Title:
HIGH-PRECISION CONTINUOUS RAPID SUBGRADE MOISTURE MEASUREMENT METHOD AND SYSTEM WITHOUT DAMAGE TO PAVEMENT
Document Type and Number:
WIPO Patent Application WO/2024/065960
Kind Code:
A1
Abstract:
Provided are a high-precision continuous rapid subgrade moisture measurement method and system without damage to a pavement. The method comprises the following steps: obtaining GPR graph data and CCR graph data of a road site to be measured (S1); constructing a pavement material dielectric constant-moisture content relation model, a pavement material resistivity-moisture content relation model, and a subgrade filler resistivity-moisture content relation model (S2); obtaining a pavement thickness and a dielectric constant according to the GPR graph data, and obtaining a pavement moisture content according to the obtained pavement thickness and dielectric constant, and the pavement material dielectric constant-moisture content relation model (S3); and obtaining the spatial distribution of the subgrade moisture content according to the CCR graph data, the pavement thickness, the pavement moisture content, and the subgrade filler resistivity-moisture content relation model (S4). By acquiring imaging data of a road to be measured, and constructing moisture content relation models, the spatial distribution of the subgrade moisture content is indirectly obtained, and the present application has the advantages of no damage to a pavement, rapid measurement, continuous measurement, and high-precision measurement.
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Inventors:
FU WEI (CN)
WANG YUN (CN)
HE BIN (CN)
ZHANG CHEN (CN)
LIU SHUAI (CN)
ZHU KUN (CN)
RUAN YANBIN (CN)
ZHANG JING (CN)
LIU XING (CN)
GU LIZHOU (CN)
ZHANG HANG (CN)
WANG YUN (CN)
HE BIN (CN)
ZHANG CHEN (CN)
LIU SHUAI (CN)
ZHU KUN (CN)
RUAN YANBIN (CN)
ZHANG JING (CN)
LIU XING (CN)
GU LIZHOU (CN)
ZHANG HANG (CN)
Application Number:
PCT/CN2022/130587
Publication Date:
April 04, 2024
Filing Date:
November 08, 2022
Export Citation:
Assignee:
CCCC SECOND HIGHWAY CONSULTANTS CO LTD (CN)
International Classes:
G01N27/00; G01N27/04; G01N27/22
Foreign References:
| CN111398687A | 2020-07-10 | |||
| CN114034740A | 2022-02-11 | |||
| US20080042653A1 | 2008-02-21 |
Other References:
SHENG ZENG, LI ZHEN-CUN, ZHAO JIAN, WEI HUI,YIN CHANG-BIN, LI JUN: "New technology of rapid,nondestructive and comprehensive testing for operation highway subgrade disease", JOURNAL OF CHANGSHA UNIVERSITY OF SCIENCE & TECHNOLOGY(NATURAL SCIENCE), vol. 10, no. 2, 28 June 2013 (2013-06-28), pages 1 - 8, XP093151621
JIN-GUO WANG, YU XIAO-MING, XU CHUN-LONG, WEI JUN-BO: "A study of the methods to extract water content of soil roadbed using ground penetrating radar data ", JOURNAL OF NORTHWEST UNIVERSITY(NATURAL SCIENCE EDITION), vol. 40, 25 February 2010 (2010-02-25), pages 61 - 64, XP093151623
DE PASCALE GREGORY P., POLLARD WAYNE H., WILLIAMS KEVIN K.: "Geophysical mapping of ground ice using a combination of capacitive coupled resistivity and ground‐penetrating radar, Northwest Territories, Canada", JOURNAL OF GEOPHYSICAL RESEARCH, AMERICAN GEOPHYSICAL UNION, US, vol. 113, no. F2, 1 June 2008 (2008-06-01), US , pages F02S90, XP093151616, ISSN: 0148-0227, DOI: 10.1029/2006JF000585
LIU SIXIN, LU QI, LI HONGQING, WANG YUANXIN: "Estimation of Moisture Content in Railway Subgrade by Ground Penetrating Radar", REMOTE SENSING, MOLECULAR DIVERSITY PRESERVATION INTERNATIONAL (MDPI), CH, vol. 12, no. 18, 8 September 2020 (2020-09-08), CH , pages 2912, XP093151617, ISSN: 2072-4292, DOI: 10.3390/rs12182912
WALKER JEFFREY P., HOUSER PAUL R.: "Evaluation of the OhmMapper Instrument for Soil Moisture Measurement", SOIL SCIENCE SOCIETY OF AMERICA. JOURNAL, SOIL SCIENCE SOCIETY OF AMERICA, US, vol. 66, no. 3, 1 May 2002 (2002-05-01), US , pages 728 - 734, XP093151619, ISSN: 0361-5995, DOI: 10.2136/sssaj2002.7280
JIN-GUO WANG, YU XIAO-MING, XU CHUN-LONG, WEI JUN-BO: "A study of the methods to extract water content of soil roadbed using ground penetrating radar data ", JOURNAL OF NORTHWEST UNIVERSITY(NATURAL SCIENCE EDITION), vol. 40, 25 February 2010 (2010-02-25), pages 61 - 64, XP093151623
DE PASCALE GREGORY P., POLLARD WAYNE H., WILLIAMS KEVIN K.: "Geophysical mapping of ground ice using a combination of capacitive coupled resistivity and ground‐penetrating radar, Northwest Territories, Canada", JOURNAL OF GEOPHYSICAL RESEARCH, AMERICAN GEOPHYSICAL UNION, US, vol. 113, no. F2, 1 June 2008 (2008-06-01), US , pages F02S90, XP093151616, ISSN: 0148-0227, DOI: 10.1029/2006JF000585
LIU SIXIN, LU QI, LI HONGQING, WANG YUANXIN: "Estimation of Moisture Content in Railway Subgrade by Ground Penetrating Radar", REMOTE SENSING, MOLECULAR DIVERSITY PRESERVATION INTERNATIONAL (MDPI), CH, vol. 12, no. 18, 8 September 2020 (2020-09-08), CH , pages 2912, XP093151617, ISSN: 2072-4292, DOI: 10.3390/rs12182912
WALKER JEFFREY P., HOUSER PAUL R.: "Evaluation of the OhmMapper Instrument for Soil Moisture Measurement", SOIL SCIENCE SOCIETY OF AMERICA. JOURNAL, SOIL SCIENCE SOCIETY OF AMERICA, US, vol. 66, no. 3, 1 May 2002 (2002-05-01), US , pages 728 - 734, XP093151619, ISSN: 0361-5995, DOI: 10.2136/sssaj2002.7280
Attorney, Agent or Firm:
WUHAN ZHIQUAN PATENT AGENT, LLP. (CN)
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