DEM study on role of fines in mobility of dry granular flows considering particle size-shape correlation

JY Nie, Y Cui, Z Wu, L Zhang, J Fang - Computers and Geotechnics, 2024 - Elsevier
Many field observations show that the shape characteristic of particles constituting natural or
industrial loose deposits is often size-correlated, that is, either more regular or irregular for …

The deformation coordination-dominated design of yielding supports applied in large deformation tunnels

K Wu, J Song, X Zheng, N Zhao, Z Shao, Z Chu - Acta Geotechnica, 2024 - Springer
Yielding supports have shown significant advantages in overcoming the problems of large
deformations caused by tunnelling in squeezing ground. The purpose of this study is to …

[HTML][HTML] Theoretical prediction of ground settlements due to shield tunneling in multi-layered soils considering process parameters

L Cao, X Chen, D Lu, D Zhang, D Su - Underground Space, 2024 - Elsevier
This paper conducts a theoretical analysis of ground settlements due to shield tunneling in
multi-layered soils which are usually encountered in urban areas. The proposed theoretical …

Prediction of the slurry pressure and inversion of formation characteristics based on a machine learning algorithm during tunnelling in a fault fracture zone

X Shen, Y Chen, L Cao, X Chen, Y Fu… - … and Underground Space …, 2024 - Elsevier
The reasonable setting of the slurry pressure is very important for the safety of shield tunnel
construction. In view of the common geological problems of high water pressure and …

Machine learning approach to predicting the macro-mechanical properties of rock from the meso-mechanical parameters

Z Wu, Y Wu, L Weng, M Li, Z Wang, Z Chu - Computers and Geotechnics, 2024 - Elsevier
The determination of fundamental rock mechanical properties, uniaxial compression
strength (UCS) and elastic modulus (E), constitutes a pivotal facet of rock engineering …

Analytical approach for the design of composite linings in deep tunnels considering the blasting damaged zone

Z Sun, D Zhang, J Wang, Y Hou - Tunnelling and Underground Space …, 2024 - Elsevier
Tunneling using the drilling and blasting method induces a blasting damaged zone around
the tunnel, which affects the tunnel stability as well as the resulting support design. In this …

Investigating the impacts of reinforcement range and grouting timing on grouting reinforcement effectiveness for tunnels in fault rupture zones using a numerical …

X Xu, Z Wu, L Weng, Z Chu, Q Liu, Z Wang - Engineering Geology, 2024 - Elsevier
In this study, an enhanced numerical manifold method (NMM) simulator is developed to
determine the combined impacts of reinforcement range and grouting timing on the …

Data-driven hierarchical multiscale FDEM for simulating rock meso-macro mechanical behavior

R Zhao, Z Wu, X Xu, Z Wang - Computer Methods in Applied Mechanics …, 2024 - Elsevier
This study presents a data-driven based hierarchical multiscale combined finite-discrete
element method (DHM-FDEM) for accurately reproducing rock macro-scale mechanical …

[HTML][HTML] Analytical solutions considering face advance and time-dependent behavior for back-analysis of convergence measurements in deep circular tunnels under …

A Tristani, J Sulem, LM Guayacán-Carrillo - International Journal of Rock …, 2024 - Elsevier
A methodology is presented for the back-analysis of convergence measurements in deep
tunnels to determine the constitutive parameters of the surrounding rock mass. Since …

[HTML][HTML] Research on stress field inversion and large deformation level determination of super deep buried soft rock tunnel

B Zhang, Z Tan, J Zhao, F Wang, K Lin - Scientific Reports, 2024 - nature.com
Understanding the characteristics and distribution patterns of the initial geo-stress field in
tunnels is of great significance for studying the problem of large deformation of tunnels …