Foundation reinforcing device for tunnel penetrating through soft soil stratum

The foundation reinforcing device for the tunnel to penetrate through the soft soil stratum comprises a plurality of pile pipes, a separating device is arranged in the middle of each pile pipe, and the heights of the separating devices of the pile pipes correspond to the tunnel section in an avoiding mode. According to the shield cutter head, all the arc-shaped plates move inwards, meanwhile, the clamping blocks are separated from the clamping grooves, and the arc-shaped plates with the reduced outer contours can be pulled out from the upper end pipe, so that obstacles on a shield cutter head proceeding path can be removed, and abrasion of the cutter head is reduced. 本发明公开了一种隧道穿越软土地层的地基加固装置，包括多个桩管，每个桩管中部设有分离装置，多个桩管的分离装置高度对应隧道断面避让设置。本发明通过全部的弧形板向内移动，同时卡块与卡槽脱离，外轮廓缩小后的弧形板便能够由上端管往外拔出，从而使得盾构刀盘进行路线上的障碍物能够移除，使得刀盘的磨损减小。