Rock tunnel surrounding rock pressure gauge fixing device
A technology of surrounding rock pressure and fixing device, which is applied to tunnels, tunnel linings, measuring devices, etc., can solve the problems that the pressure gauge cannot be directly installed on the surface of the surrounding rock, and the installation and fixing of the pressure gauge are difficult. Convenient and improve the effect of fixing strength
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[0012] As shown in the figure, a rock tunnel surrounding rock pressure gauge fixing device includes a bottom plate 2 and a steel arch 3, the pressure gauge 1 is fixed on the bottom plate 2 by fixing screws 4, and the bottom plate 2 is fixed on the steel arch by set screws 5 3, between the bottom plate 2 and the steel arch 3, a plurality of adjusting bolts 6 for adjusting the inclination angle of the pressure gauge 1 are arranged, so that the pressure gauge 1 is close to the surrounding rock excavation surface, and the fixing screws 4 and the positioning screw 5 are both made of elastic material, and the pressure gauge 1 is fixed on the center of the bottom plate 2 by the fixing screw 4 .
[0013] In the installation process of the present invention, first place the pressure gauge 1 at the center of the bottom plate 2, tighten the fixing screws 4 to fix the pressure gauge 1 on the bottom plate 2, and then place the other side of the bottom plate 2 on the steel arch 3 , Tighten ...
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