Results 251 to 260 of about 83,589 (312)

Shear behavior of bolt–grout interfaces under constant normal stiffness: Influence of grout strength and thickness

Deep Underground Science and Engineering, EarlyView.
The effects of grout strength and thickness on the shear behavior of bolt–grout interfaces (BGI) under constant normal stiffness conditions are investigated. Shear strength, failure modes, and acoustic emission characteristics are examined. The findings reveal that grout strength exerts a significantly greater influence on BGI shear strength and ...
Sunhao Zhang, Dongqi Shang, Yujing Jiang, Jinge Zhang, Hongbin Chen, Tianqi Jiang   +5 more
wiley   +1 more source

A Refined Rotation Forest-Based Ensemble Classifier for Lithological Mapping with ZY1-02D Hyperspectral Remote Sensing Imagery. [PDF]

Sensors (Basel)
Xi J, Gao H, Zang W, Zhao X, Liu M, Li B.   +5 more
europepmc   +1 more source

Generalized Matsuoka–Nakai criterion considering hydrostatic pressure dependence in the brittle–ductile region

Deep Underground Science and Engineering, EarlyView.
Three sets of strength data were selected, including hydrostatic pressure independent within the brittle region (HPI‐B), hydrostatic pressure dependent within the brittle region (HPD‐B), and hydrostatic pressure dependent within the brittle–ductile region (HPD‐BD). For HPI type, the failure envelope within the deviatoric plane remains constant.
Jiacun Liu, Junjie Xiao, Dongping Liu, Ying Xu   +3 more
wiley   +1 more source

Quantitative mapping of geological samples by electron microprobe using mean atomic number (MAN) background corrections: method application, data processing and visualization. [PDF]

MethodsX
Hamelin C.
europepmc   +1 more source

Experimental study on burning rate and flame geometry in construction tunnel fires under high geothermal conditions

Deep Underground Science and Engineering, EarlyView.
Abstract As tunnel construction advances in lengths and depths, the construction of tunnels in high geothermal environments has become increasingly common, raising significant fire risks. In this study, a 1:20 scale model tunnel test platform was constructed to investigate the effects of a high geothermal environment on fire behavior in tunnels during ...
Xiaoxian Fei, Maozhen Liu, Jiayi Ha, Linbo Du, Zhi Li, Yuhao Li, Chuangang Fan   +6 more
wiley   +1 more source

Three-dimensional spatial representation method for semantic boundaries in digital outcrop models. [PDF]

Sci Rep
Dong Z, Zhang H, Qu Y, Yang S, Yang H, Tang P.   +5 more
europepmc   +1 more source

Gallium Abundance and Isotope Geochemistry in Coal and Mudstone from the Huainan-Huaibei Coalfield: Implications for Geological Processes and Resource Utilization. [PDF]

ACS Omega
Wang C, Liu H, Wu D, Zhao S, Hu G, Liu W, Luo H.   +6 more
europepmc   +1 more source

Leveraging remote sensing, geophysical methods and AHP model to determine optimal locations for green hydrogen production on Egypt's Mediterranean coast. [PDF]

Sci Rep
El Hateem YY, Diab AI, El-Sayed HM, El Maghraby MMS, Fahil AS.   +4 more
europepmc   +1 more source

Integrated UAV photogrammetry and SMRM constitutive modeling for spatial stability assessment of layered rock slopes. [PDF]

PLoS One
Shan H, Wang Z, Wu J, Wang W, Lu J, Wu F, Li Z.   +6 more
europepmc   +1 more source

An integrated multi-hazard assessment using machine learning in the complex terrains of Northern Pakistan. [PDF]

Sci Rep
Khan MI, Shafique M, Khattak GA, Yahya A, Badruddin IA.   +4 more
europepmc   +1 more source