注浆加固对岩体裂隙力学性质影响的试验研究

doi:10.13722/j.cnki.jrme.2016.0459

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Abstract Grouting technique reinforced the fractured rock mass significantly，and it has a great effect on the mechanical properties of rock fracture surface. A fractured rock specimen production method was presented to study the influence of grouting on mechanical properties of fractured rock mass，overcoming the difficult problems of the original rock fissure sampling. The grouting reinforcement test was carried out with the self-developed fractured rock mass grouting platform，in which the fractured specimens produced with the proposed method The normal-shear loading tests were carried out. It is indicated that artificial fractured specimens and original rock fissures are of good geometric similarity，satisfying indoor physical test requirements. The normal and tangential mechanical properties are changed significantly by grouting reinforcement. After grouting，the peak shear strength and residual strength of rock fractures and the resistance to deformation of fracture surface increase greatly. The normal load will affect tangential behavior of fissure，tangential strength increases with the normal loading. The overall strength and stability of the rock mass increase by the grouting with the enhancement of mechanical properties of rock fractures.

Key words： rock mechanics grouting reinforcement rock fracture mechanical properties

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	Articles by authors
	LIU Quansheng1
	2
	3
	LEI Guangfeng1
	LU Chaobo4
	PENG Xingxin1
	ZHANG Jing1
	WANG Juntao1

Cite this article:

LIU Quansheng1,2,3, et al. Experimental study of grouting reinforcement influence on mechanical properties of rock fracture[J]. , 2017, 36(4): 3140-3147.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2016.0459 OR https://rockmech.whrsm.ac.cn/EN/Y2017/V36/I4/3140

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