Title:
OVERLYING STRATA DAMAGE PARTITION AND HEIGHT DETERMINATION METHOD BASED ON PERMEABILITY-DAMAGE RELATIONSHIP
Document Type and Number:
WIPO Patent Application WO/2023/197821
Kind Code:
A1
Abstract:
An overlying strata damage partition and height determination method based on a permeability-damage relationship, relating to the technical field of overlying rock damage partition and height prediction of mine stopes, and comprising the following steps: step 1: rock stratum distribution and ground stress environment investigation; step 2: specimen preparation; step 3: performing a triaxial compression-seepage test on rocks of different rock strata; step 4: establishing a damage-permeability relationship; step 5: overlying strata damage region division based on the damage-permeability relationship; step 6: damage constitutive relationship construction; step 7: the damage constitutive relationship is embedded into FLAC3D software; step 8: establishing a numerical model; and step 9: performing numerical simulation to determines the height of each damage region. In the method, after a working face is mined, damage region division and height determination may be performed on the working face roof.
Inventors:
GU QINGHENG (CN)
TAN YUNLIANG (CN)
ZHAO GUANGMING (CN)
CHEN LEILEI (CN)
SUN JIAN (CN)
ZHANG RUOFEI (CN)
LIU ZHIXI (CN)
TAN YUNLIANG (CN)
ZHAO GUANGMING (CN)
CHEN LEILEI (CN)
SUN JIAN (CN)
ZHANG RUOFEI (CN)
LIU ZHIXI (CN)
Application Number:
PCT/CN2023/082079
Publication Date:
October 19, 2023
Filing Date:
March 17, 2023
Export Citation:
Assignee:
UNIV ANHUI SCI & TECHNOLOGY (CN)
International Classes:
G01N3/12; G01N15/08
Foreign References:
| CN114813371A | 2022-07-29 | |||
| CN114152566A | 2022-03-08 | |||
| CN104264721A | 2015-01-07 | |||
| CN107505204A | 2017-12-22 | |||
| CN110705165A | 2020-01-17 | |||
| CN111323562A | 2020-06-23 | |||
| CN112434473A | 2021-03-02 | |||
| CN112883542A | 2021-06-01 | |||
| US20190057168A1 | 2019-02-21 |
Other References:
QING WANG, YAO JUN, TAN WENL: "Study on Elastic Damage-Seepage Coupling Model of Rock-like Materials", PEARL RIVER, vol. 40, no. 11, 12 October 2019 (2019-10-12), pages 32 - 39, XP093099263, ISSN: 1001-9235, DOI: 10.3969/j.issn.1001-9235.2019.11.006
Attorney, Agent or Firm:
QINGDAO JINJIA PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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