Results 101 to 110 of about 320,219 (409)

The effect of thermal–hydro–mechanical coupling on grouting in a single fracture under coal mine flowing water conditions

open access: yesDeep Underground Science and Engineering, EarlyView.
Higher temperature leads to a better relative sealing efficiency with a slow flow rate. Temperature change shows a negative correlation with the seepage pressure and the grouting pressure. The “equivalent grouting point offset” effect of grouting shows an eccentric elliptical propagation.
Dingyang Zhang, Dangping Liu
wiley   +1 more source

Inferring transport characteristics in a fractured rock aquifer by combining single-hole GPR reflection monitoring and tracer test data [PDF]

open access: yesWater Resources Research, 48, W11521 (2012), 2017
Investigations of solute transport in fractured rock aquifers often rely on tracer test data acquired at a limited number of observation points. Such data do not, by themselves, allow detailed assessments of the spreading of the injected tracer plume.
arxiv   +1 more source

Hydrologic Connectivity in the Edwards Aquifer between San Marcos Springs and Barton Springs during 2009 Drought Conditions

open access: yesTexas Water Journal, 2011
A study of water level data collected during the 2009 drought was conducted to determine if there is a hydrologic connection between the San Antonio segment and Barton Springs segment of the Edwards Aquifer.
Larry F. Land   +3 more
doaj  

Use of water from small alluvial aquifers for irrigation in semi-arid regions. [PDF]

open access: yes, 2011
Water from small alluvial aquifers constitutes an attractive and low-cost option for irrigation and rural development in Northeastern Brazil. Based on piezometric measurements, geochemical analyses and electrical conductivity estimates, the present case ...
Burte, Julien Daniel Pierre   +2 more
core   +4 more sources

Aquifer Vulnerability Assessment for Sustainable Groundwater Management Using DRASTIC

open access: yes, 2017
Groundwater management and protection has been facilitated by computational modeling of aquifer vulnerability and monitoring aquifers using groundwater sampling.
W. Jang, B. Engel, J. Harbor, L. Theller
semanticscholar   +1 more source

Evaluation of the CO2 storage potential in CO2‐enhanced oil recovery: A case study of the Subei Basin, Jiangsu Province, China

open access: yesDeep Underground Science and Engineering, EarlyView.
CO2‐enhanced oil recovery (CO2‐EOR) is an economically viable carbon capture, utilization, and storage (CCUS) technique that is widely practiced and contributes significantly to the achievement of carbon‐neutral cities. However, few studies have been conducted on CO2‐EOR source–sink matching involving different emission sources, different carbon ...
Lingxiang Wei   +8 more
wiley   +1 more source

Field investigation of grout propagation within a caving mass under flowing water conditions in a metal mine

open access: yesDeep Underground Science and Engineering, EarlyView.
This study investigated the characteristics of two‐liquid slurry propagation filling of underground concealed spaces under flowing water conditions in metal mines using on‐site engineering tests. We proposed four different grout stratigraphic classifications, investigated four main factors affecting grout propagation, and summarized five different ...
Baofu Wu   +5 more
wiley   +1 more source

Deep-learning-based coupled flow-geomechanics surrogate model for CO$_2$ sequestration [PDF]

open access: yesarXiv, 2021
A deep-learning-based surrogate model capable of predicting flow and geomechanical responses in CO2 storage operations is presented and applied. The 3D recurrent R-U-Net model combines deep convolutional and recurrent neural networks to capture the spatial distribution and temporal evolution of saturation, pressure and surface displacement fields.
arxiv  

A Columbia River Basalt Group Aquifer in Sustained Drought: Insight from Geophysical Methods

open access: yesResources, 2015
Aquifers within the Columbia River Basalt Group (CRBG) provide a critical water supply throughout much of the Pacific Northwest of the United States. Increased pumping has resulted in water level declines in this region. Recharge into this aquifer system
Mark W. Piersol, Kenneth F. Sprenke
doaj   +1 more source

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