Title:
METHOD FOR DETERMINING INTERFACE ROUGHNESS OF BLOCK STONE BASED ON BLOCK STONE CONTOUR
Document Type and Number:
WIPO Patent Application WO/2023/173570
Kind Code:
A1
Abstract:
A method for determining interface roughness of a block stone based on a block stone contour. The method comprises: photographing a digital image of a block stone, and obtaining a block stone contour data point in a manner of image recognition; then resetting the gravity center of the block stone to a coordinate origin (0, 0), smoothing a block stone contour point data set P1(x, y) by using Savitzky-Golay convolution, converting the block stone contour point data set P1(x, y) and a smoothed point data set Ps(x, y) into a polar coordinate data format, and performing linear interpolation, difference operation, Fourier series expansion fitting and other processing to obtain a digital interface model f(x, y) capable of reflecting real surface roughness of the block stone; and finally solving interface roughness JRC of the block stone. The method can efficiently and repeatedly digitize an irregular block stone contour, has the characteristics such as repeatability, high efficiency and convenience and the advantage of high scientific credibility, and can be widely applied to geotechnical engineering.
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Inventors:
XU CHUANHUA (CN)
XU QUAN (CN)
DAI YONGXIN (CN)
LI YUE (CN)
LU JINGBIAO (CN)
REN XINHUA (CN)
ZENG XUEMIN (CN)
XU QUAN (CN)
DAI YONGXIN (CN)
LI YUE (CN)
LU JINGBIAO (CN)
REN XINHUA (CN)
ZENG XUEMIN (CN)
Application Number:
PCT/CN2022/092441
Publication Date:
September 21, 2023
Filing Date:
May 12, 2022
Export Citation:
Assignee:
SINOSTEEL MAANSHAN GENERAL INSTITUTE OF MINING RES CO LTD (CN)
HUAWEI NATIONAL ENGINEERING RES CENTER OF HIGH EFFICIENT RECYCLE AND UTILIZATION FOR METALLIC MINERA (CN)
HUAWEI NATIONAL ENGINEERING RES CENTER OF HIGH EFFICIENT RECYCLE AND UTILIZATION FOR METALLIC MINERA (CN)
International Classes:
G06T5/00
Foreign References:
| JP2006107209A | 2006-04-20 | |||
| CN109408888A | 2019-03-01 |
Other References:
ZHAO, XINYAO: "Numerical Analysis Method of Soil-Rock Mixture Based on Block-Rock Database", BASIC SCIENCES, CHINA DOCTORAL DISSERTATIONS FULL-TEXT DATABASE, no. 2, 15 February 2022 (2022-02-15), pages 13 - 26, ISSN: 1674-022X
ZHAO XIN-YAO, ZHAO XIN-YAO, JIAN-GONG CHEN, ZHANG HAI-QUAN, ZE-JUN YANG, HU RI-CHENG: "Random generation of soil-rock mixture models by rock shape database using digital imaging technology", ROCK AND SOIL MECHANICS, vol. 39, no. 12, 1 December 2018 (2018-12-01), pages 4691 - 4697, XP093091005, DOI: 10.16285/j.rsm.2017.0850
ZHAO XIN-YAO, ZHAO XIN-YAO, JIAN-GONG CHEN, ZHANG HAI-QUAN, ZE-JUN YANG, HU RI-CHENG: "Random generation of soil-rock mixture models by rock shape database using digital imaging technology", ROCK AND SOIL MECHANICS, vol. 39, no. 12, 1 December 2018 (2018-12-01), pages 4691 - 4697, XP093091005, DOI: 10.16285/j.rsm.2017.0850
Attorney, Agent or Firm:
MA'ANSHAN CITY JINQIAO PATENT AGENT LTD. (CN)
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