Title:
HEALTH DIAGNOSIS APPARATUS AND METHOD FOR ROADBED SERVICE PERFORMANCE
Document Type and Number:
WIPO Patent Application WO/2022/267281
Kind Code:
A1
Abstract:
The present disclosure discloses a health diagnosis apparatus and method for roadbed service performance, the apparatus comprising: a loading apparatus, which is used for applying a load to a road; a data collection apparatus, which is used for collecting stress and vertical displacement generated by a road surface when a load is applied to the road; and a data analysis apparatus, which is used for performing spectral analysis on the vertical displacement signal, obtaining the propagation velocity of Rayleigh waves of a road surface layer and the thickness of the road surface layer, and obtaining the elasticity modulus of the road surface layer according to the propagation velocity. The stress, the vertical displacement, the road surface layer elasticity modulus and the road surface layer thickness are inputted into a trained roadbed soil modulus calculation model, so as to obtain a roadbed soil elasticity modulus; and a dynamic deformation value of the roadbed under a standard load is obtained according to the road surface layer elasticity modulus, the roadbed soil elasticity modulus and the road surface layer thickness; and the health state of the roadbed is evaluated according to the dynamic deformation value of the roadbed under the standard load. Thus, non-destructive detection of the health state of a roadbed is achieved.
Inventors:
LU ZHENG (CN)
TANG CHUXUAN (CN)
YAO HAILIN (CN)
LIU JIE (CN)
ZHAN YONGXIANG (CN)
LUO XINGWEN (CN)
YANG MINGLIANG (CN)
ZHAO YANG (CN)
TANG CHUXUAN (CN)
YAO HAILIN (CN)
LIU JIE (CN)
ZHAN YONGXIANG (CN)
LUO XINGWEN (CN)
YANG MINGLIANG (CN)
ZHAO YANG (CN)
Application Number:
PCT/CN2021/126510
Publication Date:
December 29, 2022
Filing Date:
October 26, 2021
Export Citation:
Assignee:
INST ROCK & SOIL MECH CAS (CN)
International Classes:
E02D1/08; G06F30/27; G06F17/12; G06F119/14
Foreign References:
| CN113408204A | 2021-09-17 | |||
| CN112127342A | 2020-12-25 | |||
| CN101684631A | 2010-03-31 | |||
| JP2004332400A | 2004-11-25 |
Other References:
ZUO KUN: "Research on Effect of New-built High-speed Railway on Adjacent Operating Railway Subgrade in Service Status", CHINESE DOCTORAL DISSERTATIONS FULL-TEXT DATABASE, UNIVERSITY OF CHINESE ACADEMY OF SCIENCES, CN, no. 12, 15 December 2014 (2014-12-15), CN , XP093016604, ISSN: 1674-022X
Attorney, Agent or Firm:
JINAN SHENGDA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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