CN2745026Y - Standard roughness ruler - Google Patents

Abstract

The utility model discloses a standard roughness ruler. The transparent standard roughness ruler is marked with graduation whose effective width is 10mm. The width of the effective graduation is divided into 10 lattices; each lattice represents 1mm. The left side of each lattice of the graduation marked with an amplitude r< y > of the corresponding convex tooth; the right side of the graduation is marked with a roughness coefficient JRC0 of the rough surface of a rock. The effective length of the graduation is 10cm. The '0' baseline of the graduation is tangential to at least two summits. The value of JRC0 corresponding to the graduation line which is tangential to the valley bottom of the profilogram is the roughness coefficient JRC0 of the profilogram with a standard length. Compared with the prior art, the standard roughness ruler with a simple structure, convenient operation, fast measuring speed, is not affected by manual factors. Meanwhile, the standard roughness ruler provides an effective method to quantify, count, and analyse the roughness of the standard size rock mass structural face with various material and direction, and unhomogeneity, with a high enforcement value, and economic effect.

Description

The standard ruler of roughness

(1) technical field

The utility model relates to the standard ruler of roughness, is applicable to directly to measure roughness coefficient JRC on the paper of the rock structural face surface outline curves that is painted with standard size (length 10cm) ₀The occasion of value.

(2) background technology

Before the utility model is made, directly measure roughness coefficient JRC on the paper of the standard-sized rock structural face surface outline curves of prior art ₀The calculating of value or estimation technology include to be revised straight flange method mathematical formulae computing method or revise straight flange method diagram estimation method: revising straight flange method mathematical formulae computing method is according to standard length L ₀The double wedge amplitude R that measures on the rock structural face surface outline curves of (length 10cm) _Y0(unit is cm) utilizes formula ${\mathrm{JRC}}_0=49.2114e^{\frac{29}{450}}\arctan \left[\frac{{4R}_{Y0}}{5}\right]$ The roughness coefficient value JRC of computing rock structural plane ₀Revising straight flange method diagram estimation method and be according to length is the double wedge amplitude R that measures on the rock structural face surface outline curves of 10cm _Y0, at L (horizontal ordinate)-R _yFind out L on (ordinate) graph of a relation ₀With R _Y0Intersection point, and determine JRC by this intersection point ₀Value, this technology formality is loaded down with trivial details, and calculating or estimation speed are slow, are not easy to standard size rock structural face roughness coefficient JRC ₀Statistical measurement.

(3) summary of the invention

The purpose of this utility model be solve aforesaid way measure formality loaded down with trivial details, calculate or estimate slow-footed shortcoming, provide a kind of simple in structure, easy to operate, measuring speed is fast, the standard ruler of roughness that result of use is good.

A kind of standard ruler of roughness, the described standard ruler of roughness that is transparence is marked with scale, and the effective width of described scale is 10mm, and the width of described effective scale is divided into 10 lattice, and every lattice are represented 1mm, and corresponding double wedge amplitude R is indicated in the every lattice of described scale left side _yValue, corresponding rock structural face roughness coefficient JRC is indicated on described scale right side ₀Value; The effective length of described scale is 10cm; " 0 " baseline of described scale and at least two summits of contour curve are tangent, the scale mark pairing JRC tangent with described curve the lowest point ₀Value promptly records the roughness coefficient JRC of the contour curve of standard length ₀Value.

The utility model compared with prior art, simple in structure, use easy to operate, measuring speed is fast, not influenced by human factor and precision meets the demands, standard size rock structural face roughness coefficient for each matter opposite sex of quantitative statistical analysis tool, anisotropy, heterogencity provides effective means simultaneously, has bigger implementary value and economic results in society.

(4) description of drawings

Fig. 1 is a standard ruler of roughness structural representation

(5) embodiment

JRC among the figure ₀Represent the rock structural face roughness coefficient of standard size (length is 10cm), R _Y0The double wedge amplitude (mm) of representing corresponding rock structural face surface outline curves.As shown in Figure 1, a kind of standard ruler of roughness, the described standard ruler of roughness that is transparence is marked with scale, the effective width of described scale is 10mm, the width of described effective scale is divided into 10 lattice, every lattice are represented 1mm, and the value of corresponding double wedge amplitude Ry is indicated in the every lattice of described scale left side, and corresponding rock structural face roughness coefficient JRC value is indicated on described scale right side; The effective length of described scale is 10cm; " 0 " baseline of described scale and at least two summits of contour curve are tangent, the scale mark pairing JRC tangent with described curve the lowest point ₀Value promptly records the roughness coefficient JRC of the contour curve of standard length ₀Value.

When this ruler of roughness is manipulated, similar with the ruler measuring method, the standard ruler of roughness is positioned on the paper that is painted with standard size rock structural face surface outline curves, and make the contour curve left end place the start line of the effective scale of standard ruler of roughness, make scale mark place parallel with the average line of structural plane surface outline curves, and guarantee to make " 0 " baseline of two or more summits and scale tangent, read and deep valley at the bottom of the tangent pairing JRC of scale mark ₀Be worth, promptly record the roughness coefficient JRC of the contour curve of standard length ₀Value.The roughness coefficient JRC of standard-sized rock texture surface outline curves among Fig. 1 ₀Value is 28.

Claims (2)

1, a kind of standard ruler of roughness, it is characterized in that: the described standard ruler of roughness that is transparence is marked with scale, and the effective width of described scale is 10mm, and the width of described effective scale is divided into 10 lattice, every lattice are represented 1mm, and corresponding double wedge amplitude R is indicated in the every lattice of described scale left side _yValue, corresponding rock structural face roughness coefficient JRC is indicated on described scale right side ₀Value;

The effective length of described scale is 10cm;

" 0 " baseline of described scale and at least two summits of contour curve are tangent, the scale mark pairing JRC tangent with described curve the lowest point ₀Value promptly records the roughness coefficient JRC of the contour curve of standard length ₀Value.

2, standard ruler of roughness as claimed in claim 1 is characterized in that: the thickness of described standard ruler of roughness is 5mm.

Images