Tunnel foundation pit supporting equipment: Fid-Bau Portal

Tunnel foundation pit supporting equipment

LI WENJIAN / HE ZONGMING / LIANG XIONGGUANG / LAN YUANYU / HUANG HONG

The invention discloses tunnel foundation pit supporting equipment, and relates to the technical field of tunnel foundation pit supporting, the tunnel foundation pit supporting equipment comprises a group of steel enclosing purlins, the outer side of the steel enclosing purlin on the left side is connected with a clamping plate, the outer side of the clamping plate is connected with a flange steel pipe through an adjustable mechanism, the adjustable mechanism internally comprises a limiting rod, the outer side of the limiting rod is sleeved with a limiting sleeve, and the limiting sleeve is connected with a limiting rod. A cylinder is connected to the outer side of the limiting sleeve, a hydraulic jack is connected to the outer side of the limiting rod, one end of the hydraulic jack is fixedly connected with the flange steel pipe, and a pressure sensor, a signal receiver and a single chip microcomputer are arranged. The pressure sensor is arranged on the support, collected data are transmitted into the single-chip microcomputer through the signal receiver to be calculated, when the pressure reaches a warning value, the single-chip microcomputer controls the external buzzer to give an alarm, the warning effect is achieved, and the problem that when the pressure exceeds the supporting limit of the support, an alarm cannot be given out in time is solved.

本申请公开了一种隧道基坑支护设备，涉及隧道基坑支护技术领域，包括：一组钢围檩，左侧所述钢围檩的外侧连接有卡板，所述卡板的外侧通过活络机构连接有法兰钢管，所述活络机构的内部包括限位杆，所述限位杆的外侧套接有限位套，所述限位套的外侧连接有筒体，所述限位杆的外侧连接有液压千斤顶，所述液压千斤顶的一端与法兰钢管固定连接，设置有压力传感器、信号接收器和单片机，当基坑上方的土体压力出现变化时，触发压力传感器，将采集到的数据通过信号接收器传输至单片机内进行计算，当压力达到警戒值后，通过单片机控制外部的蜂鸣器进行报警，起到警戒的效果，解决了当压力超过支护所能支撑的极限时无法及时发出警报的问题。

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