Results 51 to 60 of about 4,263 (219)

ANALYSIS OF HIGH-RESOLUTION AEROMAGNETIC DATA OVER PARTS OF SOKOTO BASIN, NORTH-WEST NIGERIA

Platform, a Journal of Engineering, 2020
Sokoto Basin is one of the sedimentary basins suspected to have high hydrocarbon potential. Hence, due to the possible deposit of this economic mineral, it is worthy of being preliminarily investigated.
Saheed Oluwakemi Olokoba, Yusuf Magaji
doaj  

Review and prospects of shear test of bolted rock joints

Deep Underground Science and Engineering, EarlyView.
The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren, Fan Yang, Manchao He, Yong Yuan, Zhigang Tao   +4 more
wiley   +1 more source

Integrated approach for landslide characterization in Northern Tunisia using electric resistivity tomography, geotechnical analysis and GIS tools

Geocarto International
In Northern Tunisia, where complicated geological and hydrological conditions increase slope instability, landslides constitute a significant geohazard.
Imen Hamdi Nasr, Wissal Issaou, Nassim Hallal, Salim Lamine, Wiem Zouaoui, Sameh Khaskoussi, Achref Chaaban, Adnen Amiri, Oussama Abidi, Lamine Hamai, Mohamed Hedi Inoubli   +10 more
doaj   +1 more source

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

Unmanned Aerial Geophysical Remote Sensing: A Systematic Review

Remote Sensing
Geophysical surveys, a means of analyzing the Earth and its environments, have traditionally relied on ground-based methodologies. However, up-to-date approaches encompass remote sensing (RS) techniques, employing both spaceborne and airborne platforms ...
Farzaneh Dadrass Javan, Farhad Samadzadegan, Ahmad Toosi, Mark van der Meijde   +3 more
doaj   +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

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

Slip versus dilation tendency parameter space as a tool for prospecting structurally controlled geothermal systems in greenfield: insights from the greater Ruhr region

Deep Underground Science and Engineering, EarlyView.
This study highlights that with the static and time‐dependent evolution of slip versus dilation tendency parameter space, structurally controlled deep geothermal systems can be selected within areas of higher permeability and lower seismic hazard. Abstract Faults play a vital role in the Earth's hydraulic system by facilitating fluid flow when dilating
Michal Kruszewski, Alessandro Verdecchia, Oliver Heidbach, Rebecca M. Harrington, David Healy   +4 more
wiley   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

Deep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang, Yonghua Ye, Jianping Zuo, Baojiang Han, Weigang Jiao   +4 more
wiley   +1 more source

A new method of alternating shooting of two different seismic sources for deep geophysical surveys. [PDF]

Sci Rep, 2023
Liu C, Fu J, Hua Q, Liu K, Zhi P, Pei Y, Zhou Q, Li X, Liu B.   +8 more
europepmc   +1 more source