A thermal stress loading technique for large-sized hot dry rock mechanical tests

Abstract

	•A novel thermal stress loading technology is proposed for hot dry rock mechanics tests in which thermal stress is generated by thermal expansion materials due to temperature change.
	•Compared to mechanical loading, thermal stress loading is expected to reduce equipment investment, especially in high-temperature rock mechanics testing.
	•The thermal stress loading approach can achieve both isotropic loading and anisotropic loading by adjusting the expansion material and temperature configuration.

Keywords

deep rock engineering / high-temperature and high-stress conditions / hot dry rock / large-sized model test / thermal stress loading

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RIGHTS & PERMISSIONS

2024 The Authors. Deep Underground Science and Engineering published by John Wiley & Sons Australia, Ltd on behalf of China University of Mining and Technology.