Fixing device for soil pressure gauge

Abstract

A fixing device for a soil pressure gauge is provided with a plurality of rotating supports which are connected together through pins. Each rotating support is provided with a bottom plate. Clamping portions are symmetrically arranged at the two ends of each bottom plate. Each clamping portion is of a right angle structure. Each bottom plate and the corresponding clamping portions at the two ends of the bottom plate together form a rectangular-frame-shaped structure which is used for containing the soil pressure gauge and provided with an opening in the top. A plurality of fixing leg columns for being inserted into a soil body are further arranged at the lower portion of each bottom plate. The fixing device is simple in structure, convenient to use and low in cost, the soil pressure gauge can make close contact with surrounding rock through openings formed between clamping portions at the top ends of the rotating supports, and monitoring accuracy is improved. Pressure of the surrounding rock can be safely, efficiently and reliably monitored, the practice effect is good, and practicability is high.

Description

technical field [0001] The invention relates to an earth pressure gauge fixing device, in particular to a device suitable for fixing surrounding rock earth pressure gauges in underground engineering monitoring. Background technique [0002] Surrounding rock pressure monitoring is an important test content in underground engineering construction. The usual practice is to embed an earth pressure gauge in the surrounding rock for monitoring. The method of embedding the earth pressure gauge is to reserve or dig a pit on the surface to be tested, and then fix the earth pressure gauge on the surface of the building. The earth pressure gauge has a circular pie-shaped structure and is heavy, and it is especially difficult to bury it in the surrounding rock of the vault and the side wall. In field monitoring, it is usually fixed on a steel arch or steel mesh, but the disadvantage of this method is that the front of the pressure gauge cannot directly contact the surrounding rock, and...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the shortcoming that the earth pressure gauge cannot be in close contact with the surrounding rock in the prior art, and provide an earth pressure gauge fixing device in order to obtain the real earth pressure of the underground engineering surrounding rock

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