THERMAL SCIENCE

International Scientific Journal

Shanjie Su

,

Chunbo Zhou

,

Shengcheng Wang

,

Feng Cai

,

Xuan Jiang

PRE-TREATMENT INFLUENCE OF LIQUID NITROGEN AND MICROWAVE ON THE MODE I FRACTURE CHARACTERISTICS OF GRANITE

ABSTRACT
Microwave and liquid nitrogen have shown great potential applications in the mining, geological, petroleum, and particularly metal mining fields. In order to further promote their application in rock tunneling engineering, this paper conducted a series of I-model fracture tests on hard rock (granite) to explore the impact of liquid nitrogen, microwave, and liquid nitrogen and microwave pretreatment on the fracture characteristics of hard rock. The results showed that compared with the control group, all pretreatment groups had varying degrees of reduction in wave speed and fracture toughness, especially the microwave and liquid nitrogen group.
KEYWORDS
microwave, LN2, fracture toughness, roughness, hardrock
PAPER SUBMITTED: 2023-06-14
PAPER REVISED: 2023-08-15
PAPER ACCEPTED: 2023-11-13
PUBLISHED ONLINE: 2024-02-18
DOI REFERENCE: https://doi.org/10.2298/TSCI230614023S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 2, PAGES [1045 - 1051]
REFERENCES
  1. Li, H., et al., Experimental Study on Coal Damage Subjected to Microwave Heating, Rock Mechanics and Rock Engineering, 53 (2020), 8, ID5631-5640
  2. Bisai, R., et al., Influence of Individual and Combined Pre-Treatment on the Strength Properties of Gran­ite and Sandstone, Arabian Journal 0f Geosciences, 13 (2020), 1, pp. 1-7
  3. Su, S. J., et al., Experimental Study on Coal Permeability and Cracking Characteristics Under LN2 Freeze-Thaw Cycles, Journal of Natural Gas Science and Engineering, 83 (2020), 11, ID103526
  4. Hou, P., et al., Influence of Liquid Nitrogen Cooling State on Mechanical Properties and Fracture Charac­teristics of Coal, Rock Mechanics and Rock Engineering, 557 (2022), 3, pp. 3817-3836
  5. Su, S. J., et al., A Fractal Perspective on Structural Damage and Fracture Characteristics of Coal Subjected to Liquid Nitrogen Cooling at Laboratory-Scale, Fractals, 30 (2022), 6, ID2250080
  6. Mcdaniel, B. W., et al., Field Applications of Cryogenic Nitrogen as A Hydraulic Fracturing Flu­id, Proceedings, SPE Annual Technical Conference and Exhibition, San Antonio, Tex., USA, 1997, 3, pp. 561-572
  7. Wang, H. C., et al., Numerical Modelling of Microwave Heating Treatment for Tight Gas Sand Reser­voirs, Journal of Petroleum Science and Engineering, 152 (2017), 4, pp. 95-504
  8. Fianu, J. S., et al., Thermal Simulation of Shale Gas Recovery Involving the Use of Microwave Heating, Journal of Petroleum Science and Engineering, 186 (2020), 3, ID106768
  9. Zhu, J. Y., et al., Numerical Simulation on the in Situ Upgrading of Oil Shale Reservoir under Microwave Heating, Fuel, 287 (2021), 2, ID119553
  10. Li, H., et al., A Fully Coupled Electromagnetic-Thermal-Mechanical Model for Coalbed Methane Ex­traction with Microwave Heating, Journal of Natural Gas Science and Engineering, 46 (2017), 10, pp. 830-844
  11. Lim, I. L., et al., Stress Intensity Factors for Semicircular Specimens under 3-Point Bending, Engineering Fracture Mechanics, 44 (1993), 3, pp. 363-82
PDF VERSION [DOWNLOAD]
Pre-treatment influence of liquid nitrogen and microwave on the mode I fracture characteristics of granite

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence