Research Progress on Shear Mechanical Properties of Deep High−temperature and High−pressure Rock Mass

RUI Xusheng; YANG Qingshuai; ZHOU Chuanhong; ZHANG Shixiong; ZHANG Hongwei; SONG Jiajun; WU Wenling

doi:10.13779/j.cnki.issn1001-0076.2025.02.001

2025 Vol. 45, No. 2

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Article navigation > Conservation and Utilization of Mineral Resources > 2025 > 45(2): 1-13

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RUI Xusheng, YANG Qingshuai, ZHOU Chuanhong, ZHANG Shixiong, ZHANG Hongwei, SONG Jiajun, WU Wenling. Research Progress on Shear Mechanical Properties of Deep High−temperature and High−pressure Rock Mass[J]. Conservation and Utilization of Mineral Resources, 2025, 45(2): 1-13. doi: 10.13779/j.cnki.issn1001-0076.2025.02.001

Citation:

RUI Xusheng, YANG Qingshuai, ZHOU Chuanhong, ZHANG Shixiong, ZHANG Hongwei, SONG Jiajun, WU Wenling. Research Progress on Shear Mechanical Properties of Deep High−temperature and High−pressure Rock Mass[J]. Conservation and Utilization of Mineral Resources, 2025, 45(2): 1-13. doi: 10.13779/j.cnki.issn1001-0076.2025.02.001

Research Progress on Shear Mechanical Properties of Deep High−temperature and High−pressure Rock Mass

1.
Key Laboratory of Disaster Prevention and Disposal in Coal Mining, Ministry of Emergency Management, China University of Mining and Technology (Beijing), Beijing 100083, China
2.
Engineering Research Center of Green and Intelligent Mining for Thick Coal Seam, Ministry of Education, Beijing 100083, China

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Corresponding author: ZHANG Hongwei, hongwei@cumtb.edu.cn

Received Date: 12 November 2024

Publish Date: 15 April 2025

Abstract

Abstract

As a clean and renewable dominant resource for power generation in the geothermal field, deep dry hot rock is a premium−quality geothermal rock mass with high−temperature and high−pressure, low porosity and low permeability, it is necessary to carry out seepage−increasing mining through thermal storage water fracturing technology. In the process of hydraulic fracturing and reservoir construction, low−pressure water injection induces shear slip of fracture network or primary fracture, which promotes the fracture to realize dislocation support under its rough surface. It is one of the main technical methods of thermal reservoir permeability enhancement. Its theoretical basis is the shear mechanical properties of high−temperature and high−pressure rock mass. In order to spectify the research progress of shear mechanical behavior of high−temperature and high−pressure rock mass, based on the conventional shear mechanics theory and laboratory test methods, we generalize the research status of shear theoretical model of high temperature and pressure rock mass, introduce the progress of shear test equipment of high temperature and pressure rock mass, comprehensively review the shear physical and mechanical propertie, deformation and failure laws of high−temperature and high−pressure rock mass, summarize and discusse the influence mechanism of thermal stress and thermal shock effect on rock microstructure.
- enhanced geothermal systems /
- hot dry rock /
- shear test method /
- physical and mechanical properties /
- deformation characteristics.

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References

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