Three-dimensional forward analysis and real-time design of deep tunneling based on digital in-situ testing

W Cai, H Zhu, W Liang, BT Vu, C Su, K Zhang… - International Journal of …, 2022 - Elsevier
The mechanical behavior of a deep rock mass cannot be precisely evaluated with the
traditional theory and model used for shallow tunneling. Moreover, the deep rock mass …

A rockburst intensity criterion based on the Geological Strength Index, experiences learned from a deep tunnel

W Zhang, XT Feng, YX Xiao, GL Feng, ZB Yao… - Bulletin of Engineering …, 2020 - Springer
The occurrence of rockburst is related to the surrounding rock stress and geological rock
mass strength. Rockburst occurs frequently during the construction at a deep tunnel in …

A novel displacement back analysis method considering the displacement loss for underground rock mass engineering

Y Zhang, G Su, B Liu, T Li - Tunnelling and Underground Space …, 2020 - Elsevier
Most back analysis methods for geotechnical engineering are based on the measured
displacement. However, before the monitoring sections are assembled, the displacement …

Prediction of rock compressive strength using machine learning algorithms based on spectrum analysis of geological hammer

Q Ren, G Wang, M Li, S Han - Geotechnical and Geological Engineering, 2019 - Springer
The traditional method to estimate rock compressive strength (RCS) in field operation is
dependent on hammering rocks and artificial identification. It is too subjective to get high …

Determination of initial stress state and rock mass deformation modulus at Lavarak HEPP by back analysis using ant colony optimization and multivariable regression …

E Ghorbani, M Moosavi, MF Hossaini, M Assary… - Bulletin of Engineering …, 2021 - Springer
During the design and construction of a project, determination of geomechanical parameters
is a key factor for its success. Back analysis is an appropriate method to reduce in situ and …

A machine learning based approach for determining the stress-strain relation of grey cast iron from nanoindentation

J Weng, R Lindvall, K Zhuang, JE Ståhl, H Ding… - Mechanics of …, 2020 - Elsevier
Apart from microhardness and elastic modulus, the stress-strain relation is another important
characteristic that more and more scholars have been trying to extract from nanoindentation …

Back analysis of the initial geo-stress field of rock masses in high geo-temperature and high geo-stress

W Meng, C He - Energies, 2020 - mdpi.com
In a high geo-temperature environment, it is rarely reported that geo-temperature has been
considered during a back analysis. This may cause the initial geo-stress field that is …

Application of the ridge regression in the back analysis of a virgin stress field

W Meng, C He, Z Zhou, Y Li, Z Chen, F Wu… - Bulletin of Engineering …, 2021 - Springer
When the least square approach is used to solve regression coefficients during the back
analysis of a virgin stress field, the multicollinearity among independent variables may …

A modified initial in-situ Stress Inversion Method based onFLAC3D with an engineering application

Y Li, Y Guo, W Zhu, S Li, H Zhou - Open Geosciences, 2015 - degruyter.com
To improve the accuracy of an initial in-situstress field determined by inversion, we describe
a modified initial in-situ stress inversion method that uses partialleast-squares regression …

A nonlinear inversion method for predicting the in-situ stress field in deep coal seam based on improved long short-term memory neural network

J Zhou, B Wu, Y Nie, H Zhang - … Journal of Rock Mechanics and Mining …, 2025 - Elsevier
Existence of discontinuous geological structures, such as folds and fault, poses a great
challenge in predicting the in-situ stress fields (ISSF). This paper proposes a discontinuous …