Foundation pit supporting and anchoring device: Fid-Bau Portal

Foundation pit supporting and anchoring device

YANG JIAYAN

The invention discloses a foundation pit supporting and anchoring device which comprises an anchor rod body of a hollow structure, a plurality of cavities are formed in the side wall of the anchor rod body at intervals, the multiple cavities are formed in the circumferential direction of the central axis of the anchor rod body at equal intervals, each cavity is provided with a feeding port and a discharging port, the outer side wall of the anchor rod body is sunken to form an annular groove, and the annular groove is formed in the outer side wall of the anchor rod body; a plurality of material outlets are formed in the lower portion of the anchor rod body in the circumferential direction, and a sealing block is arranged in the anchor rod body. Each adjusting mechanism comprises a piston arranged in the cavity in a sealed and sliding mode, the piston is connected with a push rod, the lower end of the push rod penetrates through the bottom of the cavity in a sliding mode and is located in the annular groove, the lower end of the push rod is connected with an expansion assembly, and the expansion assembly comprises two hinged supporting rods. The supporting rods located on the lower portion are hinged to the annular groove, and the supporting rods located on the upper portion are connected with the annular groove in a sliding mode. By arranging the adjusting mechanism and the expansion assembly, the stability of anchor rod supporting is improved.

本发明公开了一种基坑支护锚固装置，包括：锚杆体，其为中空结构，所述锚杆体的侧壁内间隔设有多个空腔，多个空腔沿所述锚杆体的中轴线周向等间隔设置，所述空腔设有进料口和出料口，所述锚杆体的外侧壁凹陷形成环形槽，所述锚杆体下部周向设有多个物料出口，所述锚杆体内设有密封块；多组调节机构，所述调节机构包括密封滑动设于所述空腔内的活塞，所述活塞连接有推杆，所述推杆的下端滑动穿过所述空腔底部并位于所述环形槽内，所述推杆下端连接有扩张组件，所述扩张组件包括两个铰接的支撑杆，位于下方的支撑杆与环形槽铰接，位于上方的支撑杆与所述环形槽滑动连接。本发明通过设置调节机构、扩张组件实现了提高锚杆支护的稳定性。

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