Experimental Study on Anchoring Effect of Rock Bolts to Fractured Rock Mass

2010 ◽  
Author(s):  
Wei-min Yang ◽  
Nuan-dong Wen ◽  
Shu-cai Li ◽  
Xiao-jing Li
Keyword(s):  
Experimental Study ◽  
Rock Mass ◽  
Fractured Rock ◽  
Fractured Rock Mass ◽  
Rock Bolts ◽  
Anchoring Effect

scholarly journals Experimental study on the effect of grouting reinforcement on the shear strength of a fractured rock mass

PLoS ONE ◽  
2019 ◽  
Vol 14 (8) ◽  
pp. e0220643 ◽  
Author(s):  
Cheng Wang ◽  
Xuefeng Li ◽  
Zuqiang Xiong ◽  
Chun Wang ◽  
Chengdong Su ◽  
...  
Keyword(s):  
Experimental Study ◽  
Shear Strength ◽  
Rock Mass ◽  
Fractured Rock ◽  
Fractured Rock Mass ◽  
Grouting Reinforcement

Experimental study on grouting of elliptical fractured rock mass at various temperatures

2021 ◽  
Vol 14 (18) ◽  
Author(s):  
Yongqiang Yu ◽  
Jiyun Zhang ◽  
Lidan Fan ◽  
Zhijie Shi ◽  
Liang Sun
Keyword(s):  
Experimental Study ◽  
Rock Mass ◽  
Fractured Rock ◽  
Fractured Rock Mass

scholarly journals Experimental Study of the Crack Predominance of Rock-Like Material Containing Parallel Double Fissures under Uniaxial Compression

2020 ◽  
Vol 12 (12) ◽  
pp. 5188 ◽  
Author(s):  
Wei Chen ◽  
Wen Wan ◽  
Yanlin Zhao ◽  
Wenqing Peng
Keyword(s):  
Experimental Study ◽  
Rock Mass ◽  
Fracture Mechanics ◽  
Uniaxial Compression ◽  
Fractured Rock ◽  
Mining Engineering ◽  
Tunnel Engineering ◽  
Fractured Rock Mass ◽  
Safe Production ◽  
Length Difference

Fractured rock mass is a relatively complex medium in nature. It plays a key role in various projects, such as geotechnical engineering, mining engineering and tunnel engineering. Especially, the interaction between fissures has a practical function in the guidance of safe production. This paper takes its research object as rock-like material which contains prefabricated parallel double fissures. It studies how the fissures’ length difference and spacing influence the failure of specimens under uniaxial compression, and analyzes them with fracture mechanics theory. The results include two aspects. Firstly, no matter how the length difference and spacing change, the upper fissure always generates new cracks. Secondly, the length difference and spacing produce three effects on the lower fissure. (1) The fissure propagates less obviously as the length difference increases. With the increase to 40mm, the propagation does not occur at all. (2) The decrease of spacing weakens the propagation. As it is reduced to 5 mm, the propagation stops. (3) The crack propagation is more sensitive to length difference than spacing. Regardless of spacing changes, if a length difference is large enough (40 mm or more), the new crack does not expand, while if it is small enough (10 mm or less), propagation always appears.

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