Investigating the anchorage performance of full-grouted anchor bolts with a modified numerical simulation method

J Chen, B Zeng, L Liu, K Tao, H Zhao, C Zhang… - Engineering Failure …, 2022 - Elsevier
To reveal the failure mechanism of full-grouted bolting system, revised Pile elements were
selected to numerically reveal the anchoring performance of full-grouted anchor bolts. A tri …

Failure and stability analysis of deep soft rock roadways based on true triaxial geomechanical model tests

Q Zhu, T Li, Y Du, H Zhang, J Ran, W Li… - Engineering Failure …, 2022 - Elsevier
The deformation and failure of deep soft rock roadways become more prominent. In this
paper, two true triaxial model tests were carried out to investigate the deformation and failure …

Numerical simulation of fully encapsulated rock bolts with a tri-linear constitutive relation

J Chen, D Li - Tunnelling and Underground Space Technology, 2022 - Elsevier
This paper modified the original structural elements of pile in FLAC3D to analyse the
performance of rock bolts. For the contact surface between the bar and the binding grout …

Studying the performance of fully encapsulated rock bolts with modified structural elements

J Chen, H Zhao, F He, J Zhang, K Tao - International Journal of Coal …, 2021 - Springer
Numerical simulation is a useful tool in investigating the loading performance of rock bolts.
The cable structural elements (cableSELs) in FLAC3D are commonly adopted to simulate …

Analytical model of fully grouted bolts in pull-out tests and in situ rock masses

Z Jin-feng, Z Peng-hao - International Journal of Rock Mechanics and …, 2019 - Elsevier
The dynamic evolution characteristic of the bond strength at the interface of a bolt and a rock
mass under an axial tensile load and the mechanical behavior of fully grouted bolts in situ …

Laboratory investigations into the failure mechanisms of new yielding and inflatable rockbolts under axial and shearing loading conditions

D Li, S Ma, M Lane, P Chang, B Crompton… - Rock Mechanics and …, 2023 - Springer
Rockbolts are widely used in the tunnels and underground mining industry for support and
reinforcement of the rock mass around the perimeter of the excavation. Better understanding …

Study on early hydration and mechanical properties of ferrite-rich calcium sulfoaluminate cement-based grouting materials

X Qiu, W Chen, J Yuan, X Shu, X Tan, G Wu… - … and Building Materials, 2024 - Elsevier
Grouting materials play a very important role in the performance of anchor structures. In this
study, a new grouting material (FCSA-1) consisting of ferrite-rich calcium sulfoaluminate …

Geo-mechanical model test on the collaborative bearing effect of rock-support system for deep tunnel in complicated rock strata

Q Zhang, M Ren, K Duan, W Wang, Q Gao, H Lin… - … and Underground Space …, 2019 - Elsevier
Modern tunnel support design theory holds that surrounding rock not only generates load,
but also takes load together with support system. However, how much loads will be taken by …

Study on bonding performance and load transfer model between polyurethane anchor bolts and silty soil

P Li, M Shi, Y Xia, B Xue, C Zhang, J Chen… - … and Building Materials, 2023 - Elsevier
The bonding performance between the anchor anchorage body and soil is an important
index to evaluate the anchoring performance of anchor bolts. In this work, the vertical …

Experimental investigation on the shear behavior of the bolt-grout interface under CNL and CNS conditions considering realistic bolt profiles

C Wang, Y Jiang, G Wang, H Luan, Y Zhang… - … and Geophysics for Geo …, 2022 - Springer
Exploring the shear behavior of the bolt-grout interface is crucial to the reinforcement of the
rock mass in many geotechnical engineering applications, yet few studies have been carried …