围岩外加固抗爆炸成坑试验研究

doi:10.13722/j.cnki.jrme.2016.1646

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Abstract The homogeneous，layered and block surrounding rocks anchored by crossing cables were studied in two groups of modeling tests to improve the explosive resistivity of country rocks. The macroscopic failure mode，the swelled shape，the distribution of cracks and the size of the explosion cavity of both reinforced and unreinforced surrounding rocks were studied. The research results showed that the crossing cables increased the tension strength and shear strength of rock，the explosive resistivity of country rocks was improved notably. The degree of model destruction was significantly influenced by rock characteristics. For the anchored rocks，the swelled height of the block models are bigger than the ones of homogeneous and layered models. The rock characteristics are the main factors affecting the crack distribution of the models. The size of explosion cavity of the homogeneous model anchored by the crossing cable is the smallest，of the block model is medium，and of the layered rock is the biggest.

Key words： rock mechanics explosive resistivity model test reinforcement anchor cable rock characteristics

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	Articles by authors
	XU Gancheng1
	YUAN Weize1
	2
	GU Jincai3
	ZHANG Xiangyang3
	XIE Xuhu1

Cite this article:

XU Gancheng1,YUAN Weize1,2, et al. Modeling test on explosion cavity to study anchored surface rock around cavern[J]. , 2017, 36(10): 2441-2448.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2016.1646 OR http://www.rockmech.org/EN/Y2017/V36/I10/2441

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