CN2745027Y - Roughness ruler - Google Patents
Roughness ruler Download PDFInfo
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- CN2745027Y CN2745027Y CNU2004201101868U CN200420110186U CN2745027Y CN 2745027 Y CN2745027 Y CN 2745027Y CN U2004201101868 U CNU2004201101868 U CN U2004201101868U CN 200420110186 U CN200420110186 U CN 200420110186U CN 2745027 Y CN2745027 Y CN 2745027Y
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- jrc
- scale
- roughness
- scale mark
- ruler
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Abstract
The utility model relates to a roughness ruler.The roughness ruler which is in a transparent state is cured with graduation.The effective length of the scale mark is 100cm; the effective width of the scale mark is 100mm.The width of the effective scale mark is divided into 100 lattices; each of the lattices shows 1 mm.A corresponding convex tooth amplitude R< y > is cured on the left side of the scale mark every 4 scale marks.The roughness coefficient of the rough surface of a rock JRC20, JRC30, JRC40, JRC50, JRC60, JRC70, JRC80, JRC90 and JRC100 are marked on the right side of the scale mark respective with distance 20cm, 30cm, 40cm, 50cm, 60cm, 70cm, 80cm, 90cm, and 100cm from the left side of the initial line; every 4 scale marks.The '0' baseline of the scale mark and at least two crests of a profilogram is tangential.The length L< n > of the profilogram of the rock mass structural face and the JRC< n > corresponding to the scale mark tangential with the deepest valley bottom is the JRC< n > of the measuring length.The roughness ruler with simple structure and high measuring speed, is not affected by the personal factor, whose precision can satisfy the need.
Description
(1) technical field
The present invention relates to ruler of roughness, be applicable to being painted with and directly measure roughness coefficient JRC on the paper of rock structural face surface outline curves that sample length is 20cm, 30cm, 40cm, 50cm, 60cm, 70cm, 80cm, 90cm or 100cm
nThe occasion of value.
(2) background technology
Before the present invention made, the prior art sample length was directly to measure roughness coefficient JRC on the paper of rock structural face surface outline curves of 20cm, 30cm, 40cm, 50cm, 60cm, 70cm, 80cm, 90cm or 100cm
nThe calculating of value or estimation technology are for revising straight flange method mathematical formulae computing method or revising straight flange method diagram estimation method: revising straight flange method mathematical formulae computing method is according to the specific assignment sampling length L
nThe rock structural face surface outline curves on the double wedge amplitude R that measures
Yn, utilize formula JRC
n=0.8589e
0.6444/
LnThe roughness coefficient value JRC of arctan (8Ryn/Ln) computing rock structural plane
nRevising straight flange method diagram estimation method is according to the specific assignment sampling length L
nThe rock structural face surface outline curves on the double wedge amplitude R that measures
Yn, at L (horizontal ordinate)-R
yFind out L on (ordinate) graph of a relation
nWith R
YnIntersection point, and determine JRC by this intersection point
nValue, this technology formality is loaded down with trivial details, and calculating or estimation speed are slow, are not easy to the rock structural face roughness coefficient JRC of each matter opposite sex of tool, anisotropy and heterogencity
nStatistical measurement.
(3) summary of the invention
The objective of the invention is to 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 ruler of roughness that result of use is good.
A kind of ruler of roughness, the described ruler of roughness that is transparence is marked with scale, the effective length of described scale is 100cm, the effective width of described scale is 100mm, the width of described effective scale is divided into 100 lattice, every lattice are represented 1mm, and corresponding double wedge amplitude R is indicated every 4 scale marks in described scale left side
yValue, be respectively the position of 20cm, 30cm, 40cm, 50cm, 60cm, 70cm, 80cm, 90cm and 100cm far from left side start line distance on the scale right side, indicate corresponding rock structural face roughness coefficient JRC every 4 scale marks
20, JRC
30, JRC
40, JRC
50, JRC
60, JRC
70, JRC
80, JRC
90And JRC
100Value; " 0 " baseline of described scale and at least two summits of contour curve are tangent, according to the length L of rock structural face surface outline curves
n, with the tangent pairing JRC of scale mark at the bottom of the deep valley
nValue, being and recording length is L
nThe roughness coefficient JRC of contour curve
nValue.
The present invention 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, and measurement result embodied the size effect influence of roughness coefficient, and the rock structural face roughness coefficient for each matter opposite sex of quantitative statistical analysis tool, anisotropy, heterogencity and size effect provides effective means simultaneously, has bigger implementary value and economic results in society.
