scholarly journals Study of Shear Capacity of Jointed Rock Mass with Prestressed Anchor Bolt

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Yufei Zhao ◽  
Hongtao Zhang ◽  
Yong Nie
Keyword(s):  
Mechanical Property ◽  
Rock Mass ◽  
Jointed Rock ◽  
Jointed Rock Mass ◽  
Shear Capacity ◽  
Anchor Bolt ◽  
Engineering Research ◽  
Shearing Strength ◽  
Stress And Deformation ◽  
Prestressed Anchor

Rock mass failure caused by jointed plane is the common disaster in geotechnical engineering. Research on shearing property of jointed rock mass with prestressed anchor bolt and its mechanical property is an aspect for the stability analysis of rock slope and tunnel. This paper studies the stress and deformation of bolt and jointed plane, as well as anchored body and rock mass during shearing by indoor model testing and theoretical analysis. The shearing strength and mechanical property of anchored jointed plane have been systematically studied, and the additional force caused by deformation of prestressed anchor bolt and jointed rock mass during the shearing has been proposed and verified. The anchorage interaction between rock mass and bolt is revealed.

Parameter analysis of anchor bolt support for large-span and jointed rock mass

2005 ◽  
Vol 12 (4) ◽  
pp. 483-487 ◽  
Author(s):  
Xi-bing Li ◽  
Zi-long Zhou ◽  
Qi-yue Li ◽  
Liu-qing Hu
Keyword(s):  
Rock Mass ◽  
Jointed Rock ◽  
Jointed Rock Mass ◽  
Parameter Analysis ◽  
Anchor Bolt ◽  
Large Span ◽  
Bolt Support

An experimental investigation on mechanical property and anchorage effect of bolted jointed rock mass

2017 ◽  
Vol 21 (2) ◽  
pp. 253-265 ◽  
Author(s):  
Yong Li ◽  
Chao Li ◽  
Lei Zhang ◽  
Weishen Zhu ◽  
Shucai Li ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Experimental Investigation ◽  
Rock Mass ◽  
Jointed Rock ◽  
Jointed Rock Mass

Analysis of TBM Tunnel Behavior in Jointed Rock Mass

2011 ◽  
Vol 90-93 ◽  
pp. 2033-2036 ◽  
Author(s):  
Jin Shan Sun ◽  
Hong Jun Guo ◽  
Wen Bo Lu ◽  
Qing Hui Jiang
Keyword(s):  
Rock Mass ◽  
Numerical Models ◽  
Jointed Rock ◽  
In Situ Stress ◽  
Jointed Rock Mass ◽  
Joint Orientation ◽  
Joint Spacing ◽  
Factors Affecting ◽  
Dip Angle

The factors affecting the TBM tunnel behavior in jointed rock mass is investigated. In the numerical models the concrete segment lining of TBM tunnel is concerned, which is simulated as a tube neglecting the segment joint. And the TBM tunnel construction process is simulate considering the excavation and installing of the segment linings. Some cases are analyzed with different joint orientation, joint spacing, joint strength and tunnel depth. The results show that the shape and areas of loosing zones of the tunnel are influenced by the parameters of joint sets and in-situ stress significantly, such as dip angle, spacing, strength, and the in-situ stress statement. And the stress and deformation of the tunnel lining are influenced by the parameters of joint sets and in-situ stress, too.

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