设计了陷落体救助模型系统,进行了沼泽湿地陷落体救助室内试验研究,对救助拉拔过程进行了初步的探讨。结果表明,陷落体救助拉拔的阻力主要来自底盘负孔隙水压力,远大于侧壁阻力。拉拔速度和静置时间是影响负孔隙水压力的主要因素。负孔隙水压力大小随拉拔速度和静置时间的增加而增大。拉拔速度越大,负孔压分布就越不均匀。静置时间越长,增加幅度越大。 The model system of the rescue system for the falling body was designed and the indoor experimental research on the relief of the marsh wetland was carried out. The salvage process of the rescue was preliminarily discussed. The results show that the resistance of the falling body to rescue drawing mainly comes from the negative pore water pressure of the chassis, which is much larger than the resistance of the side wall. Drawing speed and standing time are the main factors affecting negative pore water pressure. Negative pore water pressure increases with drawing speed and standing time. The greater the drawing speed, the less distribution of negative pore pressure. Standing longer, the greater the increase.