Results 21 to 30 of about 61,837 (250)
Journal of Water and Climate Change, 2023 Groundwater pollution is now a significant threat to the ecosystem. The untreated disposal of municipal and industrial wastes through drains into water bodies (rivers, lakes, and canals) is the primary source of contamination.
Habib Ur Rehman +2 more
doaj +1 more source
A Comparison of Surface-to-Coal Mine Roadway TEM and Surface TEM Responses to Water-Enriched Bodies
IEEE Access, 2019 The surface transient electromagnetic method (TEM) is a geophysical technology normally used in detecting water-enriched zones. However, with an increase of mining depth, the accuracy and reliability of surface detection is gradually reduced, and surface
Jianghao Chang +2 more
doaj +1 more source
Journal of Applied Sciences and Environmental Management, 2018 Previous studies revealed that soil properties play a significant role in aquifer contamination. Consequently, it is necessary to understand the nature and properties of soil in carrying out groundwater evaluation.
O.M. Omorogieva, O.I. Imasuen
doaj +1 more source
In-situ measurement of rock permeability based on pneumatic tests in boreholes
Yantu gongcheng xuebao, 2017 The in-situ measurement formula for rock permeability is derived based on the theory of steady gas seepage. A rough judgement method for Darcy seepage in engineering is given based on the Pavlovsky’s Reynolds number formula.
CAO Yuan , NIU Guan-yi , WANG Tie-liang
doaj +1 more source
Borehole seismic methods for opencast coal exploration [PDF]
, 1990 Surface seismic techniques lack the resolution to image the top 100m or so of the earth's surface necessary for opencast coal exploration. The work reported in this thesis is the development of borehole seismic methods making use of the closely spaced ...
Kragh, J. Edward
core
Business Strategy and the Environment, EarlyView.ABSTRACT Environmental governance in Nigeria's oil and gas sector remains central to global climate justice debates, yet persistent accountability failures continue to undermine meaningful environmental and social outcomes. Despite extensive regulatory frameworks, accountability in resource‐dependent contexts is frequently reduced to formal reporting ...
Hammed Afolabi +2 more
wiley +1 more source
Tunnel assessment with borehole radar
, 2017 The collapse of a tunnel and the damage in a second tunnel during the construction works, forced to the assessment of the ground in the front tunnel of the second structure, in order to avoid additional problems. The first evaluation was carried out with
Caselles Magallón, Josep Oriol +3 more
core +1 more source
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 +4 more
wiley +1 more source
3D DAS VSP for Coal Seam Exploration: A Case Study from Queensland, Australia
SensorsSeismic methods are extensively used in coal mining for expanding resource discoveries and definition as well as for mine monitoring. However, the use of borehole seismic methods is relatively uncommon due to the high cost of borehole seismic acquisition
Konstantin Tertyshnikov +4 more
doaj +1 more source
Remote Sensing, 2022 Distributed acoustic sensing (DAS) has great potential for monitoring natural-resource reservoirs and borehole conditions. However, the large volume of data and complicated wavefield add challenges to processing and interpretation.
Hilary Chang, Nori Nakata
doaj +1 more source