Pile removing device for shield tunnel construction: Fid-Bau Portal

Pile removing device for shield tunnel construction

CHENG XUEYONG / GUO JUSHUAI / XU DANGHUI

The invention discloses a pile removing device for shield tunnel construction, which comprises a supporting base, the bottom of the supporting base is mounted on the ground, a hydraulic lifting column is mounted at the top of the supporting base, a clamping platform is mounted at the top of the hydraulic lifting column, and a pile gripper is arranged on the clamping platform. The pile breaking device comprises a clamping platform, a pile breaking mechanism is installed at the top of the clamping platform and comprises a supporting frame, a through groove is formed in the middle of the supporting frame, the supporting frame is installed on the clamping platform, a plurality of hydraulic push rods are arranged on the supporting frame in the circumferential direction of the through groove, and push blocks are fixed to the telescopic ends of the hydraulic push rods. Compared with currently used pile pulling equipment, in a narrow space, the hydraulic lifting column only needs to drive the pile clamping device to ascend and descend in a reciprocating mode so as to pull the pile column, the pile crushing mechanism is matched to crush and remove the pile column after the pile clamping device reciprocates for one time, the pile column can be cyclically pulled for multiple times, and the environmental applicability of the pile pulling device is enhanced.

本发明公开了一种盾构隧道施工的桩柱清除装置，包括支撑底座，所述支撑底座底部安装在地面上，所述支撑底座顶部安装有液压升降柱，所述液压升降柱顶部安装有夹持平台，所述夹持平台上设有夹桩器，所述夹持平台顶部安装有碎桩机构，所述碎桩机构包括支撑架，所述支撑架中部开设有通槽，所述支撑架安装于所述夹持平台上，所述支撑架沿通槽周向布置有多个液压推杆，所述液压推杆的伸缩端均固定有推块。本发明相对于现在使用的拔桩设备而言，在窄小空间下只需通过液压升降柱带动夹桩器往复升降，从而拉拔桩柱，并配合碎桩机构在夹桩器往复一次后对桩柱进行破碎去除，即可使得桩柱被循环多次拔桩，增强了本发明的环境适用性。

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