预制块拱形骨架护坡结构的受力机理.现场试验段监测数据分析结果表明,平接缝预制块拱形骨架护坡结构随使用时间的增加:各监测点的应力、位移持续增加,直至趋于稳定;不同点位应力、位移变化规律基本一致.现场试验段监测数据与数值分析结果共同表明:平接缝预制块拱形骨架护坡结构各拱圈的拱脚处为受力不利点位;上排拱圈上点的应力小于下排拱圈上对应点应力;上排拱圈上点的位移大于下排拱圈上对应点的位移;在同一拱柱坡线上,点位竖向位移与离坡顶斜距呈非线性减少,坡顶竖向位移最大.
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