一种适用于层状岩体的各向异性强度准则

doi:10.13722/j.cnki.jrme.2024.0152

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Abstract Layered rock mass has distinct microstructures such as bedding planes and microcracks，and exhibits complex anisotropic strength characteristics after being loaded. The anisotropic characteristic of spatial structure is the internal factor，which can be characterized by joint invariants of microstructure tensor and stress tensor，and additional load inducing the rock mass failure is the external factor. There are potential failure planes inside the rock mass under external loads，and the failure strength is determined by inherent strength of the location of the potential failure planes. The SMP criterion explains the positional relationship between the stress loading direction and the paired potential failure planes in the material. The anisotropic strength criterion(ASMP criterion) for layered rock mass is constructed based on the SMP criterion，considering the variation of inherent strength as well as the location of failure plane. Compared with the SMP criterion，there are only two newly added strength values measured by experiments directly in the ASMP criterion. Comparing the existing experimental data and the calculation results of ASMP criterion，it is found that ASMP criterion can effectively predict the failure strength and plane position in multiple types of layered rock masses under complex stress paths，including conventional triaxial and true triaxial compression.

Key words： rock mechanics layered rock mass anisotropic ASMP strength criterion potential failure planes

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	Articles by authors
	ZHANG Yajun
	DONG Tong
	DONG Hongxiao
	ZHANG Tianyu

Cite this article:

ZHANG Yajun,DONG Tong,DONG Hongxiao, et al. An anisotropic strength criteria for layered rock mass[J]. , 2024, 43(10): 2511-2519.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2024.0152 OR https://rockmech.whrsm.ac.cn/EN/Y2024/V43/I10/2511

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