Multi-angle intelligent measurement instrument of rock structure surface roughness coefficient and measurement method of rock structure surface roughness coefficient

Abstract

The invention relates to the field of measurement of rock structure surface roughness coefficient, in particular to a multi-angle intelligent measurement instrument of rock structure surface roughness coefficient and a measurement method of the rock structure surface roughness coefficient. The multi-angle intelligent measurement instrument comprises a turntable, a base, a bracket, a driving motor, a guide rail, a belt, a distance sensor, a micro-controller and a control circuit. The invention further relates to the intelligent measurement of the rock structure surface roughness coefficient with adoption of the measurement instrument. The instrument and the method are suitable for the indoor and outdoor measurement of roughness coefficients of various forms of rock structure surfaces; a user can measure the roughness coefficient of the rock structure surface from different directions, and take the average of multiple results as the finally measured roughness coefficient value of the rock structure surface; the roughness of the entire rock structure surface can be measured as much as possible through multidirectional measurement, so that the measurement results are more comprehensive and accurate.

Description

technical field [0001] The invention relates to the field of measuring the roughness coefficient of a rock mass structural surface, in particular to a multi-angle intelligent rock mass structural surface roughness coefficient measuring instrument and a measuring method thereof. Background technique [0002] The deformation and strength of rock mass depend on its stress conditions on the one hand, and on the other hand, are affected by the characteristics of the rock mass itself and the environment in which it occurs. The influence of structural planes is the fundamental reason why the mechanical properties of rock mass are different from those of intact rock. Therefore, the research on the deformation and strength characteristics of rock mass must focus on the mechanical effects of the structural plane of the rock mass, especially the shear strength. The surface of the structural surface is rough, and the roughness is an important parameter affecting the shear strength of th...

AI Technical Summary

Problems solved by technology

Most of the instruments of the mechanical method are composed of contact probes, mechanical drive devices and computers. Although these measuring instruments have relatively high measurement accuracy, their structures are complex, the equipment is heavy, the height difference test range is small, and the measurement speed is slow; the operation process It is easy to get stuck in the middle, and it is not suitable for the measurement of the roughness coefficient of the anisotropic and heterogeneous rock mass structural surface indoors and outdoors; most of them cannot directly give the roughness coefficient value of the rock mass structural surface

There are relatively few instruments for optical methods, most of which are composed of laser emitting devices, receivers, mechanical drive devices, photoelectric conversion systems, and computers, which overcome the problems of low mechanical measurement accuracy, jamming, and slow measurement speed. Some optical rock mass structural surface roughness coefficient measuring instruments are generally cumbersome and inconvenient to carry. They are limited to short-distance indoor fixed sample size testing, and cannot directly give the roughness coefficient value of the rock mass structural surface. It is not suitable for the measurement of the roughness coefficient of the anisotropic and heterogeneous rock mass structural surface indoors and outdoors

[0013] Therefore, at present, there are few instruments that can be used to directly measure the roughness coefficient of rock mass structural surfaces indoors and in the field. The measurement methods are simple, the precision is low, and the volume is also large. Output rock mass structural surface roughness coefficient value

Moreover, most of the existing rock mass structural surface roughness coefficient measuring instruments measure the undulation of a line on the rock mass structural surface, and use the undulation of a line to represent the roughness of the entire rock mass structural surface, and the error is large

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