(4) description of drawings
Fig. 1 is the ruler of roughness structural representation
JRC among the figure
20, JRC
30, JRC
40, JRC
50, JRC
60, JRC
70, JRC
80, JRC
90And JRC
100Representing sample length respectively is the rock structural face roughness coefficient of 20cm, 30cm, 40cm, 50cm, 60cm, 70cm, 80cm, 90cm and 100cm, R
yThe double wedge amplitude (mm) of expression rock structural face surface outline curves
(5) embodiment
As shown in Figure 1, embodiment of the present utility model and principle of work are: a kind of ruler of roughness, its ruler of roughness by transparency preferably material make, the thickness of ruler of roughness is 5mm, ruler of roughness is positive with red, blue dichromatism fine rule is indicated scale the (the 4th～7,12～15,20～23,28～31,36～39,44～47,52～55,60～63,68～71,76～79,84～87,92～95 scale marks are blue look scale, the 0th～3,8～11,16～19,24～27,32～35,40～43,48～51,56～59,64～67,72～75,80～83,88～91,96～100 scale marks are red scale), the effective length of scale is 100cm, effective width is 100mm, prolong every 4 scale marks in scale left side and start line 5mm, prolong every 8 scale marks and start line 10mm, and indicate the value (unit is mm) of contour curve double wedge amplitude Ry, adjacent two scale marks are 1mm at interval, be respectively 20cm on the scale right side far from left side start line distance, 30cm, 40cm, 50cm, 60cm, 70cm, 80cm, corresponding rock structural face roughness coefficient JRC is indicated every 4 scale marks in the position of 90cm or 100cm
20, JRC
30, JRC
40, JRC
50, JRC
60, JRC
70, JRC
80, JRC
90And JRC
100Value.When this ruler of roughness is manipulated, similar with the ruler measuring method, ruler of roughness is positioned on the paper that is painted with the rock structural face surface outline curves, and make the contour curve left end place the start line of the effective scale of 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, according to the length L of rock structural face surface outline curves
n, read and the tangent pairing JRC of scale mark at the bottom of the deep valley
nValue, promptly recording length is L
nThe roughness coefficient JRC of contour curve
nValue is (if this two pairing JRC of scale mark can read in the boundary at the bottom of the deep valley between two scale marks
n, try to achieve the JRC that carves contour curve according to interpolation method then
nValue).Sample length among Fig. 1 is the roughness coefficient JRC of the rock texture surface outline curves of 90cm
90Value is 7.
Claims (1)
1, a kind of ruler of roughness, it is characterized in that: the described ruler of roughness that is transparence is marked with scale, the effective length of described scale is 100cm, the effective width of described scale is 100mm, the width of described effective scale is divided into 100 lattice, every lattice are represented 1mm, and corresponding double wedge amplitude R is indicated every 4 scale marks in described scale left side
yValue, be respectively the position of 20cm, 30cm, 40cm, 50cm, 60cm, 70cm, 80cm, 90cm and 100cm far from left side start line distance on the scale right side, indicate corresponding rock structural face roughness coefficient JRC every 4 scale marks
20, JRC
30, JRC
40, JRC
50, JRC
60, JRC
70, JRC
80, JRC
90And JRC
100Value;
" 0 " baseline of described scale and at least two summits of contour curve are tangent, according to the length L of rock structural face surface outline curves
n, with the tangent pairing JRC of scale mark at the bottom of the deep valley
nValue, being and recording length is L
nThe roughness coefficient JRC of contour curve
nValue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004201101868U CN2745027Y (en) | 2004-11-18 | 2004-11-18 | Roughness ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004201101868U CN2745027Y (en) | 2004-11-18 | 2004-11-18 | Roughness ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2745027Y true CN2745027Y (en) | 2005-12-07 |
Family
ID=35579806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004201101868U Expired - Fee Related CN2745027Y (en) | 2004-11-18 | 2004-11-18 | Roughness ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2745027Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359772B (en) * | 2014-10-08 | 2016-09-14 | 绍兴文理学院 | The normal stress threshold value determination method of rock mass discontinuity peak value angle of friction |
| CN109556487A (en) * | 2018-11-26 | 2019-04-02 | 中国水产科学研究院南海水产研究所 | A kind of fish body contour outline measuring set and measurement method for gear selectivity research |
-
2004
- 2004-11-18 CN CNU2004201101868U patent/CN2745027Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359772B (en) * | 2014-10-08 | 2016-09-14 | 绍兴文理学院 | The normal stress threshold value determination method of rock mass discontinuity peak value angle of friction |
| CN109556487A (en) * | 2018-11-26 | 2019-04-02 | 中国水产科学研究院南海水产研究所 | A kind of fish body contour outline measuring set and measurement method for gear selectivity research |
| CN109556487B (en) * | 2018-11-26 | 2020-09-18 | 中国水产科学研究院南海水产研究所 | Fish body contour measuring device and measuring method for fishing gear selectivity research |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |