Anchorage performance of a modified cable anchor subjected to different joint opening conditions

J Chen, P Liu, L Liu, B Zeng, H Zhao, C Zhang… - … and Building Materials, 2022 - Elsevier
In tunnelling engineering, the cable anchor is usually used to reinforce the surrounding rock
mass. Site observation shows that the cable anchor may be subjected to different joint …

Bond of cement grouted reinforcing bars under constant radial pressure

M Moosavi, A Jafari, A Khosravi - Cement and Concrete Composites, 2005 - Elsevier
A ribbed rebar or rock bolt, grouted with Portland cement is the most common type of
reinforcement in geomechanical projects such as tunnels, rock slopes and foundations. Due …

An analytical model of the load transfer behavior of fully grouted cable bolts

J Chen, S Saydam, PC Hagan - Construction and Building Materials, 2015 - Elsevier
An analytical model for the behaviour of fully grouted cable bolts under axial loading
condition is provided in this paper. This theoretical approach considers the elastic, softening …

Effect of pretension on the performance of cable bolts and its optimisation in underground coal mines with various geological conditions

X Li, G Si, J Oh, P Corbett, T O'Sullivan, Z Xiang… - International Journal of …, 2022 - Elsevier
Pretension is the pre-added axial tensile force on fully grouted bolt systems, which include
rock bolts and cable bolts. Although a series of studies via lab testing and analytical …

Numerical estimation of suitable gob-side filling wall width in a highly gassy longwall mining panel

G Zhang, Y Tan, S Liang, H Jia - International Journal of …, 2018 - ascelibrary.org
Determining a suitable width of gob-side filling wall (GFW) is a major concern in the
application of gob-side entry retaining (GER) technology in highly gassy coal mines. This …

Laboratory investigation on shear behaviors of bolt–grout interface subjected to constant normal stiffness

C Zhang, G Cui, L Deng, H Zhou, J Lu, F Dai - Rock Mechanics and Rock …, 2020 - Springer
Shear behavior of the bolt–grout interface basically depends on site-specific boundary
conditions, ie, initial normal stress and normal stiffness of the borehole wall. Few studies …

A constitutive model for load-displacement performance of modified cable bolts

D Li, H Masoumi, S Saydam, PC Hagan - Tunnelling and Underground …, 2017 - Elsevier
Cable bolts are extensively used in mining and civil structures as one of the most important
support systems for ground control. In order to design an effective support system …

Two-dimensional numerical analysis on the rock/bolt interaction considering shear and normal relative displacements

P Oreste, G Spagnoli - Tunnelling and Underground Space Technology, 2024 - Elsevier
Fully-grouted passive bolts are widely used in underground or surface rock excavations and
in particular in stabilizing potentially unstable blocks of rock due to sliding on natural …

Experimental study on the pullout behaviour of rockbolts with steel fiber-reinforced grout under constant confining pressures

Y Li, Y Tan, A Ahmed, H Cheng - Construction and Building Materials, 2023 - Elsevier
Deep underground excavation in civil and mining engineering motivates the development of
high-strength rockbolting reinforcement. A feasible way to promote the performance of the …

Comparative analysis of anchor cables in pullout tests using distributed fiber optic sensors

W Chen, C Hong, X Chen, G Luo… - Canadian Geotechnical …, 2023 - cdnsciencepub.com
The interaction mechanism between grouted anchor cables and the surrounding rock mass
or soil are complicated and difficult to investigate using conventional monitoring …