Analysis of damage mechanisms and optimization of cut blasting design under high in-situ stresses

LX Xie, WB Lu, QB Zhang, QH Jiang, M Chen… - … and Underground Space …, 2017 - Elsevier
During excavation using the cut blasting method in deep rock masses, there are difficulties
resulting from the in-situ stress influences. This study uses numerical simulation methods to …

Experimental and numerical investigation on rock fracturing in tunnel contour blasting under initial stress

X Li, K Liu, Y Sha, J Yang, Z Hong - International Journal of Impact …, 2024 - Elsevier
In tunnel contour blasting, the rock fracturing is generally subjected to in-situ stress. In this
investigation, the rock cracking and damage in tunnel contour blasting (smooth blasting and …

[HTML][HTML] Numerical study on the effect of in-situ stress on smoothwall blasting in deep tunnelling

X Li, K Liu, J Yang, Y Sha, R Song - Underground Space, 2023 - Elsevier
In the present study, a numerical model is first calibrated against the crack networks and
pressure attenuation data in laboratory blasting test. Then, based on the calibrated …

A study of innovative cut blasting for rock roadway excavation based on numerical simulation and field tests

H Zhang, T Li, S Wu, X Zhang, W Gao, Q Shi - Tunnelling and Underground …, 2022 - Elsevier
Drilling and blasting is a common excavation method in underground engineering. In
modern mine construction, improving the efficiency of rock roadway excavation is a …

Study on cyclic blasting failure characteristics and cumulative damage evolution law of tunnel rock mass under initial in-situ stress

Z Li, Y Hu, G Wang, M Zhou, W Hu, X Zhang… - Engineering Failure …, 2023 - Elsevier
Although in-situ stress significantly affects tunnel rock mass excavation blasting, the crack
propagation law of the rock mass under both in-situ stress and cyclic blasting load has not …

An AI-powered approach to improving tunnel blast performance considering geological conditions

Y Liu, A Li, F Dai, R Jiang, Y Liu, R Chen - Tunnelling and Underground …, 2024 - Elsevier
In this study, a hybrid model was developed to improve blast performance during tunnel
excavation, which is based on a multilayer perceptron (MLP) and incorporates meta …

A study of cut blasting for one-step raise excavation based on numerical simulation and field blast tests

K Liu, Q Li, C Wu, X Li, J Li - International Journal of Rock Mechanics and …, 2018 - Elsevier
Over the past several decades, raise excavation has been widely employed in underground
mining, civil engineering and military engineering. One-step raise excavation with burn cuts …

Optimization of smooth blasting parameters for mountain tunnel construction with specified control indices based on a GA and ISVR coupling algorithm

K Liu, B Liu - Tunnelling and underground space technology, 2017 - Elsevier
The smooth blasting method has been widely used in the construction of mountain tunnels
to decrease the volume of overbreak or underbreak and maintain the tunnel outline in the …

Practical engineering geology

S Hencher - 2013 - pubs.geoscienceworld.org
Practical Engineering Geology (Hencher, 2012) states that the ''book presents a broad and
fresh view on the importance of engineering geology to civil engineering projects.''It goes on …

Stability analysis of the blast-induced damage zone by continuum and coupled continuum–discontinuum methods

D Saiang - Engineering Geology, 2010 - Elsevier
The presence of a blast-induced damage zone (BIDZ) around a tunnel boundary is of
significant concern mainly with regard to safety, stability, costs and the overall performance …